experimental/Intersection/as.htm - skia - Git at Google

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 <div id="cubicOp36u">
   SimplifyNew_Test [cubicOp36u]
 {{0,1}, {1,6}, {2,0}, {5,1}},
 {{5,1}, {0,1}},
 op union
 {{0,2}, {1,5}, {1,0}, {6,1}},
 {{6,1}, {0,2}},
 debugShowCubicIntersection no self intersect {{0,2}, {1,5}, {1,0}, {6,1}}
 debugShowCubicLineIntersection wtTs[0]=0 {{0,2}, {1,5}, {1,0}, {6,1}} {{0,2}} wtTs[1]=0.633333333 {{2.2208888888888882,1.6298518518518521}} wtTs[2]=1 {{6,1}} wnTs[0]=1 {{6,1}, {0,2}} wnTs[1]=0.629851852 wnTs[2]=0
 debugShowCubicIntersection wtTs[0]=0.281761651 {{0,2}, {1,5}, {1,0}, {6,1}} {{0.74132978521392334,2.9436691246202122}} wtTs[1]=0.83051493 {{3.8593908381032738,0.94043932231067462}} wtTs[2]=0.830515061 {{3.8593922073023155,0.94043907360367252}} wtTs[3]=0.867315861 {{4.2597986321159249,0.88613622701319239}} wtTs[4]=0.867316009 {{4.2598003089230945,0.88613607359480184}} wnTs[0]=0.23811 {{0,1}, {1,6}, {2,0}, {5,1}} wnTs[1]=0.860977989 wnTs[2]=0.860978176 wnTs[3]=0.912837717 wnTs[4]=0.912837923
 debugShowCubicLineIntersection wtTs[0]=0.803214143 {{0,2}, {1,5}, {1,0}, {6,1}} {{3.5833594368204942,1}} wnTs[0]=0.283328 {{5,1}, {0,1}}
 debugShowCubicLineIntersection wtTs[0]=0.0764226429 {{0,1}, {1,6}, {2,0}, {5,1}} {{0.23016060940409022,1.9616398984326517}} wtTs[1]=0.691654855 {{2.7367211708698314,1.543879804855028}} wnTs[0]=0.96164 {{6,1}, {0,2}} wnTs[1]=0.543879805
 debugShowLineIntersection no intersect {{6,1}, {0,2}} {{5,1}, {0,1}}
 debugShowCubicIntersection no self intersect {{0,1}, {1,6}, {2,0}, {5,1}}
 debugShowCubicLineIntersection wtTs[0]=0 {{0,1}, {1,6}, {2,0}, {5,1}} {{0,1}} wtTs[1]=0.833333333 {{3.6574074074074132,0.99999999999999789}} wtTs[2]=1 {{5,1}} wnTs[0]=1 {{5,1}, {0,1}} wnTs[1]=0.268518519 wnTs[2]=0
 debugShowActiveSpans id=3 (0,2 1,5 1,0 6,1) t=0 (0,2) tEnd=0.281761651 other=4 otherT=1 otherIndex=4 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (0,2 1,5 1,0 6,1) t=0.281761651 (0.741329789,2.94366908) tEnd=0.633333333 other=1 otherT=0.238109917 otherIndex=2 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (0,2 1,5 1,0 6,1) t=0.633333333 (2.22088885,1.62985182) tEnd=0.803214143 other=4 otherT=0.629851852 otherIndex=2 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (0,2 1,5 1,0 6,1) t=0.803214143 (3.58335948,1) tEnd=0.83051493 other=2 otherT=0.283328113 otherIndex=2 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (0,2 1,5 1,0 6,1) t=0.83051493 (3.85939074,0.940439343) tEnd=0.830515061 other=1 otherT=0.860977989 otherIndex=5 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (0,2 1,5 1,0 6,1) t=0.830515061 (3.85939217,0.940439045) tEnd=0.867315861 other=1 otherT=0.860978176 otherIndex=6 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (0,2 1,5 1,0 6,1) t=0.867315861 (4.25979853,0.886136234) tEnd=0.867316009 other=1 otherT=0.912837717 otherIndex=7 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (0,2 1,5 1,0 6,1) t=0.867316009 (4.25980043,0.886136055) tEnd=1 other=1 otherT=0.912837923 otherIndex=8 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=4 (6,1 0,2) t=0 (6,1) tEnd=0.543879805 other=3 otherT=1 otherIndex=8 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=4 (6,1 0,2) t=0.543879805 (2.73672128,1.54387975) tEnd=0.629851852 other=1 otherT=0.691654855 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=4 (6,1 0,2) t=0.629851852 (2.22088885,1.62985182) tEnd=0.961639898 other=3 otherT=0.633333333 otherIndex=2 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=4 (6,1 0,2) t=0.961639898 (0.230160609,1.96163988) tEnd=1 other=1 otherT=0.0764226429 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,1 1,6 2,0 5,1) t=0 (0,1) tEnd=0.0764226429 other=2 otherT=1 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,1 1,6 2,0 5,1) t=0.0764226429 (0.230160609,1.96163988) tEnd=0.238109917 other=4 otherT=0.961639898 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,1 1,6 2,0 5,1) t=0.238109917 (0.741329789,2.94366908) tEnd=0.691654855 other=3 otherT=0.281761651 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,1 1,6 2,0 5,1) t=0.691654855 (2.73672128,1.54387975) tEnd=0.833333333 other=4 otherT=0.543879805 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,1 1,6 2,0 5,1) t=0.833333333 (3.65740752,1) tEnd=0.860977989 other=2 otherT=0.268518519 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,1 1,6 2,0 5,1) t=0.860977989 (3.85939074,0.940439343) tEnd=0.860978176 other=3 otherT=0.83051493 otherIndex=4 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,1 1,6 2,0 5,1) t=0.860978176 (3.85939217,0.940439045) tEnd=0.912837717 other=3 otherT=0.830515061 otherIndex=5 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,1 1,6 2,0 5,1) t=0.912837717 (4.25979853,0.886136234) tEnd=0.912837923 other=3 otherT=0.867315861 otherIndex=6 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,1 1,6 2,0 5,1) t=0.912837923 (4.25980043,0.886136055) tEnd=1 other=3 otherT=0.867316009 otherIndex=7 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=2 (5,1 0,1) t=0 (5,1) tEnd=0.268518519 other=1 otherT=1 otherIndex=9 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=2 (5,1 0,1) t=0.268518519 (3.65740752,1) tEnd=0.283328113 other=1 otherT=0.833333333 otherIndex=4 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=2 (5,1 0,1) t=0.283328113 (3.58335948,1) tEnd=1 other=3 otherT=0.803214143 otherIndex=3 windSum=? windValue=1 oppValue=0
 findTop debugShowSort contourWinding=0 oppContourWinding=0 sign=1
 debugShowSort [0] {{0,2}, {1,5}, {1,0}, {6,1}} tStart=1 tEnd=0.867316009 sign=1 windValue=1 windSum=? 0->-1 (max=-1) done=0 tiny=0 opp=0
 debugShowSort [1] {{6,1}, {0,2}} tStart=0 tEnd=0.543879805 sign=-1 windValue=1 windSum=? -1->0 (max=-1) done=0 tiny=0 opp=0
 findTop xyE=(6,1) xyS=(4.25980043,0.886136055)
 findTop dxyE=(15,3) dxyS=(11.3363714,-1.03721189) cross=-49.5672913 bumpsUp=true
 markWinding id=3 (0,2 1,5 1,0 6,1) t=0.867316009 [7] (4.25980043,0.886136055) tEnd=1 newWindSum=-1 newOppSum=0 oppSum=? windSum=? windValue=1
 markWinding id=4 (6,1 0,2) t=0 [0] (6,1) tEnd=0.543879805 newWindSum=-1 newOppSum=0 oppSum=? windSum=? windValue=1
 markWinding id=3 (0,2 1,5 1,0 6,1) t=0.867316009 [7] (4.25980043,0.886136055) tEnd=1 newWindSum=-1 newOppSum=0 oppSum=0 windSum=-1 windValue=1
 activeOp op=union miFrom=0 miTo=0 suFrom=1 suTo=0 result=1
 findNextOp simple
 markDoneBinary id=3 (0,2 1,5 1,0 6,1) t=0.867316009 [7] (4.25980043,0.886136055) tEnd=1 newWindSum=-1 newOppSum=0 oppSum=0 windSum=-1 windValue=1
 bridgeOp current id=3 from=(4.25980043,0.886136055) to=(6,1)
 path.moveTo(4.25980043,0.886136055);
 path.cubicTo(4.76118517,0.840262294, 5.33658028,0.867316008, 6,1);
 findNextOp debugShowSort contourWinding=0 oppContourWinding=0 sign=1
 debugShowSort [0] {{6,1}, {0,2}} tStart=0.543879805 tEnd=0 sign=1 windValue=1 windSum=-1 0->-1 (max=-1) done=0 tiny=0 opp=0
 debugShowSort [1] {{0,1}, {1,6}, {2,0}, {5,1}} tStart=0.691654855 tEnd=0.833333333 sign=-1 windValue=1 windSum=? 0->1 (max=1) done=0 tiny=0 opp=1
 debugShowSort [2] {{6,1}, {0,2}} tStart=0.543879805 tEnd=0.629851852 sign=-1 windValue=1 windSum=? -1->0 (max=-1) done=0 tiny=0 opp=0
 debugShowSort [3] {{0,1}, {1,6}, {2,0}, {5,1}} tStart=0.691654855 tEnd=0.238109917 sign=1 windValue=1 windSum=? 1->0 (max=1) done=0 tiny=0 opp=1
 findNextOp firstIndex=[0] sign=1
 activeOp op=union miFrom=0 miTo=1 suFrom=1 suTo=1 result=0
 markDoneBinary id=1 (0,1 1,6 2,0 5,1) t=0.691654855 [3] (2.73672128,1.54387975) tEnd=0.833333333 newWindSum=1 newOppSum=-1 oppSum=? windSum=? windValue=1
 findNextOp chase.append id=1
 activeOp op=union miFrom=1 miTo=1 suFrom=1 suTo=0 result=0
 markDoneBinary id=4 (6,1 0,2) t=0.543879805 [1] (2.73672128,1.54387975) tEnd=0.629851852 newWindSum=-1 newOppSum=1 oppSum=? windSum=? windValue=1
 findNextOp chase.append id=4
 activeOp op=union miFrom=1 miTo=0 suFrom=0 suTo=0 result=1
 markWinding id=1 (0,1 1,6 2,0 5,1) t=0.238109917 [2] (0.741329789,2.94366908) tEnd=0.691654855 newWindSum=1 newOppSum=0 oppSum=? windSum=? windValue=1
 findNextOp chase.append id=1
 markDoneBinary id=4 (6,1 0,2) t=0 [0] (6,1) tEnd=0.543879805 newWindSum=-1 newOppSum=0 oppSum=0 windSum=-1 windValue=1
 findNextOp from:[4] to:[1] start=3 end=2
 bridgeOp current id=4 from=(6,1) to=(2.73672128,1.54387975)
 findNextOp debugShowSort contourWinding=0 oppContourWinding=0 sign=-1
 debugShowSort [3] {{0,1}, {1,6}, {2,0}, {5,1}} tStart=0.238109917 tEnd=0.691654855 sign=-1 windValue=1 windSum=1 0->1 (max=1) done=0 tiny=0 opp=0
 debugShowSort [0] {{0,2}, {1,5}, {1,0}, {6,1}} tStart=0.281761651 tEnd=0.633333333 sign=-1 windValue=1 windSum=? 0->1 (max=1) done=0 tiny=0 opp=1
 debugShowSort [1] {{0,1}, {1,6}, {2,0}, {5,1}} tStart=0.238109917 tEnd=0.0764226429 sign=1 windValue=1 windSum=? 1->0 (max=1) done=0 tiny=0 opp=0
 debugShowSort [2] {{0,2}, {1,5}, {1,0}, {6,1}} tStart=0.281761651 tEnd=0 sign=1 windValue=1 windSum=? 1->0 (max=1) done=0 tiny=0 opp=1
 findNextOp firstIndex=[3] sign=-1
 activeOp op=union miFrom=1 miTo=1 suFrom=0 suTo=1 result=0
 markDoneBinary id=3 (0,2 1,5 1,0 6,1) t=0.281761651 [1] (0.741329789,2.94366908) tEnd=0.633333333 newWindSum=1 newOppSum=1 oppSum=? windSum=? windValue=1
 findNextOp chase.append id=3
 activeOp op=union miFrom=1 miTo=0 suFrom=1 suTo=1 result=0
 markDoneBinary id=1 (0,1 1,6 2,0 5,1) t=0.0764226429 [1] (0.230160609,1.96163988) tEnd=0.238109917 newWindSum=1 newOppSum=1 oppSum=? windSum=? windValue=1
 findNextOp chase.append id=1
 activeOp op=union miFrom=0 miTo=0 suFrom=1 suTo=0 result=1
 markWinding id=3 (0,2 1,5 1,0 6,1) t=0 [0] (0,2) tEnd=0.281761651 newWindSum=1 newOppSum=0 oppSum=? windSum=? windValue=1
 markWinding id=4 (6,1 0,2) t=0.961639898 [3] (0.230160609,1.96163988) tEnd=1 newWindSum=1 newOppSum=0 oppSum=? windSum=? windValue=1
 findNextOp chase.append id=4
 markDoneBinary id=1 (0,1 1,6 2,0 5,1) t=0.238109917 [2] (0.741329789,2.94366908) tEnd=0.691654855 newWindSum=1 newOppSum=0 oppSum=0 windSum=1 windValue=1
 findNextOp from:[1] to:[3] start=1 end=0
 bridgeOp current id=1 from=(2.73672128,1.54387975) to=(0.741329789,2.94366908)
 path.lineTo(2.73672128,1.54387975);
 path.cubicTo(1.84923673,2.27202392, 1.2463032,3.29839373, 0.741329789,2.94366908);
 findNextOp simple
 markDoneBinary id=3 (0,2 1,5 1,0 6,1) t=0 [0] (0,2) tEnd=0.281761651 newWindSum=1 newOppSum=0 oppSum=0 windSum=1 windValue=1
 bridgeOp current id=3 from=(0.741329789,2.94366908) to=(0,2)
 path.cubicTo(0.484133661,3.05545282, 0.281761646,2.84528494, 0,2);
 findNextOp debugShowSort contourWinding=0 oppContourWinding=0 sign=-1
 debugShowSort [2] {{6,1}, {0,2}} tStart=0.961639898 tEnd=1 sign=-1 windValue=1 windSum=1 0->1 (max=1) done=0 tiny=0 opp=0
 debugShowSort [3] {{0,1}, {1,6}, {2,0}, {5,1}} tStart=0.0764226429 tEnd=0.238109917 sign=-1 windValue=1 windSum=1 0->1 (max=1) done=1 tiny=0 opp=1
 debugShowSort [0] {{6,1}, {0,2}} tStart=0.961639898 tEnd=0.629851852 sign=1 windValue=1 windSum=? 1->0 (max=1) done=0 tiny=0 opp=0
 debugShowSort [1] {{0,1}, {1,6}, {2,0}, {5,1}} tStart=0.0764226429 tEnd=0 sign=1 windValue=1 windSum=? 1->0 (max=1) done=0 tiny=0 opp=1
 findNextOp firstIndex=[2] sign=-1
 activeOp op=union miFrom=0 miTo=1 suFrom=1 suTo=1 result=0
 activeOp op=union miFrom=1 miTo=1 suFrom=1 suTo=0 result=0
 markDoneBinary id=4 (6,1 0,2) t=0.629851852 [2] (2.22088885,1.62985182) tEnd=0.961639898 newWindSum=1 newOppSum=1 oppSum=? windSum=? windValue=1
 findNextOp chase.append id=4
 activeOp op=union miFrom=1 miTo=0 suFrom=0 suTo=0 result=1
 markWinding id=1 (0,1 1,6 2,0 5,1) t=0 [0] (0,1) tEnd=0.0764226429 newWindSum=1 newOppSum=0 oppSum=? windSum=? windValue=1
 markWinding id=2 (5,1 0,1) t=0.283328113 [2] (3.58335948,1) tEnd=1 newWindSum=1 newOppSum=0 oppSum=? windSum=? windValue=1
 findNextOp chase.append id=2
 markDoneBinary id=4 (6,1 0,2) t=0.961639898 [3] (0.230160609,1.96163988) tEnd=1 newWindSum=1 newOppSum=0 oppSum=0 windSum=1 windValue=1
 findNextOp from:[4] to:[1] start=1 end=0
 bridgeOp current id=4 from=(0,2) to=(0.230160609,1.96163988)
 findNextOp simple
 markDoneBinary id=1 (0,1 1,6 2,0 5,1) t=0 [0] (0,1) tEnd=0.0764226429 newWindSum=1 newOppSum=0 oppSum=0 windSum=1 windValue=1
 bridgeOp current id=1 from=(0.230160609,1.96163988) to=(0,1)
 path.lineTo(0.230160609,1.96163988);
 path.cubicTo(0.152845293,1.69998181, 0.0764226392,1.38211322, 0,1);
 findNextOp debugShowSort contourWinding=0 oppContourWinding=0 sign=-1
 debugShowSort [1] {{5,1}, {0,1}} tStart=0.283328113 tEnd=1 sign=-1 windValue=1 windSum=1 0->1 (max=1) done=0 tiny=0 opp=0
 debugShowSort [2] {{0,2}, {1,5}, {1,0}, {6,1}} tStart=0.803214143 tEnd=0.633333333 sign=1 windValue=1 windSum=? 0->-1 (max=-1) done=0 tiny=0 opp=1
 debugShowSort [3] {{5,1}, {0,1}} tStart=0.283328113 tEnd=0.268518519 sign=1 windValue=1 windSum=? 1->0 (max=1) done=0 tiny=0 opp=0
 debugShowSort [0] {{0,2}, {1,5}, {1,0}, {6,1}} tStart=0.803214143 tEnd=0.83051493 sign=-1 windValue=1 windSum=? -1->0 (max=-1) done=0 tiny=0 opp=1
 findNextOp firstIndex=[1] sign=-1
 activeOp op=union miFrom=1 miTo=1 suFrom=0 suTo=1 result=0
 markDoneBinary id=3 (0,2 1,5 1,0 6,1) t=0.633333333 [2] (2.22088885,1.62985182) tEnd=0.803214143 newWindSum=-1 newOppSum=1 oppSum=? windSum=? windValue=1
 findNextOp chase.append id=3
 activeOp op=union miFrom=1 miTo=0 suFrom=1 suTo=1 result=0
 markDoneBinary id=2 (5,1 0,1) t=0.268518519 [1] (3.65740752,1) tEnd=0.283328113 newWindSum=1 newOppSum=-1 oppSum=? windSum=? windValue=1
 findNextOp chase.append id=2
 activeOp op=union miFrom=0 miTo=0 suFrom=1 suTo=0 result=1
 markWinding id=3 (0,2 1,5 1,0 6,1) t=0.803214143 [3] (3.58335948,1) tEnd=0.83051493 newWindSum=-1 newOppSum=0 oppSum=? windSum=? windValue=1
 findNextOp chase.append id=3
 markDoneBinary id=2 (5,1 0,1) t=0.283328113 [2] (3.58335948,1) tEnd=1 newWindSum=1 newOppSum=0 oppSum=0 windSum=1 windValue=1
 findNextOp from:[2] to:[3] start=3 end=4
 bridgeOp current id=2 from=(0,1) to=(3.58335948,1)
 findNextOp debugShowSort contourWinding=0 oppContourWinding=0 sign=1
 debugShowSort [0] {{0,2}, {1,5}, {1,0}, {6,1}} tStart=0.83051493 tEnd=0.803214143 sign=1 windValue=1 windSum=-1 0->-1 (max=-1) done=0 tiny=0 opp=0
 debugShowSort [1] {{0,1}, {1,6}, {2,0}, {5,1}} tStart=0.860977989 tEnd=0.833333333 sign=1 windValue=1 windSum=? 0->-1 (max=-1) done=0 tiny=0 opp=1
 debugShowSort [2] {{0,1}, {1,6}, {2,0}, {5,1}} tStart=0.860977989 tEnd=0.860978176 sign=-1 windValue=1 windSum=? -1->0 (max=-1) done=0 tiny=0 opp=1
 debugShowSort [3] {{0,2}, {1,5}, {1,0}, {6,1}} tStart=0.83051493 tEnd=0.830515061 sign=-1 windValue=1 windSum=? -1->0 (max=-1) done=0 tiny=0 opp=0
 findNextOp firstIndex=[0] sign=1
 activeOp op=union miFrom=0 miTo=1 suFrom=1 suTo=1 result=0
 markDoneBinary id=1 (0,1 1,6 2,0 5,1) t=0.833333333 [4] (3.65740752,1) tEnd=0.860977989 newWindSum=-1 newOppSum=-1 oppSum=? windSum=? windValue=1
 findNextOp chase.append id=1
 activeOp op=union miFrom=1 miTo=0 suFrom=1 suTo=1 result=0
 markDoneBinary id=1 (0,1 1,6 2,0 5,1) t=0.860977989 [5] (3.85939074,0.940439343) tEnd=0.860978176 newWindSum=-1 newOppSum=-1 oppSum=? windSum=? windValue=1
 findNextOp chase.append id=1
 activeOp op=union miFrom=0 miTo=0 suFrom=1 suTo=0 result=1
 markWinding id=3 (0,2 1,5 1,0 6,1) t=0.83051493 [4] (3.85939074,0.940439343) tEnd=0.830515061 newWindSum=-1 newOppSum=0 oppSum=? windSum=? windValue=1
 findNextOp chase.append id=3
 markDoneBinary id=3 (0,2 1,5 1,0 6,1) t=0.803214143 [3] (3.58335948,1) tEnd=0.83051493 newWindSum=-1 newOppSum=0 oppSum=0 windSum=-1 windValue=1
 findNextOp from:[3] to:[3] start=4 end=5
 bridgeOp current id=3 from=(3.58335948,1) to=(3.85939074,0.940439343)
 path.lineTo(3.58335948,1);
 path.cubicTo(3.67248249,0.97763288, 3.76445246,0.957684338, 3.85939074,0.940439343);
 findNextOp debugShowSort contourWinding=0 oppContourWinding=0 sign=1
 debugShowSort [2] {{0,2}, {1,5}, {1,0}, {6,1}} tStart=0.830515061 tEnd=0.83051493 sign=1 windValue=1 windSum=-1 0->-1 (max=-1) done=0 tiny=0 opp=0
 debugShowSort [3] {{0,1}, {1,6}, {2,0}, {5,1}} tStart=0.860978176 tEnd=0.860977989 sign=1 windValue=1 windSum=-1 0->-1 (max=-1) done=1 tiny=0 opp=1
 debugShowSort [0] {{0,2}, {1,5}, {1,0}, {6,1}} tStart=0.830515061 tEnd=0.867315861 sign=-1 windValue=1 windSum=? -1->0 (max=-1) done=0 tiny=0 opp=0
 debugShowSort [1] {{0,1}, {1,6}, {2,0}, {5,1}} tStart=0.860978176 tEnd=0.912837717 sign=-1 windValue=1 windSum=? -1->0 (max=-1) done=0 tiny=0 opp=1
 findNextOp firstIndex=[2] sign=1
 activeOp op=union miFrom=0 miTo=1 suFrom=1 suTo=1 result=0
 activeOp op=union miFrom=1 miTo=1 suFrom=1 suTo=0 result=0
 markDoneBinary id=3 (0,2 1,5 1,0 6,1) t=0.830515061 [5] (3.85939217,0.940439045) tEnd=0.867315861 newWindSum=-1 newOppSum=-1 oppSum=? windSum=? windValue=1
 findNextOp chase.append id=3
 activeOp op=union miFrom=1 miTo=0 suFrom=0 suTo=0 result=1
 markWinding id=1 (0,1 1,6 2,0 5,1) t=0.860978176 [6] (3.85939217,0.940439045) tEnd=0.912837717 newWindSum=-1 newOppSum=0 oppSum=? windSum=? windValue=1
 findNextOp chase.append id=1
 markDoneBinary id=3 (0,2 1,5 1,0 6,1) t=0.83051493 [4] (3.85939074,0.940439343) tEnd=0.830515061 newWindSum=-1 newOppSum=0 oppSum=0 windSum=-1 windValue=1
 findNextOp from:[3] to:[1] start=6 end=7
 bridgeOp current id=3 from=(3.85939074,0.940439343) to=(3.85939217,0.940439045)
 path.cubicTo(3.85939145,0.940439224, 3.85939169,0.940439165, 3.85939217,0.940439045);
 findNextOp debugShowSort contourWinding=0 oppContourWinding=0 sign=1
 debugShowSort [0] {{0,1}, {1,6}, {2,0}, {5,1}} tStart=0.912837717 tEnd=0.860978176 sign=1 windValue=1 windSum=-1 0->-1 (max=-1) done=0 tiny=0 opp=0
 debugShowSort [1] {{0,2}, {1,5}, {1,0}, {6,1}} tStart=0.867315861 tEnd=0.830515061 sign=1 windValue=1 windSum=-1 0->-1 (max=-1) done=1 tiny=0 opp=1
 debugShowSort [2] {{0,1}, {1,6}, {2,0}, {5,1}} tStart=0.912837717 tEnd=0.912837923 sign=-1 windValue=1 windSum=? -1->0 (max=-1) done=0 tiny=0 opp=0
 debugShowSort [3] {{0,2}, {1,5}, {1,0}, {6,1}} tStart=0.867315861 tEnd=0.867316009 sign=-1 windValue=1 windSum=? -1->0 (max=-1) done=0 tiny=0 opp=1
 findNextOp firstIndex=[0] sign=1
 activeOp op=union miFrom=1 miTo=1 suFrom=0 suTo=1 result=0
 activeOp op=union miFrom=1 miTo=0 suFrom=1 suTo=1 result=0
 markDoneBinary id=1 (0,1 1,6 2,0 5,1) t=0.912837717 [7] (4.25979853,0.886136234) tEnd=0.912837923 newWindSum=-1 newOppSum=-1 oppSum=? windSum=? windValue=1
 findNextOp chase.append id=1
 activeOp op=union miFrom=0 miTo=0 suFrom=1 suTo=0 result=1
 markWinding id=3 (0,2 1,5 1,0 6,1) t=0.867315861 [6] (4.25979853,0.886136234) tEnd=0.867316009 newWindSum=-1 newOppSum=0 oppSum=? windSum=? windValue=1
 findNextOp chase.append id=3
 markDoneBinary id=1 (0,1 1,6 2,0 5,1) t=0.860978176 [6] (3.85939217,0.940439045) tEnd=0.912837717 newWindSum=-1 newOppSum=0 oppSum=0 windSum=-1 windValue=1
 findNextOp from:[1] to:[3] start=6 end=7
 bridgeOp current id=1 from=(3.85939217,0.940439045) to=(4.25979853,0.886136234)
 path.cubicTo(3.98813701,0.909405351, 4.12151289,0.890467525, 4.25980043,0.886136055);
 path.close();
 debugShowActiveSpans id=3 (0,2 1,5 1,0 6,1) t=0.867315861 (4.25979853,0.886136234) tEnd=0.867316009 other=1 otherT=0.912837717 otherIndex=7 windSum=-1 windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,1 1,6 2,0 5,1) t=0.912837923 (4.25980043,0.886136055) tEnd=1 other=3 otherT=0.867316009 otherIndex=7 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=2 (5,1 0,1) t=0 (5,1) tEnd=0.268518519 other=1 otherT=1 otherIndex=9 windSum=? windValue=1 oppValue=0
 activeOp op=union miFrom=0 miTo=0 suFrom=0 suTo=1 result=1
 findNextOp debugShowSort contourWinding=-1 oppContourWinding=0 sign=-1
 debugShowSort [3] {{0,2}, {1,5}, {1,0}, {6,1}} tStart=0.867315861 tEnd=0.867316009 sign=-1 windValue=1 windSum=-1 -1->0 (max=-1) done=0 tiny=0 opp=0
 debugShowSort [0] {{0,1}, {1,6}, {2,0}, {5,1}} tStart=0.912837717 tEnd=0.860978176 sign=1 windValue=1 windSum=-1 0->-1 (max=-1) done=1 tiny=0 opp=1
 debugShowSort [1] {{0,2}, {1,5}, {1,0}, {6,1}} tStart=0.867315861 tEnd=0.830515061 sign=1 windValue=1 windSum=-1 0->-1 (max=-1) done=1 tiny=0 opp=0
 debugShowSort [2] {{0,1}, {1,6}, {2,0}, {5,1}} tStart=0.912837717 tEnd=0.912837923 sign=-1 windValue=1 windSum=-1 -1->0 (max=-1) done=1 tiny=0 opp=1
 findNextOp firstIndex=[3] sign=-1
 activeOp op=union miFrom=0 miTo=1 suFrom=0 suTo=0 result=1
 activeOp op=union miFrom=1 miTo=1 suFrom=0 suTo=1 result=0
 activeOp op=union miFrom=1 miTo=0 suFrom=1 suTo=1 result=0
 markDoneBinary id=3 (0,2 1,5 1,0 6,1) t=0.867315861 [6] (4.25979853,0.886136234) tEnd=0.867316009 newWindSum=-1 newOppSum=0 oppSum=0 windSum=-1 windValue=1
 findNextOp from:[3] to:[1] start=7 end=6
 bridgeOp current id=3 from=(4.25980043,0.886136055) to=(4.25979853,0.886136234)
 path.moveTo(4.25980043,0.886136055);
 path.cubicTo(4.25979948,0.886136115, 4.25979948,0.886136174, 4.25979853,0.886136234);
 findNextOp debugShowSort contourWinding=-1 oppContourWinding=0 sign=-1
 debugShowSort [1] {{0,1}, {1,6}, {2,0}, {5,1}} tStart=0.860978176 tEnd=0.912837717 sign=-1 windValue=1 windSum=-1 -1->0 (max=-1) done=1 tiny=0 opp=0
 debugShowSort [2] {{0,2}, {1,5}, {1,0}, {6,1}} tStart=0.830515061 tEnd=0.83051493 sign=1 windValue=1 windSum=-1 0->-1 (max=-1) done=1 tiny=0 opp=1
 debugShowSort [3] {{0,1}, {1,6}, {2,0}, {5,1}} tStart=0.860978176 tEnd=0.860977989 sign=1 windValue=1 windSum=-1 0->-1 (max=-1) done=1 tiny=0 opp=0
 debugShowSort [0] {{0,2}, {1,5}, {1,0}, {6,1}} tStart=0.830515061 tEnd=0.867315861 sign=-1 windValue=1 windSum=-1 -1->0 (max=-1) done=1 tiny=0 opp=1
 findNextOp firstIndex=[1] sign=-1
 activeOp op=union miFrom=0 miTo=0 suFrom=0 suTo=1 result=1
 activeOp op=union miFrom=0 miTo=1 suFrom=1 suTo=1 result=0
 activeOp op=union miFrom=1 miTo=1 suFrom=1 suTo=0 result=0
 findNextOp from:[1] to:[3] start=5 end=4
 bridgeOp current id=1 from=(4.25979853,0.886136234) to=(3.85939217,0.940439045)
 path.cubicTo(4.12151289,0.890467525, 3.98813701,0.909405351, 3.85939217,0.940439045);
 debugShowActiveSpans id=1 (0,1 1,6 2,0 5,1) t=0.912837923 (4.25980043,0.886136055) tEnd=1 other=3 otherT=0.867316009 otherIndex=7 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=2 (5,1 0,1) t=0 (5,1) tEnd=0.268518519 other=1 otherT=1 otherIndex=9 windSum=? windValue=1 oppValue=0
 </div>

 <div id="cubicOp35da">
 {{x = 0.44618727783085621, y = 2.2840286415243063}, {x = 0.51170845243761109, y = 2.4044088819954914}, {x = 0.57783675570457882, y = 2.4985733182515446}, {x = 0.64483584772311509, y = 2.5694222112973661}}
 {{x = 0.64244110111854291, y = 2.5673840215265367}, {x = 0.63479413812245555, y = 2.5620057200094775}, {x = 0.64115438240274059, y = 2.533597555954064}, {x = 0.6620248993310307, y = 2.4876932484482714}}
 </div>

 <div id="cubicOp38d">
   SimplifyNew_Test [cubicOp38d]
 {{0,1}, {0,6}, {3,2}, {4,1}},
 {{4,1}, {0,1}},
 op difference
 {{2,3}, {1,4}, {1,0}, {6,0}},
 {{6,0}, {2,3}},
 debugShowCubicIntersection no self intersect {{2,3}, {1,4}, {1,0}, {6,0}}
 debugShowCubicLineIntersection wtTs[0]=0 {{2,3}, {1,4}, {1,0}, {6,0}} {{2,3}} wtTs[1]=1 {{6,0}} wnTs[0]=1 {{6,0}, {2,3}} wnTs[1]=0
 debugShowCubicIntersection no intersect {{2,3}, {1,4}, {1,0}, {6,0}} {{0,1}, {0,6}, {3,2}, {4,1}}
 debugShowCubicLineIntersection wtTs[0]=0.666666667 {{2,3}, {1,4}, {1,0}, {6,0}} {{2.518518518518519,0.99999999999999967}} wnTs[0]=0.37037 {{4,1}, {0,1}}
 debugShowCubicLineIntersection no intersect {{0,1}, {0,6}, {3,2}, {4,1}} {{6,0}, {2,3}}
 debugShowLineIntersection no intersect {{6,0}, {2,3}} {{4,1}, {0,1}}
 debugShowCubicIntersection no self intersect {{0,1}, {0,6}, {3,2}, {4,1}}
 debugShowCubicLineIntersection wtTs[0]=0 {{0,1}, {0,6}, {3,2}, {4,1}} {{0,1}} wtTs[1]=1 {{4,1}} wnTs[0]=1 {{4,1}, {0,1}} wnTs[1]=0
 debugShowActiveSpans id=3 (2,3 1,4 1,0 6,0) t=0 (2,3) tEnd=0.666666667 other=4 otherT=1 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (2,3 1,4 1,0 6,0) t=0.666666667 (2.51851845,1) tEnd=1 other=2 otherT=0.37037037 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=4 (6,0 2,3) t=0 (6,0) tEnd=1 other=3 otherT=1 otherIndex=2 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,1 0,6 3,2 4,1) t=0 (0,1) tEnd=1 other=2 otherT=1 otherIndex=2 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=2 (4,1 0,1) t=0 (4,1) tEnd=0.37037037 other=1 otherT=1 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=2 (4,1 0,1) t=0.37037037 (2.51851845,1) tEnd=1 other=3 otherT=0.666666667 otherIndex=1 windSum=? windValue=1 oppValue=0
 findTop debugShowSort contourWinding=0 oppContourWinding=0 sign=1
 debugShowSort [0] {{2,3}, {1,4}, {1,0}, {6,0}} tStart=1 tEnd=0.666666667 sign=1 windValue=1 windSum=? 0->-1 (max=-1) done=0 tiny=0 opp=0
 debugShowSort [1] {{6,0}, {2,3}} tStart=0 tEnd=1 sign=-1 windValue=1 windSum=? -1->0 (max=-1) done=0 tiny=0 opp=0
 findTop xyE=(6,0) xyS=(2.51851845,1)
 findTop dxyE=(15,0) dxyS=(6.33333349,-5) cross=-75 bumpsUp=false
 markWinding id=3 (2,3 1,4 1,0 6,0) t=0.666666667 [1] (2.51851845,1) tEnd=1 newWindSum=-1 newOppSum=0 oppSum=? windSum=? windValue=1
 markWinding id=4 (6,0 2,3) t=0 [0] (6,0) tEnd=1 newWindSum=-1 newOppSum=0 oppSum=? windSum=? windValue=1
 markWinding id=3 (2,3 1,4 1,0 6,0) t=0 [0] (2,3) tEnd=0.666666667 newWindSum=-1 newOppSum=0 oppSum=? windSum=? windValue=1
 markWinding id=3 (2,3 1,4 1,0 6,0) t=0.666666667 [1] (2.51851845,1) tEnd=1 newWindSum=-1 newOppSum=0 oppSum=0 windSum=-1 windValue=1
 activeOp op=diff miFrom=0 miTo=0 suFrom=1 suTo=0 result=0
 markDoneBinary id=3 (2,3 1,4 1,0 6,0) t=0.666666667 [1] (2.51851845,1) tEnd=1 newWindSum=-1 newOppSum=0 oppSum=0 windSum=-1 windValue=1
 markDoneBinary id=4 (6,0 2,3) t=0 [0] (6,0) tEnd=1 newWindSum=-1 newOppSum=0 oppSum=0 windSum=-1 windValue=1
 markDoneBinary id=3 (2,3 1,4 1,0 6,0) t=0 [0] (2,3) tEnd=0.666666667 newWindSum=-1 newOppSum=0 oppSum=0 windSum=-1 windValue=1
 findChaseOp debugShowSort contourWinding=-1 oppContourWinding=0 sign=-1
 debugShowSort [0] {{2,3}, {1,4}, {1,0}, {6,0}} tStart=0.666666667 tEnd=1 sign=-1 windValue=1 windSum=-1 -1->0 (max=-1) done=1 tiny=0 opp=0
 debugShowSort [1] {{4,1}, {0,1}} tStart=0.37037037 tEnd=1 sign=-1 windValue=1 windSum=? 0->1 (max=1) done=0 tiny=0 opp=1
 debugShowSort [2] {{2,3}, {1,4}, {1,0}, {6,0}} tStart=0.666666667 tEnd=0 sign=1 windValue=1 windSum=-1 0->-1 (max=-1) done=1 tiny=0 opp=0
 debugShowSort [3] {{4,1}, {0,1}} tStart=0.37037037 tEnd=0 sign=1 windValue=1 windSum=? 1->0 (max=1) done=0 tiny=0 opp=1
 findChaseOp debugShowSort contourWinding=-1 oppContourWinding=0 sign=-1
 debugShowSort [0] {{2,3}, {1,4}, {1,0}, {6,0}} tStart=0.666666667 tEnd=1 sign=-1 windValue=1 windSum=-1 -1->0 (max=-1) done=1 tiny=0 opp=0
 debugShowSort [1] {{4,1}, {0,1}} tStart=0.37037037 tEnd=1 sign=-1 windValue=1 windSum=? 0->1 (max=1) done=0 tiny=0 opp=1
 debugShowSort [2] {{2,3}, {1,4}, {1,0}, {6,0}} tStart=0.666666667 tEnd=0 sign=1 windValue=1 windSum=-1 0->-1 (max=-1) done=1 tiny=0 opp=0
 debugShowSort [3] {{4,1}, {0,1}} tStart=0.37037037 tEnd=0 sign=1 windValue=1 windSum=? 1->0 (max=1) done=0 tiny=0 opp=1
 markWinding id=2 (4,1 0,1) t=0.37037037 [1] (2.51851845,1) tEnd=1 newWindSum=1 newOppSum=0 oppSum=? windSum=? windValue=1
 markWinding id=1 (0,1 0,6 3,2 4,1) t=0 [0] (0,1) tEnd=1 newWindSum=1 newOppSum=0 oppSum=? windSum=? windValue=1
 markWinding id=2 (4,1 0,1) t=0 [0] (4,1) tEnd=0.37037037 newWindSum=1 newOppSum=0 oppSum=? windSum=? windValue=1
 markWinding id=2 (4,1 0,1) t=0 [0] (4,1) tEnd=0.37037037 newWindSum=1 newOppSum=-1 oppSum=0 windSum=1 windValue=1
 </div>

 <div id="cubicOp38da">
   {{0,1}, {0,6}, {3,2}, {4,1}},
   {{2,3}, {1,4}, {1,0}, {6,0}},
 computed quadratics set 2
   {{2,3}, {1.46296296,3.41666667}, {1.48148148,2.66666667}},
   {{1.48148148,2.66666667}, {1.5,1.91666667}, {2.51851852,1}},
   {{2.51851852,1}, {3.53703704,0.0833333333}, {6,0}},
 computed quadratics set 1
   {{0,1}, {0.0311951689,3.11686153}, {0.643808143,3.37716704}},
   {{0.643808143,3.37716704}, {1.25642112,3.63747255}, {2.07610987,2.9396429}},
   {{2.07610987,2.9396429}, {2.89579862,2.24181325}, {3.54822112,1.48426931}},
   {{3.54822112,1.48426931}, {3.81269436,1.19058669}, {4,1}},
 </div>

 <div id="cubicOp39d">
   SimplifyNew_Test [cubicOp39d]
 {{0,1}, {2,3}, {5,1}, {4,3}},
 {{4,3}, {0,1}},
 op difference
 {{1,5}, {3,4}, {1,0}, {3,2}},
 {{3,2}, {1,5}},
 debugShowCubicIntersection no self intersect {{0,1}, {2,3}, {5,1}, {4,3}}
 debugShowCubicLineIntersection wtTs[0]=0 {{0,1}, {2,3}, {5,1}, {4,3}} {{0,1}} wtTs[1]=0.285714286 {{1.8425655976676385,1.9212827988338192}} wtTs[2]=1 {{4,3}} wnTs[0]=1 {{4,3}, {0,1}} wnTs[1]=0.539358601 wnTs[2]=0
 debugShowCubicIntersection wtTs[0]=0.311007457 {{0,1}, {2,3}, {5,1}, {4,3}} {{2.005809685956442,1.9459962410665144}} wnTs[0]=0.589885 {{1,5}, {3,4}, {1,0}, {3,2}}
 debugShowCubicLineIntersection no intersect {{0,1}, {2,3}, {5,1}, {4,3}} {{3,2}, {1,5}}
 debugShowCubicLineIntersection wtTs[0]=0.576935809 {{1,5}, {3,4}, {1,0}, {3,2}} {{2.0036431374219883,2.0018215687109939}} wnTs[0]=0.499089 {{4,3}, {0,1}}
 debugShowLineIntersection wtTs[0]=0.3125 {{4,3}, {0,1}} {{2.75,2.375}} wnTs[0]=0.125 {{3,2}, {1,5}}
 debugShowCubicIntersection no self intersect {{1,5}, {3,4}, {1,0}, {3,2}}
 debugShowCubicLineIntersection wtTs[0]=0 {{1,5}, {3,4}, {1,0}, {3,2}} {{1,5}} wtTs[1]=0.285714286 {{1.9212827988338184,3.6180758017492725}} wtTs[2]=1 {{3,2}} wnTs[0]=1 {{3,2}, {1,5}} wnTs[1]=0.539358601 wnTs[2]=0
 debugShowActiveSpans id=1 (0,1 2,3 5,1 4,3) t=0 (0,1) tEnd=0.285714286 other=2 otherT=1 otherIndex=4 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,1 2,3 5,1 4,3) t=0.285714286 (1.84256566,1.92128277) tEnd=0.311007457 other=2 otherT=0.539358601 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,1 2,3 5,1 4,3) t=0.311007457 (2.00580978,1.94599628) tEnd=1 other=3 otherT=0.589885081 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=2 (4,3 0,1) t=0 (4,3) tEnd=0.3125 other=1 otherT=1 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=2 (4,3 0,1) t=0.3125 (2.75,2.375) tEnd=0.499089216 other=4 otherT=0.125 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=2 (4,3 0,1) t=0.499089216 (2.00364304,2.00182152) tEnd=0.539358601 other=3 otherT=0.576935809 otherIndex=2 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=2 (4,3 0,1) t=0.539358601 (1.84256566,1.92128277) tEnd=1 other=1 otherT=0.285714286 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (1,5 3,4 1,0 3,2) t=0 (1,5) tEnd=0.285714286 other=4 otherT=1 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (1,5 3,4 1,0 3,2) t=0.285714286 (1.92128277,3.61807585) tEnd=0.576935809 other=4 otherT=0.539358601 otherIndex=2 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (1,5 3,4 1,0 3,2) t=0.576935809 (2.00364304,2.00182152) tEnd=0.589885081 other=2 otherT=0.499089216 otherIndex=2 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (1,5 3,4 1,0 3,2) t=0.589885081 (2.00580978,1.94599628) tEnd=1 other=1 otherT=0.311007457 otherIndex=2 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=4 (3,2 1,5) t=0 (3,2) tEnd=0.125 other=3 otherT=1 otherIndex=4 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=4 (3,2 1,5) t=0.125 (2.75,2.375) tEnd=0.539358601 other=2 otherT=0.3125 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=4 (3,2 1,5) t=0.539358601 (1.92128277,3.61807585) tEnd=1 other=3 otherT=0.285714286 otherIndex=1 windSum=? windValue=1 oppValue=0
 findTop debugShowSort contourWinding=0 oppContourWinding=0 sign=-1
 debugShowSort [0] {{0,1}, {2,3}, {5,1}, {4,3}} tStart=0 tEnd=0.285714286 sign=-1 windValue=1 windSum=? 0->1 (max=1) done=0 tiny=0 opp=0
 debugShowSort [1] {{4,3}, {0,1}} tStart=1 tEnd=0.539358601 sign=1 windValue=1 windSum=? 1->0 (max=1) done=0 tiny=0 opp=0
 findTop xyE=(0,1) xyS=(1.84256566,1.92128277)
 findTop dxyE=(6,6) dxyS=(6.48979568,1.10204077) cross=-32.3265305 bumpsUp=false
 markWinding id=1 (0,1 2,3 5,1 4,3) t=0 [0] (0,1) tEnd=0.285714286 newWindSum=1 newOppSum=0 oppSum=? windSum=? windValue=1
 markWinding id=2 (4,3 0,1) t=0.539358601 [3] (1.84256566,1.92128277) tEnd=1 newWindSum=1 newOppSum=0 oppSum=? windSum=? windValue=1
 markWinding id=1 (0,1 2,3 5,1 4,3) t=0 [0] (0,1) tEnd=0.285714286 newWindSum=1 newOppSum=0 oppSum=0 windSum=1 windValue=1
 activeOp op=diff miFrom=1 miTo=0 suFrom=0 suTo=0 result=1
 findNextOp simple
 markDoneBinary id=1 (0,1 2,3 5,1 4,3) t=0 [0] (0,1) tEnd=0.285714286 newWindSum=1 newOppSum=0 oppSum=0 windSum=1 windValue=1
 bridgeOp current id=1 from=(1.84256566,1.92128277) to=(0,1)
 path.moveTo(1.84256566,1.92128277);
 path.cubicTo(1.22448969,1.8163265, 0.571428597,1.57142854, 0,1);
 findNextOp debugShowSort contourWinding=0 oppContourWinding=0 sign=-1
 debugShowSort [0] {{4,3}, {0,1}} tStart=0.539358601 tEnd=1 sign=-1 windValue=1 windSum=1 0->1 (max=1) done=0 tiny=0 opp=0
 debugShowSort [1] {{0,1}, {2,3}, {5,1}, {4,3}} tStart=0.285714286 tEnd=0 sign=1 windValue=1 windSum=1 1->0 (max=1) done=1 tiny=0 opp=0
 debugShowSort [2] {{4,3}, {0,1}} tStart=0.539358601 tEnd=0.499089216 sign=1 windValue=1 windSum=? 0->-1 (max=-1) done=0 tiny=0 opp=0
 debugShowSort [3] {{0,1}, {2,3}, {5,1}, {4,3}} tStart=0.285714286 tEnd=0.311007457 sign=-1 windValue=1 windSum=? -1->0 (max=-1) done=0 tiny=0 opp=0
 findNextOp firstIndex=[0] sign=-1
 activeOp op=diff miFrom=1 miTo=0 suFrom=0 suTo=0 result=1
 activeOp op=diff miFrom=0 miTo=1 suFrom=0 suTo=0 result=1
 markWinding id=2 (4,3 0,1) t=0.499089216 [2] (2.00364304,2.00182152) tEnd=0.539358601 newWindSum=-1 newOppSum=0 oppSum=? windSum=? windValue=1
 findNextOp chase.append id=2
 activeOp op=diff miFrom=1 miTo=0 suFrom=0 suTo=0 result=1
 markWinding id=1 (0,1 2,3 5,1 4,3) t=0.285714286 [1] (1.84256566,1.92128277) tEnd=0.311007457 newWindSum=-1 newOppSum=0 oppSum=? windSum=? windValue=1
 findNextOp chase.append id=1
 markDoneBinary id=2 (4,3 0,1) t=0.539358601 [3] (1.84256566,1.92128277) tEnd=1 newWindSum=1 newOppSum=0 oppSum=0 windSum=1 windValue=1
 findNextOp from:[2] to:[1] start=1 end=2
 bridgeOp current id=2 from=(0,1) to=(1.84256566,1.92128277)
 path.lineTo(1.84256566,1.92128277);
 path.close();
 debugShowActiveSpans id=1 (0,1 2,3 5,1 4,3) t=0.285714286 (1.84256566,1.92128277) tEnd=0.311007457 other=2 otherT=0.539358601 otherIndex=3 windSum=-1 windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,1 2,3 5,1 4,3) t=0.311007457 (2.00580978,1.94599628) tEnd=1 other=3 otherT=0.589885081 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=2 (4,3 0,1) t=0 (4,3) tEnd=0.3125 other=1 otherT=1 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=2 (4,3 0,1) t=0.3125 (2.75,2.375) tEnd=0.499089216 other=4 otherT=0.125 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=2 (4,3 0,1) t=0.499089216 (2.00364304,2.00182152) tEnd=0.539358601 other=3 otherT=0.576935809 otherIndex=2 windSum=-1 windValue=1 oppValue=0
 debugShowActiveSpans id=3 (1,5 3,4 1,0 3,2) t=0 (1,5) tEnd=0.285714286 other=4 otherT=1 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (1,5 3,4 1,0 3,2) t=0.285714286 (1.92128277,3.61807585) tEnd=0.576935809 other=4 otherT=0.539358601 otherIndex=2 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (1,5 3,4 1,0 3,2) t=0.576935809 (2.00364304,2.00182152) tEnd=0.589885081 other=2 otherT=0.499089216 otherIndex=2 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (1,5 3,4 1,0 3,2) t=0.589885081 (2.00580978,1.94599628) tEnd=1 other=1 otherT=0.311007457 otherIndex=2 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=4 (3,2 1,5) t=0 (3,2) tEnd=0.125 other=3 otherT=1 otherIndex=4 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=4 (3,2 1,5) t=0.125 (2.75,2.375) tEnd=0.539358601 other=2 otherT=0.3125 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=4 (3,2 1,5) t=0.539358601 (1.92128277,3.61807585) tEnd=1 other=3 otherT=0.285714286 otherIndex=1 windSum=? windValue=1 oppValue=0
 activeOp op=diff miFrom=0 miTo=1 suFrom=0 suTo=0 result=1
 findNextOp debugShowSort contourWinding=-1 oppContourWinding=0 sign=-1
 debugShowSort [3] {{0,1}, {2,3}, {5,1}, {4,3}} tStart=0.285714286 tEnd=0.311007457 sign=-1 windValue=1 windSum=-1 -1->0 (max=-1) done=0 tiny=0 opp=0
 debugShowSort [0] {{4,3}, {0,1}} tStart=0.539358601 tEnd=1 sign=-1 windValue=1 windSum=1 0->1 (max=1) done=1 tiny=0 opp=0
 debugShowSort [1] {{0,1}, {2,3}, {5,1}, {4,3}} tStart=0.285714286 tEnd=0 sign=1 windValue=1 windSum=1 1->0 (max=1) done=1 tiny=0 opp=0
 debugShowSort [2] {{4,3}, {0,1}} tStart=0.539358601 tEnd=0.499089216 sign=1 windValue=1 windSum=-1 0->-1 (max=-1) done=0 tiny=0 opp=0
 findNextOp firstIndex=[3] sign=-1
 activeOp op=diff miFrom=0 miTo=1 suFrom=0 suTo=0 result=1
 activeOp op=diff miFrom=1 miTo=0 suFrom=0 suTo=0 result=1
 activeOp op=diff miFrom=0 miTo=1 suFrom=0 suTo=0 result=1
 markDoneBinary id=1 (0,1 2,3 5,1 4,3) t=0.285714286 [1] (1.84256566,1.92128277) tEnd=0.311007457 newWindSum=-1 newOppSum=0 oppSum=0 windSum=-1 windValue=1
 findNextOp from:[1] to:[2] start=3 end=2
 bridgeOp current id=1 from=(2.00580978,1.94599628) to=(1.84256566,1.92128277)
 path.moveTo(2.00580978,1.94599628);
 path.cubicTo(1.9517231,1.93876874, 1.89728141,1.93057418, 1.84256566,1.92128277);
 findNextOp debugShowSort contourWinding=-1 oppContourWinding=0 sign=-1
 debugShowSort [1] {{4,3}, {0,1}} tStart=0.499089216 tEnd=0.539358601 sign=-1 windValue=1 windSum=-1 -1->0 (max=-1) done=0 tiny=0 opp=0
 debugShowSort [2] {{1,5}, {3,4}, {1,0}, {3,2}} tStart=0.576935809 tEnd=0.285714286 sign=1 windValue=1 windSum=? 0->-1 (max=-1) done=0 tiny=0 opp=1
 debugShowSort [3] {{4,3}, {0,1}} tStart=0.499089216 tEnd=0.3125 sign=1 windValue=1 windSum=? 0->-1 (max=-1) done=0 tiny=0 opp=0
 debugShowSort [0] {{1,5}, {3,4}, {1,0}, {3,2}} tStart=0.576935809 tEnd=0.589885081 sign=-1 windValue=1 windSum=? -1->0 (max=-1) done=0 tiny=0 opp=1
 findNextOp firstIndex=[1] sign=-1
 activeOp op=diff miFrom=0 miTo=0 suFrom=0 suTo=1 result=0
 markDoneBinary id=3 (1,5 3,4 1,0 3,2) t=0.285714286 [1] (1.92128277,3.61807585) tEnd=0.576935809 newWindSum=-1 newOppSum=0 oppSum=? windSum=? windValue=1
 findNextOp chase.append id=3
 activeOp op=diff miFrom=0 miTo=1 suFrom=1 suTo=1 result=0
 markDoneBinary id=2 (4,3 0,1) t=0.3125 [1] (2.75,2.375) tEnd=0.499089216 newWindSum=-1 newOppSum=-1 oppSum=? windSum=? windValue=1
 findNextOp chase.append id=2
 activeOp op=diff miFrom=1 miTo=1 suFrom=1 suTo=0 result=1
 markWinding id=3 (1,5 3,4 1,0 3,2) t=0.576935809 [2] (2.00364304,2.00182152) tEnd=0.589885081 newWindSum=-1 newOppSum=-1 oppSum=? windSum=? windValue=1
 findNextOp chase.append id=3
 markDoneBinary id=2 (4,3 0,1) t=0.499089216 [2] (2.00364304,2.00182152) tEnd=0.539358601 newWindSum=-1 newOppSum=0 oppSum=0 windSum=-1 windValue=1
 findNextOp from:[2] to:[3] start=2 end=3
 bridgeOp current id=2 from=(1.84256566,1.92128277) to=(2.00364304,2.00182152)
 findNextOp debugShowSort contourWinding=0 oppContourWinding=-1 sign=1
 debugShowSort [2] {{1,5}, {3,4}, {1,0}, {3,2}} tStart=0.589885081 tEnd=0.576935809 sign=1 windValue=1 windSum=-1 0->-1 (max=-1) done=0 tiny=0 opp=0
 debugShowSort [3] {{0,1}, {2,3}, {5,1}, {4,3}} tStart=0.311007457 tEnd=1 sign=-1 windValue=1 windSum=? -1->0 (max=-1) done=0 tiny=0 opp=1
 debugShowSort [0] {{1,5}, {3,4}, {1,0}, {3,2}} tStart=0.589885081 tEnd=1 sign=-1 windValue=1 windSum=? -1->0 (max=-1) done=0 tiny=0 opp=0
 debugShowSort [1] {{0,1}, {2,3}, {5,1}, {4,3}} tStart=0.311007457 tEnd=0.285714286 sign=1 windValue=1 windSum=-1 0->-1 (max=-1) done=1 tiny=0 opp=1
 findNextOp firstIndex=[2] sign=1
 activeOp op=diff miFrom=1 miTo=0 suFrom=1 suTo=1 result=0
 markDoneBinary id=1 (0,1 2,3 5,1 4,3) t=0.311007457 [2] (2.00580978,1.94599628) tEnd=1 newWindSum=-1 newOppSum=-1 oppSum=? windSum=? windValue=1
 markDoneBinary id=2 (4,3 0,1) t=0 [0] (4,3) tEnd=0.3125 newWindSum=-1 newOppSum=-1 oppSum=? windSum=? windValue=1
 findNextOp chase.append id=2
 activeOp op=diff miFrom=0 miTo=0 suFrom=1 suTo=0 result=0
 markDoneBinary id=3 (1,5 3,4 1,0 3,2) t=0.589885081 [3] (2.00580978,1.94599628) tEnd=1 newWindSum=-1 newOppSum=0 oppSum=? windSum=? windValue=1
 markDoneBinary id=4 (3,2 1,5) t=0 [0] (3,2) tEnd=0.125 newWindSum=-1 newOppSum=0 oppSum=? windSum=? windValue=1
 findNextOp chase.append id=4
 activeOp op=diff miFrom=0 miTo=1 suFrom=0 suTo=0 result=1
 markDoneBinary id=3 (1,5 3,4 1,0 3,2) t=0.576935809 [2] (2.00364304,2.00182152) tEnd=0.589885081 newWindSum=-1 newOppSum=-1 oppSum=-1 windSum=-1 windValue=1
 findNextOp from:[3] to:[1] start=2 end=1
 bridgeOp current id=3 from=(2.00364304,2.00182152) to=(2.00580978,1.94599628)
 path.lineTo(2.00364304,2.00182152);
 path.cubicTo(2.00425649,1.98283899, 2.0049727,1.96422386, 2.00580978,1.94599628);
 path.close();
 findChaseOp debugShowSort contourWinding=0 oppContourWinding=0 sign=1
 debugShowSort [0] {{3,2}, {1,5}} tStart=0.125 tEnd=0 sign=1 windValue=1 windSum=-1 0->-1 (max=-1) done=1 tiny=0 opp=0
 debugShowSort [1] {{4,3}, {0,1}} tStart=0.3125 tEnd=0.499089216 sign=-1 windValue=1 windSum=-1 0->1 (max=1) done=1 tiny=0 opp=1
 debugShowSort [2] {{3,2}, {1,5}} tStart=0.125 tEnd=0.539358601 sign=-1 windValue=1 windSum=? -1->0 (max=-1) done=0 tiny=0 opp=0
 debugShowSort [3] {{4,3}, {0,1}} tStart=0.3125 tEnd=0 sign=1 windValue=1 windSum=-1 1->0 (max=1) done=1 tiny=0 opp=1
 findChaseOp debugShowSort contourWinding=0 oppContourWinding=0 sign=1
 debugShowSort [0] {{3,2}, {1,5}} tStart=0.125 tEnd=0 sign=1 windValue=1 windSum=-1 0->-1 (max=-1) done=1 tiny=0 opp=0
 debugShowSort [1] {{4,3}, {0,1}} tStart=0.3125 tEnd=0.499089216 sign=-1 windValue=1 windSum=-1 0->1 (max=1) done=1 tiny=0 opp=1
 debugShowSort [2] {{3,2}, {1,5}} tStart=0.125 tEnd=0.539358601 sign=-1 windValue=1 windSum=? -1->0 (max=-1) done=0 tiny=0 opp=0
 debugShowSort [3] {{4,3}, {0,1}} tStart=0.3125 tEnd=0 sign=1 windValue=1 windSum=-1 1->0 (max=1) done=1 tiny=0 opp=1
 markWinding id=4 (3,2 1,5) t=0.125 [1] (2.75,2.375) tEnd=0.539358601 newWindSum=-1 newOppSum=1 oppSum=? windSum=? windValue=1
 debugShowActiveSpans id=3 (1,5 3,4 1,0 3,2) t=0 (1,5) tEnd=0.285714286 other=4 otherT=1 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=4 (3,2 1,5) t=0.125 (2.75,2.375) tEnd=0.539358601 other=2 otherT=0.3125 otherIndex=1 windSum=-1 windValue=1 oppValue=0
 debugShowActiveSpans id=4 (3,2 1,5) t=0.539358601 (1.92128277,3.61807585) tEnd=1 other=3 otherT=0.285714286 otherIndex=1 windSum=? windValue=1 oppValue=0
 activeOp op=diff miFrom=1 miTo=1 suFrom=1 suTo=0 result=1
 findNextOp debugShowSort contourWinding=0 oppContourWinding=1 sign=1
 debugShowSort [0] {{3,2}, {1,5}} tStart=0.539358601 tEnd=0.125 sign=1 windValue=1 windSum=-1 0->-1 (max=-1) done=0 tiny=0 opp=0
 debugShowSort [1] {{1,5}, {3,4}, {1,0}, {3,2}} tStart=0.285714286 tEnd=0.576935809 sign=-1 windValue=1 windSum=-1 -1->0 (max=-1) done=1 tiny=0 opp=0
 debugShowSort [2] {{3,2}, {1,5}} tStart=0.539358601 tEnd=1 sign=-1 windValue=1 windSum=? 0->1 (max=1) done=0 tiny=0 opp=0
 debugShowSort [3] {{1,5}, {3,4}, {1,0}, {3,2}} tStart=0.285714286 tEnd=0 sign=1 windValue=1 windSum=? 1->0 (max=1) done=0 tiny=0 opp=0
 findNextOp firstIndex=[0] sign=1
 activeOp op=diff miFrom=1 miTo=1 suFrom=1 suTo=0 result=1
 activeOp op=diff miFrom=1 miTo=1 suFrom=0 suTo=1 result=1
 markWinding id=4 (3,2 1,5) t=0.539358601 [2] (1.92128277,3.61807585) tEnd=1 newWindSum=1 newOppSum=1 oppSum=? windSum=? windValue=1
 markWinding id=3 (1,5 3,4 1,0 3,2) t=0 [0] (1,5) tEnd=0.285714286 newWindSum=1 newOppSum=1 oppSum=? windSum=? windValue=1
 findNextOp chase.append id=3
 activeOp op=diff miFrom=1 miTo=1 suFrom=1 suTo=0 result=1
 markDoneBinary id=4 (3,2 1,5) t=0.125 [1] (2.75,2.375) tEnd=0.539358601 newWindSum=-1 newOppSum=1 oppSum=1 windSum=-1 windValue=1
 findNextOp from:[4] to:[3] start=1 end=0
 bridgeOp current id=4 from=(2.75,2.375) to=(1.92128277,3.61807585)
 findNextOp simple
 markDoneBinary id=3 (1,5 3,4 1,0 3,2) t=0 [0] (1,5) tEnd=0.285714286 newWindSum=1 newOppSum=1 oppSum=1 windSum=1 windValue=1
 bridgeOp current id=3 from=(1.92128277,3.61807585) to=(1,5)
 path.moveTo(2.75,2.375);
 path.lineTo(1.92128277,3.61807585);
 path.cubicTo(1.8163265,4.18367338, 1.57142854,4.71428585, 1,5);
 findNextOp debugShowSort contourWinding=0 oppContourWinding=1 sign=-1
 debugShowSort [2] {{3,2}, {1,5}} tStart=0.539358601 tEnd=1 sign=-1 windValue=1 windSum=1 0->1 (max=1) done=0 tiny=0 opp=0
 debugShowSort [3] {{1,5}, {3,4}, {1,0}, {3,2}} tStart=0.285714286 tEnd=0 sign=1 windValue=1 windSum=1 1->0 (max=1) done=1 tiny=0 opp=0
 debugShowSort [0] {{3,2}, {1,5}} tStart=0.539358601 tEnd=0.125 sign=1 windValue=1 windSum=-1 0->-1 (max=-1) done=1 tiny=0 opp=0
 debugShowSort [1] {{1,5}, {3,4}, {1,0}, {3,2}} tStart=0.285714286 tEnd=0.576935809 sign=-1 windValue=1 windSum=-1 -1->0 (max=-1) done=1 tiny=0 opp=0
 findNextOp firstIndex=[2] sign=-1
 activeOp op=diff miFrom=1 miTo=1 suFrom=1 suTo=0 result=1
 activeOp op=diff miFrom=1 miTo=1 suFrom=0 suTo=1 result=1
 activeOp op=diff miFrom=1 miTo=1 suFrom=1 suTo=0 result=1
 markDoneBinary id=4 (3,2 1,5) t=0.539358601 [2] (1.92128277,3.61807585) tEnd=1 newWindSum=1 newOppSum=1 oppSum=1 windSum=1 windValue=1
 findNextOp from:[4] to:[3] start=1 end=2
 bridgeOp current id=4 from=(1,5) to=(1.92128277,3.61807585)
 </div>

 <div id="cubicOp39da">
 computed quadratics given
   {{2.512,1.571}, {2.64,1.66}, {2.8,1.8}, {3,2}},
   {{2.41818762,1.98497726}, {2.82699049,2.00933065}, {3.20046793,1.99420472}, {3.49861995,2.00359946}},
 computed quadratics set 1
   {{2.512,1.571}, {2.702,1.70225}, {3,2}},
 computed quadratics set 2
   {{2.41818762,1.98497726}, {2.79879886,2.00375569}, {3.125,2}},
   {{3.125,2}, {3.32670858,1.99910014}, {3.49861995,2.00359946}},
 </div>

 <div id="cubicOp40d">
   SimplifyNew_Test [cubicOp40d]
 {{0,1}, {1,5}, {3,2}, {4,2}},
 {{4,2}, {0,1}},
 op difference
 {{2,3}, {2,4}, {1,0}, {5,1}},
 {{5,1}, {2,3}},
 debugShowCubicIntersection no self intersect {{2,3}, {2,4}, {1,0}, {5,1}}
 debugShowCubicLineIntersection wtTs[0]=0 {{2,3}, {2,4}, {1,0}, {5,1}} {{2,3}} wtTs[1]=1 {{5,1}} wnTs[0]=1 {{5,1}, {2,3}} wnTs[1]=0
 debugShowCubicIntersection wtTs[0]=0 {{2,3}, {2,4}, {1,0}, {5,1}} {{2,3}} wtTs[1]=0.226611502 {{1.915764455286163,3.0259142027140675}} wnTs[0]=0.5 {{0,1}, {1,5}, {3,2}, {4,2}} wnTs[1]=0.481278074
 debugShowCubicLineIntersection wtTs[0]=0.601219833 {{2,3}, {2,4}, {1,0}, {5,1}} {{2.2195247359544519,1.554881183988613}} wnTs[0]=0.445119 {{4,2}, {0,1}}
 debugShowCubicLineIntersection wtTs[0]=0.5 {{0,1}, {1,5}, {3,2}, {4,2}} {{2.0000000000000009,2.9999999999999996}} wnTs[0]=1 {{5,1}, {2,3}}
 debugShowLineIntersection wtTs[0]=0.454545455 {{5,1}, {2,3}} {{3.6363636363636362,1.9090909090909089}} wnTs[0]=0.0909091 {{4,2}, {0,1}}
 debugShowCubicIntersection no self intersect {{0,1}, {1,5}, {3,2}, {4,2}}
 debugShowCubicLineIntersection wtTs[0]=0 {{0,1}, {1,5}, {3,2}, {4,2}} {{0,1}} wtTs[1]=1 {{4,2}} wnTs[0]=1 {{4,2}, {0,1}} wnTs[1]=0
 debugShowActiveSpans id=3 (2,3 2,4 1,0 5,1) t=0 (2,3) tEnd=0.226611502 other=4 otherT=1 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (2,3 2,4 1,0 5,1) t=0.226611502 (1.91576445,3.02591419) tEnd=0.601219833 other=1 otherT=0.481278074 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (2,3 2,4 1,0 5,1) t=0.601219833 (2.21952462,1.55488122) tEnd=1 other=2 otherT=0.445118816 otherIndex=2 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=4 (5,1 2,3) t=0 (5,1) tEnd=0.454545455 other=3 otherT=1 otherIndex=4 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=4 (5,1 2,3) t=0.454545455 (3.63636374,1.90909088) tEnd=1 other=2 otherT=0.0909090909 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=4 (5,1 2,3) t=1 (2,3) tEnd=1 other=1 otherT=0.5 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,1 1,5 3,2 4,2) t=0 (0,1) tEnd=0.481278074 other=2 otherT=1 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,1 1,5 3,2 4,2) t=0.481278074 (1.91576445,3.02591419) tEnd=0.5 other=3 otherT=0.226611502 otherIndex=2 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,1 1,5 3,2 4,2) t=0.5 (2,3) tEnd=1 other=3 otherT=0 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,1 1,5 3,2 4,2) t=0.5 (2,3) tEnd=1 other=4 otherT=1 otherIndex=2 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=2 (4,2 0,1) t=0 (4,2) tEnd=0.0909090909 other=1 otherT=1 otherIndex=4 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=2 (4,2 0,1) t=0.0909090909 (3.63636374,1.90909088) tEnd=0.445118816 other=4 otherT=0.454545455 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=2 (4,2 0,1) t=0.445118816 (2.21952462,1.55488122) tEnd=1 other=3 otherT=0.601219833 otherIndex=3 windSum=? windValue=1 oppValue=0
 findTop debugShowSort contourWinding=0 oppContourWinding=0 sign=1
 debugShowSort [0] {{2,3}, {2,4}, {1,0}, {5,1}} tStart=1 tEnd=0.601219833 sign=1 windValue=1 windSum=? 0->-1 (max=-1) done=0 tiny=0 opp=0
 debugShowSort [1] {{5,1}, {2,3}} tStart=0 tEnd=0.454545455 sign=-1 windValue=1 windSum=? -1->0 (max=-1) done=0 tiny=0 opp=0
 findTop xyE=(5,1) xyS=(2.21952462,1.55488122)
 findTop dxyE=(12,3) dxyS=(2.8990562,-4.19263649) cross=-59.0088043 bumpsUp=true
 markWinding id=3 (2,3 2,4 1,0 5,1) t=0.601219833 [3] (2.21952462,1.55488122) tEnd=1 newWindSum=-1 newOppSum=0 oppSum=? windSum=? windValue=1
 markWinding id=4 (5,1 2,3) t=0 [0] (5,1) tEnd=0.454545455 newWindSum=-1 newOppSum=0 oppSum=? windSum=? windValue=1
 markWinding id=3 (2,3 2,4 1,0 5,1) t=0.601219833 [3] (2.21952462,1.55488122) tEnd=1 newWindSum=-1 newOppSum=0 oppSum=0 windSum=-1 windValue=1
 activeOp op=diff miFrom=0 miTo=0 suFrom=1 suTo=0 result=0
 markDoneBinary id=3 (2,3 2,4 1,0 5,1) t=0.601219833 [3] (2.21952462,1.55488122) tEnd=1 newWindSum=-1 newOppSum=0 oppSum=0 windSum=-1 windValue=1
 markDoneBinary id=4 (5,1 2,3) t=0 [0] (5,1) tEnd=0.454545455 newWindSum=-1 newOppSum=0 oppSum=0 windSum=-1 windValue=1
 findChaseOp debugShowSort contourWinding=0 oppContourWinding=0 sign=1
 debugShowSort [0] {{5,1}, {2,3}} tStart=0.454545455 tEnd=0 sign=1 windValue=1 windSum=-1 0->-1 (max=-1) done=1 tiny=0 opp=0
 debugShowSort [1] {{4,2}, {0,1}} tStart=0.0909090909 tEnd=0.445118816 sign=-1 windValue=1 windSum=? 0->1 (max=1) done=0 tiny=0 opp=1
 debugShowSort [2] {{5,1}, {2,3}} tStart=0.454545455 tEnd=1 sign=-1 windValue=1 windSum=? -1->0 (max=-1) done=0 tiny=0 opp=0
 debugShowSort [3] {{4,2}, {0,1}} tStart=0.0909090909 tEnd=0 sign=1 windValue=1 windSum=? 1->0 (max=1) done=0 tiny=0 opp=1
 findChaseOp debugShowSort contourWinding=0 oppContourWinding=0 sign=1
 debugShowSort [0] {{5,1}, {2,3}} tStart=0.454545455 tEnd=0 sign=1 windValue=1 windSum=-1 0->-1 (max=-1) done=1 tiny=0 opp=0
 debugShowSort [1] {{4,2}, {0,1}} tStart=0.0909090909 tEnd=0.445118816 sign=-1 windValue=1 windSum=? 0->1 (max=1) done=0 tiny=0 opp=1
 debugShowSort [2] {{5,1}, {2,3}} tStart=0.454545455 tEnd=1 sign=-1 windValue=1 windSum=? -1->0 (max=-1) done=0 tiny=0 opp=0
 debugShowSort [3] {{4,2}, {0,1}} tStart=0.0909090909 tEnd=0 sign=1 windValue=1 windSum=? 1->0 (max=1) done=0 tiny=0 opp=1
 markWinding id=2 (4,2 0,1) t=0.0909090909 [1] (3.63636374,1.90909088) tEnd=0.445118816 newWindSum=1 newOppSum=-1 oppSum=? windSum=? windValue=1
 markWinding id=4 (5,1 2,3) t=0.454545455 [1] (3.63636374,1.90909088) tEnd=1 newWindSum=-1 newOppSum=1 oppSum=? windSum=? windValue=1
 markWinding id=2 (4,2 0,1) t=0 [0] (4,2) tEnd=0.0909090909 newWindSum=1 newOppSum=0 oppSum=? windSum=? windValue=1
 markWinding id=1 (0,1 1,5 3,2 4,2) t=0.5 [2] (2,3) tEnd=0.5 newWindSum=1 newOppSum=0 oppSum=? windSum=? windValue=1
 markWinding id=1 (0,1 1,5 3,2 4,2) t=0.5 [3] (2,3) tEnd=1 newWindSum=1 newOppSum=0 oppSum=? windSum=? windValue=1
 debugShowActiveSpans id=3 (2,3 2,4 1,0 5,1) t=0 (2,3) tEnd=0.226611502 other=4 otherT=1 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (2,3 2,4 1,0 5,1) t=0.226611502 (1.91576445,3.02591419) tEnd=0.601219833 other=1 otherT=0.481278074 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=4 (5,1 2,3) t=0.454545455 (3.63636374,1.90909088) tEnd=1 other=2 otherT=0.0909090909 otherIndex=1 windSum=-1 windValue=1 oppValue=0
 debugShowActiveSpans id=4 (5,1 2,3) t=1 (2,3) tEnd=1 other=1 otherT=0.5 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,1 1,5 3,2 4,2) t=0 (0,1) tEnd=0.481278074 other=2 otherT=1 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,1 1,5 3,2 4,2) t=0.481278074 (1.91576445,3.02591419) tEnd=0.5 other=3 otherT=0.226611502 otherIndex=2 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,1 1,5 3,2 4,2) t=0.5 (2,3) tEnd=1 other=3 otherT=0 otherIndex=1 windSum=1 windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,1 1,5 3,2 4,2) t=0.5 (2,3) tEnd=1 other=4 otherT=1 otherIndex=2 windSum=1 windValue=1 oppValue=0
 debugShowActiveSpans id=2 (4,2 0,1) t=0 (4,2) tEnd=0.0909090909 other=1 otherT=1 otherIndex=4 windSum=1 windValue=1 oppValue=0
 debugShowActiveSpans id=2 (4,2 0,1) t=0.0909090909 (3.63636374,1.90909088) tEnd=0.445118816 other=4 otherT=0.454545455 otherIndex=1 windSum=1 windValue=1 oppValue=0
 debugShowActiveSpans id=2 (4,2 0,1) t=0.445118816 (2.21952462,1.55488122) tEnd=1 other=3 otherT=0.601219833 otherIndex=3 windSum=? windValue=1 oppValue=0
 activeOp op=diff miFrom=0 miTo=1 suFrom=1 suTo=1 result=0
 markDoneBinary id=2 (4,2 0,1) t=0.0909090909 [1] (3.63636374,1.90909088) tEnd=0.445118816 newWindSum=1 newOppSum=-1 oppSum=-1 windSum=1 windValue=1
 findChaseOp debugShowSort contourWinding=-1 oppContourWinding=0 sign=-1
 debugShowSort [0] {{2,3}, {2,4}, {1,0}, {5,1}} tStart=0.601219833 tEnd=1 sign=-1 windValue=1 windSum=-1 -1->0 (max=-1) done=1 tiny=0 opp=0
 debugShowSort [1] {{4,2}, {0,1}} tStart=0.445118816 tEnd=1 sign=-1 windValue=1 windSum=? 0->1 (max=1) done=0 tiny=0 opp=1
 debugShowSort [2] {{2,3}, {2,4}, {1,0}, {5,1}} tStart=0.601219833 tEnd=0.226611502 sign=1 windValue=1 windSum=? 0->-1 (max=-1) done=0 tiny=0 opp=0
 debugShowSort [3] {{4,2}, {0,1}} tStart=0.445118816 tEnd=0.0909090909 sign=1 windValue=1 windSum=1 1->0 (max=1) done=1 tiny=0 opp=1
 findChaseOp debugShowSort contourWinding=-1 oppContourWinding=0 sign=-1
 debugShowSort [0] {{2,3}, {2,4}, {1,0}, {5,1}} tStart=0.601219833 tEnd=1 sign=-1 windValue=1 windSum=-1 -1->0 (max=-1) done=1 tiny=0 opp=0
 debugShowSort [1] {{4,2}, {0,1}} tStart=0.445118816 tEnd=1 sign=-1 windValue=1 windSum=? 0->1 (max=1) done=0 tiny=0 opp=1
 debugShowSort [2] {{2,3}, {2,4}, {1,0}, {5,1}} tStart=0.601219833 tEnd=0.226611502 sign=1 windValue=1 windSum=? 0->-1 (max=-1) done=0 tiny=0 opp=0
 debugShowSort [3] {{4,2}, {0,1}} tStart=0.445118816 tEnd=0.0909090909 sign=1 windValue=1 windSum=1 1->0 (max=1) done=1 tiny=0 opp=1
 markWinding id=2 (4,2 0,1) t=0.445118816 [2] (2.21952462,1.55488122) tEnd=1 newWindSum=1 newOppSum=0 oppSum=? windSum=? windValue=1
 markWinding id=1 (0,1 1,5 3,2 4,2) t=0 [0] (0,1) tEnd=0.481278074 newWindSum=1 newOppSum=0 oppSum=? windSum=? windValue=1
 markWinding id=3 (2,3 2,4 1,0 5,1) t=0.226611502 [2] (1.91576445,3.02591419) tEnd=0.601219833 newWindSum=-1 newOppSum=1 oppSum=? windSum=? windValue=1
 debugShowActiveSpans id=3 (2,3 2,4 1,0 5,1) t=0 (2,3) tEnd=0.226611502 other=4 otherT=1 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (2,3 2,4 1,0 5,1) t=0.226611502 (1.91576445,3.02591419) tEnd=0.601219833 other=1 otherT=0.481278074 otherIndex=1 windSum=-1 windValue=1 oppValue=0
 debugShowActiveSpans id=4 (5,1 2,3) t=0.454545455 (3.63636374,1.90909088) tEnd=1 other=2 otherT=0.0909090909 otherIndex=1 windSum=-1 windValue=1 oppValue=0
 debugShowActiveSpans id=4 (5,1 2,3) t=1 (2,3) tEnd=1 other=1 otherT=0.5 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,1 1,5 3,2 4,2) t=0 (0,1) tEnd=0.481278074 other=2 otherT=1 otherIndex=3 windSum=1 windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,1 1,5 3,2 4,2) t=0.481278074 (1.91576445,3.02591419) tEnd=0.5 other=3 otherT=0.226611502 otherIndex=2 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,1 1,5 3,2 4,2) t=0.5 (2,3) tEnd=1 other=3 otherT=0 otherIndex=1 windSum=1 windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,1 1,5 3,2 4,2) t=0.5 (2,3) tEnd=1 other=4 otherT=1 otherIndex=2 windSum=1 windValue=1 oppValue=0
 debugShowActiveSpans id=2 (4,2 0,1) t=0 (4,2) tEnd=0.0909090909 other=1 otherT=1 otherIndex=4 windSum=1 windValue=1 oppValue=0
 debugShowActiveSpans id=2 (4,2 0,1) t=0.445118816 (2.21952462,1.55488122) tEnd=1 other=3 otherT=0.601219833 otherIndex=3 windSum=1 windValue=1 oppValue=0
 activeOp op=diff miFrom=0 miTo=1 suFrom=0 suTo=0 result=1
 findNextOp simple
 markDoneBinary id=2 (4,2 0,1) t=0.445118816 [2] (2.21952462,1.55488122) tEnd=1 newWindSum=1 newOppSum=0 oppSum=0 windSum=1 windValue=1
 bridgeOp current id=2 from=(2.21952462,1.55488122) to=(0,1)
 findNextOp debugShowSort contourWinding=1 oppContourWinding=0 sign=1
 debugShowSort [2] {{0,1}, {1,5}, {3,2}, {4,2}} tStart=0.481278074 tEnd=0 sign=1 windValue=1 windSum=1 1->0 (max=1) done=0 tiny=0 opp=0
 debugShowSort [3] {{2,3}, {2,4}, {1,0}, {5,1}} tStart=0.226611502 tEnd=0 sign=1 windValue=1 windSum=? 0->-1 (max=-1) done=0 tiny=0 opp=1
 debugShowSort [0] {{0,1}, {1,5}, {3,2}, {4,2}} tStart=0.481278074 tEnd=0.5 sign=-1 windValue=1 windSum=? 0->1 (max=1) done=0 tiny=0 opp=0
 debugShowSort [1] {{2,3}, {2,4}, {1,0}, {5,1}} tStart=0.226611502 tEnd=0.601219833 sign=-1 windValue=1 windSum=-1 -1->0 (max=-1) done=0 tiny=0 opp=1
 findNextOp firstIndex=[2] sign=1
 activeOp op=diff miFrom=0 miTo=0 suFrom=0 suTo=1 result=0
 markDoneBinary id=3 (2,3 2,4 1,0 5,1) t=0 [0] (2,3) tEnd=0 newWindSum=-1 newOppSum=0 oppSum=? windSum=? windValue=1
 markDoneBinary id=3 (2,3 2,4 1,0 5,1) t=0 [1] (2,3) tEnd=0.226611502 newWindSum=-1 newOppSum=0 oppSum=? windSum=? windValue=1
 findNextOp chase.append id=3
 activeOp op=diff miFrom=0 miTo=1 suFrom=1 suTo=1 result=0
 markDoneBinary id=1 (0,1 1,5 3,2 4,2) t=0.481278074 [1] (1.91576445,3.02591419) tEnd=0.5 newWindSum=1 newOppSum=-1 oppSum=? windSum=? windValue=1
 findNextOp chase.append id=1
 activeOp op=diff miFrom=1 miTo=1 suFrom=1 suTo=0 result=1
 markDoneBinary id=1 (0,1 1,5 3,2 4,2) t=0 [0] (0,1) tEnd=0.481278074 newWindSum=1 newOppSum=0 oppSum=0 windSum=1 windValue=1
 findNextOp from:[1] to:[3] start=2 end=3
 bridgeOp current id=1 from=(0,1) to=(1.91576445,3.02591419)
 path.moveTo(2.21952462,1.55488122);
 path.lineTo(0,1);
 path.cubicTo(0.481278062,2.92511225, 1.19418478,3.22882462, 1.91576445,3.02591419);
 findNextOp debugShowSort contourWinding=0 oppContourWinding=1 sign=1
 debugShowSort [2] {{2,3}, {2,4}, {1,0}, {5,1}} tStart=0.601219833 tEnd=0.226611502 sign=1 windValue=1 windSum=-1 0->-1 (max=-1) done=0 tiny=0 opp=0
 debugShowSort [3] {{4,2}, {0,1}} tStart=0.445118816 tEnd=0.0909090909 sign=1 windValue=1 windSum=1 1->0 (max=1) done=1 tiny=0 opp=1
 debugShowSort [0] {{2,3}, {2,4}, {1,0}, {5,1}} tStart=0.601219833 tEnd=1 sign=-1 windValue=1 windSum=-1 -1->0 (max=-1) done=1 tiny=0 opp=0
 debugShowSort [1] {{4,2}, {0,1}} tStart=0.445118816 tEnd=1 sign=-1 windValue=1 windSum=1 0->1 (max=1) done=1 tiny=0 opp=1
 findNextOp firstIndex=[2] sign=1
 activeOp op=diff miFrom=1 miTo=0 suFrom=1 suTo=1 result=0
 activeOp op=diff miFrom=0 miTo=0 suFrom=1 suTo=0 result=0
 activeOp op=diff miFrom=0 miTo=1 suFrom=0 suTo=0 result=1
 markDoneBinary id=3 (2,3 2,4 1,0 5,1) t=0.226611502 [2] (1.91576445,3.02591419) tEnd=0.601219833 newWindSum=-1 newOppSum=1 oppSum=1 windSum=-1 windValue=1
 findNextOp from:[3] to:[2] start=2 end=3
 bridgeOp current id=3 from=(1.91576445,3.02591419) to=(2.21952462,1.55488122)
 path.cubicTo(1.86140633,2.74398875, 1.8575213,2.07841325, 2.21952462,1.55488122);
 path.close();
 debugShowActiveSpans id=4 (5,1 2,3) t=0.454545455 (3.63636374,1.90909088) tEnd=1 other=2 otherT=0.0909090909 otherIndex=1 windSum=-1 windValue=1 oppValue=0
 debugShowActiveSpans id=4 (5,1 2,3) t=1 (2,3) tEnd=1 other=1 otherT=0.5 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,1 1,5 3,2 4,2) t=0.5 (2,3) tEnd=1 other=3 otherT=0 otherIndex=1 windSum=1 windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,1 1,5 3,2 4,2) t=0.5 (2,3) tEnd=1 other=4 otherT=1 otherIndex=2 windSum=1 windValue=1 oppValue=0
 debugShowActiveSpans id=2 (4,2 0,1) t=0 (4,2) tEnd=0.0909090909 other=1 otherT=1 otherIndex=4 windSum=1 windValue=1 oppValue=0
 activeOp op=diff miFrom=0 miTo=1 suFrom=0 suTo=0 result=1
 findNextOp simple
 markDoneBinary id=1 (0,1 1,5 3,2 4,2) t=0.5 [2] (2,3) tEnd=0.5 newWindSum=1 newOppSum=0 oppSum=0 windSum=1 windValue=1
 markDoneBinary id=1 (0,1 1,5 3,2 4,2) t=0.5 [3] (2,3) tEnd=1 newWindSum=1 newOppSum=0 oppSum=0 windSum=1 windValue=1
 bridgeOp current id=1 from=(2,3) to=(4,2)
 path.moveTo(2,3);
 path.cubicTo(2.75,2.75, 3.5,2, 4,2);
 findNextOp debugShowSort contourWinding=1 oppContourWinding=0 sign=1
 debugShowSort [3] {{4,2}, {0,1}} tStart=0.0909090909 tEnd=0 sign=1 windValue=1 windSum=1 1->0 (max=1) done=0 tiny=0 opp=0
 debugShowSort [0] {{5,1}, {2,3}} tStart=0.454545455 tEnd=0 sign=1 windValue=1 windSum=-1 0->-1 (max=-1) done=1 tiny=0 opp=1
 debugShowSort [1] {{4,2}, {0,1}} tStart=0.0909090909 tEnd=0.445118816 sign=-1 windValue=1 windSum=1 0->1 (max=1) done=1 tiny=0 opp=0
 debugShowSort [2] {{5,1}, {2,3}} tStart=0.454545455 tEnd=1 sign=-1 windValue=1 windSum=-1 -1->0 (max=-1) done=0 tiny=0 opp=1
 findNextOp firstIndex=[3] sign=1
 activeOp op=diff miFrom=0 miTo=0 suFrom=0 suTo=1 result=0
 activeOp op=diff miFrom=0 miTo=1 suFrom=1 suTo=1 result=0
 activeOp op=diff miFrom=1 miTo=1 suFrom=1 suTo=0 result=1
 markDoneBinary id=2 (4,2 0,1) t=0 [0] (4,2) tEnd=0.0909090909 newWindSum=1 newOppSum=0 oppSum=0 windSum=1 windValue=1
 findNextOp from:[2] to:[4] start=1 end=2
 bridgeOp current id=2 from=(4,2) to=(3.63636374,1.90909088)
 findNextOp debugShowSort contourWinding=0 oppContourWinding=1 sign=1
 debugShowSort [1] {{5,1}, {2,3}} tStart=1 tEnd=0.454545455 sign=1 windValue=1 windSum=-1 0->-1 (max=-1) done=0 tiny=0 opp=0
 debugShowSort [2] {{0,1}, {1,5}, {3,2}, {4,2}} tStart=0.5 tEnd=0.481278074 sign=1 windValue=1 windSum=1 1->0 (max=1) done=1 tiny=0 opp=1
 debugShowSort [3] {{2,3}, {2,4}, {1,0}, {5,1}} tStart=0 tEnd=0.226611502 sign=-1 windValue=1 windSum=-1 -1->0 (max=-1) done=1 tiny=0 opp=0
 debugShowSort [0] {{0,1}, {1,5}, {3,2}, {4,2}} tStart=0.5 tEnd=1 sign=-1 windValue=1 windSum=1 0->1 (max=1) done=1 tiny=0 opp=1
 findNextOp firstIndex=[1] sign=1
 activeOp op=diff miFrom=1 miTo=0 suFrom=1 suTo=1 result=0
 activeOp op=diff miFrom=0 miTo=0 suFrom=1 suTo=0 result=0
 activeOp op=diff miFrom=0 miTo=1 suFrom=0 suTo=0 result=1
 markDoneBinary id=4 (5,1 2,3) t=0.454545455 [1] (3.63636374,1.90909088) tEnd=1 newWindSum=-1 newOppSum=1 oppSum=1 windSum=-1 windValue=1
 findNextOp from:[4] to:[1] start=3 end=4
 bridgeOp current id=4 from=(3.63636374,1.90909088) to=(2,3)
 path.lineTo(3.63636374,1.90909088);
 path.lineTo(2,3);
 path.close();
 debugShowActiveSpans id=4 (5,1 2,3) t=1 (2,3) tEnd=1 other=1 otherT=0.5 otherIndex=3 windSum=? windValue=1 oppValue=0
 findTop debugShowSort contourWinding=0 oppContourWinding=0 sign=-1
 debugShowSort [0] {{0,1}, {1,5}, {3,2}, {4,2}} tStart=0.5 tEnd=1 sign=-1 windValue=1 windSum=1 0->1 (max=1) done=1 tiny=0 opp=0
 debugShowSort [1] {{5,1}, {2,3}} tStart=1 tEnd=0.454545455 sign=1 windValue=1 windSum=-1 0->-1 (max=-1) done=1 tiny=0 opp=1
 debugShowSort [2] {{0,1}, {1,5}, {3,2}, {4,2}} tStart=0.5 tEnd=0.481278074 sign=1 windValue=1 windSum=1 1->0 (max=1) done=1 tiny=0 opp=0
 debugShowSort [3] {{2,3}, {2,4}, {1,0}, {5,1}} tStart=0 tEnd=0.226611502 sign=-1 windValue=1 windSum=-1 -1->0 (max=-1) done=1 tiny=0 opp=1
 </div>

 <div id="cubicOp41i">
   SimplifyNew_Test [cubicOp41i]
 {{0,1}, {2,6}, {4,3}, {6,4}},
 {{6,4}, {0,1}},
 op intersect
 {{3,4}, {4,6}, {1,0}, {6,2}},
 {{6,2}, {3,4}},
 debugShowCubicIntersection no self intersect {{0,1}, {2,6}, {4,3}, {6,4}}
 debugShowCubicLineIntersection wtTs[0]=0 {{0,1}, {2,6}, {4,3}, {6,4}} {{0,1}} wtTs[1]=1 {{6,4}} wnTs[0]=1 {{6,4}, {0,1}} wnTs[1]=0
 debugShowCubicIntersection wtTs[0]=0.5 {{0,1}, {2,6}, {4,3}, {6,4}} {{2.9999999999509201,3.9999999999999996}} wtTs[1]=0.521137715 {{3.1268262924910069,3.9974325146613827}} wnTs[0]=0 {{3,4}, {4,6}, {1,0}, {6,2}} wnTs[1]=0.317571165
 debugShowCubicLineIntersection wtTs[0]=0.5 {{0,1}, {2,6}, {4,3}, {6,4}} {{3,4}} wnTs[0]=1 {{6,2}, {3,4}}
 debugShowCubicLineIntersection wtTs[0]=0.580941393 {{3,4}, {4,6}, {1,0}, {6,2}} {{3.0456725133851208,2.5228362566925604}} wnTs[0]=0.492388 {{6,4}, {0,1}}
 debugShowLineIntersection wtTs[0]=0.285714286 {{6,4}, {0,1}} {{4.2857142857142856,3.1428571428571428}} wnTs[0]=0.571429 {{6,2}, {3,4}}
 debugShowCubicIntersection no self intersect {{3,4}, {4,6}, {1,0}, {6,2}}
 debugShowCubicLineIntersection wtTs[0]=0 {{3,4}, {4,6}, {1,0}, {6,2}} {{3,4}} wtTs[1]=0.333333333 {{3.1111111111111116,3.9259259259259256}} wtTs[2]=1 {{6,2}} wnTs[0]=1 {{6,2}, {3,4}} wnTs[1]=0.962962963 wnTs[2]=0
 debugShowActiveSpans id=1 (0,1 2,6 4,3 6,4) t=0 (0,1) tEnd=0.5 other=2 otherT=1 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,1 2,6 4,3 6,4) t=0.5 (3,4) tEnd=0.521137715 other=4 otherT=1 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,1 2,6 4,3 6,4) t=0.521137715 (3.12682629,3.99743247) tEnd=1 other=3 otherT=0.317571165 otherIndex=2 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=2 (6,4 0,1) t=0 (6,4) tEnd=0.285714286 other=1 otherT=1 otherIndex=4 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=2 (6,4 0,1) t=0.285714286 (4.28571415,3.14285707) tEnd=0.492387914 other=4 otherT=0.571428571 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=2 (6,4 0,1) t=0.492387914 (3.04567242,2.52283621) tEnd=1 other=3 otherT=0.580941393 otherIndex=4 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (3,4 4,6 1,0 6,2) t=0 (3,4) tEnd=0.317571165 other=1 otherT=0.5 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (3,4 4,6 1,0 6,2) t=0.317571165 (3.12682629,3.99743247) tEnd=0.333333333 other=1 otherT=0.521137715 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (3,4 4,6 1,0 6,2) t=0.333333333 (3.11111116,3.92592597) tEnd=0.580941393 other=4 otherT=0.962962963 otherIndex=2 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (3,4 4,6 1,0 6,2) t=0.580941393 (3.04567242,2.52283621) tEnd=1 other=2 otherT=0.492387914 otherIndex=2 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=4 (6,2 3,4) t=0 (6,2) tEnd=0.571428571 other=3 otherT=1 otherIndex=5 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=4 (6,2 3,4) t=0.571428571 (4.28571415,3.14285707) tEnd=0.962962963 other=2 otherT=0.285714286 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=4 (6,2 3,4) t=0.962962963 (3.11111116,3.92592597) tEnd=1 other=3 otherT=0.333333333 otherIndex=3 windSum=? windValue=1 oppValue=0
 findTop debugShowSort contourWinding=0 oppContourWinding=0 sign=-1
 debugShowSort [0] {{0,1}, {2,6}, {4,3}, {6,4}} tStart=0 tEnd=0.5 sign=-1 windValue=1 windSum=? 0->1 (max=1) done=0 tiny=0 opp=0
 debugShowSort [1] {{6,4}, {0,1}} tStart=1 tEnd=0.492387914 sign=1 windValue=1 windSum=? 1->0 (max=1) done=0 tiny=0 opp=0
 findTop xyE=(0,1) xyS=(3,4)
 findTop dxyE=(6,15) dxyS=(6,9.81599801e-11) cross=-90 bumpsUp=false
 markWinding id=1 (0,1 2,6 4,3 6,4) t=0 [0] (0,1) tEnd=0.5 newWindSum=1 newOppSum=0 oppSum=? windSum=? windValue=1
 markWinding id=2 (6,4 0,1) t=0.492387914 [2] (3.04567242,2.52283621) tEnd=1 newWindSum=1 newOppSum=0 oppSum=? windSum=? windValue=1
 markWinding id=1 (0,1 2,6 4,3 6,4) t=0 [0] (0,1) tEnd=0.5 newWindSum=1 newOppSum=0 oppSum=0 windSum=1 windValue=1
 activeOp op=sect miFrom=1 miTo=0 suFrom=0 suTo=0 result=0
 markDoneBinary id=1 (0,1 2,6 4,3 6,4) t=0 [0] (0,1) tEnd=0.5 newWindSum=1 newOppSum=0 oppSum=0 windSum=1 windValue=1
 markDoneBinary id=2 (6,4 0,1) t=0.492387914 [2] (3.04567242,2.52283621) tEnd=1 newWindSum=1 newOppSum=0 oppSum=0 windSum=1 windValue=1
 findChaseOp debugShowSort contourWinding=? oppContourWinding=? sign=-1
 debugShowSort [0] {{3,4}, {4,6}, {1,0}, {6,2}} tStart=0.580941393 tEnd=1 sign=-1 windValue=1 windSum=? ?->? (max=?) done=0 tiny=0 opp=0
 debugShowSort [1] {{6,4}, {0,1}} tStart=0.492387914 tEnd=1 sign=-1 windValue=1 windSum=1 ?->? (max=?) done=1 tiny=0 opp=1
 debugShowSort [2] {{3,4}, {4,6}, {1,0}, {6,2}} tStart=0.580941393 tEnd=0.333333333 sign=1 windValue=1 windSum=? ?->? (max=?) done=0 tiny=0 opp=0
 debugShowSort [3] {{6,4}, {0,1}} tStart=0.492387914 tEnd=0.285714286 sign=1 windValue=1 windSum=? ?->? (max=?) done=0 tiny=0 opp=1
 findChaseOp debugShowSort contourWinding=0 oppContourWinding=0 sign=-1
 debugShowSort [1] {{6,4}, {0,1}} tStart=0.492387914 tEnd=1 sign=-1 windValue=1 windSum=1 0->1 (max=1) done=1 tiny=0 opp=0
 debugShowSort [2] {{3,4}, {4,6}, {1,0}, {6,2}} tStart=0.580941393 tEnd=0.333333333 sign=1 windValue=1 windSum=? 0->-1 (max=-1) done=0 tiny=0 opp=1
 debugShowSort [3] {{6,4}, {0,1}} tStart=0.492387914 tEnd=0.285714286 sign=1 windValue=1 windSum=? 1->0 (max=1) done=0 tiny=0 opp=0
 debugShowSort [0] {{3,4}, {4,6}, {1,0}, {6,2}} tStart=0.580941393 tEnd=1 sign=-1 windValue=1 windSum=? -1->0 (max=-1) done=0 tiny=0 opp=1
 markWinding id=3 (3,4 4,6 1,0 6,2) t=0.333333333 [3] (3.11111116,3.92592597) tEnd=0.580941393 newWindSum=-1 newOppSum=1 oppSum=? windSum=? windValue=1
 markWinding id=2 (6,4 0,1) t=0.285714286 [1] (4.28571415,3.14285707) tEnd=0.492387914 newWindSum=1 newOppSum=-1 oppSum=? windSum=? windValue=1
 markWinding id=3 (3,4 4,6 1,0 6,2) t=0.580941393 [4] (3.04567242,2.52283621) tEnd=1 newWindSum=-1 newOppSum=0 oppSum=? windSum=? windValue=1
 markWinding id=4 (6,2 3,4) t=0 [0] (6,2) tEnd=0.571428571 newWindSum=-1 newOppSum=0 oppSum=? windSum=? windValue=1
 debugShowActiveSpans id=1 (0,1 2,6 4,3 6,4) t=0.5 (3,4) tEnd=0.521137715 other=4 otherT=1 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,1 2,6 4,3 6,4) t=0.521137715 (3.12682629,3.99743247) tEnd=1 other=3 otherT=0.317571165 otherIndex=2 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=2 (6,4 0,1) t=0 (6,4) tEnd=0.285714286 other=1 otherT=1 otherIndex=4 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=2 (6,4 0,1) t=0.285714286 (4.28571415,3.14285707) tEnd=0.492387914 other=4 otherT=0.571428571 otherIndex=1 windSum=1 windValue=1 oppValue=0
 debugShowActiveSpans id=3 (3,4 4,6 1,0 6,2) t=0 (3,4) tEnd=0.317571165 other=1 otherT=0.5 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (3,4 4,6 1,0 6,2) t=0.317571165 (3.12682629,3.99743247) tEnd=0.333333333 other=1 otherT=0.521137715 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (3,4 4,6 1,0 6,2) t=0.333333333 (3.11111116,3.92592597) tEnd=0.580941393 other=4 otherT=0.962962963 otherIndex=2 windSum=-1 windValue=1 oppValue=0
 debugShowActiveSpans id=3 (3,4 4,6 1,0 6,2) t=0.580941393 (3.04567242,2.52283621) tEnd=1 other=2 otherT=0.492387914 otherIndex=2 windSum=-1 windValue=1 oppValue=0
 debugShowActiveSpans id=4 (6,2 3,4) t=0 (6,2) tEnd=0.571428571 other=3 otherT=1 otherIndex=5 windSum=-1 windValue=1 oppValue=0
 debugShowActiveSpans id=4 (6,2 3,4) t=0.571428571 (4.28571415,3.14285707) tEnd=0.962962963 other=2 otherT=0.285714286 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=4 (6,2 3,4) t=0.962962963 (3.11111116,3.92592597) tEnd=1 other=3 otherT=0.333333333 otherIndex=3 windSum=? windValue=1 oppValue=0
 activeOp op=sect miFrom=1 miTo=1 suFrom=0 suTo=1 result=1
 findNextOp debugShowSort contourWinding=-1 oppContourWinding=1 sign=-1
 debugShowSort [1] {{3,4}, {4,6}, {1,0}, {6,2}} tStart=0.333333333 tEnd=0.580941393 sign=-1 windValue=1 windSum=-1 -1->0 (max=-1) done=0 tiny=0 opp=0
 debugShowSort [2] {{6,2}, {3,4}} tStart=0.962962963 tEnd=1 sign=-1 windValue=1 windSum=? 0->1 (max=1) done=0 tiny=0 opp=0
 debugShowSort [3] {{3,4}, {4,6}, {1,0}, {6,2}} tStart=0.333333333 tEnd=0.317571165 sign=1 windValue=1 windSum=? 1->0 (max=1) done=0 tiny=0 opp=0
 debugShowSort [0] {{6,2}, {3,4}} tStart=0.962962963 tEnd=0.571428571 sign=1 windValue=1 windSum=? 0->-1 (max=-1) done=0 tiny=0 opp=0
 findNextOp firstIndex=[1] sign=-1
 activeOp op=sect miFrom=1 miTo=1 suFrom=0 suTo=1 result=1
 markWinding id=4 (6,2 3,4) t=0.962962963 [2] (3.11111116,3.92592597) tEnd=1 newWindSum=1 newOppSum=1 oppSum=? windSum=? windValue=1
 findNextOp chase.append id=4
 activeOp op=sect miFrom=1 miTo=1 suFrom=1 suTo=0 result=1
 markWinding id=3 (3,4 4,6 1,0 6,2) t=0.317571165 [2] (3.12682629,3.99743247) tEnd=0.333333333 newWindSum=1 newOppSum=1 oppSum=? windSum=? windValue=1
 findNextOp chase.append id=3
 activeOp op=sect miFrom=1 miTo=1 suFrom=0 suTo=1 result=1
 markWinding id=4 (6,2 3,4) t=0.571428571 [1] (4.28571415,3.14285707) tEnd=0.962962963 newWindSum=-1 newOppSum=1 oppSum=? windSum=? windValue=1
 findNextOp chase.append id=4
 markDoneBinary id=3 (3,4 4,6 1,0 6,2) t=0.333333333 [3] (3.11111116,3.92592597) tEnd=0.580941393 newWindSum=-1 newOppSum=1 oppSum=1 windSum=-1 windValue=1
 findNextOp from:[3] to:[4] start=2 end=3
 bridgeOp current id=3 from=(3.04567242,2.52283621) to=(3.11111116,3.92592597)
 path.moveTo(3.04567242,2.52283621);
 path.cubicTo(2.9460392,2.99209714, 3.02857494,3.54075789, 3.11111116,3.92592597);
 markUnsortable id=4 (6,2 3,4) t=0.962962963 [2] (3.11111116,3.92592597) tEnd=1 newWindSum=0 windSum=1 windValue=1
 markUnsortable id=1 (0,1 2,6 4,3 6,4) t=0.5 [2] (3,4) tEnd=0.521137715 newWindSum=0 windSum=? windValue=1
 markUnsortable id=1 (0,1 2,6 4,3 6,4) t=0.5 [1] (3,4) tEnd=0.5 newWindSum=0 windSum=? windValue=1
 markUnsortable id=3 (3,4 4,6 1,0 6,2) t=0 [1] (3,4) tEnd=0.317571165 newWindSum=0 windSum=? windValue=1
 findNextOp debugShowSort contourWinding=1 oppContourWinding=1 sign=1
 debugShowSort [0] {{6,2}, {3,4}} tStart=1 tEnd=0.962962963 sign=1 windValue=1 windSum=1 1->0 (max=1) done=0 tiny=0 opp=0
 debugShowSort [1] {{0,1}, {2,6}, {4,3}, {6,4}} tStart=0.5 tEnd=0.521137715 sign=-1 windValue=1 windSum=? 1->2 (max=2) done=0 tiny=0 opp=1
 debugShowSort [2] *** UNSORTABLE *** {{0,1}, {2,6}, {4,3}, {6,4}} tStart=0.5 tEnd=0.5 sign=1 windValue=1 windSum=? 2->1 (max=2) done=1 tiny=1 opp=1
 debugShowSort [3] {{3,4}, {4,6}, {1,0}, {6,2}} tStart=0 tEnd=0.317571165 sign=-1 windValue=1 windSum=? 0->1 (max=1) done=0 tiny=0 opp=0
 markDoneBinary id=4 (6,2 3,4) t=0.962962963 [2] (3.11111116,3.92592597) tEnd=1 newWindSum=1 newOppSum=1 oppSum=1 windSum=1 windValue=1
 path.lineTo(3,4);
 debugShowActiveSpans id=1 (0,1 2,6 4,3 6,4) t=0.5 (3,4) tEnd=0.521137715 other=4 otherT=1 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,1 2,6 4,3 6,4) t=0.521137715 (3.12682629,3.99743247) tEnd=1 other=3 otherT=0.317571165 otherIndex=2 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=2 (6,4 0,1) t=0 (6,4) tEnd=0.285714286 other=1 otherT=1 otherIndex=4 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=2 (6,4 0,1) t=0.285714286 (4.28571415,3.14285707) tEnd=0.492387914 other=4 otherT=0.571428571 otherIndex=1 windSum=1 windValue=1 oppValue=0
 debugShowActiveSpans id=3 (3,4 4,6 1,0 6,2) t=0 (3,4) tEnd=0.317571165 other=1 otherT=0.5 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (3,4 4,6 1,0 6,2) t=0.317571165 (3.12682629,3.99743247) tEnd=0.333333333 other=1 otherT=0.521137715 otherIndex=3 windSum=1 windValue=1 oppValue=0
 debugShowActiveSpans id=3 (3,4 4,6 1,0 6,2) t=0.580941393 (3.04567242,2.52283621) tEnd=1 other=2 otherT=0.492387914 otherIndex=2 windSum=-1 windValue=1 oppValue=0
 debugShowActiveSpans id=4 (6,2 3,4) t=0 (6,2) tEnd=0.571428571 other=3 otherT=1 otherIndex=5 windSum=-1 windValue=1 oppValue=0
 debugShowActiveSpans id=4 (6,2 3,4) t=0.571428571 (4.28571415,3.14285707) tEnd=0.962962963 other=2 otherT=0.285714286 otherIndex=1 windSum=-1 windValue=1 oppValue=0
 activeOp op=sect miFrom=1 miTo=1 suFrom=1 suTo=0 result=1
 findNextOp debugShowSort contourWinding=0 oppContourWinding=1 sign=1
 debugShowSort [0] {{6,2}, {3,4}} tStart=0.962962963 tEnd=0.571428571 sign=1 windValue=1 windSum=-1 0->-1 (max=-1) done=0 tiny=0 opp=0
 debugShowSort [1] {{3,4}, {4,6}, {1,0}, {6,2}} tStart=0.333333333 tEnd=0.580941393 sign=-1 windValue=1 windSum=-1 -1->0 (max=-1) done=1 tiny=0 opp=0
 debugShowSort [2] {{6,2}, {3,4}} tStart=0.962962963 tEnd=1 sign=-1 windValue=1 windSum=1 0->1 (max=1) done=1 tiny=0 opp=0
 debugShowSort [3] {{3,4}, {4,6}, {1,0}, {6,2}} tStart=0.333333333 tEnd=0.317571165 sign=1 windValue=1 windSum=1 1->0 (max=1) done=0 tiny=0 opp=0
 findNextOp firstIndex=[0] sign=1
 activeOp op=sect miFrom=1 miTo=1 suFrom=1 suTo=0 result=1
 activeOp op=sect miFrom=1 miTo=1 suFrom=0 suTo=1 result=1
 activeOp op=sect miFrom=1 miTo=1 suFrom=1 suTo=0 result=1
 markDoneBinary id=4 (6,2 3,4) t=0.571428571 [1] (4.28571415,3.14285707) tEnd=0.962962963 newWindSum=-1 newOppSum=1 oppSum=1 windSum=-1 windValue=1
 findNextOp from:[4] to:[3] start=3 end=2
 bridgeOp current id=4 from=(4.28571415,3.14285707) to=(3.11111116,3.92592597)
 findNextOp debugShowSort contourWinding=0 oppContourWinding=1 sign=-1
 debugShowSort [1] {{3,4}, {4,6}, {1,0}, {6,2}} tStart=0.317571165 tEnd=0.333333333 sign=-1 windValue=1 windSum=1 0->1 (max=1) done=0 tiny=0 opp=0
 debugShowSort [2] {{0,1}, {2,6}, {4,3}, {6,4}} tStart=0.521137715 tEnd=0.5 sign=1 windValue=1 windSum=? 1->0 (max=1) done=0 tiny=0 opp=1
 debugShowSort [3] {{3,4}, {4,6}, {1,0}, {6,2}} tStart=0.317571165 tEnd=0 sign=1 windValue=1 windSum=? 1->0 (max=1) done=0 tiny=0 opp=0
 debugShowSort [0] {{0,1}, {2,6}, {4,3}, {6,4}} tStart=0.521137715 tEnd=1 sign=-1 windValue=1 windSum=? 0->1 (max=1) done=0 tiny=0 opp=1
 findNextOp firstIndex=[1] sign=-1
 activeOp op=sect miFrom=1 miTo=0 suFrom=1 suTo=1 result=1
 markWinding id=1 (0,1 2,6 4,3 6,4) t=0.5 [2] (3,4) tEnd=0.521137715 newWindSum=1 newOppSum=1 oppSum=? windSum=? windValue=1
 findNextOp chase.append id=1
 activeOp op=sect miFrom=0 miTo=0 suFrom=1 suTo=0 result=0
 markDoneBinary id=3 (3,4 4,6 1,0 6,2) t=0 [0] (3,4) tEnd=0 newWindSum=1 newOppSum=0 oppSum=? windSum=? windValue=1
 markDoneBinary id=3 (3,4 4,6 1,0 6,2) t=0 [1] (3,4) tEnd=0.317571165 newWindSum=1 newOppSum=0 oppSum=? windSum=? windValue=1
 findNextOp chase.append id=3
 activeOp op=sect miFrom=0 miTo=1 suFrom=0 suTo=0 result=0
 markDoneBinary id=1 (0,1 2,6 4,3 6,4) t=0.521137715 [3] (3.12682629,3.99743247) tEnd=1 newWindSum=1 newOppSum=0 oppSum=? windSum=? windValue=1
 markDoneBinary id=2 (6,4 0,1) t=0 [0] (6,4) tEnd=0.285714286 newWindSum=1 newOppSum=0 oppSum=? windSum=? windValue=1
 findNextOp chase.append id=2
 markDoneBinary id=3 (3,4 4,6 1,0 6,2) t=0.317571165 [2] (3.12682629,3.99743247) tEnd=0.333333333 newWindSum=1 newOppSum=1 oppSum=1 windSum=1 windValue=1
 findNextOp from:[3] to:[1] start=3 end=2
 bridgeOp current id=3 from=(3.11111116,3.92592597) to=(3.12682629,3.99743247)
 path.moveTo(4.28571415,3.14285707);
 path.lineTo(3.11111116,3.92592597);
 path.cubicTo(3.11636519,3.9504447, 3.12161922,3.97430134, 3.12682629,3.99743247);
 setSpans unsortable [2] (3,4) [3] (3.12682629,3.99743247)
 setSpans unsortable [3] (3,4) [2] (3.11111116,3.92592597)
 markUnsortable id=1 (0,1 2,6 4,3 6,4) t=0.5 [2] (3,4) tEnd=0.521137715 newWindSum=0 windSum=1 windValue=1
 markUnsortable id=1 (0,1 2,6 4,3 6,4) t=0.5 [1] (3,4) tEnd=0.5 newWindSum=0 windSum=? windValue=1
 markUnsortable id=4 (6,2 3,4) t=0.962962963 [2] (3.11111116,3.92592597) tEnd=1 newWindSum=0 windSum=1 windValue=1
 findNextOp debugShowSort contourWinding=0 oppContourWinding=1 sign=-1
 debugShowSort [0] *** UNSORTABLE *** {{0,1}, {2,6}, {4,3}, {6,4}} tStart=0.5 tEnd=0.521137715 sign=-1 windValue=1 windSum=1 0->1 (max=1) done=0 tiny=0 opp=0
 debugShowSort [1] *** UNSORTABLE *** {{0,1}, {2,6}, {4,3}, {6,4}} tStart=0.5 tEnd=0.5 sign=1 windValue=1 windSum=? 1->0 (max=1) done=1 tiny=1 opp=0
 debugShowSort [2] *** UNSORTABLE *** {{6,2}, {3,4}} tStart=1 tEnd=0.962962963 sign=1 windValue=1 windSum=1 1->0 (max=1) done=1 tiny=0 opp=1
 path.cubicTo(3.08455086,3.99910641, 3.04227543,4, 3,4);
 markDoneBinary id=1 (0,1 2,6 4,3 6,4) t=0.5 [2] (3,4) tEnd=0.521137715 newWindSum=1 newOppSum=1 oppSum=1 windSum=1 windValue=1
 debugShowActiveSpans id=2 (6,4 0,1) t=0.285714286 (4.28571415,3.14285707) tEnd=0.492387914 other=4 otherT=0.571428571 otherIndex=1 windSum=1 windValue=1 oppValue=0
 debugShowActiveSpans id=3 (3,4 4,6 1,0 6,2) t=0.580941393 (3.04567242,2.52283621) tEnd=1 other=2 otherT=0.492387914 otherIndex=2 windSum=-1 windValue=1 oppValue=0
 debugShowActiveSpans id=4 (6,2 3,4) t=0 (6,2) tEnd=0.571428571 other=3 otherT=1 otherIndex=5 windSum=-1 windValue=1 oppValue=0
 activeOp op=sect miFrom=0 miTo=1 suFrom=1 suTo=1 result=1
 findNextOp debugShowSort contourWinding=1 oppContourWinding=-1 sign=1
 debugShowSort [3] {{6,4}, {0,1}} tStart=0.492387914 tEnd=0.285714286 sign=1 windValue=1 windSum=1 1->0 (max=1) done=0 tiny=0 opp=0
 debugShowSort [0] {{3,4}, {4,6}, {1,0}, {6,2}} tStart=0.580941393 tEnd=1 sign=-1 windValue=1 windSum=-1 -1->0 (max=-1) done=0 tiny=0 opp=1
 debugShowSort [1] {{6,4}, {0,1}} tStart=0.492387914 tEnd=1 sign=-1 windValue=1 windSum=1 0->1 (max=1) done=1 tiny=0 opp=0
 debugShowSort [2] {{3,4}, {4,6}, {1,0}, {6,2}} tStart=0.580941393 tEnd=0.333333333 sign=1 windValue=1 windSum=-1 0->-1 (max=-1) done=1 tiny=0 opp=1
 findNextOp firstIndex=[3] sign=1
 activeOp op=sect miFrom=0 miTo=0 suFrom=1 suTo=0 result=0
 activeOp op=sect miFrom=0 miTo=1 suFrom=0 suTo=0 result=0
 activeOp op=sect miFrom=1 miTo=1 suFrom=0 suTo=1 result=1
 markDoneBinary id=2 (6,4 0,1) t=0.285714286 [1] (4.28571415,3.14285707) tEnd=0.492387914 newWindSum=1 newOppSum=-1 oppSum=-1 windSum=1 windValue=1
 findNextOp from:[2] to:[3] start=4 end=3
 bridgeOp current id=2 from=(4.28571415,3.14285707) to=(3.04567242,2.52283621)
 path.moveTo(4.28571415,3.14285707);
 path.lineTo(3.04567242,2.52283621);
 setSpans unsortable [1] (3,4) [2] (3.12682629,3.99743247)
 setSpans all tiny unsortable [1] (3,4) [0] (0,1)
 setSpans unsortable [3] (3,4) [2] (3.11111116,3.92592597)
 setSpans unsortable [2] (3,4) [3] (3.12682629,3.99743247)
 setSpans unsortable [1] (3,4) [2] (3.12682629,3.99743247)
 setSpans unsortable [3] (3,4) [2] (3.11111116,3.92592597)
 setSpans unsortable [3] (3,4) [2] (3.11111116,3.92592597)
 setSpans unsortable [2] (3,4) [3] (3.12682629,3.99743247)
 setSpans unsortable [1] (3,4) [2] (3.12682629,3.99743247)
 debugShowActiveSpans id=3 (3,4 4,6 1,0 6,2) t=0.580941393 (3.04567242,2.52283621) tEnd=1 other=2 otherT=0.492387914 otherIndex=2 windSum=-1 windValue=1 oppValue=0
 debugShowActiveSpans id=4 (6,2 3,4) t=0 (6,2) tEnd=0.571428571 other=3 otherT=1 otherIndex=5 windSum=-1 windValue=1 oppValue=0
 activeOp op=sect miFrom=0 miTo=0 suFrom=1 suTo=0 result=0
 markDoneBinary id=3 (3,4 4,6 1,0 6,2) t=0.580941393 [4] (3.04567242,2.52283621) tEnd=1 newWindSum=-1 newOppSum=0 oppSum=0 windSum=-1 windValue=1
 markDoneBinary id=4 (6,2 3,4) t=0 [0] (6,2) tEnd=0.571428571 newWindSum=-1 newOppSum=0 oppSum=0 windSum=-1 windValue=1
 </div>

 <div id="cubicOp42d">
   SimplifyNew_Test [cubicOp42d]
 {{0,1}, {1,2}, {6,5}, {5,4}},
 {{5,4}, {0,1}},
 op difference
 {{5,6}, {4,5}, {1,0}, {2,1}},
 {{2,1}, {5,6}},
 debugShowCubicIntersection no self intersect {{5,6}, {4,5}, {1,0}, {2,1}}
 debugShowCubicLineIntersection wtTs[0]=0 {{5,6}, {4,5}, {1,0}, {2,1}} {{5,6}} wtTs[1]=1 {{2,1}} wnTs[0]=1 {{2,1}, {5,6}} wnTs[1]=0
 debugShowCubicIntersection no intersect {{5,6}, {4,5}, {1,0}, {2,1}} {{0,1}, {1,2}, {6,5}, {5,4}}
 debugShowCubicLineIntersection wtTs[0]=0.520955385 {{5,6}, {4,5}, {1,0}, {2,1}} {{2.6570733652881806,2.5942440191729084}} wnTs[0]=0.468585 {{5,4}, {0,1}}
 debugShowCubicLineIntersection wtTs[0]=0.520955385 {{0,1}, {1,2}, {6,5}, {5,4}} {{3.4057559808270916,3.3429266347118194}} wnTs[0]=0.468585 {{2,1}, {5,6}}
 debugShowLineIntersection wtTs[0]=0.375 {{2,1}, {5,6}} {{3.125,2.875}} wnTs[0]=0.375 {{5,4}, {0,1}}
 debugShowCubicIntersection no self intersect {{0,1}, {1,2}, {6,5}, {5,4}}
 debugShowCubicLineIntersection wtTs[0]=0 {{0,1}, {1,2}, {6,5}, {5,4}} {{0,1}} wtTs[1]=1 {{5,4}} wnTs[0]=1 {{5,4}, {0,1}} wnTs[1]=0
 debugShowActiveSpans id=3 (5,6 4,5 1,0 2,1) t=0 (5,6) tEnd=0.520955385 other=4 otherT=1 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (5,6 4,5 1,0 2,1) t=0.520955385 (2.65707326,2.594244) tEnd=1 other=2 otherT=0.468585327 otherIndex=2 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=4 (2,1 5,6) t=0 (2,1) tEnd=0.375 other=3 otherT=1 otherIndex=2 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=4 (2,1 5,6) t=0.375 (3.125,2.875) tEnd=0.468585327 other=2 otherT=0.375 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=4 (2,1 5,6) t=0.468585327 (3.405756,3.34292674) tEnd=1 other=1 otherT=0.520955385 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,1 1,2 6,5 5,4) t=0 (0,1) tEnd=0.520955385 other=2 otherT=1 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,1 1,2 6,5 5,4) t=0.520955385 (3.405756,3.34292674) tEnd=1 other=4 otherT=0.468585327 otherIndex=2 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=2 (5,4 0,1) t=0 (5,4) tEnd=0.375 other=1 otherT=1 otherIndex=2 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=2 (5,4 0,1) t=0.375 (3.125,2.875) tEnd=0.468585327 other=4 otherT=0.375 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=2 (5,4 0,1) t=0.468585327 (2.65707326,2.594244) tEnd=1 other=3 otherT=0.520955385 otherIndex=1 windSum=? windValue=1 oppValue=0
 findTop debugShowSort contourWinding=0 oppContourWinding=0 sign=-1
 debugShowSort [0] {{0,1}, {1,2}, {6,5}, {5,4}} tStart=0 tEnd=0.520955385 sign=-1 windValue=1 windSum=? 0->1 (max=1) done=0 tiny=0 opp=0
 debugShowSort [1] {{5,4}, {0,1}} tStart=1 tEnd=0.468585327 sign=1 windValue=1 windSum=? 1->0 (max=1) done=0 tiny=0 opp=0
 findTop xyE=(0,1) xyS=(3.405756,3.34292674)
 findTop dxyE=(3,3) dxyS=(7.361094,4.36636353) cross=-8.98419189 bumpsUp=false
 markWinding id=1 (0,1 1,2 6,5 5,4) t=0 [0] (0,1) tEnd=0.520955385 newWindSum=1 newOppSum=0 oppSum=? windSum=? windValue=1
 markWinding id=2 (5,4 0,1) t=0.468585327 [2] (2.65707326,2.594244) tEnd=1 newWindSum=1 newOppSum=0 oppSum=? windSum=? windValue=1
 markWinding id=1 (0,1 1,2 6,5 5,4) t=0 [0] (0,1) tEnd=0.520955385 newWindSum=1 newOppSum=0 oppSum=0 windSum=1 windValue=1
 activeOp op=diff miFrom=1 miTo=0 suFrom=0 suTo=0 result=1
 findNextOp simple
 markDoneBinary id=1 (0,1 1,2 6,5 5,4) t=0 [0] (0,1) tEnd=0.520955385 newWindSum=1 newOppSum=0 oppSum=0 windSum=1 windValue=1
 bridgeOp current id=1 from=(3.405756,3.34292674) to=(0,1)
 path.moveTo(3.405756,3.34292674);
 path.cubicTo(2.12748885,2.58469963, 0.520955384,1.52095544, 0,1);
 findNextOp debugShowSort contourWinding=0 oppContourWinding=0 sign=-1
 debugShowSort [1] {{5,4}, {0,1}} tStart=0.468585327 tEnd=1 sign=-1 windValue=1 windSum=1 0->1 (max=1) done=0 tiny=0 opp=0
 debugShowSort [2] {{5,6}, {4,5}, {1,0}, {2,1}} tStart=0.520955385 tEnd=0 sign=1 windValue=1 windSum=? 0->-1 (max=-1) done=0 tiny=0 opp=1
 debugShowSort [3] {{5,4}, {0,1}} tStart=0.468585327 tEnd=0.375 sign=1 windValue=1 windSum=? 1->0 (max=1) done=0 tiny=0 opp=0
 debugShowSort [0] {{5,6}, {4,5}, {1,0}, {2,1}} tStart=0.520955385 tEnd=1 sign=-1 windValue=1 windSum=? -1->0 (max=-1) done=0 tiny=0 opp=1
 findNextOp firstIndex=[1] sign=-1
 activeOp op=diff miFrom=1 miTo=1 suFrom=0 suTo=1 result=1
 markWinding id=3 (5,6 4,5 1,0 2,1) t=0 [0] (5,6) tEnd=0.520955385 newWindSum=-1 newOppSum=1 oppSum=? windSum=? windValue=1
 markWinding id=4 (2,1 5,6) t=0.468585327 [2] (3.405756,3.34292674) tEnd=1 newWindSum=-1 newOppSum=1 oppSum=? windSum=? windValue=1
 findNextOp chase.append id=4
 activeOp op=diff miFrom=1 miTo=0 suFrom=1 suTo=1 result=0
 markDoneBinary id=2 (5,4 0,1) t=0.375 [1] (3.125,2.875) tEnd=0.468585327 newWindSum=1 newOppSum=-1 oppSum=? windSum=? windValue=1
 findNextOp chase.append id=2
 activeOp op=diff miFrom=0 miTo=0 suFrom=1 suTo=0 result=0
 markDoneBinary id=3 (5,6 4,5 1,0 2,1) t=0.520955385 [1] (2.65707326,2.594244) tEnd=1 newWindSum=-1 newOppSum=0 oppSum=? windSum=? windValue=1
 markDoneBinary id=4 (2,1 5,6) t=0 [0] (2,1) tEnd=0.375 newWindSum=-1 newOppSum=0 oppSum=? windSum=? windValue=1
 findNextOp chase.append id=4
 markDoneBinary id=2 (5,4 0,1) t=0.468585327 [2] (2.65707326,2.594244) tEnd=1 newWindSum=1 newOppSum=0 oppSum=0 windSum=1 windValue=1
 findNextOp from:[2] to:[3] start=1 end=0
 bridgeOp current id=2 from=(0,1) to=(2.65707326,2.594244)
 findNextOp simple
 markDoneBinary id=3 (5,6 4,5 1,0 2,1) t=0 [0] (5,6) tEnd=0.520955385 newWindSum=-1 newOppSum=1 oppSum=1 windSum=-1 windValue=1
 bridgeOp current id=3 from=(2.65707326,2.594244) to=(5,6)
 path.lineTo(2.65707326,2.594244);
 path.cubicTo(3.41530037,3.87251115, 4.47904444,5.47904444, 5,6);
 findNextOp debugShowSort contourWinding=-1 oppContourWinding=1 sign=-1
 debugShowSort [2] {{2,1}, {5,6}} tStart=0.468585327 tEnd=1 sign=-1 windValue=1 windSum=-1 -1->0 (max=-1) done=0 tiny=0 opp=0
 debugShowSort [3] {{0,1}, {1,2}, {6,5}, {5,4}} tStart=0.520955385 tEnd=1 sign=-1 windValue=1 windSum=? 1->2 (max=2) done=0 tiny=0 opp=1
 debugShowSort [0] {{2,1}, {5,6}} tStart=0.468585327 tEnd=0.375 sign=1 windValue=1 windSum=? 0->-1 (max=-1) done=0 tiny=0 opp=0
 debugShowSort [1] {{0,1}, {1,2}, {6,5}, {5,4}} tStart=0.520955385 tEnd=0 sign=1 windValue=1 windSum=1 2->1 (max=2) done=1 tiny=0 opp=1
 findNextOp firstIndex=[2] sign=-1
 activeOp op=diff miFrom=1 miTo=1 suFrom=0 suTo=0 result=0
 markDoneBinary id=1 (0,1 1,2 6,5 5,4) t=0.520955385 [1] (3.405756,3.34292674) tEnd=1 newWindSum=2 newOppSum=0 oppSum=? windSum=? windValue=1
 markDoneBinary id=2 (5,4 0,1) t=0 [0] (5,4) tEnd=0.375 newWindSum=2 newOppSum=0 oppSum=? windSum=? windValue=1
 findNextOp chase.append id=2
 activeOp op=diff miFrom=1 miTo=1 suFrom=0 suTo=1 result=1
 markWinding id=4 (2,1 5,6) t=0.375 [1] (3.125,2.875) tEnd=0.468585327 newWindSum=-1 newOppSum=2 oppSum=? windSum=? windValue=1
 findNextOp chase.append id=4
 activeOp op=diff miFrom=1 miTo=1 suFrom=1 suTo=1 result=0
 markDoneBinary id=4 (2,1 5,6) t=0.468585327 [2] (3.405756,3.34292674) tEnd=1 newWindSum=-1 newOppSum=1 oppSum=1 windSum=-1 windValue=1
 findNextOp from:[4] to:[4] start=2 end=1
 bridgeOp current id=4 from=(5,6) to=(3.405756,3.34292674)
 path.lineTo(3.405756,3.34292674);
 path.close();
 debugShowActiveSpans id=4 (2,1 5,6) t=0.375 (3.125,2.875) tEnd=0.468585327 other=2 otherT=0.375 otherIndex=1 windSum=-1 windValue=1 oppValue=0
 activeOp op=diff miFrom=1 miTo=1 suFrom=1 suTo=0 result=1
 findNextOp debugShowSort contourWinding=0 oppContourWinding=2 sign=1
 debugShowSort [0] {{2,1}, {5,6}} tStart=0.468585327 tEnd=0.375 sign=1 windValue=1 windSum=-1 0->-1 (max=-1) done=0 tiny=0 opp=0
 debugShowSort [1] {{0,1}, {1,2}, {6,5}, {5,4}} tStart=0.520955385 tEnd=0 sign=1 windValue=1 windSum=1 2->1 (max=2) done=1 tiny=0 opp=1
 debugShowSort [2] {{2,1}, {5,6}} tStart=0.468585327 tEnd=1 sign=-1 windValue=1 windSum=-1 -1->0 (max=-1) done=1 tiny=0 opp=0
 debugShowSort [3] {{0,1}, {1,2}, {6,5}, {5,4}} tStart=0.520955385 tEnd=1 sign=-1 windValue=1 windSum=2 1->2 (max=2) done=1 tiny=0 opp=1
 findNextOp firstIndex=[0] sign=1
 activeOp op=diff miFrom=1 miTo=1 suFrom=1 suTo=1 result=0
 activeOp op=diff miFrom=1 miTo=1 suFrom=1 suTo=0 result=1
 activeOp op=diff miFrom=1 miTo=1 suFrom=0 suTo=0 result=0
 markDoneBinary id=4 (2,1 5,6) t=0.375 [1] (3.125,2.875) tEnd=0.468585327 newWindSum=-1 newOppSum=2 oppSum=2 windSum=-1 windValue=1
 findNextOp from:[4] to:[4] start=2 end=3
 bridgeOp current id=4 from=(3.125,2.875) to=(3.405756,3.34292674)
 </div>

 <div id="cubicOp42da">
 computed quadratics given
   {{0,1}, {1,2}, {6,5}, {5,4}},
   {{5,6}, {4,5}, {1,0}, {2,1}},
 computed quadratics set 1
   {{0,1}, {0.4140625,1.3984375}, {1.34375,2.03125}},
   {{1.34375,2.03125}, {2.2734375,2.6640625}, {3.25,3.25}},
   {{3.25,3.25}, {4.2265625,3.8359375}, {4.78125,4.09375}},
   {{4.78125,4.09375}, {5.3359375,4.3515625}, {5,4}},
 computed quadratics set 2
   {{5,6}, {4.6015625,5.5859375}, {3.96875,4.65625}},
   {{3.96875,4.65625}, {3.3359375,3.7265625}, {2.75,2.75}},
   {{2.75,2.75}, {2.1640625,1.7734375}, {1.90625,1.21875}},
   {{1.90625,1.21875}, {1.6484375,0.6640625}, {2,1}},
 </div>

 <div id="cubicOp42db">
   {{1.34375,2.03125}, {2.2734375,2.6640625}, {3.25,3.25}},
   {{3.96875,4.65625}, {3.3359375,3.7265625}, {2.75,2.75}},
 </div>

 <div id="cubicOp43d">
   SimplifyNew_Test [cubicOp43d]
 {{0,2}, {1,2}, {4,0}, {3,1}},
 {{3,1}, {0,2}},
 op difference
 {{0,4}, {1,3}, {2,0}, {2,1}},
 {{2,1}, {0,4}},
 debugShowCubicIntersection no self intersect {{0,2}, {1,2}, {4,0}, {3,1}}
 debugShowCubicLineIntersection wtTs[0]=0 {{0,2}, {1,2}, {4,0}, {3,1}} {{0,2}} wtTs[1]=0.333333333 {{1.4444444444444446,1.5185185185185186}} wtTs[2]=1 {{3,1}} wnTs[0]=1 {{3,1}, {0,2}} wnTs[1]=0.518518519 wnTs[2]=0
 debugShowCubicIntersection wtTs[0]=0.345547542 {{0,2}, {1,2}, {4,0}, {3,1}} {{1.5055045552472988,1.4898786220870244}} wnTs[0]=0.560544 {{0,4}, {1,3}, {2,0}, {2,1}}
 debugShowCubicLineIntersection wtTs[0]=0.395188999 {{0,2}, {1,2}, {4,0}, {3,1}} {{1.7523027701818603,1.3715458447272095}} wnTs[0]=0.123849 {{2,1}, {0,4}}
 debugShowCubicLineIntersection wtTs[0]=0.558102564 {{0,4}, {1,3}, {2,0}, {2,1}} {{1.5004707573680853,1.4998430808773049}} wnTs[0]=0.499843 {{3,1}, {0,2}}
 debugShowLineIntersection wtTs[0]=0.428571429 {{3,1}, {0,2}} {{1.7142857142857142,1.4285714285714284}} wnTs[0]=0.142857 {{2,1}, {0,4}}
 debugShowCubicIntersection no self intersect {{0,4}, {1,3}, {2,0}, {2,1}}
 debugShowCubicLineIntersection wtTs[0]=0 {{0,4}, {1,3}, {2,0}, {2,1}} {{0,4}} wtTs[1]=0.333333333 {{0.96296296296296258,2.5555555555555562}} wtTs[2]=1 {{2,1}} wnTs[0]=1 {{2,1}, {0,4}} wnTs[1]=0.518518519 wnTs[2]=0
 debugShowActiveSpans id=1 (0,2 1,2 4,0 3,1) t=0 (0,2) tEnd=0.333333333 other=2 otherT=1 otherIndex=4 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,2 1,2 4,0 3,1) t=0.333333333 (1.44444442,1.51851857) tEnd=0.345547542 other=2 otherT=0.518518519 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,2 1,2 4,0 3,1) t=0.345547542 (1.50550461,1.48987865) tEnd=0.395188999 other=3 otherT=0.560544414 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,2 1,2 4,0 3,1) t=0.395188999 (1.75230277,1.37154579) tEnd=1 other=4 otherT=0.123848615 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=2 (3,1 0,2) t=0 (3,1) tEnd=0.428571429 other=1 otherT=1 otherIndex=4 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=2 (3,1 0,2) t=0.428571429 (1.71428573,1.42857146) tEnd=0.499843081 other=4 otherT=0.142857143 otherIndex=2 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=2 (3,1 0,2) t=0.499843081 (1.50047076,1.49984312) tEnd=0.518518519 other=3 otherT=0.558102564 otherIndex=2 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=2 (3,1 0,2) t=0.518518519 (1.44444442,1.51851857) tEnd=1 other=1 otherT=0.333333333 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (0,4 1,3 2,0 2,1) t=0 (0,4) tEnd=0.333333333 other=4 otherT=1 otherIndex=4 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (0,4 1,3 2,0 2,1) t=0.333333333 (0.962962985,2.55555558) tEnd=0.558102564 other=4 otherT=0.518518519 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (0,4 1,3 2,0 2,1) t=0.558102564 (1.50047076,1.49984312) tEnd=0.560544414 other=2 otherT=0.499843081 otherIndex=2 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (0,4 1,3 2,0 2,1) t=0.560544414 (1.50550461,1.48987865) tEnd=1 other=1 otherT=0.345547542 otherIndex=2 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=4 (2,1 0,4) t=0 (2,1) tEnd=0.123848615 other=3 otherT=1 otherIndex=4 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=4 (2,1 0,4) t=0.123848615 (1.75230277,1.37154579) tEnd=0.142857143 other=1 otherT=0.395188999 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=4 (2,1 0,4) t=0.142857143 (1.71428573,1.42857146) tEnd=0.518518519 other=2 otherT=0.428571429 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=4 (2,1 0,4) t=0.518518519 (0.962962985,2.55555558) tEnd=1 other=3 otherT=0.333333333 otherIndex=1 windSum=? windValue=1 oppValue=0
 findTop debugShowSort contourWinding=0 oppContourWinding=0 sign=1
 debugShowSort [0] {{0,2}, {1,2}, {4,0}, {3,1}} tStart=1 tEnd=0.395188999 sign=1 windValue=1 windSum=? 0->-1 (max=-1) done=0 tiny=0 opp=0
 debugShowSort [1] {{3,1}, {0,2}} tStart=0 tEnd=0.428571429 sign=-1 windValue=1 windSum=? -1->0 (max=-1) done=0 tiny=0 opp=0
 findTop xyE=(3,1) xyS=(1.75230277,1.37154579)
 findTop dxyE=(-3,3) dxyS=(4.93112993,-2.39965272) cross=-7.59443188 bumpsUp=true
 findTop cross bump disagree
 findTop swap
 markWinding id=1 (0,2 1,2 4,0 3,1) t=0.395188999 [3] (1.75230277,1.37154579) tEnd=1 newWindSum=1 newOppSum=0 oppSum=? windSum=? windValue=1
 markWinding id=1 (0,2 1,2 4,0 3,1) t=0.395188999 [3] (1.75230277,1.37154579) tEnd=1 newWindSum=1 newOppSum=0 oppSum=0 windSum=1 windValue=1
 markWinding id=2 (3,1 0,2) t=0 [0] (3,1) tEnd=0.428571429 newWindSum=1 newOppSum=0 oppSum=? windSum=? windValue=1
 activeOp op=diff miFrom=1 miTo=0 suFrom=0 suTo=0 result=1
 findNextOp debugShowSort contourWinding=0 oppContourWinding=0 sign=-1
 debugShowSort [0] {{0,2}, {1,2}, {4,0}, {3,1}} tStart=0.395188999 tEnd=1 sign=-1 windValue=1 windSum=1 0->1 (max=1) done=0 tiny=0 opp=0
 debugShowSort [1] {{2,1}, {0,4}} tStart=0.123848615 tEnd=0 sign=1 windValue=1 windSum=? 0->-1 (max=-1) done=0 tiny=0 opp=1
 debugShowSort [2] {{0,2}, {1,2}, {4,0}, {3,1}} tStart=0.395188999 tEnd=0.345547542 sign=1 windValue=1 windSum=? 1->0 (max=1) done=0 tiny=0 opp=0
 debugShowSort [3] {{2,1}, {0,4}} tStart=0.123848615 tEnd=0.142857143 sign=-1 windValue=1 windSum=? -1->0 (max=-1) done=0 tiny=0 opp=1
 findNextOp firstIndex=[0] sign=-1
 activeOp op=diff miFrom=1 miTo=1 suFrom=0 suTo=1 result=1
 markWinding id=4 (2,1 0,4) t=0 [0] (2,1) tEnd=0.123848615 newWindSum=-1 newOppSum=1 oppSum=? windSum=? windValue=1
 markWinding id=3 (0,4 1,3 2,0 2,1) t=0.560544414 [3] (1.50550461,1.48987865) tEnd=1 newWindSum=-1 newOppSum=1 oppSum=? windSum=? windValue=1
 findNextOp chase.append id=3
 activeOp op=diff miFrom=1 miTo=0 suFrom=1 suTo=1 result=0
 markDoneBinary id=1 (0,2 1,2 4,0 3,1) t=0.345547542 [2] (1.50550461,1.48987865) tEnd=0.395188999 newWindSum=1 newOppSum=-1 oppSum=? windSum=? windValue=1
 findNextOp chase.append id=1
 activeOp op=diff miFrom=0 miTo=0 suFrom=1 suTo=0 result=0
 markDoneBinary id=4 (2,1 0,4) t=0.123848615 [1] (1.75230277,1.37154579) tEnd=0.142857143 newWindSum=-1 newOppSum=0 oppSum=? windSum=? windValue=1
 findNextOp chase.append id=4
 markDoneBinary id=1 (0,2 1,2 4,0 3,1) t=0.395188999 [3] (1.75230277,1.37154579) tEnd=1 newWindSum=1 newOppSum=0 oppSum=0 windSum=1 windValue=1
 findNextOp from:[1] to:[4] start=1 end=0
 bridgeOp current id=1 from=(3,1) to=(1.75230277,1.37154579)
 path.moveTo(3,1);
 path.cubicTo(3.60481095,0.395188987, 2.7464366,0.887767076, 1.75230277,1.37154579);
 findNextOp simple
 markDoneBinary id=4 (2,1 0,4) t=0 [0] (2,1) tEnd=0.123848615 newWindSum=-1 newOppSum=1 oppSum=1 windSum=-1 windValue=1
 bridgeOp current id=4 from=(1.75230277,1.37154579) to=(2,1)
 findNextOp debugShowSort contourWinding=-1 oppContourWinding=1 sign=-1
 debugShowSort [1] {{0,4}, {1,3}, {2,0}, {2,1}} tStart=0.560544414 tEnd=1 sign=-1 windValue=1 windSum=-1 -1->0 (max=-1) done=0 tiny=0 opp=0
 debugShowSort [2] {{0,2}, {1,2}, {4,0}, {3,1}} tStart=0.345547542 tEnd=0.333333333 sign=1 windValue=1 windSum=? 1->0 (max=1) done=0 tiny=0 opp=1
 debugShowSort [3] {{0,4}, {1,3}, {2,0}, {2,1}} tStart=0.560544414 tEnd=0.558102564 sign=1 windValue=1 windSum=? 0->-1 (max=-1) done=0 tiny=0 opp=0
 debugShowSort [0] {{0,2}, {1,2}, {4,0}, {3,1}} tStart=0.345547542 tEnd=0.395188999 sign=-1 windValue=1 windSum=1 0->1 (max=1) done=1 tiny=0 opp=1
 findNextOp firstIndex=[1] sign=-1
 activeOp op=diff miFrom=1 miTo=0 suFrom=0 suTo=0 result=1
 markWinding id=1 (0,2 1,2 4,0 3,1) t=0.333333333 [1] (1.44444442,1.51851857) tEnd=0.345547542 newWindSum=1 newOppSum=0 oppSum=? windSum=? windValue=1
 findNextOp chase.append id=1
 activeOp op=diff miFrom=0 miTo=0 suFrom=0 suTo=1 result=0
 markDoneBinary id=3 (0,4 1,3 2,0 2,1) t=0.558102564 [2] (1.50047076,1.49984312) tEnd=0.560544414 newWindSum=-1 newOppSum=0 oppSum=? windSum=? windValue=1
 findNextOp chase.append id=3
 activeOp op=diff miFrom=0 miTo=1 suFrom=1 suTo=1 result=0
 markDoneBinary id=3 (0,4 1,3 2,0 2,1) t=0.560544414 [3] (1.50550461,1.48987865) tEnd=1 newWindSum=-1 newOppSum=1 oppSum=1 windSum=-1 windValue=1
 findNextOp from:[3] to:[1] start=2 end=1
 bridgeOp current id=3 from=(2,1) to=(1.50550461,1.48987865)
 path.lineTo(2,1);
 path.cubicTo(2,0.560544431, 1.80687881,0.893573642, 1.50550461,1.48987865);
 findNextOp debugShowSort contourWinding=0 oppContourWinding=0 sign=-1
 debugShowSort [1] {{0,2}, {1,2}, {4,0}, {3,1}} tStart=0.333333333 tEnd=0.345547542 sign=-1 windValue=1 windSum=1 0->1 (max=1) done=0 tiny=0 opp=0
 debugShowSort [2] {{3,1}, {0,2}} tStart=0.518518519 tEnd=1 sign=-1 windValue=1 windSum=? 1->2 (max=2) done=0 tiny=0 opp=0
 debugShowSort [3] {{0,2}, {1,2}, {4,0}, {3,1}} tStart=0.333333333 tEnd=0 sign=1 windValue=1 windSum=? 2->1 (max=2) done=0 tiny=0 opp=0
 debugShowSort [0] {{3,1}, {0,2}} tStart=0.518518519 tEnd=0.499843081 sign=1 windValue=1 windSum=? 1->0 (max=1) done=0 tiny=0 opp=0
 findNextOp firstIndex=[1] sign=-1
 activeOp op=diff miFrom=1 miTo=1 suFrom=0 suTo=0 result=0
 markDoneBinary id=2 (3,1 0,2) t=0.518518519 [3] (1.44444442,1.51851857) tEnd=1 newWindSum=2 newOppSum=0 oppSum=? windSum=? windValue=1
 markDoneBinary id=1 (0,2 1,2 4,0 3,1) t=0 [0] (0,2) tEnd=0.333333333 newWindSum=2 newOppSum=0 oppSum=? windSum=? windValue=1
 findNextOp chase.append id=1
 activeOp op=diff miFrom=1 miTo=1 suFrom=0 suTo=0 result=0
 activeOp op=diff miFrom=1 miTo=0 suFrom=0 suTo=0 result=1
 markWinding id=2 (3,1 0,2) t=0.499843081 [2] (1.50047076,1.49984312) tEnd=0.518518519 newWindSum=1 newOppSum=0 oppSum=? windSum=? windValue=1
 findNextOp chase.append id=2
 markDoneBinary id=1 (0,2 1,2 4,0 3,1) t=0.333333333 [1] (1.44444442,1.51851857) tEnd=0.345547542 newWindSum=1 newOppSum=0 oppSum=0 windSum=1 windValue=1
 findNextOp from:[1] to:[2] start=3 end=2
 bridgeOp current id=1 from=(1.50550461,1.48987865) to=(1.44444442,1.51851857)
 path.cubicTo(1.48515844,1.49946892, 1.46480155,1.50901854, 1.44444442,1.51851857);
 findNextOp debugShowSort contourWinding=0 oppContourWinding=0 sign=-1
 debugShowSort [2] {{3,1}, {0,2}} tStart=0.499843081 tEnd=0.518518519 sign=-1 windValue=1 windSum=1 0->1 (max=1) done=0 tiny=0 opp=0
 debugShowSort [3] {{0,4}, {1,3}, {2,0}, {2,1}} tStart=0.558102564 tEnd=0.333333333 sign=1 windValue=1 windSum=? 0->-1 (max=-1) done=0 tiny=0 opp=1
 debugShowSort [0] {{3,1}, {0,2}} tStart=0.499843081 tEnd=0.428571429 sign=1 windValue=1 windSum=? 1->0 (max=1) done=0 tiny=0 opp=0
 debugShowSort [1] {{0,4}, {1,3}, {2,0}, {2,1}} tStart=0.558102564 tEnd=0.560544414 sign=-1 windValue=1 windSum=-1 -1->0 (max=-1) done=1 tiny=0 opp=1
 findNextOp firstIndex=[2] sign=-1
 activeOp op=diff miFrom=1 miTo=1 suFrom=0 suTo=1 result=1
 markWinding id=3 (0,4 1,3 2,0 2,1) t=0.333333333 [1] (0.962962985,2.55555558) tEnd=0.558102564 newWindSum=-1 newOppSum=1 oppSum=? windSum=? windValue=1
 findNextOp chase.append id=3
 activeOp op=diff miFrom=1 miTo=0 suFrom=1 suTo=1 result=0
 markDoneBinary id=2 (3,1 0,2) t=0.428571429 [1] (1.71428573,1.42857146) tEnd=0.499843081 newWindSum=1 newOppSum=-1 oppSum=? windSum=? windValue=1
 findNextOp chase.append id=2
 activeOp op=diff miFrom=0 miTo=0 suFrom=1 suTo=0 result=0
 markDoneBinary id=2 (3,1 0,2) t=0.499843081 [2] (1.50047076,1.49984312) tEnd=0.518518519 newWindSum=1 newOppSum=0 oppSum=0 windSum=1 windValue=1
 findNextOp from:[2] to:[3] start=2 end=1
 bridgeOp current id=2 from=(1.44444442,1.51851857) to=(1.50047076,1.49984312)
 findNextOp debugShowSort contourWinding=-1 oppContourWinding=1 sign=-1
 debugShowSort [1] {{0,4}, {1,3}, {2,0}, {2,1}} tStart=0.333333333 tEnd=0.558102564 sign=-1 windValue=1 windSum=-1 -1->0 (max=-1) done=0 tiny=0 opp=0
 debugShowSort [2] {{2,1}, {0,4}} tStart=0.518518519 tEnd=1 sign=-1 windValue=1 windSum=? 0->1 (max=1) done=0 tiny=0 opp=0
 debugShowSort [3] {{0,4}, {1,3}, {2,0}, {2,1}} tStart=0.333333333 tEnd=0 sign=1 windValue=1 windSum=? 1->0 (max=1) done=0 tiny=0 opp=0
 debugShowSort [0] {{2,1}, {0,4}} tStart=0.518518519 tEnd=0.142857143 sign=1 windValue=1 windSum=? 0->-1 (max=-1) done=0 tiny=0 opp=0
 findNextOp firstIndex=[1] sign=-1
 activeOp op=diff miFrom=1 miTo=1 suFrom=0 suTo=1 result=1
 markWinding id=4 (2,1 0,4) t=0.518518519 [3] (0.962962985,2.55555558) tEnd=1 newWindSum=1 newOppSum=1 oppSum=? windSum=? windValue=1
 markWinding id=3 (0,4 1,3 2,0 2,1) t=0 [0] (0,4) tEnd=0.333333333 newWindSum=1 newOppSum=1 oppSum=? windSum=? windValue=1
 findNextOp chase.append id=3
 activeOp op=diff miFrom=1 miTo=1 suFrom=1 suTo=0 result=1
 activeOp op=diff miFrom=1 miTo=1 suFrom=0 suTo=1 result=1
 markWinding id=4 (2,1 0,4) t=0.142857143 [2] (1.71428573,1.42857146) tEnd=0.518518519 newWindSum=-1 newOppSum=1 oppSum=? windSum=? windValue=1
 findNextOp chase.append id=4
 markDoneBinary id=3 (0,4 1,3 2,0 2,1) t=0.333333333 [1] (0.962962985,2.55555558) tEnd=0.558102564 newWindSum=-1 newOppSum=1 oppSum=1 windSum=-1 windValue=1
 findNextOp from:[3] to:[4] start=3 end=4
 bridgeOp current id=3 from=(1.50047076,1.49984312) to=(0.962962985,2.55555558)
 path.lineTo(1.50047076,1.49984312);
 path.cubicTo(1.3457123,1.80632472, 1.16275787,2.18094015, 0.962962985,2.55555558);
 findNextOp simple
 markDoneBinary id=4 (2,1 0,4) t=0.518518519 [3] (0.962962985,2.55555558) tEnd=1 newWindSum=1 newOppSum=1 oppSum=1 windSum=1 windValue=1
 bridgeOp current id=4 from=(0.962962985,2.55555558) to=(0,4)
 findNextOp debugShowSort contourWinding=1 oppContourWinding=1 sign=1
 debugShowSort [3] {{0,4}, {1,3}, {2,0}, {2,1}} tStart=0.333333333 tEnd=0 sign=1 windValue=1 windSum=1 1->0 (max=1) done=0 tiny=0 opp=0
 debugShowSort [0] {{2,1}, {0,4}} tStart=0.518518519 tEnd=0.142857143 sign=1 windValue=1 windSum=-1 0->-1 (max=-1) done=0 tiny=0 opp=0
 debugShowSort [1] {{0,4}, {1,3}, {2,0}, {2,1}} tStart=0.333333333 tEnd=0.558102564 sign=-1 windValue=1 windSum=-1 -1->0 (max=-1) done=1 tiny=0 opp=0
 debugShowSort [2] {{2,1}, {0,4}} tStart=0.518518519 tEnd=1 sign=-1 windValue=1 windSum=1 0->1 (max=1) done=1 tiny=0 opp=0
 findNextOp firstIndex=[3] sign=1
 activeOp op=diff miFrom=1 miTo=1 suFrom=0 suTo=1 result=1
 activeOp op=diff miFrom=1 miTo=1 suFrom=1 suTo=0 result=1
 activeOp op=diff miFrom=1 miTo=1 suFrom=0 suTo=1 result=1
 markDoneBinary id=3 (0,4 1,3 2,0 2,1) t=0 [0] (0,4) tEnd=0.333333333 newWindSum=1 newOppSum=1 oppSum=1 windSum=1 windValue=1
 findNextOp from:[3] to:[4] start=3 end=2
 bridgeOp current id=3 from=(0,4) to=(0.962962985,2.55555558)
 path.lineTo(0,4);
 path.cubicTo(0.333333343,3.66666675, 0.666666627,3.11111116, 0.962962985,2.55555558);
 findNextOp debugShowSort contourWinding=-1 oppContourWinding=1 sign=-1
 debugShowSort [3] {{2,1}, {0,4}} tStart=0.142857143 tEnd=0.518518519 sign=-1 windValue=1 windSum=-1 -1->0 (max=-1) done=0 tiny=0 opp=0
 debugShowSort [0] {{3,1}, {0,2}} tStart=0.428571429 tEnd=0 sign=1 windValue=1 windSum=1 1->0 (max=1) done=0 tiny=0 opp=1
 debugShowSort [1] {{2,1}, {0,4}} tStart=0.142857143 tEnd=0.123848615 sign=1 windValue=1 windSum=-1 0->-1 (max=-1) done=1 tiny=0 opp=0
 debugShowSort [2] {{3,1}, {0,2}} tStart=0.428571429 tEnd=0.499843081 sign=-1 windValue=1 windSum=1 0->1 (max=1) done=1 tiny=0 opp=1
 findNextOp firstIndex=[3] sign=-1
 activeOp op=diff miFrom=1 miTo=0 suFrom=0 suTo=0 result=1
 activeOp op=diff miFrom=0 miTo=0 suFrom=0 suTo=1 result=0
 activeOp op=diff miFrom=0 miTo=1 suFrom=1 suTo=1 result=0
 markDoneBinary id=4 (2,1 0,4) t=0.142857143 [2] (1.71428573,1.42857146) tEnd=0.518518519 newWindSum=-1 newOppSum=1 oppSum=1 windSum=-1 windValue=1
 findNextOp from:[4] to:[2] start=1 end=0
 bridgeOp current id=4 from=(0.962962985,2.55555558) to=(1.71428573,1.42857146)
 findNextOp simple
 markDoneBinary id=2 (3,1 0,2) t=0 [0] (3,1) tEnd=0.428571429 newWindSum=1 newOppSum=0 oppSum=0 windSum=1 windValue=1
 bridgeOp current id=2 from=(1.71428573,1.42857146) to=(3,1)
 path.lineTo(1.71428573,1.42857146);
 path.lineTo(3,1);
 path.close();
 assemble
 assemble contour    start=(3,1) end=(3,1)
 </div>

 <div id="cubicOp44d">
   SimplifyNew_Test [cubicOp44d]
 {{0,2}, {3,6}, {4,0}, {3,2}},
 {{3,2}, {0,2}},
 op difference
 {{0,4}, {2,3}, {2,0}, {6,3}},
 {{6,3}, {0,4}},
 debugShowCubicIntersection no self intersect {{0,2}, {3,6}, {4,0}, {3,2}}
 debugShowCubicLineIntersection wtTs[0]=0 {{0,2}, {3,6}, {4,0}, {3,2}} {{0,2}} wtTs[1]=1 {{3,2}} wnTs[0]=1 {{3,2}, {0,2}} wnTs[1]=0
 debugShowCubicIntersection wtTs[0]=0.135342164 {{0,2}, {3,6}, {4,0}, {3,2}} {{1.1081744689414279,3.1192052729330815}} wtTs[1]=0.754165096 {{3.3748959118747366,1.708000079031383}} wtTs[2]=0.93333707 {{3.1733251116708114,1.7013446943452044}} wnTs[0]=0.223477 {{0,4}, {2,3}, {2,0}, {6,3}} wnTs[1]=0.708782366 wnTs[2]=0.67692927
 debugShowCubicLineIntersection no intersect {{0,2}, {3,6}, {4,0}, {3,2}} {{6,3}, {0,4}}
 debugShowCubicLineIntersection wtTs[0]=0.5 {{0,4}, {2,3}, {2,0}, {6,3}} {{2.25,2}} wnTs[0]=0.25 {{3,2}, {0,2}}
 debugShowCubicIntersection no self intersect {{0,4}, {2,3}, {2,0}, {6,3}}
 debugShowCubicLineIntersection wtTs[0]=0 {{0,4}, {2,3}, {2,0}, {6,3}} {{0,4}} wtTs[1]=1 {{6,3}} wnTs[0]=1 {{6,3}, {0,4}} wnTs[1]=0
 debugShowActiveSpans id=1 (0,2 3,6 4,0 3,2) t=0 (0,2) tEnd=0.135342164 other=2 otherT=1 otherIndex=2 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,2 3,6 4,0 3,2) t=0.135342164 (1.10817444,3.11920524) tEnd=0.754165096 other=3 otherT=0.223476766 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,2 3,6 4,0 3,2) t=0.754165096 (3.37489581,1.70800006) tEnd=0.93333707 other=3 otherT=0.708782366 otherIndex=4 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,2 3,6 4,0 3,2) t=0.93333707 (3.17332506,1.70134473) tEnd=1 other=3 otherT=0.67692927 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=2 (3,2 0,2) t=0 (3,2) tEnd=0.25 other=1 otherT=1 otherIndex=4 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=2 (3,2 0,2) t=0.25 (2.25,2) tEnd=1 other=3 otherT=0.5 otherIndex=2 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (0,4 2,3 2,0 6,3) t=0 (0,4) tEnd=0.223476766 other=4 otherT=1 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (0,4 2,3 2,0 6,3) t=0.223476766 (1.10817444,3.11920524) tEnd=0.5 other=1 otherT=0.135342164 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (0,4 2,3 2,0 6,3) t=0.5 (2.25,2) tEnd=0.67692927 other=2 otherT=0.25 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (0,4 2,3 2,0 6,3) t=0.67692927 (3.17332506,1.70134473) tEnd=0.708782366 other=1 otherT=0.93333707 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (0,4 2,3 2,0 6,3) t=0.708782366 (3.37489581,1.70800006) tEnd=1 other=1 otherT=0.754165096 otherIndex=2 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=4 (6,3 0,4) t=0 (6,3) tEnd=1 other=3 otherT=1 otherIndex=5 windSum=? windValue=1 oppValue=0
 findTop debugShowSort contourWinding=0 oppContourWinding=0 sign=-1
 debugShowSort [0] {{0,4}, {2,3}, {2,0}, {6,3}} tStart=0.67692927 tEnd=0.708782366 sign=-1 windValue=1 windSum=? 0->1 (max=1) done=0 tiny=0 opp=0
 debugShowSort [1] {{0,2}, {3,6}, {4,0}, {3,2}} tStart=0.93333707 tEnd=0.754165096 sign=1 windValue=1 windSum=? 0->-1 (max=-1) done=0 tiny=0 opp=1
 debugShowSort [2] {{0,4}, {2,3}, {2,0}, {6,3}} tStart=0.67692927 tEnd=0.5 sign=1 windValue=1 windSum=? 1->0 (max=1) done=0 tiny=0 opp=0
 debugShowSort [3] {{0,2}, {3,6}, {4,0}, {3,2}} tStart=0.93333707 tEnd=1 sign=-1 windValue=1 windSum=? -1->0 (max=-1) done=0 tiny=0 opp=1
 findTop swap
 markWinding id=3 (0,4 2,3 2,0 6,3) t=0.67692927 [3] (3.17332506,1.70134473) tEnd=0.708782366 newWindSum=-1 newOppSum=0 oppSum=? windSum=? windValue=1
 markWinding id=3 (0,4 2,3 2,0 6,3) t=0.67692927 [3] (3.17332506,1.70134473) tEnd=0.708782366 newWindSum=-1 newOppSum=0 oppSum=0 windSum=-1 windValue=1
 activeOp op=diff miFrom=0 miTo=0 suFrom=1 suTo=0 result=0
 markDoneBinary id=3 (0,4 2,3 2,0 6,3) t=0.67692927 [3] (3.17332506,1.70134473) tEnd=0.708782366 newWindSum=-1 newOppSum=0 oppSum=0 windSum=-1 windValue=1
 findChaseOp debugShowSort contourWinding=? oppContourWinding=? sign=-1
 debugShowSort [0] {{0,2}, {3,6}, {4,0}, {3,2}} tStart=0.754165096 tEnd=0.93333707 sign=-1 windValue=1 windSum=? ?->? (max=?) done=0 tiny=0 opp=0
 debugShowSort [1] {{0,4}, {2,3}, {2,0}, {6,3}} tStart=0.708782366 tEnd=0.67692927 sign=1 windValue=1 windSum=-1 ?->? (max=?) done=1 tiny=0 opp=1
 debugShowSort [2] {{0,2}, {3,6}, {4,0}, {3,2}} tStart=0.754165096 tEnd=0.135342164 sign=1 windValue=1 windSum=? ?->? (max=?) done=0 tiny=0 opp=0
 debugShowSort [3] {{0,4}, {2,3}, {2,0}, {6,3}} tStart=0.708782366 tEnd=1 sign=-1 windValue=1 windSum=? ?->? (max=?) done=0 tiny=0 opp=1
 findChaseOp debugShowSort contourWinding=0 oppContourWinding=0 sign=1
 debugShowSort [1] {{0,4}, {2,3}, {2,0}, {6,3}} tStart=0.708782366 tEnd=0.67692927 sign=1 windValue=1 windSum=-1 0->-1 (max=-1) done=1 tiny=0 opp=0
 debugShowSort [2] {{0,2}, {3,6}, {4,0}, {3,2}} tStart=0.754165096 tEnd=0.135342164 sign=1 windValue=1 windSum=? 0->-1 (max=-1) done=0 tiny=0 opp=1
 debugShowSort [3] {{0,4}, {2,3}, {2,0}, {6,3}} tStart=0.708782366 tEnd=1 sign=-1 windValue=1 windSum=? -1->0 (max=-1) done=0 tiny=0 opp=0
 debugShowSort [0] {{0,2}, {3,6}, {4,0}, {3,2}} tStart=0.754165096 tEnd=0.93333707 sign=-1 windValue=1 windSum=? -1->0 (max=-1) done=0 tiny=0 opp=1
 markWinding id=1 (0,2 3,6 4,0 3,2) t=0.135342164 [1] (1.10817444,3.11920524) tEnd=0.754165096 newWindSum=-1 newOppSum=-1 oppSum=? windSum=? windValue=1
 markWinding id=3 (0,4 2,3 2,0 6,3) t=0.708782366 [4] (3.37489581,1.70800006) tEnd=1 newWindSum=-1 newOppSum=-1 oppSum=? windSum=? windValue=1
 markWinding id=4 (6,3 0,4) t=0 [0] (6,3) tEnd=1 newWindSum=-1 newOppSum=-1 oppSum=? windSum=? windValue=1
 markWinding id=3 (0,4 2,3 2,0 6,3) t=0 [0] (0,4) tEnd=0.223476766 newWindSum=-1 newOppSum=-1 oppSum=? windSum=? windValue=1
 markWinding id=1 (0,2 3,6 4,0 3,2) t=0.754165096 [2] (3.37489581,1.70800006) tEnd=0.93333707 newWindSum=-1 newOppSum=0 oppSum=? windSum=? windValue=1
 debugShowActiveSpans id=1 (0,2 3,6 4,0 3,2) t=0 (0,2) tEnd=0.135342164 other=2 otherT=1 otherIndex=2 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,2 3,6 4,0 3,2) t=0.135342164 (1.10817444,3.11920524) tEnd=0.754165096 other=3 otherT=0.223476766 otherIndex=1 windSum=-1 windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,2 3,6 4,0 3,2) t=0.754165096 (3.37489581,1.70800006) tEnd=0.93333707 other=3 otherT=0.708782366 otherIndex=4 windSum=-1 windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,2 3,6 4,0 3,2) t=0.93333707 (3.17332506,1.70134473) tEnd=1 other=3 otherT=0.67692927 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=2 (3,2 0,2) t=0 (3,2) tEnd=0.25 other=1 otherT=1 otherIndex=4 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=2 (3,2 0,2) t=0.25 (2.25,2) tEnd=1 other=3 otherT=0.5 otherIndex=2 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (0,4 2,3 2,0 6,3) t=0 (0,4) tEnd=0.223476766 other=4 otherT=1 otherIndex=1 windSum=-1 windValue=1 oppValue=0
 debugShowActiveSpans id=3 (0,4 2,3 2,0 6,3) t=0.223476766 (1.10817444,3.11920524) tEnd=0.5 other=1 otherT=0.135342164 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (0,4 2,3 2,0 6,3) t=0.5 (2.25,2) tEnd=0.67692927 other=2 otherT=0.25 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (0,4 2,3 2,0 6,3) t=0.708782366 (3.37489581,1.70800006) tEnd=1 other=1 otherT=0.754165096 otherIndex=2 windSum=-1 windValue=1 oppValue=0
 debugShowActiveSpans id=4 (6,3 0,4) t=0 (6,3) tEnd=1 other=3 otherT=1 otherIndex=5 windSum=-1 windValue=1 oppValue=0
 activeOp op=diff miFrom=0 miTo=1 suFrom=1 suTo=1 result=0
 markDoneBinary id=1 (0,2 3,6 4,0 3,2) t=0.135342164 [1] (1.10817444,3.11920524) tEnd=0.754165096 newWindSum=-1 newOppSum=-1 oppSum=-1 windSum=-1 windValue=1
 debugShowActiveSpans id=1 (0,2 3,6 4,0 3,2) t=0 (0,2) tEnd=0.135342164 other=2 otherT=1 otherIndex=2 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,2 3,6 4,0 3,2) t=0.754165096 (3.37489581,1.70800006) tEnd=0.93333707 other=3 otherT=0.708782366 otherIndex=4 windSum=-1 windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,2 3,6 4,0 3,2) t=0.93333707 (3.17332506,1.70134473) tEnd=1 other=3 otherT=0.67692927 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=2 (3,2 0,2) t=0 (3,2) tEnd=0.25 other=1 otherT=1 otherIndex=4 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=2 (3,2 0,2) t=0.25 (2.25,2) tEnd=1 other=3 otherT=0.5 otherIndex=2 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (0,4 2,3 2,0 6,3) t=0 (0,4) tEnd=0.223476766 other=4 otherT=1 otherIndex=1 windSum=-1 windValue=1 oppValue=0
 debugShowActiveSpans id=3 (0,4 2,3 2,0 6,3) t=0.223476766 (1.10817444,3.11920524) tEnd=0.5 other=1 otherT=0.135342164 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (0,4 2,3 2,0 6,3) t=0.5 (2.25,2) tEnd=0.67692927 other=2 otherT=0.25 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (0,4 2,3 2,0 6,3) t=0.708782366 (3.37489581,1.70800006) tEnd=1 other=1 otherT=0.754165096 otherIndex=2 windSum=-1 windValue=1 oppValue=0
 debugShowActiveSpans id=4 (6,3 0,4) t=0 (6,3) tEnd=1 other=3 otherT=1 otherIndex=5 windSum=-1 windValue=1 oppValue=0
 activeOp op=diff miFrom=1 miTo=1 suFrom=0 suTo=1 result=1
 findNextOp simple
 markDoneBinary id=3 (0,4 2,3 2,0 6,3) t=0 [0] (0,4) tEnd=0.223476766 newWindSum=-1 newOppSum=-1 oppSum=-1 windSum=-1 windValue=1
 bridgeOp current id=3 from=(1.10817444,3.11920524) to=(0,4)
 path.moveTo(1.10817444,3.11920524);
 path.cubicTo(0.794023395,3.45316267, 0.446953505,3.77652311, 0,4);
 findNextOp simple
 markDoneBinary id=4 (6,3 0,4) t=0 [0] (6,3) tEnd=1 newWindSum=-1 newOppSum=-1 oppSum=-1 windSum=-1 windValue=1
 bridgeOp current id=4 from=(0,4) to=(6,3)
 findNextOp debugShowSort contourWinding=-1 oppContourWinding=-1 sign=-1
 debugShowSort [3] {{0,4}, {2,3}, {2,0}, {6,3}} tStart=0.708782366 tEnd=1 sign=-1 windValue=1 windSum=-1 -1->0 (max=-1) done=0 tiny=0 opp=0
 debugShowSort [0] {{0,2}, {3,6}, {4,0}, {3,2}} tStart=0.754165096 tEnd=0.93333707 sign=-1 windValue=1 windSum=-1 -1->0 (max=-1) done=0 tiny=0 opp=1
 debugShowSort [1] {{0,4}, {2,3}, {2,0}, {6,3}} tStart=0.708782366 tEnd=0.67692927 sign=1 windValue=1 windSum=-1 0->-1 (max=-1) done=1 tiny=0 opp=0
 debugShowSort [2] {{0,2}, {3,6}, {4,0}, {3,2}} tStart=0.754165096 tEnd=0.135342164 sign=1 windValue=1 windSum=-1 0->-1 (max=-1) done=1 tiny=0 opp=1
 findNextOp firstIndex=[3] sign=-1
 activeOp op=diff miFrom=1 miTo=0 suFrom=0 suTo=0 result=1
 activeOp op=diff miFrom=0 miTo=0 suFrom=0 suTo=1 result=0
 activeOp op=diff miFrom=0 miTo=1 suFrom=1 suTo=1 result=0
 markDoneBinary id=3 (0,4 2,3 2,0 6,3) t=0.708782366 [4] (3.37489581,1.70800006) tEnd=1 newWindSum=-1 newOppSum=-1 oppSum=-1 windSum=-1 windValue=1
 findNextOp from:[3] to:[1] start=2 end=3
 bridgeOp current id=3 from=(6,3) to=(3.37489581,1.70800006)
 path.lineTo(6,3);
 path.cubicTo(4.83512926,2.12634706, 4.00949001,1.76154041, 3.37489581,1.70800006);
 findNextOp debugShowSort contourWinding=0 oppContourWinding=0 sign=1
 debugShowSort [1] {{0,2}, {3,6}, {4,0}, {3,2}} tStart=0.93333707 tEnd=0.754165096 sign=1 windValue=1 windSum=-1 0->-1 (max=-1) done=0 tiny=0 opp=0
 debugShowSort [2] {{0,4}, {2,3}, {2,0}, {6,3}} tStart=0.67692927 tEnd=0.5 sign=1 windValue=1 windSum=? 0->-1 (max=-1) done=0 tiny=0 opp=1
 debugShowSort [3] {{0,2}, {3,6}, {4,0}, {3,2}} tStart=0.93333707 tEnd=1 sign=-1 windValue=1 windSum=? -1->0 (max=-1) done=0 tiny=0 opp=0
 debugShowSort [0] {{0,4}, {2,3}, {2,0}, {6,3}} tStart=0.67692927 tEnd=0.708782366 sign=-1 windValue=1 windSum=-1 -1->0 (max=-1) done=1 tiny=0 opp=1
 findNextOp firstIndex=[1] sign=1
 activeOp op=diff miFrom=1 miTo=1 suFrom=0 suTo=1 result=1
 markWinding id=3 (0,4 2,3 2,0 6,3) t=0.5 [2] (2.25,2) tEnd=0.67692927 newWindSum=-1 newOppSum=-1 oppSum=? windSum=? windValue=1
 findNextOp chase.append id=3
 activeOp op=diff miFrom=1 miTo=0 suFrom=1 suTo=1 result=0
 markDoneBinary id=1 (0,2 3,6 4,0 3,2) t=0.93333707 [3] (3.17332506,1.70134473) tEnd=1 newWindSum=-1 newOppSum=-1 oppSum=? windSum=? windValue=1
 markDoneBinary id=2 (3,2 0,2) t=0 [0] (3,2) tEnd=0.25 newWindSum=-1 newOppSum=-1 oppSum=? windSum=? windValue=1
 findNextOp chase.append id=2
 activeOp op=diff miFrom=0 miTo=0 suFrom=1 suTo=0 result=0
 markDoneBinary id=1 (0,2 3,6 4,0 3,2) t=0.754165096 [2] (3.37489581,1.70800006) tEnd=0.93333707 newWindSum=-1 newOppSum=0 oppSum=0 windSum=-1 windValue=1
 findNextOp from:[1] to:[3] start=3 end=2
 bridgeOp current id=1 from=(3.37489581,1.70800006) to=(3.17332506,1.70134473)
 path.cubicTo(3.37191081,1.55650449, 3.30472064,1.51977468, 3.17332506,1.70134473);
 findNextOp debugShowSort contourWinding=-1 oppContourWinding=-1 sign=-1
 debugShowSort [0] {{0,4}, {2,3}, {2,0}, {6,3}} tStart=0.5 tEnd=0.67692927 sign=-1 windValue=1 windSum=-1 -1->0 (max=-1) done=0 tiny=0 opp=0
 debugShowSort [1] {{3,2}, {0,2}} tStart=0.25 tEnd=1 sign=-1 windValue=1 windSum=? -1->0 (max=-1) done=0 tiny=0 opp=1
 debugShowSort [2] {{0,4}, {2,3}, {2,0}, {6,3}} tStart=0.5 tEnd=0.223476766 sign=1 windValue=1 windSum=? 0->-1 (max=-1) done=0 tiny=0 opp=0
 debugShowSort [3] {{3,2}, {0,2}} tStart=0.25 tEnd=0 sign=1 windValue=1 windSum=-1 0->-1 (max=-1) done=1 tiny=0 opp=1
 findNextOp firstIndex=[0] sign=-1
 activeOp op=diff miFrom=1 miTo=0 suFrom=0 suTo=0 result=1
 markWinding id=2 (3,2 0,2) t=0.25 [1] (2.25,2) tEnd=1 newWindSum=-1 newOppSum=0 oppSum=? windSum=? windValue=1
 markWinding id=1 (0,2 3,6 4,0 3,2) t=0 [0] (0,2) tEnd=0.135342164 newWindSum=-1 newOppSum=0 oppSum=? windSum=? windValue=1
 findNextOp chase.append id=1
 activeOp op=diff miFrom=0 miTo=0 suFrom=0 suTo=1 result=0
 markDoneBinary id=3 (0,4 2,3 2,0 6,3) t=0.223476766 [1] (1.10817444,3.11920524) tEnd=0.5 newWindSum=-1 newOppSum=0 oppSum=? windSum=? windValue=1
 findNextOp chase.append id=3
 activeOp op=diff miFrom=0 miTo=1 suFrom=1 suTo=1 result=0
 markDoneBinary id=3 (0,4 2,3 2,0 6,3) t=0.5 [2] (2.25,2) tEnd=0.67692927 newWindSum=-1 newOppSum=-1 oppSum=-1 windSum=-1 windValue=1
 findNextOp from:[3] to:[2] start=1 end=2
 bridgeOp current id=3 from=(3.17332506,1.70134473) to=(2.25,2)
 path.cubicTo(2.81209183,1.70874941, 2.51539397,1.82307076, 2.25,2);
 findNextOp simple
 markDoneBinary id=2 (3,2 0,2) t=0.25 [1] (2.25,2) tEnd=1 newWindSum=-1 newOppSum=0 oppSum=0 windSum=-1 windValue=1
 bridgeOp current id=2 from=(2.25,2) to=(0,2)
 findNextOp debugShowSort contourWinding=0 oppContourWinding=0 sign=1
 debugShowSort [1] {{0,2}, {3,6}, {4,0}, {3,2}} tStart=0.135342164 tEnd=0 sign=1 windValue=1 windSum=-1 0->-1 (max=-1) done=0 tiny=0 opp=0
 debugShowSort [2] {{0,4}, {2,3}, {2,0}, {6,3}} tStart=0.223476766 tEnd=0 sign=1 windValue=1 windSum=-1 0->-1 (max=-1) done=1 tiny=0 opp=1
 debugShowSort [3] {{0,2}, {3,6}, {4,0}, {3,2}} tStart=0.135342164 tEnd=0.754165096 sign=-1 windValue=1 windSum=-1 -1->0 (max=-1) done=1 tiny=0 opp=0
 debugShowSort [0] {{0,4}, {2,3}, {2,0}, {6,3}} tStart=0.223476766 tEnd=0.5 sign=-1 windValue=1 windSum=-1 -1->0 (max=-1) done=1 tiny=0 opp=1
 findNextOp firstIndex=[1] sign=1
 activeOp op=diff miFrom=1 miTo=1 suFrom=0 suTo=1 result=1
 activeOp op=diff miFrom=1 miTo=0 suFrom=1 suTo=1 result=0
 activeOp op=diff miFrom=0 miTo=0 suFrom=1 suTo=0 result=0
 markDoneBinary id=1 (0,2 3,6 4,0 3,2) t=0 [0] (0,2) tEnd=0.135342164 newWindSum=-1 newOppSum=0 oppSum=0 windSum=-1 windValue=1
 findNextOp from:[1] to:[3] start=1 end=0
 bridgeOp current id=1 from=(0,2) to=(1.10817444,3.11920524)
 path.lineTo(0,2);
 path.cubicTo(0.406026483,2.54136872, 0.775417984,2.89956236, 1.10817444,3.11920524);
 path.close();
 assemble
 assemble contour    start=(1.10817444,3.11920524) end=(1.10817444,3.11920524)
 </div>

 <div id="cubicOp45d">
   SimplifyNew_Test [cubicOp45d]
 {{0,2}, {2,4}, {4,0}, {3,2}},
 {{3,2}, {0,2}},
 op difference
 {{0,4}, {2,3}, {2,0}, {4,2}},
 {{4,2}, {0,4}},
 debugShowCubicIntersection no self intersect {{0,4}, {2,3}, {2,0}, {4,2}}
 debugShowCubicLineIntersection wtTs[0]=0 {{0,4}, {2,3}, {2,0}, {4,2}} {{0,4}} wtTs[1]=1 {{4,2}} wnTs[0]=1 {{4,2}, {0,4}} wnTs[1]=0
 debugShowCubicIntersection wtTs[0]=0.341662805 {{0,4}, {2,3}, {2,0}, {4,2}} {{1.5091099386066631,2.5537951499735922}} wtTs[1]=0.856247521 {{3.2495913270767485,1.4266624658205882}} wtTs[2]=0.859816875 {{3.2657899721435943,1.4343874043112959}} wnTs[0]=0.260341 {{0,2}, {2,4}, {4,0}, {3,2}} wnTs[1]=0.768795564 wnTs[2]=0.821660252
 debugShowCubicLineIntersection wtTs[0]=0.467845317 {{0,4}, {2,3}, {2,0}, {4,2}} {{1.9034029684653309,1.9999999999999998}} wnTs[0]=0.365532 {{3,2}, {0,2}}
 debugShowCubicLineIntersection no intersect {{0,2}, {2,4}, {4,0}, {3,2}} {{4,2}, {0,4}}
 debugShowLineIntersection no intersect {{4,2}, {0,4}} {{3,2}, {0,2}}
 debugShowCubicIntersection no self intersect {{0,2}, {2,4}, {4,0}, {3,2}}
 debugShowCubicLineIntersection wtTs[0]=0 {{0,2}, {2,4}, {4,0}, {3,2}} {{0,2}} wtTs[1]=0.5 {{2.625,2}} wtTs[2]=1 {{3,2}} wnTs[0]=1 {{3,2}, {0,2}} wnTs[1]=0.125 wnTs[2]=0
 debugShowActiveSpans id=3 (0,4 2,3 2,0 4,2) t=0 (0,4) tEnd=0.341662805 other=4 otherT=1 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (0,4 2,3 2,0 4,2) t=0.341662805 (1.50910997,2.5537951) tEnd=0.467845317 other=1 otherT=0.260340927 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (0,4 2,3 2,0 4,2) t=0.467845317 (1.90340292,2) tEnd=0.856247521 other=2 otherT=0.365532344 otherIndex=2 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (0,4 2,3 2,0 4,2) t=0.856247521 (3.24959135,1.42666245) tEnd=0.859816875 other=1 otherT=0.768795564 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (0,4 2,3 2,0 4,2) t=0.859816875 (3.26578999,1.43438745) tEnd=1 other=1 otherT=0.821660252 otherIndex=4 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=4 (4,2 0,4) t=0 (4,2) tEnd=1 other=3 otherT=1 otherIndex=5 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,2 2,4 4,0 3,2) t=0 (0,2) tEnd=0.260340927 other=2 otherT=1 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,2 2,4 4,0 3,2) t=0.260340927 (1.50910997,2.5537951) tEnd=0.5 other=3 otherT=0.341662805 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,2 2,4 4,0 3,2) t=0.5 (2.625,2) tEnd=0.768795564 other=2 otherT=0.125 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,2 2,4 4,0 3,2) t=0.768795564 (3.24959135,1.42666245) tEnd=0.821660252 other=3 otherT=0.856247521 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,2 2,4 4,0 3,2) t=0.821660252 (3.26578999,1.43438745) tEnd=1 other=3 otherT=0.859816875 otherIndex=4 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=2 (3,2 0,2) t=0 (3,2) tEnd=0.125 other=1 otherT=1 otherIndex=5 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=2 (3,2 0,2) t=0.125 (2.625,2) tEnd=0.365532344 other=1 otherT=0.5 otherIndex=2 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=2 (3,2 0,2) t=0.365532344 (1.90340292,2) tEnd=1 other=3 otherT=0.467845317 otherIndex=2 windSum=? windValue=1 oppValue=0
 findTop debugShowSort contourWinding=0 oppContourWinding=0 sign=1
 debugShowSort [1] {{0,4}, {2,3}, {2,0}, {4,2}} tStart=0.859816875 tEnd=0.856247521 sign=1 windValue=1 windSum=? 0->-1 (max=-1) done=0 tiny=0 opp=0
 debugShowSort [2] {{0,2}, {2,4}, {4,0}, {3,2}} tStart=0.821660252 tEnd=1 sign=-1 windValue=1 windSum=? 0->1 (max=1) done=0 tiny=0 opp=1
 debugShowSort [3] {{0,4}, {2,3}, {2,0}, {4,2}} tStart=0.859816875 tEnd=1 sign=-1 windValue=1 windSum=? -1->0 (max=-1) done=0 tiny=0 opp=0
 debugShowSort [0] {{0,2}, {2,4}, {4,0}, {3,2}} tStart=0.821660252 tEnd=0.768795564 sign=1 windValue=1 windSum=? 1->0 (max=1) done=0 tiny=0 opp=1
 markWinding id=3 (0,4 2,3 2,0 4,2) t=0.856247521 [3] (3.24959135,1.42666245) tEnd=0.859816875 newWindSum=-1 newOppSum=0 oppSum=? windSum=? windValue=1
 markWinding id=3 (0,4 2,3 2,0 4,2) t=0.856247521 [3] (3.24959135,1.42666245) tEnd=0.859816875 newWindSum=-1 newOppSum=0 oppSum=0 windSum=-1 windValue=1
 activeOp op=diff miFrom=0 miTo=0 suFrom=1 suTo=0 result=0
 markDoneBinary id=3 (0,4 2,3 2,0 4,2) t=0.856247521 [3] (3.24959135,1.42666245) tEnd=0.859816875 newWindSum=-1 newOppSum=0 oppSum=0 windSum=-1 windValue=1
 findChaseOp debugShowSort contourWinding=? oppContourWinding=? sign=1
 debugShowSort [0] {{0,2}, {2,4}, {4,0}, {3,2}} tStart=0.821660252 tEnd=0.768795564 sign=1 windValue=1 windSum=? ?->? (max=?) done=0 tiny=0 opp=0
 debugShowSort [1] {{0,4}, {2,3}, {2,0}, {4,2}} tStart=0.859816875 tEnd=0.856247521 sign=1 windValue=1 windSum=-1 ?->? (max=?) done=1 tiny=0 opp=1
 debugShowSort [2] {{0,2}, {2,4}, {4,0}, {3,2}} tStart=0.821660252 tEnd=1 sign=-1 windValue=1 windSum=? ?->? (max=?) done=0 tiny=0 opp=0
 debugShowSort [3] {{0,4}, {2,3}, {2,0}, {4,2}} tStart=0.859816875 tEnd=1 sign=-1 windValue=1 windSum=? ?->? (max=?) done=0 tiny=0 opp=1
 findChaseOp debugShowSort contourWinding=0 oppContourWinding=0 sign=1
 debugShowSort [1] {{0,4}, {2,3}, {2,0}, {4,2}} tStart=0.859816875 tEnd=0.856247521 sign=1 windValue=1 windSum=-1 0->-1 (max=-1) done=1 tiny=0 opp=0
 debugShowSort [2] {{0,2}, {2,4}, {4,0}, {3,2}} tStart=0.821660252 tEnd=1 sign=-1 windValue=1 windSum=? 0->1 (max=1) done=0 tiny=0 opp=1
 debugShowSort [3] {{0,4}, {2,3}, {2,0}, {4,2}} tStart=0.859816875 tEnd=1 sign=-1 windValue=1 windSum=? -1->0 (max=-1) done=0 tiny=0 opp=0
 debugShowSort [0] {{0,2}, {2,4}, {4,0}, {3,2}} tStart=0.821660252 tEnd=0.768795564 sign=1 windValue=1 windSum=? 1->0 (max=1) done=0 tiny=0 opp=1
 markWinding id=1 (0,2 2,4 4,0 3,2) t=0.821660252 [4] (3.26578999,1.43438745) tEnd=1 newWindSum=1 newOppSum=-1 oppSum=? windSum=? windValue=1
 markWinding id=2 (3,2 0,2) t=0 [0] (3,2) tEnd=0.125 newWindSum=1 newOppSum=-1 oppSum=? windSum=? windValue=1
 markWinding id=3 (0,4 2,3 2,0 4,2) t=0.859816875 [4] (3.26578999,1.43438745) tEnd=1 newWindSum=-1 newOppSum=1 oppSum=? windSum=? windValue=1
 markWinding id=4 (4,2 0,4) t=0 [0] (4,2) tEnd=1 newWindSum=-1 newOppSum=1 oppSum=? windSum=? windValue=1
 markWinding id=3 (0,4 2,3 2,0 4,2) t=0 [0] (0,4) tEnd=0.341662805 newWindSum=-1 newOppSum=1 oppSum=? windSum=? windValue=1
 markWinding id=1 (0,2 2,4 4,0 3,2) t=0.768795564 [3] (3.24959135,1.42666245) tEnd=0.821660252 newWindSum=1 newOppSum=0 oppSum=? windSum=? windValue=1
 debugShowActiveSpans id=3 (0,4 2,3 2,0 4,2) t=0 (0,4) tEnd=0.341662805 other=4 otherT=1 otherIndex=1 windSum=-1 windValue=1 oppValue=0
 debugShowActiveSpans id=3 (0,4 2,3 2,0 4,2) t=0.341662805 (1.50910997,2.5537951) tEnd=0.467845317 other=1 otherT=0.260340927 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (0,4 2,3 2,0 4,2) t=0.467845317 (1.90340292,2) tEnd=0.856247521 other=2 otherT=0.365532344 otherIndex=2 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (0,4 2,3 2,0 4,2) t=0.859816875 (3.26578999,1.43438745) tEnd=1 other=1 otherT=0.821660252 otherIndex=4 windSum=-1 windValue=1 oppValue=0
 debugShowActiveSpans id=4 (4,2 0,4) t=0 (4,2) tEnd=1 other=3 otherT=1 otherIndex=5 windSum=-1 windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,2 2,4 4,0 3,2) t=0 (0,2) tEnd=0.260340927 other=2 otherT=1 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,2 2,4 4,0 3,2) t=0.260340927 (1.50910997,2.5537951) tEnd=0.5 other=3 otherT=0.341662805 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,2 2,4 4,0 3,2) t=0.5 (2.625,2) tEnd=0.768795564 other=2 otherT=0.125 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,2 2,4 4,0 3,2) t=0.768795564 (3.24959135,1.42666245) tEnd=0.821660252 other=3 otherT=0.856247521 otherIndex=3 windSum=1 windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,2 2,4 4,0 3,2) t=0.821660252 (3.26578999,1.43438745) tEnd=1 other=3 otherT=0.859816875 otherIndex=4 windSum=1 windValue=1 oppValue=0
 debugShowActiveSpans id=2 (3,2 0,2) t=0 (3,2) tEnd=0.125 other=1 otherT=1 otherIndex=5 windSum=1 windValue=1 oppValue=0
 debugShowActiveSpans id=2 (3,2 0,2) t=0.125 (2.625,2) tEnd=0.365532344 other=1 otherT=0.5 otherIndex=2 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=2 (3,2 0,2) t=0.365532344 (1.90340292,2) tEnd=1 other=3 otherT=0.467845317 otherIndex=2 windSum=? windValue=1 oppValue=0
 activeOp op=diff miFrom=0 miTo=1 suFrom=1 suTo=1 result=0
 markDoneBinary id=1 (0,2 2,4 4,0 3,2) t=0.821660252 [4] (3.26578999,1.43438745) tEnd=1 newWindSum=1 newOppSum=-1 oppSum=-1 windSum=1 windValue=1
 markDoneBinary id=2 (3,2 0,2) t=0 [0] (3,2) tEnd=0.125 newWindSum=1 newOppSum=-1 oppSum=-1 windSum=1 windValue=1
 findChaseOp debugShowSort contourWinding=? oppContourWinding=? sign=-1
 debugShowSort [0] {{0,2}, {2,4}, {4,0}, {3,2}} tStart=0.5 tEnd=0.768795564 sign=-1 windValue=1 windSum=? ?->? (max=?) done=0 tiny=0 opp=0
 debugShowSort [1] {{3,2}, {0,2}} tStart=0.125 tEnd=0.365532344 sign=-1 windValue=1 windSum=? ?->? (max=?) done=0 tiny=0 opp=0
 debugShowSort [2] {{0,2}, {2,4}, {4,0}, {3,2}} tStart=0.5 tEnd=0.260340927 sign=1 windValue=1 windSum=? ?->? (max=?) done=0 tiny=0 opp=0
 debugShowSort [3] {{3,2}, {0,2}} tStart=0.125 tEnd=0 sign=1 windValue=1 windSum=1 ?->? (max=?) done=1 tiny=0 opp=0
 findChaseOp debugShowSort contourWinding=1 oppContourWinding=-1 sign=1
 debugShowSort [3] {{3,2}, {0,2}} tStart=0.125 tEnd=0 sign=1 windValue=1 windSum=1 1->0 (max=1) done=1 tiny=0 opp=0
 debugShowSort [0] {{0,2}, {2,4}, {4,0}, {3,2}} tStart=0.5 tEnd=0.768795564 sign=-1 windValue=1 windSum=? 0->1 (max=1) done=0 tiny=0 opp=0
 debugShowSort [1] {{3,2}, {0,2}} tStart=0.125 tEnd=0.365532344 sign=-1 windValue=1 windSum=? 1->2 (max=2) done=0 tiny=0 opp=0
 debugShowSort [2] {{0,2}, {2,4}, {4,0}, {3,2}} tStart=0.5 tEnd=0.260340927 sign=1 windValue=1 windSum=? 2->1 (max=2) done=0 tiny=0 opp=0
 markWinding id=1 (0,2 2,4 4,0 3,2) t=0.5 [2] (2.625,2) tEnd=0.768795564 newWindSum=1 newOppSum=-1 oppSum=? windSum=? windValue=1
 markWinding id=2 (3,2 0,2) t=0.125 [1] (2.625,2) tEnd=0.365532344 newWindSum=2 newOppSum=-1 oppSum=? windSum=? windValue=1
 markWinding id=1 (0,2 2,4 4,0 3,2) t=0.260340927 [1] (1.50910997,2.5537951) tEnd=0.5 newWindSum=2 newOppSum=-1 oppSum=? windSum=? windValue=1
 debugShowActiveSpans id=3 (0,4 2,3 2,0 4,2) t=0 (0,4) tEnd=0.341662805 other=4 otherT=1 otherIndex=1 windSum=-1 windValue=1 oppValue=0
 debugShowActiveSpans id=3 (0,4 2,3 2,0 4,2) t=0.341662805 (1.50910997,2.5537951) tEnd=0.467845317 other=1 otherT=0.260340927 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (0,4 2,3 2,0 4,2) t=0.467845317 (1.90340292,2) tEnd=0.856247521 other=2 otherT=0.365532344 otherIndex=2 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (0,4 2,3 2,0 4,2) t=0.859816875 (3.26578999,1.43438745) tEnd=1 other=1 otherT=0.821660252 otherIndex=4 windSum=-1 windValue=1 oppValue=0
 debugShowActiveSpans id=4 (4,2 0,4) t=0 (4,2) tEnd=1 other=3 otherT=1 otherIndex=5 windSum=-1 windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,2 2,4 4,0 3,2) t=0 (0,2) tEnd=0.260340927 other=2 otherT=1 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,2 2,4 4,0 3,2) t=0.260340927 (1.50910997,2.5537951) tEnd=0.5 other=3 otherT=0.341662805 otherIndex=1 windSum=2 windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,2 2,4 4,0 3,2) t=0.5 (2.625,2) tEnd=0.768795564 other=2 otherT=0.125 otherIndex=1 windSum=1 windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,2 2,4 4,0 3,2) t=0.768795564 (3.24959135,1.42666245) tEnd=0.821660252 other=3 otherT=0.856247521 otherIndex=3 windSum=1 windValue=1 oppValue=0
 debugShowActiveSpans id=2 (3,2 0,2) t=0.125 (2.625,2) tEnd=0.365532344 other=1 otherT=0.5 otherIndex=2 windSum=2 windValue=1 oppValue=0
 debugShowActiveSpans id=2 (3,2 0,2) t=0.365532344 (1.90340292,2) tEnd=1 other=3 otherT=0.467845317 otherIndex=2 windSum=? windValue=1 oppValue=0
 activeOp op=diff miFrom=0 miTo=1 suFrom=1 suTo=1 result=0
 markDoneBinary id=1 (0,2 2,4 4,0 3,2) t=0.5 [2] (2.625,2) tEnd=0.768795564 newWindSum=1 newOppSum=-1 oppSum=-1 windSum=1 windValue=1
 debugShowActiveSpans id=3 (0,4 2,3 2,0 4,2) t=0 (0,4) tEnd=0.341662805 other=4 otherT=1 otherIndex=1 windSum=-1 windValue=1 oppValue=0
 debugShowActiveSpans id=3 (0,4 2,3 2,0 4,2) t=0.341662805 (1.50910997,2.5537951) tEnd=0.467845317 other=1 otherT=0.260340927 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (0,4 2,3 2,0 4,2) t=0.467845317 (1.90340292,2) tEnd=0.856247521 other=2 otherT=0.365532344 otherIndex=2 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (0,4 2,3 2,0 4,2) t=0.859816875 (3.26578999,1.43438745) tEnd=1 other=1 otherT=0.821660252 otherIndex=4 windSum=-1 windValue=1 oppValue=0
 debugShowActiveSpans id=4 (4,2 0,4) t=0 (4,2) tEnd=1 other=3 otherT=1 otherIndex=5 windSum=-1 windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,2 2,4 4,0 3,2) t=0 (0,2) tEnd=0.260340927 other=2 otherT=1 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,2 2,4 4,0 3,2) t=0.260340927 (1.50910997,2.5537951) tEnd=0.5 other=3 otherT=0.341662805 otherIndex=1 windSum=2 windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,2 2,4 4,0 3,2) t=0.768795564 (3.24959135,1.42666245) tEnd=0.821660252 other=3 otherT=0.856247521 otherIndex=3 windSum=1 windValue=1 oppValue=0
 debugShowActiveSpans id=2 (3,2 0,2) t=0.125 (2.625,2) tEnd=0.365532344 other=1 otherT=0.5 otherIndex=2 windSum=2 windValue=1 oppValue=0
 debugShowActiveSpans id=2 (3,2 0,2) t=0.365532344 (1.90340292,2) tEnd=1 other=3 otherT=0.467845317 otherIndex=2 windSum=? windValue=1 oppValue=0
 activeOp op=diff miFrom=0 miTo=1 suFrom=0 suTo=0 result=1
 findNextOp debugShowSort contourWinding=1 oppContourWinding=0 sign=1
 debugShowSort [0] {{0,2}, {2,4}, {4,0}, {3,2}} tStart=0.821660252 tEnd=0.768795564 sign=1 windValue=1 windSum=1 1->0 (max=1) done=0 tiny=0 opp=0
 debugShowSort [1] {{0,4}, {2,3}, {2,0}, {4,2}} tStart=0.859816875 tEnd=0.856247521 sign=1 windValue=1 windSum=-1 0->-1 (max=-1) done=1 tiny=0 opp=1
 debugShowSort [2] {{0,2}, {2,4}, {4,0}, {3,2}} tStart=0.821660252 tEnd=1 sign=-1 windValue=1 windSum=1 0->1 (max=1) done=1 tiny=0 opp=0
 debugShowSort [3] {{0,4}, {2,3}, {2,0}, {4,2}} tStart=0.859816875 tEnd=1 sign=-1 windValue=1 windSum=-1 -1->0 (max=-1) done=0 tiny=0 opp=1
 findNextOp firstIndex=[0] sign=1
 activeOp op=diff miFrom=0 miTo=0 suFrom=0 suTo=1 result=0
 activeOp op=diff miFrom=0 miTo=1 suFrom=1 suTo=1 result=0
 activeOp op=diff miFrom=1 miTo=1 suFrom=1 suTo=0 result=1
 markDoneBinary id=1 (0,2 2,4 4,0 3,2) t=0.768795564 [3] (3.24959135,1.42666245) tEnd=0.821660252 newWindSum=1 newOppSum=0 oppSum=0 windSum=1 windValue=1
 findNextOp from:[1] to:[3] start=4 end=5
 bridgeOp current id=1 from=(3.24959135,1.42666245) to=(3.26578999,1.43438745)
 path.moveTo(3.24959135,1.42666245);
 path.cubicTo(3.26158428,1.4196322, 3.26713157,1.42161608, 3.26578999,1.43438745);
 findNextOp simple
 markDoneBinary id=3 (0,4 2,3 2,0 4,2) t=0.859816875 [4] (3.26578999,1.43438745) tEnd=1 newWindSum=-1 newOppSum=1 oppSum=1 windSum=-1 windValue=1
 bridgeOp current id=3 from=(3.26578999,1.43438745) to=(4,2)
 path.cubicTo(3.47857022,1.53752398, 3.71963382,1.71963382, 4,2);
 findNextOp simple
 markDoneBinary id=4 (4,2 0,4) t=0 [0] (4,2) tEnd=1 newWindSum=-1 newOppSum=1 oppSum=1 windSum=-1 windValue=1
 bridgeOp current id=4 from=(4,2) to=(0,4)
 findNextOp debugShowSort contourWinding=0 oppContourWinding=1 sign=1
 debugShowSort [3] {{0,4}, {2,3}, {2,0}, {4,2}} tStart=0.341662805 tEnd=0 sign=1 windValue=1 windSum=-1 0->-1 (max=-1) done=0 tiny=0 opp=0
 debugShowSort [0] {{0,2}, {2,4}, {4,0}, {3,2}} tStart=0.260340927 tEnd=0.5 sign=-1 windValue=1 windSum=2 1->2 (max=2) done=0 tiny=0 opp=1
 debugShowSort [1] {{0,4}, {2,3}, {2,0}, {4,2}} tStart=0.341662805 tEnd=0.467845317 sign=-1 windValue=1 windSum=? -1->0 (max=-1) done=0 tiny=0 opp=0
 debugShowSort [2] {{0,2}, {2,4}, {4,0}, {3,2}} tStart=0.260340927 tEnd=0 sign=1 windValue=1 windSum=? 2->1 (max=2) done=0 tiny=0 opp=1
 findNextOp firstIndex=[3] sign=1
 activeOp op=diff miFrom=1 miTo=1 suFrom=1 suTo=1 result=0
 activeOp op=diff miFrom=1 miTo=1 suFrom=1 suTo=0 result=1
 markWinding id=3 (0,4 2,3 2,0 4,2) t=0.341662805 [1] (1.50910997,2.5537951) tEnd=0.467845317 newWindSum=-1 newOppSum=2 oppSum=? windSum=? windValue=1
 findNextOp chase.append id=3
 activeOp op=diff miFrom=1 miTo=1 suFrom=0 suTo=0 result=0
 markDoneBinary id=1 (0,2 2,4 4,0 3,2) t=0 [0] (0,2) tEnd=0.260340927 newWindSum=2 newOppSum=0 oppSum=? windSum=? windValue=1
 markDoneBinary id=2 (3,2 0,2) t=0.365532344 [2] (1.90340292,2) tEnd=1 newWindSum=2 newOppSum=0 oppSum=? windSum=? windValue=1
 findNextOp chase.append id=2
 markDoneBinary id=3 (0,4 2,3 2,0 4,2) t=0 [0] (0,4) tEnd=0.341662805 newWindSum=-1 newOppSum=1 oppSum=1 windSum=-1 windValue=1
 findNextOp from:[3] to:[3] start=1 end=2
 bridgeOp current id=3 from=(0,4) to=(1.50910997,2.5537951)
 path.lineTo(0,4);
 path.cubicTo(0.683325648,3.65833712, 1.13318419,3.08320737, 1.50910997,2.5537951);
 findNextOp debugShowSort contourWinding=0 oppContourWinding=2 sign=1
 debugShowSort [2] {{0,4}, {2,3}, {2,0}, {4,2}} tStart=0.467845317 tEnd=0.341662805 sign=1 windValue=1 windSum=-1 0->-1 (max=-1) done=0 tiny=0 opp=0
 debugShowSort [3] {{3,2}, {0,2}} tStart=0.365532344 tEnd=0.125 sign=1 windValue=1 windSum=2 2->1 (max=2) done=0 tiny=0 opp=1
 debugShowSort [0] {{0,4}, {2,3}, {2,0}, {4,2}} tStart=0.467845317 tEnd=0.856247521 sign=-1 windValue=1 windSum=? -1->0 (max=-1) done=0 tiny=0 opp=0
 debugShowSort [1] {{3,2}, {0,2}} tStart=0.365532344 tEnd=1 sign=-1 windValue=1 windSum=2 1->2 (max=2) done=1 tiny=0 opp=1
 findNextOp firstIndex=[2] sign=1
 activeOp op=diff miFrom=1 miTo=1 suFrom=1 suTo=1 result=0
 activeOp op=diff miFrom=1 miTo=1 suFrom=1 suTo=0 result=1
 markWinding id=3 (0,4 2,3 2,0 4,2) t=0.467845317 [2] (1.90340292,2) tEnd=0.856247521 newWindSum=-1 newOppSum=1 oppSum=? windSum=? windValue=1
 findNextOp chase.append id=3
 activeOp op=diff miFrom=1 miTo=1 suFrom=0 suTo=0 result=0
 markDoneBinary id=3 (0,4 2,3 2,0 4,2) t=0.341662805 [1] (1.50910997,2.5537951) tEnd=0.467845317 newWindSum=-1 newOppSum=2 oppSum=2 windSum=-1 windValue=1
 findNextOp from:[3] to:[3] start=2 end=3
 bridgeOp current id=3 from=(1.50910997,2.5537951) to=(1.90340292,2)
 path.cubicTo(1.64794636,2.35827327, 1.77669871,2.16898704, 1.90340292,2);
 findNextOp debugShowSort contourWinding=0 oppContourWinding=1 sign=1
 debugShowSort [1] {{0,4}, {2,3}, {2,0}, {4,2}} tStart=0.856247521 tEnd=0.467845317 sign=1 windValue=1 windSum=-1 0->-1 (max=-1) done=0 tiny=0 opp=0
 debugShowSort [2] {{0,2}, {2,4}, {4,0}, {3,2}} tStart=0.768795564 tEnd=0.5 sign=1 windValue=1 windSum=1 1->0 (max=1) done=1 tiny=0 opp=1
 debugShowSort [3] {{0,4}, {2,3}, {2,0}, {4,2}} tStart=0.856247521 tEnd=0.859816875 sign=-1 windValue=1 windSum=-1 -1->0 (max=-1) done=1 tiny=0 opp=0
 debugShowSort [0] {{0,2}, {2,4}, {4,0}, {3,2}} tStart=0.768795564 tEnd=0.821660252 sign=-1 windValue=1 windSum=1 0->1 (max=1) done=1 tiny=0 opp=1
 findNextOp firstIndex=[1] sign=1
 activeOp op=diff miFrom=1 miTo=0 suFrom=1 suTo=1 result=0
 activeOp op=diff miFrom=0 miTo=0 suFrom=1 suTo=0 result=0
 activeOp op=diff miFrom=0 miTo=1 suFrom=0 suTo=0 result=1
 markDoneBinary id=3 (0,4 2,3 2,0 4,2) t=0.467845317 [2] (1.90340292,2) tEnd=0.856247521 newWindSum=-1 newOppSum=1 oppSum=1 windSum=-1 windValue=1
 findNextOp from:[3] to:[1] start=3 end=4
 bridgeOp current id=3 from=(1.90340292,2) to=(3.24959135,1.42666245)
 path.cubicTo(2.29341149,1.47984147, 2.66401696,1.15201211, 3.24959135,1.42666245);
 path.close();
 debugShowActiveSpans id=1 (0,2 2,4 4,0 3,2) t=0.260340927 (1.50910997,2.5537951) tEnd=0.5 other=3 otherT=0.341662805 otherIndex=1 windSum=2 windValue=1 oppValue=0
 debugShowActiveSpans id=2 (3,2 0,2) t=0.125 (2.625,2) tEnd=0.365532344 other=1 otherT=0.5 otherIndex=2 windSum=2 windValue=1 oppValue=0
 activeOp op=diff miFrom=1 miTo=1 suFrom=1 suTo=1 result=0
 markDoneBinary id=2 (3,2 0,2) t=0.125 [1] (2.625,2) tEnd=0.365532344 newWindSum=2 newOppSum=-1 oppSum=-1 windSum=2 windValue=1
 debugShowActiveSpans id=1 (0,2 2,4 4,0 3,2) t=0.260340927 (1.50910997,2.5537951) tEnd=0.5 other=3 otherT=0.341662805 otherIndex=1 windSum=2 windValue=1 oppValue=0
 activeOp op=diff miFrom=1 miTo=1 suFrom=1 suTo=1 result=0
 markDoneBinary id=1 (0,2 2,4 4,0 3,2) t=0.260340927 [1] (1.50910997,2.5537951) tEnd=0.5 newWindSum=2 newOppSum=-1 oppSum=-1 windSum=2 windValue=1
 </div>

 <div id="cubicOp46d">
   SimplifyNew_Test [cubicOp46d]
 {{0,2}, {3,5}, {5,0}, {4,2}},
 {{4,2}, {0,2}},
 op difference
 {{0,5}, {2,4}, {2,0}, {5,3}},
 {{5,3}, {0,5}},
 debugShowCubicIntersection no self intersect {{0,2}, {3,5}, {5,0}, {4,2}}
 debugShowCubicLineIntersection wtTs[0]=0 {{0,2}, {3,5}, {5,0}, {4,2}} {{0,2}} wtTs[1]=0.6 {{3.887999999999999,2.0000000000000013}} wtTs[2]=1 {{4,2}} wnTs[0]=1 {{4,2}, {0,2}} wnTs[1]=0.028 wnTs[2]=0
 debugShowCubicIntersection wtTs[0]=0.215060475 {{0,2}, {3,5}, {5,0}, {4,2}} {{1.7768977226209808,2.9747215410507057}} wtTs[1]=0.578517386 {{3.8153702411617676,2.0785732044555085}} wnTs[0]=0.404694 {{0,5}, {2,4}, {2,0}, {5,3}} wnTs[1]=0.846938928
 debugShowCubicLineIntersection wtTs[0]=0.64696132 {{0,5}, {2,4}, {2,0}, {5,3}} {{2.7243714728959709,2}} wtTs[1]=0.819132784 {{3.6370281018311013,1.9999999999999996}} wnTs[0]=0.318907 {{4,2}, {0,2}} wnTs[1]=0.0907429745
 debugShowCubicIntersection no self intersect {{0,5}, {2,4}, {2,0}, {5,3}}
 debugShowCubicLineIntersection wtTs[0]=0 {{0,5}, {2,4}, {2,0}, {5,3}} {{0,5}} wtTs[1]=1 {{5,3}} wnTs[0]=1 {{5,3}, {0,5}} wnTs[1]=0
 debugShowActiveSpans id=1 (0,2 3,5 5,0 4,2) t=0 (0,2) tEnd=0.215060475 other=2 otherT=1 otherIndex=4 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,2 3,5 5,0 4,2) t=0.215060475 (1.77689767,2.97472143) tEnd=0.578517386 other=3 otherT=0.404693629 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,2 3,5 5,0 4,2) t=0.578517386 (3.81537032,2.07857323) tEnd=0.6 other=3 otherT=0.846938928 otherIndex=4 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,2 3,5 5,0 4,2) t=0.6 (3.88800001,2) tEnd=1 other=2 otherT=0.028 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=2 (4,2 0,2) t=0 (4,2) tEnd=0.028 other=1 otherT=1 otherIndex=4 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=2 (4,2 0,2) t=0.028 (3.88800001,2) tEnd=0.0907429745 other=1 otherT=0.6 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=2 (4,2 0,2) t=0.0907429745 (3.63702822,2) tEnd=0.318907132 other=3 otherT=0.819132784 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=2 (4,2 0,2) t=0.318907132 (2.72437143,2) tEnd=1 other=3 otherT=0.64696132 otherIndex=2 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (0,5 2,4 2,0 5,3) t=0 (0,5) tEnd=0.404693629 other=4 otherT=1 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (0,5 2,4 2,0 5,3) t=0.404693629 (1.77689767,2.97472143) tEnd=0.64696132 other=1 otherT=0.215060475 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (0,5 2,4 2,0 5,3) t=0.64696132 (2.72437143,2) tEnd=0.819132784 other=2 otherT=0.318907132 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (0,5 2,4 2,0 5,3) t=0.819132784 (3.63702822,2) tEnd=0.846938928 other=2 otherT=0.0907429745 otherIndex=2 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (0,5 2,4 2,0 5,3) t=0.846938928 (3.81537032,2.07857323) tEnd=1 other=1 otherT=0.578517386 otherIndex=2 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=4 (5,3 0,5) t=0 (5,3) tEnd=1 other=3 otherT=1 otherIndex=5 windSum=? windValue=1 oppValue=0
 findTop debugShowSort contourWinding=0 oppContourWinding=0 sign=1
 debugShowSort [0] {{0,2}, {3,5}, {5,0}, {4,2}} tStart=1 tEnd=0.6 sign=1 windValue=1 windSum=? 0->-1 (max=-1) done=0 tiny=0 opp=0
 debugShowSort [1] {{4,2}, {0,2}} tStart=0 tEnd=0.028 sign=-1 windValue=1 windSum=? -1->0 (max=-1) done=0 tiny=0 opp=0
 findTop swap
 markWinding id=1 (0,2 3,5 5,0 4,2) t=0.6 [3] (3.88800001,2) tEnd=1 newWindSum=1 newOppSum=0 oppSum=? windSum=? windValue=1
 markWinding id=1 (0,2 3,5 5,0 4,2) t=0.6 [3] (3.88800001,2) tEnd=1 newWindSum=1 newOppSum=0 oppSum=0 windSum=1 windValue=1
 markWinding id=2 (4,2 0,2) t=0 [0] (4,2) tEnd=0.028 newWindSum=1 newOppSum=0 oppSum=? windSum=? windValue=1
 activeOp op=diff miFrom=1 miTo=0 suFrom=0 suTo=0 result=1
 findNextOp debugShowSort contourWinding=0 oppContourWinding=0 sign=-1
 debugShowSort [0] {{0,2}, {3,5}, {5,0}, {4,2}} tStart=0.6 tEnd=1 sign=-1 windValue=1 windSum=1 0->1 (max=1) done=0 tiny=0 opp=0
 debugShowSort [1] {{4,2}, {0,2}} tStart=0.028 tEnd=0.0907429745 sign=-1 windValue=1 windSum=? 1->2 (max=2) done=0 tiny=0 opp=0
 debugShowSort [2] {{0,2}, {3,5}, {5,0}, {4,2}} tStart=0.6 tEnd=0.578517386 sign=1 windValue=1 windSum=? 2->1 (max=2) done=0 tiny=0 opp=0
 debugShowSort [3] {{4,2}, {0,2}} tStart=0.028 tEnd=0 sign=1 windValue=1 windSum=1 1->0 (max=1) done=0 tiny=0 opp=0
 findNextOp firstIndex=[0] sign=-1
 activeOp op=diff miFrom=1 miTo=1 suFrom=0 suTo=0 result=0
 markDoneBinary id=2 (4,2 0,2) t=0.028 [1] (3.88800001,2) tEnd=0.0907429745 newWindSum=2 newOppSum=0 oppSum=? windSum=? windValue=1
 findNextOp chase.append id=2
 activeOp op=diff miFrom=1 miTo=1 suFrom=0 suTo=0 result=0
 markDoneBinary id=1 (0,2 3,5 5,0 4,2) t=0.578517386 [2] (3.81537032,2.07857323) tEnd=0.6 newWindSum=2 newOppSum=0 oppSum=? windSum=? windValue=1
 findNextOp chase.append id=1
 activeOp op=diff miFrom=1 miTo=0 suFrom=0 suTo=0 result=1
 markDoneBinary id=1 (0,2 3,5 5,0 4,2) t=0.6 [3] (3.88800001,2) tEnd=1 newWindSum=1 newOppSum=0 oppSum=0 windSum=1 windValue=1
 findNextOp from:[1] to:[2] start=1 end=0
 bridgeOp current id=1 from=(4,2) to=(3.88800001,2)
 path.moveTo(4,2);
 path.cubicTo(4.4000001,1.20000005, 4.32000017,1.51999998, 3.88800001,2);
 findNextOp simple
 markDoneBinary id=2 (4,2 0,2) t=0 [0] (4,2) tEnd=0.028 newWindSum=1 newOppSum=0 oppSum=0 windSum=1 windValue=1
 bridgeOp current id=2 from=(3.88800001,2) to=(4,2)
 path.lineTo(4,2);
 path.close();
 findChaseOp debugShowSort contourWinding=1 oppContourWinding=0 sign=-1
 debugShowSort [0] {{0,2}, {3,5}, {5,0}, {4,2}} tStart=0.578517386 tEnd=0.6 sign=-1 windValue=1 windSum=2 1->2 (max=2) done=1 tiny=0 opp=0
 debugShowSort [1] {{0,5}, {2,4}, {2,0}, {5,3}} tStart=0.846938928 tEnd=0.819132784 sign=1 windValue=1 windSum=? 0->-1 (max=-1) done=0 tiny=0 opp=1
 debugShowSort [2] {{0,2}, {3,5}, {5,0}, {4,2}} tStart=0.578517386 tEnd=0.215060475 sign=1 windValue=1 windSum=? 2->1 (max=2) done=0 tiny=0 opp=0
 debugShowSort [3] {{0,5}, {2,4}, {2,0}, {5,3}} tStart=0.846938928 tEnd=1 sign=-1 windValue=1 windSum=? -1->0 (max=-1) done=0 tiny=0 opp=1
 findChaseOp debugShowSort contourWinding=1 oppContourWinding=0 sign=-1
 debugShowSort [0] {{0,2}, {3,5}, {5,0}, {4,2}} tStart=0.578517386 tEnd=0.6 sign=-1 windValue=1 windSum=2 1->2 (max=2) done=1 tiny=0 opp=0
 debugShowSort [1] {{0,5}, {2,4}, {2,0}, {5,3}} tStart=0.846938928 tEnd=0.819132784 sign=1 windValue=1 windSum=? 0->-1 (max=-1) done=0 tiny=0 opp=1
 debugShowSort [2] {{0,2}, {3,5}, {5,0}, {4,2}} tStart=0.578517386 tEnd=0.215060475 sign=1 windValue=1 windSum=? 2->1 (max=2) done=0 tiny=0 opp=0
 debugShowSort [3] {{0,5}, {2,4}, {2,0}, {5,3}} tStart=0.846938928 tEnd=1 sign=-1 windValue=1 windSum=? -1->0 (max=-1) done=0 tiny=0 opp=1
 markWinding id=3 (0,5 2,4 2,0 5,3) t=0.819132784 [3] (3.63702822,2) tEnd=0.846938928 newWindSum=-1 newOppSum=2 oppSum=? windSum=? windValue=1
 markWinding id=1 (0,2 3,5 5,0 4,2) t=0.215060475 [1] (1.77689767,2.97472143) tEnd=0.578517386 newWindSum=2 newOppSum=-1 oppSum=? windSum=? windValue=1
 markWinding id=3 (0,5 2,4 2,0 5,3) t=0.846938928 [4] (3.81537032,2.07857323) tEnd=1 newWindSum=-1 newOppSum=1 oppSum=? windSum=? windValue=1
 markWinding id=4 (5,3 0,5) t=0 [0] (5,3) tEnd=1 newWindSum=-1 newOppSum=1 oppSum=? windSum=? windValue=1
 markWinding id=3 (0,5 2,4 2,0 5,3) t=0 [0] (0,5) tEnd=0.404693629 newWindSum=-1 newOppSum=1 oppSum=? windSum=? windValue=1
 debugShowActiveSpans id=1 (0,2 3,5 5,0 4,2) t=0 (0,2) tEnd=0.215060475 other=2 otherT=1 otherIndex=4 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,2 3,5 5,0 4,2) t=0.215060475 (1.77689767,2.97472143) tEnd=0.578517386 other=3 otherT=0.404693629 otherIndex=1 windSum=2 windValue=1 oppValue=0
 debugShowActiveSpans id=2 (4,2 0,2) t=0.0907429745 (3.63702822,2) tEnd=0.318907132 other=3 otherT=0.819132784 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=2 (4,2 0,2) t=0.318907132 (2.72437143,2) tEnd=1 other=3 otherT=0.64696132 otherIndex=2 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (0,5 2,4 2,0 5,3) t=0 (0,5) tEnd=0.404693629 other=4 otherT=1 otherIndex=1 windSum=-1 windValue=1 oppValue=0
 debugShowActiveSpans id=3 (0,5 2,4 2,0 5,3) t=0.404693629 (1.77689767,2.97472143) tEnd=0.64696132 other=1 otherT=0.215060475 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (0,5 2,4 2,0 5,3) t=0.64696132 (2.72437143,2) tEnd=0.819132784 other=2 otherT=0.318907132 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (0,5 2,4 2,0 5,3) t=0.819132784 (3.63702822,2) tEnd=0.846938928 other=2 otherT=0.0907429745 otherIndex=2 windSum=-1 windValue=1 oppValue=0
 debugShowActiveSpans id=3 (0,5 2,4 2,0 5,3) t=0.846938928 (3.81537032,2.07857323) tEnd=1 other=1 otherT=0.578517386 otherIndex=2 windSum=-1 windValue=1 oppValue=0
 debugShowActiveSpans id=4 (5,3 0,5) t=0 (5,3) tEnd=1 other=3 otherT=1 otherIndex=5 windSum=-1 windValue=1 oppValue=0
 activeOp op=diff miFrom=1 miTo=1 suFrom=0 suTo=1 result=1
 findNextOp debugShowSort contourWinding=-1 oppContourWinding=2 sign=-1
 debugShowSort [2] {{0,5}, {2,4}, {2,0}, {5,3}} tStart=0.819132784 tEnd=0.846938928 sign=-1 windValue=1 windSum=-1 -1->0 (max=-1) done=0 tiny=0 opp=0
 debugShowSort [3] {{4,2}, {0,2}} tStart=0.0907429745 tEnd=0.028 sign=1 windValue=1 windSum=2 2->1 (max=2) done=1 tiny=0 opp=1
 debugShowSort [0] {{0,5}, {2,4}, {2,0}, {5,3}} tStart=0.819132784 tEnd=0.64696132 sign=1 windValue=1 windSum=? 0->-1 (max=-1) done=0 tiny=0 opp=0
 debugShowSort [1] {{4,2}, {0,2}} tStart=0.0907429745 tEnd=0.318907132 sign=-1 windValue=1 windSum=? 1->2 (max=2) done=0 tiny=0 opp=1
 findNextOp firstIndex=[2] sign=-1
 activeOp op=diff miFrom=1 miTo=1 suFrom=0 suTo=0 result=0
 activeOp op=diff miFrom=1 miTo=1 suFrom=0 suTo=1 result=1
 markWinding id=3 (0,5 2,4 2,0 5,3) t=0.64696132 [2] (2.72437143,2) tEnd=0.819132784 newWindSum=-1 newOppSum=1 oppSum=? windSum=? windValue=1
 findNextOp chase.append id=3
 activeOp op=diff miFrom=1 miTo=1 suFrom=1 suTo=1 result=0
 markDoneBinary id=2 (4,2 0,2) t=0.0907429745 [2] (3.63702822,2) tEnd=0.318907132 newWindSum=2 newOppSum=-1 oppSum=? windSum=? windValue=1
 findNextOp chase.append id=2
 markDoneBinary id=3 (0,5 2,4 2,0 5,3) t=0.819132784 [3] (3.63702822,2) tEnd=0.846938928 newWindSum=-1 newOppSum=2 oppSum=2 windSum=-1 windValue=1
 findNextOp from:[3] to:[3] start=3 end=2
 bridgeOp current id=3 from=(3.81537032,2.07857323) to=(3.63702822,2)
 path.moveTo(3.81537032,2.07857323);
 path.cubicTo(3.75423074,2.04822493, 3.69481921,2.02210546, 3.63702822,2);
 findNextOp debugShowSort contourWinding=-1 oppContourWinding=1 sign=-1
 debugShowSort [0] {{0,5}, {2,4}, {2,0}, {5,3}} tStart=0.64696132 tEnd=0.819132784 sign=-1 windValue=1 windSum=-1 -1->0 (max=-1) done=0 tiny=0 opp=0
 debugShowSort [1] {{4,2}, {0,2}} tStart=0.318907132 tEnd=1 sign=-1 windValue=1 windSum=? 1->2 (max=2) done=0 tiny=0 opp=1
 debugShowSort [2] {{0,5}, {2,4}, {2,0}, {5,3}} tStart=0.64696132 tEnd=0.404693629 sign=1 windValue=1 windSum=? 0->-1 (max=-1) done=0 tiny=0 opp=0
 debugShowSort [3] {{4,2}, {0,2}} tStart=0.318907132 tEnd=0.0907429745 sign=1 windValue=1 windSum=2 2->1 (max=2) done=1 tiny=0 opp=1
 findNextOp firstIndex=[0] sign=-1
 activeOp op=diff miFrom=1 miTo=1 suFrom=0 suTo=0 result=0
 markDoneBinary id=2 (4,2 0,2) t=0.318907132 [3] (2.72437143,2) tEnd=1 newWindSum=2 newOppSum=0 oppSum=? windSum=? windValue=1
 markDoneBinary id=1 (0,2 3,5 5,0 4,2) t=0 [0] (0,2) tEnd=0.215060475 newWindSum=2 newOppSum=0 oppSum=? windSum=? windValue=1
 findNextOp chase.append id=1
 activeOp op=diff miFrom=1 miTo=1 suFrom=0 suTo=1 result=1
 markWinding id=3 (0,5 2,4 2,0 5,3) t=0.404693629 [1] (1.77689767,2.97472143) tEnd=0.64696132 newWindSum=-1 newOppSum=2 oppSum=? windSum=? windValue=1
 findNextOp chase.append id=3
 activeOp op=diff miFrom=1 miTo=1 suFrom=1 suTo=1 result=0
 markDoneBinary id=3 (0,5 2,4 2,0 5,3) t=0.64696132 [2] (2.72437143,2) tEnd=0.819132784 newWindSum=-1 newOppSum=1 oppSum=1 windSum=-1 windValue=1
 findNextOp from:[3] to:[3] start=2 end=1
 bridgeOp current id=3 from=(3.63702822,2) to=(2.72437143,2)
 path.cubicTo(3.2791934,1.86312568, 2.98348093,1.88013792, 2.72437143,2);
 findNextOp debugShowSort contourWinding=-1 oppContourWinding=2 sign=-1
 debugShowSort [0] {{0,5}, {2,4}, {2,0}, {5,3}} tStart=0.404693629 tEnd=0.64696132 sign=-1 windValue=1 windSum=-1 -1->0 (max=-1) done=0 tiny=0 opp=0
 debugShowSort [1] {{0,2}, {3,5}, {5,0}, {4,2}} tStart=0.215060475 tEnd=0 sign=1 windValue=1 windSum=2 2->1 (max=2) done=1 tiny=0 opp=1
 debugShowSort [2] {{0,5}, {2,4}, {2,0}, {5,3}} tStart=0.404693629 tEnd=0 sign=1 windValue=1 windSum=-1 0->-1 (max=-1) done=0 tiny=0 opp=0
 debugShowSort [3] {{0,2}, {3,5}, {5,0}, {4,2}} tStart=0.215060475 tEnd=0.578517386 sign=-1 windValue=1 windSum=2 1->2 (max=2) done=0 tiny=0 opp=1
 findNextOp firstIndex=[0] sign=-1
 activeOp op=diff miFrom=1 miTo=1 suFrom=0 suTo=0 result=0
 activeOp op=diff miFrom=1 miTo=1 suFrom=0 suTo=1 result=1
 activeOp op=diff miFrom=1 miTo=1 suFrom=1 suTo=1 result=0
 markDoneBinary id=3 (0,5 2,4 2,0 5,3) t=0.404693629 [1] (1.77689767,2.97472143) tEnd=0.64696132 newWindSum=-1 newOppSum=2 oppSum=2 windSum=-1 windValue=1
 findNextOp from:[3] to:[3] start=1 end=0
 bridgeOp current id=3 from=(2.72437143,2) to=(1.77689767,2.97472143)
 path.cubicTo(2.35977101,2.16866159, 2.06764531,2.54096746, 1.77689767,2.97472143);
 findNextOp simple
 markDoneBinary id=3 (0,5 2,4 2,0 5,3) t=0 [0] (0,5) tEnd=0.404693629 newWindSum=-1 newOppSum=1 oppSum=1 windSum=-1 windValue=1
 bridgeOp current id=3 from=(1.77689767,2.97472143) to=(0,5)
 path.cubicTo(1.29122055,3.69928193, 0.809387267,4.5953064, 0,5);
 findNextOp simple
 markDoneBinary id=4 (5,3 0,5) t=0 [0] (5,3) tEnd=1 newWindSum=-1 newOppSum=1 oppSum=1 windSum=-1 windValue=1
 bridgeOp current id=4 from=(0,5) to=(5,3)
 findNextOp debugShowSort contourWinding=-1 oppContourWinding=1 sign=-1
 debugShowSort [3] {{0,5}, {2,4}, {2,0}, {5,3}} tStart=0.846938928 tEnd=1 sign=-1 windValue=1 windSum=-1 -1->0 (max=-1) done=0 tiny=0 opp=0
 debugShowSort [0] {{0,2}, {3,5}, {5,0}, {4,2}} tStart=0.578517386 tEnd=0.6 sign=-1 windValue=1 windSum=2 1->2 (max=2) done=1 tiny=0 opp=1
 debugShowSort [1] {{0,5}, {2,4}, {2,0}, {5,3}} tStart=0.846938928 tEnd=0.819132784 sign=1 windValue=1 windSum=-1 0->-1 (max=-1) done=1 tiny=0 opp=0
 debugShowSort [2] {{0,2}, {3,5}, {5,0}, {4,2}} tStart=0.578517386 tEnd=0.215060475 sign=1 windValue=1 windSum=2 2->1 (max=2) done=0 tiny=0 opp=1
 findNextOp firstIndex=[3] sign=-1
 activeOp op=diff miFrom=1 miTo=1 suFrom=0 suTo=0 result=0
 activeOp op=diff miFrom=1 miTo=1 suFrom=0 suTo=1 result=1
 activeOp op=diff miFrom=1 miTo=1 suFrom=1 suTo=1 result=0
 markDoneBinary id=3 (0,5 2,4 2,0 5,3) t=0.846938928 [4] (3.81537032,2.07857323) tEnd=1 newWindSum=-1 newOppSum=1 oppSum=1 windSum=-1 windValue=1
 findNextOp from:[3] to:[3] start=4 end=3
 bridgeOp current id=3 from=(5,3) to=(3.81537032,2.07857323)
 path.lineTo(5,3);
 path.cubicTo(4.54081678,2.54081678, 4.1519165,2.2456274, 3.81537032,2.07857323);
 path.close();
 debugShowActiveSpans id=1 (0,2 3,5 5,0 4,2) t=0.215060475 (1.77689767,2.97472143) tEnd=0.578517386 other=3 otherT=0.404693629 otherIndex=1 windSum=2 windValue=1 oppValue=0
 activeOp op=diff miFrom=1 miTo=1 suFrom=1 suTo=1 result=0
 markDoneBinary id=1 (0,2 3,5 5,0 4,2) t=0.215060475 [1] (1.77689767,2.97472143) tEnd=0.578517386 newWindSum=2 newOppSum=-1 oppSum=-1 windSum=2 windValue=1
 assemble
 assemble contour    start=(4,2) end=(4,2)
 </div>

 <div id="cubicOp46da">
   {{0,2}, {3,5}, {5,0}, {4,2}},

   {{0,2}, {1.1328125,3.06640625}, {2.03125,2.984375}},
   {{2.03125,2.984375}, {2.9296875,2.90234375}, {3.5,2.375}},
   {{3.5,2.375}, {4.0703125,1.84765625}, {4.21875,1.578125}},
   {{4.21875,1.578125}, {4.3671875,1.30859375}, {4,2}},
 </div>

 <div id="cubicOp46db">
 {{x = 3, y = 4}, {x = 4.0000000000000009, y = 6}, {x = 0.99999999999999845, y = 7.894919286223335e-16}, {x = 6, y = 2}}
 </div>

 <div id="cubicOp47d">
   SimplifyNew_Test [cubicOp47d]
 {{0,1}, {1,6}, {6,2}, {5,4}},
 {{5,4}, {0,1}},
 op difference
 {{2,6}, {4,5}, {1,0}, {6,1}},
 {{6,1}, {2,6}},
 debugShowCubicIntersection no self intersect {{2,6}, {4,5}, {1,0}, {6,1}}
 debugShowCubicLineIntersection wtTs[0]=0 {{2,6}, {4,5}, {1,0}, {6,1}} {{2,6}} wtTs[1]=0.171428571 {{2.6532478134110784,5.1834402332361513}} wtTs[2]=1 {{6,1}} wnTs[0]=1 {{6,1}, {2,6}} wnTs[1]=0.836688047 wnTs[2]=0
 debugShowCubicIntersection no intersect {{2,6}, {4,5}, {1,0}, {6,1}} {{0,1}, {1,6}, {6,2}, {5,4}}
 debugShowCubicLineIntersection wtTs[0]=0.503145036 {{2,6}, {4,5}, {1,0}, {6,1}} {{2.8774036920020918,2.7264422152012551}} wnTs[0]=0.424519 {{5,4}, {0,1}}
 debugShowCubicLineIntersection wtTs[0]=0.604274731 {{0,1}, {1,6}, {6,2}, {5,4}} {{3.9881028045490883,3.5148714943136397}} wnTs[0]=0.502974 {{6,1}, {2,6}}
 debugShowLineIntersection wtTs[0]=0.486486486 {{6,1}, {2,6}} {{4.0540540540540535,3.4324324324324329}} wnTs[0]=0.189189 {{5,4}, {0,1}}
 debugShowCubicIntersection no self intersect {{0,1}, {1,6}, {6,2}, {5,4}}
 debugShowCubicLineIntersection wtTs[0]=0 {{0,1}, {1,6}, {6,2}, {5,4}} {{0,1}} wtTs[1]=0.628571429 {{4.1434402332361522,3.486064139941691}} wtTs[2]=1 {{5,4}} wnTs[0]=1 {{5,4}, {0,1}} wnTs[1]=0.171311953 wnTs[2]=0
 debugShowActiveSpans id=3 (2,6 4,5 1,0 6,1) t=0 (2,6) tEnd=0.171428571 other=4 otherT=1 otherIndex=4 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (2,6 4,5 1,0 6,1) t=0.171428571 (2.65324783,5.18344021) tEnd=0.503145036 other=4 otherT=0.836688047 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (2,6 4,5 1,0 6,1) t=0.503145036 (2.87740374,2.7264421) tEnd=1 other=2 otherT=0.424519262 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=4 (6,1 2,6) t=0 (6,1) tEnd=0.486486486 other=3 otherT=1 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=4 (6,1 2,6) t=0.486486486 (4.05405426,3.43243241) tEnd=0.502974299 other=2 otherT=0.189189189 otherIndex=2 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=4 (6,1 2,6) t=0.502974299 (3.98810291,3.5148716) tEnd=0.836688047 other=1 otherT=0.604274731 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=4 (6,1 2,6) t=0.836688047 (2.65324783,5.18344021) tEnd=1 other=3 otherT=0.171428571 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,1 1,6 6,2 5,4) t=0 (0,1) tEnd=0.604274731 other=2 otherT=1 otherIndex=4 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,1 1,6 6,2 5,4) t=0.604274731 (3.98810291,3.5148716) tEnd=0.628571429 other=4 otherT=0.502974299 otherIndex=2 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,1 1,6 6,2 5,4) t=0.628571429 (4.14344025,3.4860642) tEnd=1 other=2 otherT=0.171311953 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=2 (5,4 0,1) t=0 (5,4) tEnd=0.171311953 other=1 otherT=1 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=2 (5,4 0,1) t=0.171311953 (4.14344025,3.4860642) tEnd=0.189189189 other=1 otherT=0.628571429 otherIndex=2 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=2 (5,4 0,1) t=0.189189189 (4.05405426,3.43243241) tEnd=0.424519262 other=4 otherT=0.486486486 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=2 (5,4 0,1) t=0.424519262 (2.87740374,2.7264421) tEnd=1 other=3 otherT=0.503145036 otherIndex=2 windSum=? windValue=1 oppValue=0
 findTop debugShowSort contourWinding=0 oppContourWinding=0 sign=-1
 debugShowSort [0] {{0,1}, {1,6}, {6,2}, {5,4}} tStart=0 tEnd=0.604274731 sign=-1 windValue=1 windSum=? 0->1 (max=1) done=0 tiny=0 opp=0
 debugShowSort [1] {{5,4}, {0,1}} tStart=1 tEnd=0.424519262 sign=1 windValue=1 windSum=? 1->0 (max=1) done=0 tiny=0 opp=0
 markWinding id=1 (0,1 1,6 6,2 5,4) t=0 [0] (0,1) tEnd=0.604274731 newWindSum=1 newOppSum=0 oppSum=? windSum=? windValue=1
 markWinding id=2 (5,4 0,1) t=0.424519262 [3] (2.87740374,2.7264421) tEnd=1 newWindSum=1 newOppSum=0 oppSum=? windSum=? windValue=1
 markWinding id=1 (0,1 1,6 6,2 5,4) t=0 [0] (0,1) tEnd=0.604274731 newWindSum=1 newOppSum=0 oppSum=0 windSum=1 windValue=1
 activeOp op=diff miFrom=1 miTo=0 suFrom=0 suTo=0 result=1
 findNextOp simple
 markDoneBinary id=1 (0,1 1,6 6,2 5,4) t=0 [0] (0,1) tEnd=0.604274731 newWindSum=1 newOppSum=0 oppSum=0 windSum=1 windValue=1
 bridgeOp current id=1 from=(3.98810291,3.5148716) to=(0,1)
 path.moveTo(3.98810291,3.5148716);
 path.cubicTo(2.66914129,3.75641561, 0.60427475,4.02137375, 0,1);
 findNextOp debugShowSort contourWinding=0 oppContourWinding=0 sign=-1
 debugShowSort [1] {{5,4}, {0,1}} tStart=0.424519262 tEnd=1 sign=-1 windValue=1 windSum=1 0->1 (max=1) done=0 tiny=0 opp=0
 debugShowSort [2] {{2,6}, {4,5}, {1,0}, {6,1}} tStart=0.503145036 tEnd=0.171428571 sign=1 windValue=1 windSum=? 0->-1 (max=-1) done=0 tiny=0 opp=1
 debugShowSort [3] {{5,4}, {0,1}} tStart=0.424519262 tEnd=0.189189189 sign=1 windValue=1 windSum=? 1->0 (max=1) done=0 tiny=0 opp=0
 debugShowSort [0] {{2,6}, {4,5}, {1,0}, {6,1}} tStart=0.503145036 tEnd=1 sign=-1 windValue=1 windSum=? -1->0 (max=-1) done=0 tiny=0 opp=1
 findNextOp firstIndex=[1] sign=-1
 activeOp op=diff miFrom=1 miTo=1 suFrom=0 suTo=1 result=1
 markWinding id=3 (2,6 4,5 1,0 6,1) t=0.171428571 [1] (2.65324783,5.18344021) tEnd=0.503145036 newWindSum=-1 newOppSum=1 oppSum=? windSum=? windValue=1
 findNextOp chase.append id=3
 activeOp op=diff miFrom=1 miTo=0 suFrom=1 suTo=1 result=0
 markDoneBinary id=2 (5,4 0,1) t=0.189189189 [2] (4.05405426,3.43243241) tEnd=0.424519262 newWindSum=1 newOppSum=-1 oppSum=? windSum=? windValue=1
 findNextOp chase.append id=2
 activeOp op=diff miFrom=0 miTo=0 suFrom=1 suTo=0 result=0
 markDoneBinary id=3 (2,6 4,5 1,0 6,1) t=0.503145036 [2] (2.87740374,2.7264421) tEnd=1 newWindSum=-1 newOppSum=0 oppSum=? windSum=? windValue=1
 markDoneBinary id=4 (6,1 2,6) t=0 [0] (6,1) tEnd=0.486486486 newWindSum=-1 newOppSum=0 oppSum=? windSum=? windValue=1
 findNextOp chase.append id=4
 markDoneBinary id=2 (5,4 0,1) t=0.424519262 [3] (2.87740374,2.7264421) tEnd=1 newWindSum=1 newOppSum=0 oppSum=0 windSum=1 windValue=1
 findNextOp from:[2] to:[3] start=2 end=1
 bridgeOp current id=2 from=(0,1) to=(2.87740374,2.7264421)
 findNextOp debugShowSort contourWinding=-1 oppContourWinding=1 sign=-1
 debugShowSort [1] {{2,6}, {4,5}, {1,0}, {6,1}} tStart=0.171428571 tEnd=0.503145036 sign=-1 windValue=1 windSum=-1 -1->0 (max=-1) done=0 tiny=0 opp=0
 debugShowSort [2] {{6,1}, {2,6}} tStart=0.836688047 tEnd=1 sign=-1 windValue=1 windSum=? 0->1 (max=1) done=0 tiny=0 opp=0
 debugShowSort [3] {{2,6}, {4,5}, {1,0}, {6,1}} tStart=0.171428571 tEnd=0 sign=1 windValue=1 windSum=? 1->0 (max=1) done=0 tiny=0 opp=0
 debugShowSort [0] {{6,1}, {2,6}} tStart=0.836688047 tEnd=0.502974299 sign=1 windValue=1 windSum=? 0->-1 (max=-1) done=0 tiny=0 opp=0
 findNextOp firstIndex=[1] sign=-1
 activeOp op=diff miFrom=1 miTo=1 suFrom=0 suTo=1 result=1
 markWinding id=4 (6,1 2,6) t=0.836688047 [3] (2.65324783,5.18344021) tEnd=1 newWindSum=1 newOppSum=1 oppSum=? windSum=? windValue=1
 markWinding id=3 (2,6 4,5 1,0 6,1) t=0 [0] (2,6) tEnd=0.171428571 newWindSum=1 newOppSum=1 oppSum=? windSum=? windValue=1
 findNextOp chase.append id=3
 activeOp op=diff miFrom=1 miTo=1 suFrom=1 suTo=0 result=1
 activeOp op=diff miFrom=1 miTo=1 suFrom=0 suTo=1 result=1
 markWinding id=4 (6,1 2,6) t=0.502974299 [2] (3.98810291,3.5148716) tEnd=0.836688047 newWindSum=-1 newOppSum=1 oppSum=? windSum=? windValue=1
 findNextOp chase.append id=4
 markDoneBinary id=3 (2,6 4,5 1,0 6,1) t=0.171428571 [1] (2.65324783,5.18344021) tEnd=0.503145036 newWindSum=-1 newOppSum=1 oppSum=1 windSum=-1 windValue=1
 findNextOp from:[3] to:[4] start=3 end=4
 bridgeOp current id=3 from=(2.87740374,2.7264421) to=(2.65324783,5.18344021)
 path.lineTo(2.87740374,2.7264421);
 path.cubicTo(2.7913022,3.55361414, 2.87475324,4.49428225, 2.65324783,5.18344021);
 findNextOp simple
 markDoneBinary id=4 (6,1 2,6) t=0.836688047 [3] (2.65324783,5.18344021) tEnd=1 newWindSum=1 newOppSum=1 oppSum=1 windSum=1 windValue=1
 bridgeOp current id=4 from=(2.65324783,5.18344021) to=(2,6)
 findNextOp debugShowSort contourWinding=1 oppContourWinding=1 sign=1
 debugShowSort [3] {{2,6}, {4,5}, {1,0}, {6,1}} tStart=0.171428571 tEnd=0 sign=1 windValue=1 windSum=1 1->0 (max=1) done=0 tiny=0 opp=0
 debugShowSort [0] {{6,1}, {2,6}} tStart=0.836688047 tEnd=0.502974299 sign=1 windValue=1 windSum=-1 0->-1 (max=-1) done=0 tiny=0 opp=0
 debugShowSort [1] {{2,6}, {4,5}, {1,0}, {6,1}} tStart=0.171428571 tEnd=0.503145036 sign=-1 windValue=1 windSum=-1 -1->0 (max=-1) done=1 tiny=0 opp=0
 debugShowSort [2] {{6,1}, {2,6}} tStart=0.836688047 tEnd=1 sign=-1 windValue=1 windSum=1 0->1 (max=1) done=1 tiny=0 opp=0
 findNextOp firstIndex=[3] sign=1
 activeOp op=diff miFrom=1 miTo=1 suFrom=0 suTo=1 result=1
 activeOp op=diff miFrom=1 miTo=1 suFrom=1 suTo=0 result=1
 activeOp op=diff miFrom=1 miTo=1 suFrom=0 suTo=1 result=1
 markDoneBinary id=3 (2,6 4,5 1,0 6,1) t=0 [0] (2,6) tEnd=0.171428571 newWindSum=1 newOppSum=1 oppSum=1 windSum=1 windValue=1
 findNextOp from:[3] to:[4] start=3 end=2
 bridgeOp current id=3 from=(2,6) to=(2.65324783,5.18344021)
 path.lineTo(2,6);
 path.cubicTo(2.34285712,5.82857132, 2.53877544,5.53959179, 2.65324783,5.18344021);
 findNextOp debugShowSort contourWinding=-1 oppContourWinding=1 sign=-1
 debugShowSort [3] {{6,1}, {2,6}} tStart=0.502974299 tEnd=0.836688047 sign=-1 windValue=1 windSum=-1 -1->0 (max=-1) done=0 tiny=0 opp=0
 debugShowSort [0] {{0,1}, {1,6}, {6,2}, {5,4}} tStart=0.604274731 tEnd=0.628571429 sign=-1 windValue=1 windSum=? 1->2 (max=2) done=0 tiny=0 opp=1
 debugShowSort [1] {{6,1}, {2,6}} tStart=0.502974299 tEnd=0.486486486 sign=1 windValue=1 windSum=? 0->-1 (max=-1) done=0 tiny=0 opp=0
 debugShowSort [2] {{0,1}, {1,6}, {6,2}, {5,4}} tStart=0.604274731 tEnd=0 sign=1 windValue=1 windSum=1 2->1 (max=2) done=1 tiny=0 opp=1
 findNextOp firstIndex=[3] sign=-1
 activeOp op=diff miFrom=1 miTo=1 suFrom=0 suTo=0 result=0
 markDoneBinary id=1 (0,1 1,6 6,2 5,4) t=0.604274731 [1] (3.98810291,3.5148716) tEnd=0.628571429 newWindSum=2 newOppSum=0 oppSum=? windSum=? windValue=1
 findNextOp chase.append id=1
 activeOp op=diff miFrom=1 miTo=1 suFrom=0 suTo=1 result=1
 markWinding id=4 (6,1 2,6) t=0.486486486 [1] (4.05405426,3.43243241) tEnd=0.502974299 newWindSum=-1 newOppSum=2 oppSum=? windSum=? windValue=1
 findNextOp chase.append id=4
 activeOp op=diff miFrom=1 miTo=1 suFrom=1 suTo=1 result=0
 markDoneBinary id=4 (6,1 2,6) t=0.502974299 [2] (3.98810291,3.5148716) tEnd=0.836688047 newWindSum=-1 newOppSum=1 oppSum=1 windSum=-1 windValue=1
 findNextOp from:[4] to:[4] start=2 end=1
 bridgeOp current id=4 from=(2.65324783,5.18344021) to=(3.98810291,3.5148716)
 path.lineTo(3.98810291,3.5148716);
 path.close();
 debugShowActiveSpans id=4 (6,1 2,6) t=0.486486486 (4.05405426,3.43243241) tEnd=0.502974299 other=2 otherT=0.189189189 otherIndex=2 windSum=-1 windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,1 1,6 6,2 5,4) t=0.628571429 (4.14344025,3.4860642) tEnd=1 other=2 otherT=0.171311953 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=2 (5,4 0,1) t=0 (5,4) tEnd=0.171311953 other=1 otherT=1 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=2 (5,4 0,1) t=0.171311953 (4.14344025,3.4860642) tEnd=0.189189189 other=1 otherT=0.628571429 otherIndex=2 windSum=? windValue=1 oppValue=0
 activeOp op=diff miFrom=1 miTo=1 suFrom=1 suTo=0 result=1
 findNextOp debugShowSort contourWinding=0 oppContourWinding=2 sign=1
 debugShowSort [1] {{6,1}, {2,6}} tStart=0.502974299 tEnd=0.486486486 sign=1 windValue=1 windSum=-1 0->-1 (max=-1) done=0 tiny=0 opp=0
 debugShowSort [2] {{0,1}, {1,6}, {6,2}, {5,4}} tStart=0.604274731 tEnd=0 sign=1 windValue=1 windSum=1 2->1 (max=2) done=1 tiny=0 opp=1
 debugShowSort [3] {{6,1}, {2,6}} tStart=0.502974299 tEnd=0.836688047 sign=-1 windValue=1 windSum=-1 -1->0 (max=-1) done=1 tiny=0 opp=0
 debugShowSort [0] {{0,1}, {1,6}, {6,2}, {5,4}} tStart=0.604274731 tEnd=0.628571429 sign=-1 windValue=1 windSum=2 1->2 (max=2) done=1 tiny=0 opp=1
 findNextOp firstIndex=[1] sign=1
 activeOp op=diff miFrom=1 miTo=1 suFrom=1 suTo=1 result=0
 activeOp op=diff miFrom=1 miTo=1 suFrom=1 suTo=0 result=1
 activeOp op=diff miFrom=1 miTo=1 suFrom=0 suTo=0 result=0
 markDoneBinary id=4 (6,1 2,6) t=0.486486486 [1] (4.05405426,3.43243241) tEnd=0.502974299 newWindSum=-1 newOppSum=2 oppSum=2 windSum=-1 windValue=1
 findNextOp from:[4] to:[4] start=2 end=3
 bridgeOp current id=4 from=(4.05405426,3.43243241) to=(3.98810291,3.5148716)
 debugShowActiveSpans id=1 (0,1 1,6 6,2 5,4) t=0.628571429 (4.14344025,3.4860642) tEnd=1 other=2 otherT=0.171311953 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=2 (5,4 0,1) t=0 (5,4) tEnd=0.171311953 other=1 otherT=1 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=2 (5,4 0,1) t=0.171311953 (4.14344025,3.4860642) tEnd=0.189189189 other=1 otherT=0.628571429 otherIndex=2 windSum=? windValue=1 oppValue=0
 </div>

 <div id="cubicOp47da">
 computed quadratics given
   {{2,6}, {4,5}, {1,0}, {6,1}},
   {{0,1}, {1,6}, {6,2}, {5,4}},
 computed quadratics set 1
   {{2,6}, {2.2404737,5.87759298}, {2.39345162,5.68487367}},
   {{2.39345162,5.68487367}, {2.67348969,5.31541246}, {2.74792918,4.77711896}},
   {{2.74792918,4.77711896}, {2.82236867,4.23882547}, {2.82848144,3.63729341}},
   {{2.82848144,3.63729341}, {2.83027876,3.57616472}, {2.83215462,3.51498289}},
   {{2.83215462,3.51498289}, {2.78850872,2.32758859}, {3.26769775,1.50382966}},
   {{3.26769775,1.50382966}, {3.55499101,1.08453908}, {4.20162956,0.930553195}},
   {{4.20162956,0.930553195}, {4.84826812,0.776567313}, {6,1}},
 computed quadratics set 2
   {{0,1}, {0.337189878,2.53658624}, {1.06305813,3.09524088}},
   {{1.06305813,3.09524088}, {1.78892639,3.65389552}, {2.62772567,3.64823958}},
   {{2.62772567,3.64823958}, {3.46652495,3.64258364}, {4.1425079,3.48623815}},
   {{4.1425079,3.48623815}, {4.88772835,3.3075243}, {5.09137748,3.46764237}},
   {{5.09137748,3.46764237}, {5.20611277,3.58418013}, {5,4}},
 </div>

 <div id="cubicOp47db">
   {{2.74792918,4.77711896}, {2.82236867,4.23882547}, {2.82848144,3.63729341}},
   {{2.62772567,3.64823958}, {3.46652495,3.64258364}, {4.1425079,3.48623815}},
 </div>

 <div id="cubicOp48d">
   SimplifyNew_Test [cubicOp48d]
 {{0,2}, {2,3}, {5,1}, {3,2}},
 {{3,2}, {0,2}},
 op difference
 {{1,5}, {2,3}, {2,0}, {3,2}},
 {{3,2}, {1,5}},
 debugShowCubicIntersection no self intersect {{1,5}, {2,3}, {2,0}, {3,2}}
 debugShowCubicLineIntersection wtTs[0]=0 {{1,5}, {2,3}, {2,0}, {3,2}} {{1,5}} wtTs[1]=1 {{3,2}} wnTs[0]=1 {{3,2}, {1,5}} wnTs[1]=0
 debugShowCubicIntersection wtTs[0]=0.447821962 {{1,5}, {2,3}, {2,0}, {3,2}} {{1.921448828321461,2.2502841146969206}} wtTs[1]=1 {{3,2}} wnTs[0]=0.302178 {{0,2}, {2,3}, {5,1}, {3,2}} wnTs[1]=1
 debugShowCubicLineIntersection wtTs[0]=0.5 {{1,5}, {2,3}, {2,0}, {3,2}} {{2,2}} wtTs[1]=1 {{3,2}} wnTs[0]=0.333333 {{3,2}, {0,2}} wnTs[1]=0
 debugShowCubicLineIntersection wtTs[0]=0.5 {{0,2}, {2,3}, {5,1}, {3,2}} {{3,2}} wtTs[1]=1 {{3,2}} wnTs[0]=0 {{3,2}, {1,5}} wnTs[1]=0
 debugShowLineIntersection wtTs[0]=0 {{3,2}, {1,5}} {{3,2}} wnTs[0]=0 {{3,2}, {0,2}}
 debugShowCubicIntersection wtTs[0]=0.5 {{0,2}, {2,3}, {5,1}, {3,2}} {{3,2}} wtTs[1]=1
 debugShowCubicLineIntersection wtTs[0]=0 {{0,2}, {2,3}, {5,1}, {3,2}} {{0,2}} wtTs[1]=0.5 {{3,2}} wtTs[2]=1 {{3,2}} wnTs[0]=1 {{3,2}, {0,2}} wnTs[1]=0 wnTs[2]=0
 debugShowActiveSpans id=3 (1,5 2,3 2,0 3,2) t=0 (1,5) tEnd=0.447821962 other=4 otherT=1 otherIndex=4 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (1,5 2,3 2,0 3,2) t=0.447821962 (1.92144883,2.25028419) tEnd=0.5 other=1 otherT=0.302178051 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (1,5 2,3 2,0 3,2) t=0.5 (2,2) tEnd=1 other=2 otherT=0.333333333 otherIndex=4 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=4 (3,2 1,5) t=0 (3,2) tEnd=1 other=3 otherT=1 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,2 2,3 5,1 3,2) t=0 (0,2) tEnd=0.302178051 other=2 otherT=1 otherIndex=5 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,2 2,3 5,1 3,2) t=0.302178051 (1.92144883,2.25028419) tEnd=0.5 other=3 otherT=0.447821962 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,2 2,3 5,1 3,2) t=0.5 (3,2) tEnd=1 other=4 otherT=0 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=2 (3,2 0,2) t=0 (3,2) tEnd=0.333333333 other=3 otherT=1 otherIndex=5 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=2 (3,2 0,2) t=0.333333333 (2,2) tEnd=1 other=3 otherT=0.5 otherIndex=2 windSum=? windValue=1 oppValue=0
 findTop debugShowSort contourWinding=0 oppContourWinding=0 sign=1
 debugShowSort [1] {{1,5}, {2,3}, {2,0}, {3,2}} tStart=1 tEnd=0.5 sign=1 windValue=1 windSum=? 0->-1 (max=-1) done=0 tiny=0 opp=0
 debugShowSort [2] {{3,2}, {0,2}} tStart=0 tEnd=0.333333333 sign=-1 windValue=1 windSum=? 0->1 (max=1) done=0 tiny=0 opp=1
 debugShowSort [3] {{3,2}, {1,5}} tStart=0 tEnd=1 sign=-1 windValue=1 windSum=? -1->0 (max=-1) done=0 tiny=0 opp=0
 debugShowSort [0] {{0,2}, {2,3}, {5,1}, {3,2}} tStart=1 tEnd=0.5 sign=1 windValue=1 windSum=? 1->0 (max=1) done=0 tiny=0 opp=1
 markWinding id=3 (1,5 2,3 2,0 3,2) t=0.5 [2] (2,2) tEnd=1 newWindSum=-1 newOppSum=0 oppSum=? windSum=? windValue=1
 markWinding id=3 (1,5 2,3 2,0 3,2) t=0.5 [2] (2,2) tEnd=1 newWindSum=-1 newOppSum=0 oppSum=0 windSum=-1 windValue=1
 activeOp op=diff miFrom=0 miTo=0 suFrom=1 suTo=0 result=0
 markDoneBinary id=3 (1,5 2,3 2,0 3,2) t=0.5 [2] (2,2) tEnd=1 newWindSum=-1 newOppSum=0 oppSum=0 windSum=-1 windValue=1
 findChaseOp debugShowSort contourWinding=? oppContourWinding=? sign=1
 debugShowSort [0] {{0,2}, {2,3}, {5,1}, {3,2}} tStart=1 tEnd=0.5 sign=1 windValue=1 windSum=? ?->? (max=?) done=0 tiny=0 opp=0
 debugShowSort [1] {{1,5}, {2,3}, {2,0}, {3,2}} tStart=1 tEnd=0.5 sign=1 windValue=1 windSum=-1 ?->? (max=?) done=1 tiny=0 opp=1
 debugShowSort [2] {{3,2}, {0,2}} tStart=0 tEnd=0.333333333 sign=-1 windValue=1 windSum=? ?->? (max=?) done=0 tiny=0 opp=0
 debugShowSort [3] {{3,2}, {1,5}} tStart=0 tEnd=1 sign=-1 windValue=1 windSum=? ?->? (max=?) done=0 tiny=0 opp=1
 findChaseOp debugShowSort contourWinding=0 oppContourWinding=0 sign=1
 debugShowSort [1] {{1,5}, {2,3}, {2,0}, {3,2}} tStart=1 tEnd=0.5 sign=1 windValue=1 windSum=-1 0->-1 (max=-1) done=1 tiny=0 opp=0
 debugShowSort [2] {{3,2}, {0,2}} tStart=0 tEnd=0.333333333 sign=-1 windValue=1 windSum=? 0->1 (max=1) done=0 tiny=0 opp=1
 debugShowSort [3] {{3,2}, {1,5}} tStart=0 tEnd=1 sign=-1 windValue=1 windSum=? -1->0 (max=-1) done=0 tiny=0 opp=0
 debugShowSort [0] {{0,2}, {2,3}, {5,1}, {3,2}} tStart=1 tEnd=0.5 sign=1 windValue=1 windSum=? 1->0 (max=1) done=0 tiny=0 opp=1
 markWinding id=2 (3,2 0,2) t=0 [0] (3,2) tEnd=0 newWindSum=1 newOppSum=-1 oppSum=? windSum=? windValue=1
 markWinding id=2 (3,2 0,2) t=0 [1] (3,2) tEnd=0 newWindSum=1 newOppSum=-1 oppSum=? windSum=? windValue=1
 markWinding id=2 (3,2 0,2) t=0 [2] (3,2) tEnd=0 newWindSum=1 newOppSum=-1 oppSum=? windSum=? windValue=1
 markWinding id=2 (3,2 0,2) t=0 [3] (3,2) tEnd=0.333333333 newWindSum=1 newOppSum=-1 oppSum=? windSum=? windValue=1
 markWinding id=4 (3,2 1,5) t=0 [0] (3,2) tEnd=0 newWindSum=-1 newOppSum=1 oppSum=? windSum=? windValue=1
 markWinding id=4 (3,2 1,5) t=0 [1] (3,2) tEnd=0 newWindSum=-1 newOppSum=1 oppSum=? windSum=? windValue=1
 markWinding id=4 (3,2 1,5) t=0 [2] (3,2) tEnd=0 newWindSum=-1 newOppSum=1 oppSum=? windSum=? windValue=1
 markWinding id=4 (3,2 1,5) t=0 [3] (3,2) tEnd=1 newWindSum=-1 newOppSum=1 oppSum=? windSum=? windValue=1
 markWinding id=3 (1,5 2,3 2,0 3,2) t=0 [0] (1,5) tEnd=0.447821962 newWindSum=-1 newOppSum=1 oppSum=? windSum=? windValue=1
 markWinding id=1 (0,2 2,3 5,1 3,2) t=0.5 [3] (3,2) tEnd=0.5 newWindSum=1 newOppSum=0 oppSum=? windSum=? windValue=1
 markWinding id=1 (0,2 2,3 5,1 3,2) t=0.5 [2] (3,2) tEnd=0.5 newWindSum=1 newOppSum=0 oppSum=? windSum=? windValue=1
 markWinding id=1 (0,2 2,3 5,1 3,2) t=0.5 [4] (3,2) tEnd=1 newWindSum=1 newOppSum=0 oppSum=? windSum=? windValue=1
 debugShowActiveSpans id=3 (1,5 2,3 2,0 3,2) t=0 (1,5) tEnd=0.447821962 other=4 otherT=1 otherIndex=4 windSum=-1 windValue=1 oppValue=0
 debugShowActiveSpans id=3 (1,5 2,3 2,0 3,2) t=0.447821962 (1.92144883,2.25028419) tEnd=0.5 other=1 otherT=0.302178051 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=4 (3,2 1,5) t=0 (3,2) tEnd=1 other=3 otherT=1 otherIndex=3 windSum=-1 windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,2 2,3 5,1 3,2) t=0 (0,2) tEnd=0.302178051 other=2 otherT=1 otherIndex=5 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,2 2,3 5,1 3,2) t=0.302178051 (1.92144883,2.25028419) tEnd=0.5 other=3 otherT=0.447821962 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,2 2,3 5,1 3,2) t=0.5 (3,2) tEnd=1 other=4 otherT=0 otherIndex=1 windSum=1 windValue=1 oppValue=0
 debugShowActiveSpans id=2 (3,2 0,2) t=0 (3,2) tEnd=0.333333333 other=3 otherT=1 otherIndex=5 windSum=1 windValue=1 oppValue=0
 debugShowActiveSpans id=2 (3,2 0,2) t=0.333333333 (2,2) tEnd=1 other=3 otherT=0.5 otherIndex=2 windSum=? windValue=1 oppValue=0
 activeOp op=diff miFrom=0 miTo=1 suFrom=1 suTo=1 result=0
 markDoneBinary id=2 (3,2 0,2) t=0 [0] (3,2) tEnd=0 newWindSum=1 newOppSum=-1 oppSum=-1 windSum=1 windValue=1
 markDoneBinary id=2 (3,2 0,2) t=0 [1] (3,2) tEnd=0 newWindSum=1 newOppSum=-1 oppSum=-1 windSum=1 windValue=1
 markDoneBinary id=2 (3,2 0,2) t=0 [2] (3,2) tEnd=0 newWindSum=1 newOppSum=-1 oppSum=-1 windSum=1 windValue=1
 markDoneBinary id=2 (3,2 0,2) t=0 [3] (3,2) tEnd=0.333333333 newWindSum=1 newOppSum=-1 oppSum=-1 windSum=1 windValue=1
 findChaseOp debugShowSort contourWinding=-1 oppContourWinding=0 sign=-1
 debugShowSort [0] {{1,5}, {2,3}, {2,0}, {3,2}} tStart=0.5 tEnd=1 sign=-1 windValue=1 windSum=-1 -1->0 (max=-1) done=1 tiny=0 opp=0
 debugShowSort [1] {{3,2}, {0,2}} tStart=0.333333333 tEnd=1 sign=-1 windValue=1 windSum=? 0->1 (max=1) done=0 tiny=0 opp=1
 debugShowSort [2] {{1,5}, {2,3}, {2,0}, {3,2}} tStart=0.5 tEnd=0.447821962 sign=1 windValue=1 windSum=? 0->-1 (max=-1) done=0 tiny=0 opp=0
 debugShowSort [3] {{3,2}, {0,2}} tStart=0.333333333 tEnd=0 sign=1 windValue=1 windSum=1 1->0 (max=1) done=1 tiny=0 opp=1
 findChaseOp debugShowSort contourWinding=-1 oppContourWinding=0 sign=-1
 debugShowSort [0] {{1,5}, {2,3}, {2,0}, {3,2}} tStart=0.5 tEnd=1 sign=-1 windValue=1 windSum=-1 -1->0 (max=-1) done=1 tiny=0 opp=0
 debugShowSort [1] {{3,2}, {0,2}} tStart=0.333333333 tEnd=1 sign=-1 windValue=1 windSum=? 0->1 (max=1) done=0 tiny=0 opp=1
 debugShowSort [2] {{1,5}, {2,3}, {2,0}, {3,2}} tStart=0.5 tEnd=0.447821962 sign=1 windValue=1 windSum=? 0->-1 (max=-1) done=0 tiny=0 opp=0
 debugShowSort [3] {{3,2}, {0,2}} tStart=0.333333333 tEnd=0 sign=1 windValue=1 windSum=1 1->0 (max=1) done=1 tiny=0 opp=1
 markWinding id=2 (3,2 0,2) t=0.333333333 [4] (2,2) tEnd=1 newWindSum=1 newOppSum=0 oppSum=? windSum=? windValue=1
 markWinding id=1 (0,2 2,3 5,1 3,2) t=0 [0] (0,2) tEnd=0.302178051 newWindSum=1 newOppSum=0 oppSum=? windSum=? windValue=1
 markWinding id=3 (1,5 2,3 2,0 3,2) t=0.447821962 [1] (1.92144883,2.25028419) tEnd=0.5 newWindSum=-1 newOppSum=1 oppSum=? windSum=? windValue=1
 debugShowActiveSpans id=3 (1,5 2,3 2,0 3,2) t=0 (1,5) tEnd=0.447821962 other=4 otherT=1 otherIndex=4 windSum=-1 windValue=1 oppValue=0
 debugShowActiveSpans id=3 (1,5 2,3 2,0 3,2) t=0.447821962 (1.92144883,2.25028419) tEnd=0.5 other=1 otherT=0.302178051 otherIndex=1 windSum=-1 windValue=1 oppValue=0
 debugShowActiveSpans id=4 (3,2 1,5) t=0 (3,2) tEnd=1 other=3 otherT=1 otherIndex=3 windSum=-1 windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,2 2,3 5,1 3,2) t=0 (0,2) tEnd=0.302178051 other=2 otherT=1 otherIndex=5 windSum=1 windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,2 2,3 5,1 3,2) t=0.302178051 (1.92144883,2.25028419) tEnd=0.5 other=3 otherT=0.447821962 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,2 2,3 5,1 3,2) t=0.5 (3,2) tEnd=1 other=4 otherT=0 otherIndex=1 windSum=1 windValue=1 oppValue=0
 debugShowActiveSpans id=2 (3,2 0,2) t=0.333333333 (2,2) tEnd=1 other=3 otherT=0.5 otherIndex=2 windSum=1 windValue=1 oppValue=0
 activeOp op=diff miFrom=0 miTo=1 suFrom=0 suTo=0 result=1
 findNextOp simple
 markDoneBinary id=2 (3,2 0,2) t=0.333333333 [4] (2,2) tEnd=1 newWindSum=1 newOppSum=0 oppSum=0 windSum=1 windValue=1
 bridgeOp current id=2 from=(2,2) to=(0,2)
 findNextOp debugShowSort contourWinding=1 oppContourWinding=0 sign=1
 debugShowSort [2] {{0,2}, {2,3}, {5,1}, {3,2}} tStart=0.302178051 tEnd=0 sign=1 windValue=1 windSum=1 1->0 (max=1) done=0 tiny=0 opp=0
 debugShowSort [3] {{1,5}, {2,3}, {2,0}, {3,2}} tStart=0.447821962 tEnd=0 sign=1 windValue=1 windSum=-1 0->-1 (max=-1) done=0 tiny=0 opp=1
 debugShowSort [0] {{0,2}, {2,3}, {5,1}, {3,2}} tStart=0.302178051 tEnd=0.5 sign=-1 windValue=1 windSum=? 0->1 (max=1) done=0 tiny=0 opp=0
 debugShowSort [1] {{1,5}, {2,3}, {2,0}, {3,2}} tStart=0.447821962 tEnd=0.5 sign=-1 windValue=1 windSum=-1 -1->0 (max=-1) done=0 tiny=0 opp=1
 findNextOp firstIndex=[2] sign=1
 activeOp op=diff miFrom=0 miTo=0 suFrom=0 suTo=1 result=0
 activeOp op=diff miFrom=0 miTo=1 suFrom=1 suTo=1 result=0
 markDoneBinary id=1 (0,2 2,3 5,1 3,2) t=0.302178051 [1] (1.92144883,2.25028419) tEnd=0.5 newWindSum=1 newOppSum=-1 oppSum=? windSum=? windValue=1
 findNextOp chase.append id=1
 activeOp op=diff miFrom=1 miTo=1 suFrom=1 suTo=0 result=1
 markDoneBinary id=1 (0,2 2,3 5,1 3,2) t=0 [0] (0,2) tEnd=0.302178051 newWindSum=1 newOppSum=0 oppSum=0 windSum=1 windValue=1
 findNextOp from:[1] to:[3] start=1 end=2
 bridgeOp current id=1 from=(0,2) to=(1.92144883,2.25028419)
 path.moveTo(2,2);
 path.lineTo(0,2);
 path.cubicTo(0.60435605,2.30217814, 1.30002379,2.33042121, 1.92144883,2.25028419);
 findNextOp debugShowSort contourWinding=0 oppContourWinding=1 sign=1
 debugShowSort [2] {{1,5}, {2,3}, {2,0}, {3,2}} tStart=0.5 tEnd=0.447821962 sign=1 windValue=1 windSum=-1 0->-1 (max=-1) done=0 tiny=0 opp=0
 debugShowSort [3] {{3,2}, {0,2}} tStart=0.333333333 tEnd=0 sign=1 windValue=1 windSum=1 1->0 (max=1) done=1 tiny=0 opp=1
 debugShowSort [0] {{1,5}, {2,3}, {2,0}, {3,2}} tStart=0.5 tEnd=1 sign=-1 windValue=1 windSum=-1 -1->0 (max=-1) done=1 tiny=0 opp=0
 debugShowSort [1] {{3,2}, {0,2}} tStart=0.333333333 tEnd=1 sign=-1 windValue=1 windSum=1 0->1 (max=1) done=1 tiny=0 opp=1
 findNextOp firstIndex=[2] sign=1
 activeOp op=diff miFrom=1 miTo=0 suFrom=1 suTo=1 result=0
 activeOp op=diff miFrom=0 miTo=0 suFrom=1 suTo=0 result=0
 activeOp op=diff miFrom=0 miTo=1 suFrom=0 suTo=0 result=1
 markDoneBinary id=3 (1,5 2,3 2,0 3,2) t=0.447821962 [1] (1.92144883,2.25028419) tEnd=0.5 newWindSum=-1 newOppSum=1 oppSum=1 windSum=-1 windValue=1
 findNextOp from:[3] to:[2] start=4 end=5
 bridgeOp current id=3 from=(1.92144883,2.25028419) to=(2,2)
 path.cubicTo(1.94782197,2.1619792, 1.97391093,2.0782671, 2,2);
 path.close();
 debugShowActiveSpans id=3 (1,5 2,3 2,0 3,2) t=0 (1,5) tEnd=0.447821962 other=4 otherT=1 otherIndex=4 windSum=-1 windValue=1 oppValue=0
 debugShowActiveSpans id=4 (3,2 1,5) t=0 (3,2) tEnd=1 other=3 otherT=1 otherIndex=3 windSum=-1 windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,2 2,3 5,1 3,2) t=0.5 (3,2) tEnd=1 other=4 otherT=0 otherIndex=1 windSum=1 windValue=1 oppValue=0
 activeOp op=diff miFrom=0 miTo=1 suFrom=0 suTo=0 result=1
 findNextOp debugShowSort contourWinding=1 oppContourWinding=0 sign=1
 debugShowSort [1] {{0,2}, {2,3}, {5,1}, {3,2}} tStart=1 tEnd=0.5 sign=1 windValue=1 windSum=1 1->0 (max=1) done=0 tiny=0 opp=0
 debugShowSort [2] {{1,5}, {2,3}, {2,0}, {3,2}} tStart=1 tEnd=0.5 sign=1 windValue=1 windSum=-1 0->-1 (max=-1) done=1 tiny=0 opp=1
 debugShowSort [3] {{3,2}, {0,2}} tStart=0 tEnd=0.333333333 sign=-1 windValue=1 windSum=1 0->1 (max=1) done=1 tiny=0 opp=0
 debugShowSort [4] {{0,2}, {2,3}, {5,1}, {3,2}} tStart=0.5 tEnd=0.302178051 sign=1 windValue=1 windSum=1 1->0 (max=1) done=1 tiny=0 opp=0
 debugShowSort [5] {{3,2}, {1,5}} tStart=0 tEnd=1 sign=-1 windValue=1 windSum=-1 -1->0 (max=-1) done=0 tiny=0 opp=1
 debugShowSort [0] {{0,2}, {2,3}, {5,1}, {3,2}} tStart=0.5 tEnd=1 sign=-1 windValue=1 windSum=1 0->1 (max=1) done=0 tiny=0 opp=0
 findNextOp firstIndex=[1] sign=1
 activeOp op=diff miFrom=0 miTo=0 suFrom=0 suTo=1 result=0
 activeOp op=diff miFrom=0 miTo=1 suFrom=1 suTo=1 result=0
 activeOp op=diff miFrom=1 miTo=0 suFrom=1 suTo=1 result=0
 activeOp op=diff miFrom=0 miTo=0 suFrom=1 suTo=0 result=0
 activeOp op=diff miFrom=0 miTo=1 suFrom=0 suTo=0 result=1
 markDoneBinary id=1 (0,2 2,3 5,1 3,2) t=0.5 [2] (3,2) tEnd=0.5 newWindSum=1 newOppSum=0 oppSum=0 windSum=1 windValue=1
 markDoneBinary id=1 (0,2 2,3 5,1 3,2) t=0.5 [3] (3,2) tEnd=0.5 newWindSum=1 newOppSum=0 oppSum=0 windSum=1 windValue=1
 markDoneBinary id=1 (0,2 2,3 5,1 3,2) t=0.5 [4] (3,2) tEnd=1 newWindSum=1 newOppSum=0 oppSum=0 windSum=1 windValue=1
 findNextOp from:[1] to:[1] start=3 end=5
 bridgeOp current id=1 from=(3,2) to=(3,2)
 path.moveTo(3,2);
 path.cubicTo(3.75,1.75, 4,1.5, 3,2);
 path.close();
 debugShowActiveSpans id=3 (1,5 2,3 2,0 3,2) t=0 (1,5) tEnd=0.447821962 other=4 otherT=1 otherIndex=4 windSum=-1 windValue=1 oppValue=0
 debugShowActiveSpans id=4 (3,2 1,5) t=0 (3,2) tEnd=1 other=3 otherT=1 otherIndex=3 windSum=-1 windValue=1 oppValue=0
 activeOp op=diff miFrom=1 miTo=1 suFrom=1 suTo=0 result=1
 findNextOp simple
 markDoneBinary id=4 (3,2 1,5) t=0 [0] (3,2) tEnd=0 newWindSum=-1 newOppSum=1 oppSum=1 windSum=-1 windValue=1
 markDoneBinary id=4 (3,2 1,5) t=0 [1] (3,2) tEnd=0 newWindSum=-1 newOppSum=1 oppSum=1 windSum=-1 windValue=1
 markDoneBinary id=4 (3,2 1,5) t=0 [2] (3,2) tEnd=0 newWindSum=-1 newOppSum=1 oppSum=1 windSum=-1 windValue=1
 markDoneBinary id=4 (3,2 1,5) t=0 [3] (3,2) tEnd=1 newWindSum=-1 newOppSum=1 oppSum=1 windSum=-1 windValue=1
 bridgeOp current id=4 from=(3,2) to=(1,5)
 findNextOp debugShowSort contourWinding=0 oppContourWinding=1 sign=1
 debugShowSort [3] {{1,5}, {2,3}, {2,0}, {3,2}} tStart=0.447821962 tEnd=0 sign=1 windValue=1 windSum=-1 0->-1 (max=-1) done=0 tiny=0 opp=0
 debugShowSort [0] {{0,2}, {2,3}, {5,1}, {3,2}} tStart=0.302178051 tEnd=0.5 sign=-1 windValue=1 windSum=1 1->2 (max=2) done=1 tiny=0 opp=1
 debugShowSort [1] {{1,5}, {2,3}, {2,0}, {3,2}} tStart=0.447821962 tEnd=0.5 sign=-1 windValue=1 windSum=-1 -1->0 (max=-1) done=1 tiny=0 opp=0
 debugShowSort [2] {{0,2}, {2,3}, {5,1}, {3,2}} tStart=0.302178051 tEnd=0 sign=1 windValue=1 windSum=1 2->1 (max=2) done=1 tiny=0 opp=1
 findNextOp firstIndex=[3] sign=1
 activeOp op=diff miFrom=1 miTo=1 suFrom=1 suTo=1 result=0
 activeOp op=diff miFrom=1 miTo=1 suFrom=1 suTo=0 result=1
 activeOp op=diff miFrom=1 miTo=1 suFrom=0 suTo=0 result=0
 markDoneBinary id=3 (1,5 2,3 2,0 3,2) t=0 [0] (1,5) tEnd=0.447821962 newWindSum=-1 newOppSum=1 oppSum=1 windSum=-1 windValue=1
 findNextOp from:[3] to:[3] start=1 end=2
 bridgeOp current id=3 from=(1,5) to=(1.92144883,2.25028419)
 path.moveTo(3,2);
 path.lineTo(1,5);
 path.cubicTo(1.44782197,4.10435629, 1.69509947,3.00816751, 1.92144883,2.25028419);
 </div>

 <div id="cubicOp48da">
   {{0,2}, {2,3}, {5,1}, {3,2}},

   {{0,2}, {0.796711951,2.36012932}, {1.63878124,2.27837338}},
   {{1.63878124,2.27837338}, {2.48085053,2.19661745}, {3.06246392,1.97878949}},
   {{3.06246392,1.97878949}, {3.64407731,1.76096154}, {3.65942155,1.71287481}},
   {{3.65942155,1.71287481}, {3.66835761,1.67480112}, {3,2}},
 </div>

 <div id="cubicOp32d">
   SimplifyNew_Test [cubicOp32d]
 {{0,1}, {1,2}, {6,0}, {3,1}},
 {{3,1}, {0,1}},
 op difference
 {{0,6}, {1,3}, {1,0}, {2,1}},
 {{2,1}, {0,6}},
 insert t=0.5 pts roughly equal
 insert t=0.5 pts roughly equal
 insert t=0.5 pts roughly equal
 debugShowCubicIntersection wtTs[0]=1 {{0,1}, {1,2}, {6,0}, {3,1}} {{3,1}} wtTs[1]=0.5
 insert t=0.5 pts roughly equal
 debugShowCubicLineIntersection wtTs[0]=0 {{0,1}, {1,2}, {6,0}, {3,1}} {{0,1}} wtTs[1]=0.5 {{3,1}} wtTs[2]=1 {{3,1}} wnTs[0]=1 {{3,1}, {0,1}} wnTs[1]=0 wnTs[2]=0
 debugShowCubicIntersection wtTs[0]=0.235702334 {{0,1}, {1,2}, {6,0}, {3,1}} {{1.2166390977965289,1.2856741834504377}} wnTs[0]=0.640711 {{0,6}, {1,3}, {1,0}, {2,1}}
 debugShowCubicLineIntersection wtTs[0]=0.336702456 {{0,1}, {1,2}, {6,0}, {3,1}} {{1.9124722896380537,1.2188192759048657}} wnTs[0]=0.0437639 {{2,1}, {0,6}}
 debugShowCubicLineIntersection wtTs[0]=0.724744871 {{0,6}, {1,3}, {1,0}, {2,1}} {{1.359821149611685,1.0000000000000004}} wtTs[1]=1 {{2,1}} wnTs[0]=0.546726 {{3,1}, {0,1}} wnTs[1]=0.333333333
 debugShowLineIntersection wtTs[0]=0 {{3,1}, {0,1}} {{2,1}} wnTs[0]=0.333333 {{2,1}, {0,6}}
 debugShowCubicIntersection no self intersect {{0,6}, {1,3}, {1,0}, {2,1}}
 debugShowCubicLineIntersection wtTs[0]=0 {{0,6}, {1,3}, {1,0}, {2,1}} {{0,6}} wtTs[1]=1 {{2,1}} wnTs[0]=1 {{2,1}, {0,6}} wnTs[1]=0
 debugShowActiveSpans id=1 (0,1 1,2 6,0 3,1) t=0 (0,1) tEnd=0.235702334 other=2 otherT=1 otherIndex=5 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,1 1,2 6,0 3,1) t=0.235702334 (1.21663904,1.28567421) tEnd=0.336702456 other=3 otherT=0.640711351 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,1 1,2 6,0 3,1) t=0.336702456 (1.91247225,1.21881926) tEnd=0.5 other=4 otherT=0.0437638552 otherIndex=2 windSum=? windValue=1 oppValue=0
 </div>

 <div id="cubicOp48db">
 computed quadratics given
   {{0,2}, {2,3}, {5,1}, {3,2}},
   {{1,5}, {2,3}, {2,0}, {3,2}},
 computed quadratics set 1
   {{0,2}, {0.796711951,2.36012932}, {1.63878124,2.27837338}},
   {{1.63878124,2.27837338}, {2.48085053,2.19661745}, {3.06246392,1.97878949}},
   {{3.06246392,1.97878949}, {3.64407731,1.76096154}, {3.65942155,1.71287481}},
   {{3.65942155,1.71287481}, {3.66835761,1.67480112}, {3,2}},
 computed quadratics set 2
   {{1,5}, {1.50173477,3.89061296}, {1.76597918,2.79793753}},
   {{1.76597918,2.79793753}, {2.0153684,1.78464605}, {2.27205088,1.42969352}},
   {{2.27205088,1.42969352}, {2.52873337,1.07474099}, {3,2}},
 </div>

 <div id="cubicOp48dc">
   {{1.63878124,2.27837338}, {2.48085053,2.19661745}, {3.06246392,1.97878949}},
   {{2.27205088,1.42969352}, {2.52873337,1.07474099}, {3,2}},
 </div>

 <div id="cubicOp49d">
   SimplifyNew_Test [cubicOp49d]
 {{0,2}, {1,5}, {3,2}, {4,1}},
 {{4,1}, {0,2}},
 op difference
 {{2,3}, {1,4}, {2,0}, {5,1}},
 {{5,1}, {2,3}},
 debugShowCubicIntersection no self intersect {{2,3}, {1,4}, {2,0}, {5,1}}
 debugShowCubicLineIntersection wtTs[0]=0 {{2,3}, {1,4}, {2,0}, {5,1}} {{2,3}} wtTs[1]=1 {{5,1}} wnTs[0]=1 {{5,1}, {2,3}} wnTs[1]=0
 debugShowCubicIntersection wtTs[0]=1.74609417e-09 {{2,3}, {1,4}, {2,0}, {5,1}} {{1.9999999947617175,3.0000000052382827}} wtTs[1]=0.122781788 {{1.7221068406383582,3.1607246577308117}} wnTs[0]=0.5 {{0,2}, {1,5}, {3,2}, {4,1}} wnTs[1]=0.438140761
 debugShowCubicLineIntersection wtTs[0]=0.651913155 {{2,3}, {1,4}, {2,0}, {5,1}} {{2.5942051033446676,1.3514487241638331}} wnTs[0]=0.351449 {{4,1}, {0,2}}
 debugShowCubicLineIntersection wtTs[0]=0.5 {{0,2}, {1,5}, {3,2}, {4,1}} {{2,3}} wnTs[0]=1 {{5,1}, {2,3}}
 debugShowLineIntersection no intersect {{5,1}, {2,3}} {{4,1}, {0,2}}
 debugShowCubicIntersection no self intersect {{0,2}, {1,5}, {3,2}, {4,1}}
 debugShowCubicLineIntersection wtTs[0]=0 {{0,2}, {1,5}, {3,2}, {4,1}} {{0,2}} wtTs[1]=1 {{4,1}} wnTs[0]=1 {{4,1}, {0,2}} wnTs[1]=0
 debugShowActiveSpans id=3 (2,3 1,4 2,0 5,1) t=1.74609417e-09 (2,3) tEnd=0.122781788 other=1 otherT=0.499999999 otherIndex=2 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (2,3 1,4 2,0 5,1) t=0.122781788 (1.72210681,3.16072464) tEnd=0.651913155 other=1 otherT=0.438140761 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (2,3 1,4 2,0 5,1) t=0.651913155 (2.59420514,1.35144877) tEnd=1 other=2 otherT=0.351448724 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=4 (5,1 2,3) t=0 (5,1) tEnd=1 other=3 otherT=1 otherIndex=4 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,2 1,5 3,2 4,1) t=0 (0,2) tEnd=0.438140761 other=2 otherT=1 otherIndex=2 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,2 1,5 3,2 4,1) t=0.438140761 (1.72210681,3.16072464) tEnd=0.499999999 other=3 otherT=0.122781788 otherIndex=2 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,2 1,5 3,2 4,1) t=0.5 (2,3) tEnd=1 other=4 otherT=1 otherIndex=2 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=2 (4,1 0,2) t=0 (4,1) tEnd=0.351448724 other=1 otherT=1 otherIndex=4 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=2 (4,1 0,2) t=0.351448724 (2.59420514,1.35144877) tEnd=1 other=3 otherT=0.651913155 otherIndex=3 windSum=? windValue=1 oppValue=0
 findTop debugShowSort contourWinding=0 oppContourWinding=0 sign=-1
 debugShowSort [1] {{2,3}, {1,4}, {2,0}, {5,1}} tStart=0.122781788 tEnd=0.651913155 sign=-1 windValue=1 windSum=? 0->1 (max=1) done=0 tiny=0 opp=0
 debugShowSort [2] {{0,2}, {1,5}, {3,2}, {4,1}} tStart=0.438140761 tEnd=0 sign=1 windValue=1 windSum=? 0->-1 (max=-1) done=0 tiny=0 opp=1
 debugShowSort [3] {{2,3}, {1,4}, {2,0}, {5,1}} tStart=0.122781788 tEnd=1.74609417e-09 sign=1 windValue=1 windSum=? 1->0 (max=1) done=0 tiny=0 opp=0
 debugShowSort [0] {{0,2}, {1,5}, {3,2}, {4,1}} tStart=0.438140761 tEnd=0.499999999 sign=-1 windValue=1 windSum=? -1->0 (max=-1) done=0 tiny=0 opp=1
 findTop swap
 markWinding id=3 (2,3 1,4 2,0 5,1) t=0.122781788 [2] (1.72210681,3.16072464) tEnd=0.651913155 newWindSum=-1 newOppSum=0 oppSum=? windSum=? windValue=1
 markWinding id=3 (2,3 1,4 2,0 5,1) t=0.122781788 [2] (1.72210681,3.16072464) tEnd=0.651913155 newWindSum=-1 newOppSum=0 oppSum=0 windSum=-1 windValue=1
 activeOp op=diff miFrom=0 miTo=0 suFrom=1 suTo=0 result=0
 markDoneBinary id=3 (2,3 1,4 2,0 5,1) t=0.122781788 [2] (1.72210681,3.16072464) tEnd=0.651913155 newWindSum=-1 newOppSum=0 oppSum=0 windSum=-1 windValue=1
 findChaseOp debugShowSort contourWinding=? oppContourWinding=? sign=1
 debugShowSort [0] {{4,1}, {0,2}} tStart=0.351448724 tEnd=0 sign=1 windValue=1 windSum=? ?->? (max=?) done=0 tiny=0 opp=0
 debugShowSort [1] {{2,3}, {1,4}, {2,0}, {5,1}} tStart=0.651913155 tEnd=1 sign=-1 windValue=1 windSum=? ?->? (max=?) done=0 tiny=0 opp=1
 debugShowSort [2] {{4,1}, {0,2}} tStart=0.351448724 tEnd=1 sign=-1 windValue=1 windSum=? ?->? (max=?) done=0 tiny=0 opp=0
 debugShowSort [3] {{2,3}, {1,4}, {2,0}, {5,1}} tStart=0.651913155 tEnd=0.122781788 sign=1 windValue=1 windSum=-1 ?->? (max=?) done=1 tiny=0 opp=1
 findChaseOp debugShowSort contourWinding=0 oppContourWinding=0 sign=1
 debugShowSort [3] {{2,3}, {1,4}, {2,0}, {5,1}} tStart=0.651913155 tEnd=0.122781788 sign=1 windValue=1 windSum=-1 0->-1 (max=-1) done=1 tiny=0 opp=0
 debugShowSort [0] {{4,1}, {0,2}} tStart=0.351448724 tEnd=0 sign=1 windValue=1 windSum=? 0->-1 (max=-1) done=0 tiny=0 opp=1
 debugShowSort [1] {{2,3}, {1,4}, {2,0}, {5,1}} tStart=0.651913155 tEnd=1 sign=-1 windValue=1 windSum=? -1->0 (max=-1) done=0 tiny=0 opp=0
 debugShowSort [2] {{4,1}, {0,2}} tStart=0.351448724 tEnd=1 sign=-1 windValue=1 windSum=? -1->0 (max=-1) done=0 tiny=0 opp=1
 markWinding id=2 (4,1 0,2) t=0 [0] (4,1) tEnd=0.351448724 newWindSum=-1 newOppSum=-1 oppSum=? windSum=? windValue=1
 markWinding id=1 (0,2 1,5 3,2 4,1) t=0.5 [3] (2,3) tEnd=1 newWindSum=-1 newOppSum=-1 oppSum=? windSum=? windValue=1
 markWinding id=3 (2,3 1,4 2,0 5,1) t=0.651913155 [3] (2.59420514,1.35144877) tEnd=1 newWindSum=-1 newOppSum=-1 oppSum=? windSum=? windValue=1
 markWinding id=4 (5,1 2,3) t=0 [0] (5,1) tEnd=1 newWindSum=-1 newOppSum=-1 oppSum=? windSum=? windValue=1
 markWinding id=2 (4,1 0,2) t=0.351448724 [1] (2.59420514,1.35144877) tEnd=1 newWindSum=-1 newOppSum=0 oppSum=? windSum=? windValue=1
 markWinding id=1 (0,2 1,5 3,2 4,1) t=0 [0] (0,2) tEnd=0.438140761 newWindSum=-1 newOppSum=0 oppSum=? windSum=? windValue=1
 debugShowActiveSpans id=3 (2,3 1,4 2,0 5,1) t=1.74609417e-09 (2,3) tEnd=0.122781788 other=1 otherT=0.499999999 otherIndex=2 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (2,3 1,4 2,0 5,1) t=0.651913155 (2.59420514,1.35144877) tEnd=1 other=2 otherT=0.351448724 otherIndex=1 windSum=-1 windValue=1 oppValue=0
 debugShowActiveSpans id=4 (5,1 2,3) t=0 (5,1) tEnd=1 other=3 otherT=1 otherIndex=4 windSum=-1 windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,2 1,5 3,2 4,1) t=0 (0,2) tEnd=0.438140761 other=2 otherT=1 otherIndex=2 windSum=-1 windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,2 1,5 3,2 4,1) t=0.438140761 (1.72210681,3.16072464) tEnd=0.499999999 other=3 otherT=0.122781788 otherIndex=2 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,2 1,5 3,2 4,1) t=0.5 (2,3) tEnd=1 other=4 otherT=1 otherIndex=2 windSum=-1 windValue=1 oppValue=0
 debugShowActiveSpans id=2 (4,1 0,2) t=0 (4,1) tEnd=0.351448724 other=1 otherT=1 otherIndex=4 windSum=-1 windValue=1 oppValue=0
 debugShowActiveSpans id=2 (4,1 0,2) t=0.351448724 (2.59420514,1.35144877) tEnd=1 other=3 otherT=0.651913155 otherIndex=3 windSum=-1 windValue=1 oppValue=0
 activeOp op=diff miFrom=0 miTo=1 suFrom=1 suTo=1 result=0
 markDoneBinary id=2 (4,1 0,2) t=0 [0] (4,1) tEnd=0.351448724 newWindSum=-1 newOppSum=-1 oppSum=-1 windSum=-1 windValue=1
 markDoneBinary id=1 (0,2 1,5 3,2 4,1) t=0.5 [3] (2,3) tEnd=1 newWindSum=-1 newOppSum=-1 oppSum=-1 windSum=-1 windValue=1
 setSpans unsortable [1] (2,3) [2] (1.72210681,3.16072464)
 debugShowActiveSpans id=3 (2,3 1,4 2,0 5,1) t=1.74609417e-09 (2,3) tEnd=0.122781788 other=1 otherT=0.499999999 otherIndex=2 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (2,3 1,4 2,0 5,1) t=0.651913155 (2.59420514,1.35144877) tEnd=1 other=2 otherT=0.351448724 otherIndex=1 windSum=-1 windValue=1 oppValue=0
 debugShowActiveSpans id=4 (5,1 2,3) t=0 (5,1) tEnd=1 other=3 otherT=1 otherIndex=4 windSum=-1 windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,2 1,5 3,2 4,1) t=0 (0,2) tEnd=0.438140761 other=2 otherT=1 otherIndex=2 windSum=-1 windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,2 1,5 3,2 4,1) t=0.438140761 (1.72210681,3.16072464) tEnd=0.499999999 other=3 otherT=0.122781788 otherIndex=2 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=2 (4,1 0,2) t=0.351448724 (2.59420514,1.35144877) tEnd=1 other=3 otherT=0.651913155 otherIndex=3 windSum=-1 windValue=1 oppValue=0
 activeOp op=diff miFrom=1 miTo=1 suFrom=0 suTo=1 result=1
 findNextOp simple
 markDoneBinary id=4 (5,1 2,3) t=0 [0] (5,1) tEnd=1 newWindSum=-1 newOppSum=-1 oppSum=-1 windSum=-1 windValue=1
 bridgeOp current id=4 from=(2,3) to=(5,1)
 findNextOp debugShowSort contourWinding=-1 oppContourWinding=-1 sign=-1
 debugShowSort [1] {{2,3}, {1,4}, {2,0}, {5,1}} tStart=0.651913155 tEnd=1 sign=-1 windValue=1 windSum=-1 -1->0 (max=-1) done=0 tiny=0 opp=0
 debugShowSort [2] {{4,1}, {0,2}} tStart=0.351448724 tEnd=1 sign=-1 windValue=1 windSum=-1 -1->0 (max=-1) done=0 tiny=0 opp=1
 debugShowSort [3] {{2,3}, {1,4}, {2,0}, {5,1}} tStart=0.651913155 tEnd=0.122781788 sign=1 windValue=1 windSum=-1 0->-1 (max=-1) done=1 tiny=0 opp=0
 debugShowSort [0] {{4,1}, {0,2}} tStart=0.351448724 tEnd=0 sign=1 windValue=1 windSum=-1 0->-1 (max=-1) done=1 tiny=0 opp=1
 findNextOp firstIndex=[1] sign=-1
 activeOp op=diff miFrom=1 miTo=0 suFrom=0 suTo=0 result=1
 activeOp op=diff miFrom=0 miTo=0 suFrom=0 suTo=1 result=0
 activeOp op=diff miFrom=0 miTo=1 suFrom=1 suTo=1 result=0
 markDoneBinary id=3 (2,3 1,4 2,0 5,1) t=0.651913155 [3] (2.59420514,1.35144877) tEnd=1 newWindSum=-1 newOppSum=-1 oppSum=-1 windSum=-1 windValue=1
 findNextOp from:[3] to:[2] start=1 end=2
 bridgeOp current id=3 from=(5,1) to=(2.59420514,1.35144877)
 path.moveTo(2,3);
 path.lineTo(5,1);
 path.cubicTo(3.9557395,0.651913166, 3.15380788,0.909648538, 2.59420514,1.35144877);
 findNextOp simple
 markDoneBinary id=2 (4,1 0,2) t=0.351448724 [1] (2.59420514,1.35144877) tEnd=1 newWindSum=-1 newOppSum=0 oppSum=0 windSum=-1 windValue=1
 bridgeOp current id=2 from=(2.59420514,1.35144877) to=(0,2)
 findNextOp debugShowSort contourWinding=0 oppContourWinding=0 sign=1
 debugShowSort [2] {{0,2}, {1,5}, {3,2}, {4,1}} tStart=0.438140761 tEnd=0 sign=1 windValue=1 windSum=-1 0->-1 (max=-1) done=0 tiny=0 opp=0
 debugShowSort [3] {{2,3}, {1,4}, {2,0}, {5,1}} tStart=0.122781788 tEnd=1.74609417e-09 sign=1 windValue=1 windSum=? 0->-1 (max=-1) done=0 tiny=0 opp=1
 debugShowSort [0] {{0,2}, {1,5}, {3,2}, {4,1}} tStart=0.438140761 tEnd=0.499999999 sign=-1 windValue=1 windSum=? -1->0 (max=-1) done=0 tiny=0 opp=0
 debugShowSort [1] {{2,3}, {1,4}, {2,0}, {5,1}} tStart=0.122781788 tEnd=0.651913155 sign=-1 windValue=1 windSum=-1 -1->0 (max=-1) done=1 tiny=0 opp=1
 findNextOp firstIndex=[2] sign=1
 activeOp op=diff miFrom=1 miTo=1 suFrom=0 suTo=1 result=1
 markWinding id=3 (2,3 1,4 2,0 5,1) t=1.74609417e-09 [1] (2,3) tEnd=0.122781788 newWindSum=-1 newOppSum=-1 oppSum=? windSum=? windValue=1
 findNextOp chase.append id=3
 activeOp op=diff miFrom=1 miTo=0 suFrom=1 suTo=1 result=0
 markDoneBinary id=1 (0,2 1,5 3,2 4,1) t=0.438140761 [1] (1.72210681,3.16072464) tEnd=0.499999999 newWindSum=-1 newOppSum=-1 oppSum=? windSum=? windValue=1
 findNextOp chase.append id=1
 activeOp op=diff miFrom=0 miTo=0 suFrom=1 suTo=0 result=0
 markDoneBinary id=1 (0,2 1,5 3,2 4,1) t=0 [0] (0,2) tEnd=0.438140761 newWindSum=-1 newOppSum=0 oppSum=0 windSum=-1 windValue=1
 findNextOp from:[1] to:[3] start=2 end=1
 bridgeOp current id=1 from=(0,2) to=(1.72210681,3.16072464)
 path.lineTo(0,2);
 path.cubicTo(0.43814075,3.31442237, 1.06824887,3.47704053, 1.72210681,3.16072464);
 setSpans unsortable [1] (2,3) [2] (1.72210681,3.16072464)
 setSpans all tiny unsortable [2] (2,3) [1] (1.72210681,3.16072464)
 markUnsortable id=3 (2,3 1,4 2,0 5,1) t=1.74609417e-09 [1] (2,3) tEnd=0.122781788 newWindSum=0 windSum=-1 windValue=1
 markUnsortable id=3 (2,3 1,4 2,0 5,1) t=0 [0] (2,3) tEnd=1.74609417e-09 newWindSum=0 windSum=? windValue=1
 markUnsortable id=1 (0,2 1,5 3,2 4,1) t=0.499999999 [2] (2,3) tEnd=0.5 newWindSum=0 windSum=? windValue=1
 markUnsortable id=1 (0,2 1,5 3,2 4,1) t=0.438140761 [1] (1.72210681,3.16072464) tEnd=0.499999999 newWindSum=0 windSum=-1 windValue=1
 findNextOp debugShowSort contourWinding=-1 oppContourWinding=-1 sign=-1
 debugShowSort [0] *** UNSORTABLE *** {{2,3}, {1,4}, {2,0}, {5,1}} tStart=1.74609417e-09 tEnd=0.122781788 sign=-1 windValue=1 windSum=-1 -1->0 (max=-1) done=0 tiny=0 opp=0
 debugShowSort [1] *** UNSORTABLE *** {{2,3}, {1,4}, {2,0}, {5,1}} tStart=1.74609417e-09 tEnd=0 sign=1 windValue=1 windSum=? 0->-1 (max=-1) done=1 tiny=1 opp=0
 debugShowSort [2] *** UNSORTABLE *** {{0,2}, {1,5}, {3,2}, {4,1}} tStart=0.499999999 tEnd=0.5 sign=-1 windValue=1 windSum=? -1->0 (max=-1) done=1 tiny=1 opp=1
 debugShowSort [3] *** UNSORTABLE *** {{0,2}, {1,5}, {3,2}, {4,1}} tStart=0.499999999 tEnd=0.438140761 sign=1 windValue=1 windSum=-1 0->-1 (max=-1) done=1 tiny=0 opp=1
 path.cubicTo(1.78458714,3.17018676, 1.87721825,3.12278175, 2,3);
 markDoneBinary id=3 (2,3 1,4 2,0 5,1) t=1.74609417e-09 [1] (2,3) tEnd=0.122781788 newWindSum=-1 newOppSum=-1 oppSum=-1 windSum=-1 windValue=1
 path.close();
 setSpans all tiny unsortable [2] (2,3) [1] (1.72210681,3.16072464)
 setSpans unsortable [1] (2,3) [2] (1.72210681,3.16072464)
 setSpans unsortable [1] (2,3) [2] (1.72210681,3.16072464)
 setSpans all tiny unsortable [2] (2,3) [1] (1.72210681,3.16072464)
 setSpans unsortable [1] (2,3) [2] (1.72210681,3.16072464)
 assemble
 assemble contour    start=(2,3) end=(2,3)
 </div>

 <div id="cubicOp50d">
   SimplifyNew_Test [cubicOp50d]
 {{0,3}, {1,6}, {5,0}, {5,1}},
 {{5,1}, {0,3}},
 op difference
 {{0,5}, {1,5}, {3,0}, {6,1}},
 {{6,1}, {0,5}},
 debugShowCubicIntersection no self intersect {{0,5}, {1,5}, {3,0}, {6,1}}
 debugShowCubicLineIntersection wtTs[0]=0 {{0,5}, {1,5}, {3,0}, {6,1}} {{0,5}} wtTs[1]=0.181818182 {{0.64462809917355357,4.5702479338842981}} wtTs[2]=1 {{6,1}} wnTs[0]=1 {{6,1}, {0,5}} wnTs[1]=0.892561983 wnTs[2]=0
 debugShowCubicIntersection wtTs[0]=0.326064989 {{0,5}, {1,5}, {3,0}, {6,1}} {{1.2971500960309803,3.7865580517965118}} wnTs[0]=0.265062 {{0,3}, {1,6}, {5,0}, {5,1}}
 debugShowCubicLineIntersection wtTs[0]=0.639696212 {{0,5}, {1,5}, {3,0}, {6,1}} {{3.1467223651509295,1.7413110539396279}} wnTs[0]=0.370656 {{5,1}, {0,3}}
 debugShowCubicLineIntersection no intersect {{0,3}, {1,6}, {5,0}, {5,1}} {{6,1}, {0,5}}
 debugShowLineIntersection no intersect {{6,1}, {0,5}} {{5,1}, {0,3}}
 debugShowCubicIntersection no self intersect {{0,3}, {1,6}, {5,0}, {5,1}}
 debugShowCubicLineIntersection wtTs[0]=0 {{0,3}, {1,6}, {5,0}, {5,1}} {{0,3}} wtTs[1]=0.772727273 {{4.4623403456048081,1.2150638617580767}} wtTs[2]=1 {{5,1}} wnTs[0]=1 {{5,1}, {0,3}} wnTs[1]=0.107531931 wnTs[2]=0
 debugShowActiveSpans id=3 (0,5 1,5 3,0 6,1) t=0 (0,5) tEnd=0.181818182 other=4 otherT=1 otherIndex=2 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (0,5 1,5 3,0 6,1) t=0.181818182 (0.644628108,4.57024813) tEnd=0.326064989 other=4 otherT=0.892561983 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (0,5 1,5 3,0 6,1) t=0.326064989 (1.29715014,3.78655815) tEnd=0.639696212 other=1 otherT=0.26506234 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (0,5 1,5 3,0 6,1) t=0.639696212 (3.14672232,1.74131107) tEnd=1 other=2 otherT=0.370655527 otherIndex=2 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=4 (6,1 0,5) t=0 (6,1) tEnd=0.892561983 other=3 otherT=1 otherIndex=4 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=4 (6,1 0,5) t=0.892561983 (0.644628108,4.57024813) tEnd=1 other=3 otherT=0.181818182 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,3 1,6 5,0 5,1) t=0 (0,3) tEnd=0.26506234 other=2 otherT=1 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,3 1,6 5,0 5,1) t=0.26506234 (1.29715014,3.78655815) tEnd=0.772727273 other=3 otherT=0.326064989 otherIndex=2 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,3 1,6 5,0 5,1) t=0.772727273 (4.46234035,1.21506381) tEnd=1 other=2 otherT=0.107531931 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=2 (5,1 0,3) t=0 (5,1) tEnd=0.107531931 other=1 otherT=1 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=2 (5,1 0,3) t=0.107531931 (4.46234035,1.21506381) tEnd=0.370655527 other=1 otherT=0.772727273 otherIndex=2 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=2 (5,1 0,3) t=0.370655527 (3.14672232,1.74131107) tEnd=1 other=3 otherT=0.639696212 otherIndex=3 windSum=? windValue=1 oppValue=0
 findTop debugShowSort contourWinding=0 oppContourWinding=0 sign=1
 debugShowSort [0] {{0,3}, {1,6}, {5,0}, {5,1}} tStart=1 tEnd=0.772727273 sign=1 windValue=1 windSum=? 0->-1 (max=-1) done=0 tiny=0 opp=0
 debugShowSort [1] {{5,1}, {0,3}} tStart=0 tEnd=0.107531931 sign=-1 windValue=1 windSum=? -1->0 (max=-1) done=0 tiny=0 opp=0
 markWinding id=1 (0,3 1,6 5,0 5,1) t=0.772727273 [2] (4.46234035,1.21506381) tEnd=1 newWindSum=-1 newOppSum=0 oppSum=? windSum=? windValue=1
 markWinding id=2 (5,1 0,3) t=0 [0] (5,1) tEnd=0.107531931 newWindSum=-1 newOppSum=0 oppSum=? windSum=? windValue=1
 markWinding id=1 (0,3 1,6 5,0 5,1) t=0.772727273 [2] (4.46234035,1.21506381) tEnd=1 newWindSum=-1 newOppSum=0 oppSum=0 windSum=-1 windValue=1
 activeOp op=diff miFrom=1 miTo=0 suFrom=0 suTo=0 result=1
 findNextOp simple
 markDoneBinary id=1 (0,3 1,6 5,0 5,1) t=0.772727273 [2] (4.46234035,1.21506381) tEnd=1 newWindSum=-1 newOppSum=0 oppSum=0 windSum=-1 windValue=1
 bridgeOp current id=1 from=(4.46234035,1.21506381) to=(5,1)
 path.moveTo(4.46234035,1.21506381);
 path.cubicTo(4.79338837,0.90702486, 5,0.772727251, 5,1);
 findNextOp debugShowSort contourWinding=0 oppContourWinding=0 sign=1
 debugShowSort [0] {{5,1}, {0,3}} tStart=0.107531931 tEnd=0 sign=1 windValue=1 windSum=-1 0->-1 (max=-1) done=0 tiny=0 opp=0
 debugShowSort [1] {{0,3}, {1,6}, {5,0}, {5,1}} tStart=0.772727273 tEnd=1 sign=-1 windValue=1 windSum=-1 -1->0 (max=-1) done=1 tiny=0 opp=0
 debugShowSort [2] {{5,1}, {0,3}} tStart=0.107531931 tEnd=0.370655527 sign=-1 windValue=1 windSum=? 0->1 (max=1) done=0 tiny=0 opp=0
 debugShowSort [3] {{0,3}, {1,6}, {5,0}, {5,1}} tStart=0.772727273 tEnd=0.26506234 sign=1 windValue=1 windSum=? 1->0 (max=1) done=0 tiny=0 opp=0
 findNextOp firstIndex=[0] sign=1
 activeOp op=diff miFrom=1 miTo=0 suFrom=0 suTo=0 result=1
 activeOp op=diff miFrom=0 miTo=1 suFrom=0 suTo=0 result=1
 markWinding id=2 (5,1 0,3) t=0.107531931 [1] (4.46234035,1.21506381) tEnd=0.370655527 newWindSum=1 newOppSum=0 oppSum=? windSum=? windValue=1
 findNextOp chase.append id=2
 activeOp op=diff miFrom=1 miTo=0 suFrom=0 suTo=0 result=1
 markWinding id=1 (0,3 1,6 5,0 5,1) t=0.26506234 [1] (1.29715014,3.78655815) tEnd=0.772727273 newWindSum=1 newOppSum=0 oppSum=? windSum=? windValue=1
 findNextOp chase.append id=1
 markDoneBinary id=2 (5,1 0,3) t=0 [0] (5,1) tEnd=0.107531931 newWindSum=-1 newOppSum=0 oppSum=0 windSum=-1 windValue=1
 findNextOp from:[2] to:[1] start=2 end=1
 bridgeOp current id=2 from=(5,1) to=(4.46234035,1.21506381)
 path.lineTo(4.46234035,1.21506381);
 path.close();
 debugShowActiveSpans id=3 (0,5 1,5 3,0 6,1) t=0 (0,5) tEnd=0.181818182 other=4 otherT=1 otherIndex=2 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (0,5 1,5 3,0 6,1) t=0.181818182 (0.644628108,4.57024813) tEnd=0.326064989 other=4 otherT=0.892561983 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (0,5 1,5 3,0 6,1) t=0.326064989 (1.29715014,3.78655815) tEnd=0.639696212 other=1 otherT=0.26506234 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (0,5 1,5 3,0 6,1) t=0.639696212 (3.14672232,1.74131107) tEnd=1 other=2 otherT=0.370655527 otherIndex=2 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=4 (6,1 0,5) t=0 (6,1) tEnd=0.892561983 other=3 otherT=1 otherIndex=4 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=4 (6,1 0,5) t=0.892561983 (0.644628108,4.57024813) tEnd=1 other=3 otherT=0.181818182 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,3 1,6 5,0 5,1) t=0 (0,3) tEnd=0.26506234 other=2 otherT=1 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,3 1,6 5,0 5,1) t=0.26506234 (1.29715014,3.78655815) tEnd=0.772727273 other=3 otherT=0.326064989 otherIndex=2 windSum=1 windValue=1 oppValue=0
 debugShowActiveSpans id=2 (5,1 0,3) t=0.107531931 (4.46234035,1.21506381) tEnd=0.370655527 other=1 otherT=0.772727273 otherIndex=2 windSum=1 windValue=1 oppValue=0
 debugShowActiveSpans id=2 (5,1 0,3) t=0.370655527 (3.14672232,1.74131107) tEnd=1 other=3 otherT=0.639696212 otherIndex=3 windSum=? windValue=1 oppValue=0
 activeOp op=diff miFrom=0 miTo=1 suFrom=0 suTo=0 result=1
 findNextOp debugShowSort contourWinding=1 oppContourWinding=0 sign=1
 debugShowSort [3] {{0,3}, {1,6}, {5,0}, {5,1}} tStart=0.772727273 tEnd=0.26506234 sign=1 windValue=1 windSum=1 1->0 (max=1) done=0 tiny=0 opp=0
 debugShowSort [0] {{5,1}, {0,3}} tStart=0.107531931 tEnd=0 sign=1 windValue=1 windSum=-1 0->-1 (max=-1) done=1 tiny=0 opp=0
 debugShowSort [1] {{0,3}, {1,6}, {5,0}, {5,1}} tStart=0.772727273 tEnd=1 sign=-1 windValue=1 windSum=-1 -1->0 (max=-1) done=1 tiny=0 opp=0
 debugShowSort [2] {{5,1}, {0,3}} tStart=0.107531931 tEnd=0.370655527 sign=-1 windValue=1 windSum=1 0->1 (max=1) done=0 tiny=0 opp=0
 findNextOp firstIndex=[3] sign=1
 activeOp op=diff miFrom=0 miTo=1 suFrom=0 suTo=0 result=1
 activeOp op=diff miFrom=1 miTo=0 suFrom=0 suTo=0 result=1
 activeOp op=diff miFrom=0 miTo=1 suFrom=0 suTo=0 result=1
 markDoneBinary id=1 (0,3 1,6 5,0 5,1) t=0.26506234 [1] (1.29715014,3.78655815) tEnd=0.772727273 newWindSum=1 newOppSum=0 oppSum=0 windSum=1 windValue=1
 findNextOp from:[1] to:[2] start=1 end=2
 bridgeOp current id=1 from=(1.29715014,3.78655815) to=(4.46234035,1.21506381)
 path.moveTo(1.29715014,3.78655815);
 path.cubicTo(2.36251926,3.45810199, 3.72286963,1.90313876, 4.46234035,1.21506381);
 findNextOp debugShowSort contourWinding=1 oppContourWinding=0 sign=1
 debugShowSort [0] {{5,1}, {0,3}} tStart=0.370655527 tEnd=0.107531931 sign=1 windValue=1 windSum=1 1->0 (max=1) done=0 tiny=0 opp=0
 debugShowSort [1] {{0,5}, {1,5}, {3,0}, {6,1}} tStart=0.639696212 tEnd=1 sign=-1 windValue=1 windSum=? 0->1 (max=1) done=0 tiny=0 opp=1
 debugShowSort [2] {{5,1}, {0,3}} tStart=0.370655527 tEnd=1 sign=-1 windValue=1 windSum=? 0->1 (max=1) done=0 tiny=0 opp=0
 debugShowSort [3] {{0,5}, {1,5}, {3,0}, {6,1}} tStart=0.639696212 tEnd=0.326064989 sign=1 windValue=1 windSum=? 1->0 (max=1) done=0 tiny=0 opp=1
 findNextOp firstIndex=[0] sign=1
 activeOp op=diff miFrom=0 miTo=0 suFrom=0 suTo=1 result=0
 markDoneBinary id=3 (0,5 1,5 3,0 6,1) t=0.639696212 [3] (3.14672232,1.74131107) tEnd=1 newWindSum=1 newOppSum=0 oppSum=? windSum=? windValue=1
 markDoneBinary id=4 (6,1 0,5) t=0 [0] (6,1) tEnd=0.892561983 newWindSum=1 newOppSum=0 oppSum=? windSum=? windValue=1
 findNextOp chase.append id=4
 activeOp op=diff miFrom=0 miTo=1 suFrom=1 suTo=1 result=0
 markDoneBinary id=2 (5,1 0,3) t=0.370655527 [2] (3.14672232,1.74131107) tEnd=1 newWindSum=1 newOppSum=1 oppSum=? windSum=? windValue=1
 markDoneBinary id=1 (0,3 1,6 5,0 5,1) t=0 [0] (0,3) tEnd=0.26506234 newWindSum=1 newOppSum=1 oppSum=? windSum=? windValue=1
 findNextOp chase.append id=1
 activeOp op=diff miFrom=1 miTo=1 suFrom=1 suTo=0 result=1
 markWinding id=3 (0,5 1,5 3,0 6,1) t=0.326064989 [2] (1.29715014,3.78655815) tEnd=0.639696212 newWindSum=1 newOppSum=1 oppSum=? windSum=? windValue=1
 findNextOp chase.append id=3
 markDoneBinary id=2 (5,1 0,3) t=0.107531931 [1] (4.46234035,1.21506381) tEnd=0.370655527 newWindSum=1 newOppSum=0 oppSum=0 windSum=1 windValue=1
 findNextOp from:[2] to:[3] start=3 end=2
 bridgeOp current id=2 from=(4.46234035,1.21506381) to=(3.14672232,1.74131107)
 findNextOp debugShowSort contourWinding=0 oppContourWinding=1 sign=-1
 debugShowSort [1] {{0,5}, {1,5}, {3,0}, {6,1}} tStart=0.326064989 tEnd=0.639696212 sign=-1 windValue=1 windSum=1 0->1 (max=1) done=0 tiny=0 opp=0
 debugShowSort [2] {{0,3}, {1,6}, {5,0}, {5,1}} tStart=0.26506234 tEnd=0 sign=1 windValue=1 windSum=1 1->0 (max=1) done=1 tiny=0 opp=1
 debugShowSort [3] {{0,5}, {1,5}, {3,0}, {6,1}} tStart=0.326064989 tEnd=0.181818182 sign=1 windValue=1 windSum=? 1->0 (max=1) done=0 tiny=0 opp=0
 debugShowSort [0] {{0,3}, {1,6}, {5,0}, {5,1}} tStart=0.26506234 tEnd=0.772727273 sign=-1 windValue=1 windSum=1 0->1 (max=1) done=1 tiny=0 opp=1
 findNextOp firstIndex=[1] sign=-1
 activeOp op=diff miFrom=1 miTo=0 suFrom=1 suTo=1 result=0
 activeOp op=diff miFrom=0 miTo=0 suFrom=1 suTo=0 result=0
 markDoneBinary id=3 (0,5 1,5 3,0 6,1) t=0.181818182 [1] (0.644628108,4.57024813) tEnd=0.326064989 newWindSum=1 newOppSum=0 oppSum=? windSum=? windValue=1
 findNextOp chase.append id=3
 activeOp op=diff miFrom=0 miTo=1 suFrom=0 suTo=0 result=1
 markDoneBinary id=3 (0,5 1,5 3,0 6,1) t=0.326064989 [2] (1.29715014,3.78655815) tEnd=0.639696212 newWindSum=1 newOppSum=1 oppSum=1 windSum=1 windValue=1
 findNextOp from:[3] to:[1] start=1 end=2
 bridgeOp current id=3 from=(3.14672232,1.74131107) to=(1.29715014,3.78655815)
 path.lineTo(3.14672232,1.74131107);
 path.cubicTo(2.43183374,2.33584237, 1.81530964,3.13070869, 1.29715014,3.78655815);
 path.close();
 findChaseOp debugShowSort contourWinding=1 oppContourWinding=0 sign=1
 debugShowSort [0] {{6,1}, {0,5}} tStart=0.892561983 tEnd=0 sign=1 windValue=1 windSum=1 1->0 (max=1) done=1 tiny=0 opp=0
 debugShowSort [1] {{0,5}, {1,5}, {3,0}, {6,1}} tStart=0.181818182 tEnd=0.326064989 sign=-1 windValue=1 windSum=1 0->1 (max=1) done=1 tiny=0 opp=0
 debugShowSort [2] {{6,1}, {0,5}} tStart=0.892561983 tEnd=1 sign=-1 windValue=1 windSum=? 1->2 (max=2) done=0 tiny=0 opp=0
 debugShowSort [3] {{0,5}, {1,5}, {3,0}, {6,1}} tStart=0.181818182 tEnd=0 sign=1 windValue=1 windSum=? 2->1 (max=2) done=0 tiny=0 opp=0
 findChaseOp debugShowSort contourWinding=1 oppContourWinding=0 sign=1
 debugShowSort [0] {{6,1}, {0,5}} tStart=0.892561983 tEnd=0 sign=1 windValue=1 windSum=1 1->0 (max=1) done=1 tiny=0 opp=0
 debugShowSort [1] {{0,5}, {1,5}, {3,0}, {6,1}} tStart=0.181818182 tEnd=0.326064989 sign=-1 windValue=1 windSum=1 0->1 (max=1) done=1 tiny=0 opp=0
 debugShowSort [2] {{6,1}, {0,5}} tStart=0.892561983 tEnd=1 sign=-1 windValue=1 windSum=? 1->2 (max=2) done=0 tiny=0 opp=0
 debugShowSort [3] {{0,5}, {1,5}, {3,0}, {6,1}} tStart=0.181818182 tEnd=0 sign=1 windValue=1 windSum=? 2->1 (max=2) done=0 tiny=0 opp=0
 markWinding id=4 (6,1 0,5) t=0.892561983 [1] (0.644628108,4.57024813) tEnd=1 newWindSum=2 newOppSum=0 oppSum=? windSum=? windValue=1
 markWinding id=3 (0,5 1,5 3,0 6,1) t=0 [0] (0,5) tEnd=0.181818182 newWindSum=2 newOppSum=0 oppSum=? windSum=? windValue=1
 markWinding id=3 (0,5 1,5 3,0 6,1) t=0 [0] (0,5) tEnd=0.181818182 newWindSum=2 newOppSum=0 oppSum=0 windSum=2 windValue=1
 debugShowActiveSpans id=3 (0,5 1,5 3,0 6,1) t=0 (0,5) tEnd=0.181818182 other=4 otherT=1 otherIndex=2 windSum=2 windValue=1 oppValue=0
 debugShowActiveSpans id=4 (6,1 0,5) t=0.892561983 (0.644628108,4.57024813) tEnd=1 other=3 otherT=0.181818182 otherIndex=1 windSum=2 windValue=1 oppValue=0
 activeOp op=diff miFrom=0 miTo=0 suFrom=1 suTo=1 result=0
 markDoneBinary id=4 (6,1 0,5) t=0.892561983 [1] (0.644628108,4.57024813) tEnd=1 newWindSum=2 newOppSum=0 oppSum=0 windSum=2 windValue=1
 markDoneBinary id=3 (0,5 1,5 3,0 6,1) t=0 [0] (0,5) tEnd=0.181818182 newWindSum=2 newOppSum=0 oppSum=0 windSum=2 windValue=1
 assemble
 assemble contour    start=(4.46234035,1.21506381) end=(4.46234035,1.21506381)
 path.moveTo(4.46234035,1.21506381);
 path.cubicTo(4.79338837,0.90702486, 5,0.772727251, 5,1);
 path.lineTo(4.46234035,1.21506381);
 path.close();
 assemble contour    start=(1.29715014,3.78655815) end=(1.29715014,3.78655815)
 </div>

 <div id="cubicOp51d">
   SimplifyNew_Test [cubicOp51d]
 {{0,3}, {1,2}, {4,1}, {6,0}},
 {{6,0}, {0,3}},
 op difference
 {{1,4}, {0,6}, {3,0}, {2,1}},
 {{2,1}, {1,4}},
 debugShowCubicIntersection no self intersect {{0,3}, {1,2}, {4,1}, {6,0}}
 debugShowCubicLineIntersection wtTs[0]=0 {{0,3}, {1,2}, {4,1}, {6,0}} {{0,3}} wtTs[1]=1 {{6,0}} wnTs[0]=1 {{6,0}, {0,3}} wnTs[1]=0
 debugShowCubicIntersection wtTs[0]=0.397354824 {{0,3}, {1,2}, {4,1}, {6,0}} {{1.9511935265302276,1.8079355291007386}} wnTs[0]=0.661665 {{1,4}, {0,6}, {3,0}, {2,1}}
 debugShowCubicLineIntersection wtTs[0]=0.355273081 {{0,3}, {1,2}, {4,1}, {6,0}} {{1.6886064138367243,1.9341807584898274}} wnTs[0]=0.311394 {{2,1}, {1,4}}
 debugShowCubicLineIntersection wtTs[0]=0.6185225 {{1,4}, {0,6}, {3,0}, {2,1}} {{1.8422478636338226,2.0788760681830887}} wnTs[0]=0.692959 {{6,0}, {0,3}}
 debugShowLineIntersection wtTs[0]=0.733333333 {{6,0}, {0,3}} {{1.6000000000000003,2.1999999999999997}} wnTs[0]=0.4 {{2,1}, {1,4}}
 debugShowCubicIntersection no self intersect {{1,4}, {0,6}, {3,0}, {2,1}}
 debugShowCubicLineIntersection wtTs[0]=0 {{1,4}, {0,6}, {3,0}, {2,1}} {{1,4}} wtTs[1]=0.333333333 {{1.0370370370370368,3.8888888888888897}} wtTs[2]=1 {{2,1}} wnTs[0]=1 {{2,1}, {1,4}} wnTs[1]=0.962962963 wnTs[2]=0
 debugShowActiveSpans id=1 (0,3 1,2 4,1 6,0) t=0 (0,3) tEnd=0.355273081 other=2 otherT=1 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,3 1,2 4,1 6,0) t=0.355273081 (1.68860638,1.93418074) tEnd=0.397354824 other=4 otherT=0.311393586 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,3 1,2 4,1 6,0) t=0.397354824 (1.95119357,1.80793548) tEnd=1 other=3 otherT=0.66166507 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=2 (6,0 0,3) t=0 (6,0) tEnd=0.692958689 other=1 otherT=1 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=2 (6,0 0,3) t=0.692958689 (1.84224784,2.07887602) tEnd=0.733333333 other=3 otherT=0.6185225 otherIndex=2 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=2 (6,0 0,3) t=0.733333333 (1.60000002,2.20000005) tEnd=1 other=4 otherT=0.4 otherIndex=2 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (1,4 0,6 3,0 2,1) t=0 (1,4) tEnd=0.333333333 other=4 otherT=1 otherIndex=4 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (1,4 0,6 3,0 2,1) t=0.333333333 (1.03703701,3.88888884) tEnd=0.6185225 other=4 otherT=0.962962963 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (1,4 0,6 3,0 2,1) t=0.6185225 (1.84224784,2.07887602) tEnd=0.66166507 other=2 otherT=0.692958689 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (1,4 0,6 3,0 2,1) t=0.66166507 (1.95119357,1.80793548) tEnd=1 other=1 otherT=0.397354824 otherIndex=2 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=4 (2,1 1,4) t=0 (2,1) tEnd=0.311393586 other=3 otherT=1 otherIndex=4 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=4 (2,1 1,4) t=0.311393586 (1.68860638,1.93418074) tEnd=0.4 other=1 otherT=0.355273081 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=4 (2,1 1,4) t=0.4 (1.60000002,2.20000005) tEnd=0.962962963 other=2 otherT=0.733333333 otherIndex=2 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=4 (2,1 1,4) t=0.962962963 (1.03703701,3.88888884) tEnd=1 other=3 otherT=0.333333333 otherIndex=1 windSum=? windValue=1 oppValue=0
 findTop debugShowSort contourWinding=0 oppContourWinding=0 sign=1
 debugShowSort [0] {{0,3}, {1,2}, {4,1}, {6,0}} tStart=1 tEnd=0.397354824 sign=1 windValue=1 windSum=? 0->-1 (max=-1) done=0 tiny=0 opp=0
 debugShowSort [1] {{6,0}, {0,3}} tStart=0 tEnd=0.692958689 sign=-1 windValue=1 windSum=? -1->0 (max=-1) done=0 tiny=0 opp=0
 findTop swap
 markWinding id=1 (0,3 1,2 4,1 6,0) t=0.397354824 [2] (1.95119357,1.80793548) tEnd=1 newWindSum=1 newOppSum=0 oppSum=? windSum=? windValue=1
 markWinding id=1 (0,3 1,2 4,1 6,0) t=0.397354824 [2] (1.95119357,1.80793548) tEnd=1 newWindSum=1 newOppSum=0 oppSum=0 windSum=1 windValue=1
 markWinding id=2 (6,0 0,3) t=0 [0] (6,0) tEnd=0.692958689 newWindSum=1 newOppSum=0 oppSum=? windSum=? windValue=1
 activeOp op=diff miFrom=1 miTo=0 suFrom=0 suTo=0 result=1
 findNextOp debugShowSort contourWinding=0 oppContourWinding=0 sign=-1
 debugShowSort [0] {{0,3}, {1,2}, {4,1}, {6,0}} tStart=0.397354824 tEnd=1 sign=-1 windValue=1 windSum=1 0->1 (max=1) done=0 tiny=0 opp=0
 debugShowSort [1] {{1,4}, {0,6}, {3,0}, {2,1}} tStart=0.66166507 tEnd=1 sign=-1 windValue=1 windSum=? 0->1 (max=1) done=0 tiny=0 opp=1
 debugShowSort [2] {{0,3}, {1,2}, {4,1}, {6,0}} tStart=0.397354824 tEnd=0.355273081 sign=1 windValue=1 windSum=? 1->0 (max=1) done=0 tiny=0 opp=0
 debugShowSort [3] {{1,4}, {0,6}, {3,0}, {2,1}} tStart=0.66166507 tEnd=0.6185225 sign=1 windValue=1 windSum=? 1->0 (max=1) done=0 tiny=0 opp=1
 findNextOp firstIndex=[0] sign=-1
 activeOp op=diff miFrom=1 miTo=1 suFrom=0 suTo=1 result=1
 markWinding id=3 (1,4 0,6 3,0 2,1) t=0.66166507 [3] (1.95119357,1.80793548) tEnd=1 newWindSum=1 newOppSum=1 oppSum=? windSum=? windValue=1
 markWinding id=4 (2,1 1,4) t=0 [0] (2,1) tEnd=0.311393586 newWindSum=1 newOppSum=1 oppSum=? windSum=? windValue=1
 findNextOp chase.append id=4
 activeOp op=diff miFrom=1 miTo=0 suFrom=1 suTo=1 result=0
 markDoneBinary id=1 (0,3 1,2 4,1 6,0) t=0.355273081 [1] (1.68860638,1.93418074) tEnd=0.397354824 newWindSum=1 newOppSum=1 oppSum=? windSum=? windValue=1
 findNextOp chase.append id=1
 activeOp op=diff miFrom=0 miTo=0 suFrom=1 suTo=0 result=0
 markDoneBinary id=3 (1,4 0,6 3,0 2,1) t=0.6185225 [2] (1.84224784,2.07887602) tEnd=0.66166507 newWindSum=1 newOppSum=0 oppSum=? windSum=? windValue=1
 findNextOp chase.append id=3
 markDoneBinary id=1 (0,3 1,2 4,1 6,0) t=0.397354824 [2] (1.95119357,1.80793548) tEnd=1 newWindSum=1 newOppSum=0 oppSum=0 windSum=1 windValue=1
 findNextOp from:[1] to:[3] start=3 end=4
 bridgeOp current id=1 from=(6,0) to=(1.95119357,1.80793548)
 path.moveTo(6,0);
 path.cubicTo(4.79470968,0.602645159, 3.22623801,1.20529044, 1.95119357,1.80793548);
 findNextOp simple
 markDoneBinary id=3 (1,4 0,6 3,0 2,1) t=0.66166507 [3] (1.95119357,1.80793548) tEnd=1 newWindSum=1 newOppSum=1 oppSum=1 windSum=1 windValue=1
 bridgeOp current id=3 from=(1.95119357,1.80793548) to=(2,1)
 path.cubicTo(2.21878767,1.12462389, 2.33833504,0.661665022, 2,1);
 findNextOp debugShowSort contourWinding=1 oppContourWinding=1 sign=1
 debugShowSort [1] {{2,1}, {1,4}} tStart=0.311393586 tEnd=0 sign=1 windValue=1 windSum=1 1->0 (max=1) done=0 tiny=0 opp=0
 debugShowSort [2] {{0,3}, {1,2}, {4,1}, {6,0}} tStart=0.355273081 tEnd=0 sign=1 windValue=1 windSum=? 1->0 (max=1) done=0 tiny=0 opp=1
 debugShowSort [3] {{2,1}, {1,4}} tStart=0.311393586 tEnd=0.4 sign=-1 windValue=1 windSum=? 0->1 (max=1) done=0 tiny=0 opp=0
 debugShowSort [0] {{0,3}, {1,2}, {4,1}, {6,0}} tStart=0.355273081 tEnd=0.397354824 sign=-1 windValue=1 windSum=1 0->1 (max=1) done=1 tiny=0 opp=1
 findNextOp firstIndex=[1] sign=1
 activeOp op=diff miFrom=1 miTo=0 suFrom=0 suTo=0 result=1
 markWinding id=1 (0,3 1,2 4,1 6,0) t=0 [0] (0,3) tEnd=0.355273081 newWindSum=1 newOppSum=0 oppSum=? windSum=? windValue=1
 markWinding id=2 (6,0 0,3) t=0.733333333 [2] (1.60000002,2.20000005) tEnd=1 newWindSum=1 newOppSum=0 oppSum=? windSum=? windValue=1
 findNextOp chase.append id=2
 activeOp op=diff miFrom=0 miTo=0 suFrom=0 suTo=1 result=0
 markDoneBinary id=4 (2,1 1,4) t=0.311393586 [1] (1.68860638,1.93418074) tEnd=0.4 newWindSum=1 newOppSum=0 oppSum=? windSum=? windValue=1
 findNextOp chase.append id=4
 activeOp op=diff miFrom=0 miTo=1 suFrom=1 suTo=1 result=0
 markDoneBinary id=4 (2,1 1,4) t=0 [0] (2,1) tEnd=0.311393586 newWindSum=1 newOppSum=1 oppSum=1 windSum=1 windValue=1
 findNextOp from:[4] to:[1] start=1 end=0
 bridgeOp current id=4 from=(2,1) to=(1.68860638,1.93418074)
 findNextOp simple
 markDoneBinary id=1 (0,3 1,2 4,1 6,0) t=0 [0] (0,3) tEnd=0.355273081 newWindSum=1 newOppSum=0 oppSum=0 windSum=1 windValue=1
 bridgeOp current id=1 from=(1.68860638,1.93418074) to=(0,3)
 path.lineTo(1.68860638,1.93418074);
 path.cubicTo(0.962984085,2.28945374, 0.355273068,2.64472699, 0,3);
 findNextOp debugShowSort contourWinding=0 oppContourWinding=0 sign=-1
 debugShowSort [2] {{6,0}, {0,3}} tStart=0.733333333 tEnd=1 sign=-1 windValue=1 windSum=1 0->1 (max=1) done=0 tiny=0 opp=0
 debugShowSort [3] {{2,1}, {1,4}} tStart=0.4 tEnd=0.962962963 sign=-1 windValue=1 windSum=? 0->1 (max=1) done=0 tiny=0 opp=1
 debugShowSort [0] {{6,0}, {0,3}} tStart=0.733333333 tEnd=0.692958689 sign=1 windValue=1 windSum=? 1->0 (max=1) done=0 tiny=0 opp=0
 debugShowSort [1] {{2,1}, {1,4}} tStart=0.4 tEnd=0.311393586 sign=1 windValue=1 windSum=1 1->0 (max=1) done=1 tiny=0 opp=1
 findNextOp firstIndex=[2] sign=-1
 activeOp op=diff miFrom=1 miTo=1 suFrom=0 suTo=1 result=1
 markWinding id=4 (2,1 1,4) t=0.4 [2] (1.60000002,2.20000005) tEnd=0.962962963 newWindSum=1 newOppSum=1 oppSum=? windSum=? windValue=1
 findNextOp chase.append id=4
 activeOp op=diff miFrom=1 miTo=0 suFrom=1 suTo=1 result=0
 markDoneBinary id=2 (6,0 0,3) t=0.692958689 [1] (1.84224784,2.07887602) tEnd=0.733333333 newWindSum=1 newOppSum=1 oppSum=? windSum=? windValue=1
 findNextOp chase.append id=2
 activeOp op=diff miFrom=0 miTo=0 suFrom=1 suTo=0 result=0
 markDoneBinary id=2 (6,0 0,3) t=0.733333333 [2] (1.60000002,2.20000005) tEnd=1 newWindSum=1 newOppSum=0 oppSum=0 windSum=1 windValue=1
 findNextOp from:[2] to:[4] start=2 end=3
 bridgeOp current id=2 from=(0,3) to=(1.60000002,2.20000005)
 findNextOp debugShowSort contourWinding=1 oppContourWinding=1 sign=1
 debugShowSort [1] {{2,1}, {1,4}} tStart=0.962962963 tEnd=0.4 sign=1 windValue=1 windSum=1 1->0 (max=1) done=0 tiny=0 opp=0
 debugShowSort [2] {{1,4}, {0,6}, {3,0}, {2,1}} tStart=0.333333333 tEnd=0 sign=1 windValue=1 windSum=? 0->-1 (max=-1) done=0 tiny=0 opp=0
 debugShowSort [3] {{2,1}, {1,4}} tStart=0.962962963 tEnd=1 sign=-1 windValue=1 windSum=? -1->0 (max=-1) done=0 tiny=0 opp=0
 debugShowSort [0] {{1,4}, {0,6}, {3,0}, {2,1}} tStart=0.333333333 tEnd=0.6185225 sign=-1 windValue=1 windSum=? 0->1 (max=1) done=0 tiny=0 opp=0
 findNextOp firstIndex=[1] sign=1
 activeOp op=diff miFrom=1 miTo=1 suFrom=0 suTo=1 result=1
 markWinding id=3 (1,4 0,6 3,0 2,1) t=0 [0] (1,4) tEnd=0.333333333 newWindSum=-1 newOppSum=1 oppSum=? windSum=? windValue=1
 markWinding id=4 (2,1 1,4) t=0.962962963 [3] (1.03703701,3.88888884) tEnd=1 newWindSum=-1 newOppSum=1 oppSum=? windSum=? windValue=1
 findNextOp chase.append id=4
 activeOp op=diff miFrom=1 miTo=1 suFrom=1 suTo=0 result=1
 activeOp op=diff miFrom=1 miTo=1 suFrom=0 suTo=1 result=1
 markWinding id=3 (1,4 0,6 3,0 2,1) t=0.333333333 [1] (1.03703701,3.88888884) tEnd=0.6185225 newWindSum=1 newOppSum=1 oppSum=? windSum=? windValue=1
 findNextOp chase.append id=3
 markDoneBinary id=4 (2,1 1,4) t=0.4 [2] (1.60000002,2.20000005) tEnd=0.962962963 newWindSum=1 newOppSum=1 oppSum=1 windSum=1 windValue=1
 findNextOp from:[4] to:[3] start=1 end=0
 bridgeOp current id=4 from=(1.60000002,2.20000005) to=(1.03703701,3.88888884)
 path.lineTo(1.60000002,2.20000005);
 findNextOp simple
 markDoneBinary id=3 (1,4 0,6 3,0 2,1) t=0 [0] (1,4) tEnd=0.333333333 newWindSum=-1 newOppSum=1 oppSum=1 windSum=-1 windValue=1
 bridgeOp current id=3 from=(1.03703701,3.88888884) to=(1,4)
 path.lineTo(1.03703701,3.88888884);
 path.cubicTo(0.777777791,4.44444466, 0.666666687,4.66666651, 1,4);
 findNextOp debugShowSort contourWinding=-1 oppContourWinding=1 sign=-1
 debugShowSort [3] {{2,1}, {1,4}} tStart=0.962962963 tEnd=1 sign=-1 windValue=1 windSum=-1 -1->0 (max=-1) done=0 tiny=0 opp=0
 debugShowSort [0] {{1,4}, {0,6}, {3,0}, {2,1}} tStart=0.333333333 tEnd=0.6185225 sign=-1 windValue=1 windSum=1 0->1 (max=1) done=0 tiny=0 opp=0
 debugShowSort [1] {{2,1}, {1,4}} tStart=0.962962963 tEnd=0.4 sign=1 windValue=1 windSum=1 1->0 (max=1) done=1 tiny=0 opp=0
 debugShowSort [2] {{1,4}, {0,6}, {3,0}, {2,1}} tStart=0.333333333 tEnd=0 sign=1 windValue=1 windSum=-1 0->-1 (max=-1) done=1 tiny=0 opp=0
 findNextOp firstIndex=[3] sign=-1
 activeOp op=diff miFrom=1 miTo=1 suFrom=0 suTo=1 result=1
 activeOp op=diff miFrom=1 miTo=1 suFrom=1 suTo=0 result=1
 activeOp op=diff miFrom=1 miTo=1 suFrom=0 suTo=1 result=1
 markDoneBinary id=4 (2,1 1,4) t=0.962962963 [3] (1.03703701,3.88888884) tEnd=1 newWindSum=-1 newOppSum=1 oppSum=1 windSum=-1 windValue=1
 findNextOp from:[4] to:[3] start=1 end=2
 bridgeOp current id=4 from=(1,4) to=(1.03703701,3.88888884)
 findNextOp debugShowSort contourWinding=1 oppContourWinding=1 sign=1
 debugShowSort [3] {{1,4}, {0,6}, {3,0}, {2,1}} tStart=0.6185225 tEnd=0.333333333 sign=1 windValue=1 windSum=1 1->0 (max=1) done=0 tiny=0 opp=0
 debugShowSort [0] {{6,0}, {0,3}} tStart=0.692958689 tEnd=0 sign=1 windValue=1 windSum=1 1->0 (max=1) done=0 tiny=0 opp=1
 debugShowSort [1] {{1,4}, {0,6}, {3,0}, {2,1}} tStart=0.6185225 tEnd=0.66166507 sign=-1 windValue=1 windSum=1 0->1 (max=1) done=1 tiny=0 opp=0
 debugShowSort [2] {{6,0}, {0,3}} tStart=0.692958689 tEnd=0.733333333 sign=-1 windValue=1 windSum=1 0->1 (max=1) done=1 tiny=0 opp=1
 findNextOp firstIndex=[3] sign=1
 activeOp op=diff miFrom=1 miTo=0 suFrom=0 suTo=0 result=1
 activeOp op=diff miFrom=0 miTo=0 suFrom=0 suTo=1 result=0
 activeOp op=diff miFrom=0 miTo=1 suFrom=1 suTo=1 result=0
 markDoneBinary id=3 (1,4 0,6 3,0 2,1) t=0.333333333 [1] (1.03703701,3.88888884) tEnd=0.6185225 newWindSum=1 newOppSum=1 oppSum=1 windSum=1 windValue=1
 findNextOp from:[3] to:[2] start=1 end=0
 bridgeOp current id=3 from=(1.03703701,3.88888884) to=(1.84224784,2.07887602)
 path.lineTo(1.03703701,3.88888884);
 path.cubicTo(1.25885081,3.41357374, 1.58910847,2.69425988, 1.84224784,2.07887602);
 findNextOp simple
 markDoneBinary id=2 (6,0 0,3) t=0 [0] (6,0) tEnd=0.692958689 newWindSum=1 newOppSum=0 oppSum=0 windSum=1 windValue=1
 bridgeOp current id=2 from=(1.84224784,2.07887602) to=(6,0)
 path.lineTo(6,0);
 path.close();
 assemble
 assemble contour    start=(6,0) end=(6,0)
 </div>

 <div id="cubicOp51da">
 $1 = {{x = 1.9511935265302274, y = 1.8079355291007388}, {x = 3.2262380859340407, y = 1.2052903527338259}, {x = 4.794709647266175, y = 0.60264517636691295}, {x = 6, y = 0}}
 (gdb) p startEdge
 $2 = {{x = 1.9511935265302274, y = 1.8079355291007388}, {x = 2.5538387028971403, y = 3.0829800885045522}}
 (gdb) p endEdge
 $3 = {{x = 6, y = 0}, {x = 5.3973548236330871, y = -1.205290352733825}}
 </div>

 <div id="cubicOp52da">
 $3 = {{fX = 2.625, fY = 2.25}, {fX = 2.25, fY = 1.25}, {fX = 2, fY = 0.5}, {fX = 2, fY = 1}}
 </div>

 <div id="cubicOp52db">
 $3 = {{x = 1.9511935265302274, y = 1.8079355291007388}, {x = 3.2262380859340407, y = 1.2052903527338259}, {x = 4.794709647266175, y = 0.60264517636691295}, {x = 6, y = 0}}
 (gdb) p startEdge
 $4 = {{x = 1.9511935265302274, y = 1.8079355291007388}, {x = 3.7591290556309662, y = 5.8567420025705115}}
 (gdb) p endEdge
 $5 = {{x = 6, y = 0}, {x = 7.8079355291007388, y = 4.0488064734697726}}
 </div>

 <div id="cubicOp53d">
   SimplifyNew_Test [cubicOp53d]
 {{0,3}, {1,2}, {5,3}, {2,1}},
 {{2,1}, {0,3}},
 op difference
 {{3,5}, {1,2}, {3,0}, {2,1}},
 {{2,1}, {3,5}},
 debugShowCubicIntersection no self intersect {{3,5}, {1,2}, {3,0}, {2,1}}
 debugShowCubicLineIntersection wtTs[0]=0 {{3,5}, {1,2}, {3,0}, {2,1}} {{3,5}} wtTs[1]=0.5 {{2.125,1.5}} wtTs[2]=1 {{2,1}} wnTs[0]=1 {{2,1}, {3,5}} wnTs[1]=0.125 wnTs[2]=0
 debugShowCubicIntersection wtTs[0]=0.32953467 {{3,5}, {1,2}, {3,0}, {2,1}} {{2.0754128281547217,2.4315376490509659}} wtTs[1]=0.59235675 {{2.2015477442470841,1.1371488033015213}} wtTs[2]=1 {{2,1}} wnTs[0]=0.414081 {{0,3}, {1,2}, {5,3}, {2,1}} wnTs[1]=0.976311205 wnTs[2]=1
 debugShowCubicLineIntersection wtTs[0]=1 {{3,5}, {1,2}, {3,0}, {2,1}} {{2,1}} wnTs[0]=0 {{2,1}, {0,3}}
 debugShowCubicLineIntersection wtTs[0]=0.467845317 {{0,3}, {1,2}, {5,3}, {2,1}} {{2.3494328385891112,2.3977313543564462}} wtTs[1]=1 {{2,1}} wnTs[0]=0.349433 {{2,1}, {3,5}} wnTs[1]=0
 debugShowLineIntersection wtTs[0]=-0 {{2,1}, {3,5}} {{2,1}} wnTs[0]=0 {{2,1}, {0,3}}
 debugShowCubicIntersection no self intersect {{0,3}, {1,2}, {5,3}, {2,1}}
 debugShowCubicLineIntersection wtTs[0]=0 {{0,3}, {1,2}, {5,3}, {2,1}} {{0,3}} wtTs[1]=1 {{2,1}} wnTs[0]=1 {{2,1}, {0,3}} wnTs[1]=0
 debugShowActiveSpans id=3 (3,5 1,2 3,0 2,1) t=0 (3,5) tEnd=0.32953467 other=4 otherT=1 otherIndex=5 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (3,5 1,2 3,0 2,1) t=0.32953467 (2.07541275,2.43153763) tEnd=0.5 other=1 otherT=0.414080655 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (3,5 1,2 3,0 2,1) t=0.5 (2.125,1.5) tEnd=0.59235675 other=4 otherT=0.125 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (3,5 1,2 3,0 2,1) t=0.59235675 (2.20154786,1.13714886) tEnd=1 other=1 otherT=0.976311205 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=4 (2,1 3,5) t=0 (2,1) tEnd=0.125 other=3 otherT=1 otherIndex=4 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=4 (2,1 3,5) t=0 (2,1) tEnd=0.125 other=1 otherT=1 otherIndex=5 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=4 (2,1 3,5) t=-0 (2,1) tEnd=0.125 other=2 otherT=0 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=4 (2,1 3,5) t=0.125 (2.125,1.5) tEnd=0.349432839 other=3 otherT=0.5 otherIndex=2 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=4 (2,1 3,5) t=0.349432839 (2.34943295,2.3977313) tEnd=1 other=1 otherT=0.467845317 otherIndex=2 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,3 1,2 5,3 2,1) t=0 (0,3) tEnd=0.414080655 other=2 otherT=1 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,3 1,2 5,3 2,1) t=0.414080655 (2.07541275,2.43153763) tEnd=0.467845317 other=3 otherT=0.32953467 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,3 1,2 5,3 2,1) t=0.467845317 (2.34943295,2.3977313) tEnd=0.976311205 other=4 otherT=0.349432839 otherIndex=4 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,3 1,2 5,3 2,1) t=0.976311205 (2.20154786,1.13714886) tEnd=1 other=3 otherT=0.59235675 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=2 (2,1 0,3) t=0 (2,1) tEnd=1 other=3 otherT=1 otherIndex=6 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=2 (2,1 0,3) t=0 (2,1) tEnd=1 other=4 otherT=-0 otherIndex=2 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=2 (2,1 0,3) t=0 (2,1) tEnd=1 other=1 otherT=1 otherIndex=6 windSum=? windValue=1 oppValue=0
 findTop debugShowSort contourWinding=0 oppContourWinding=0 sign=1
 debugShowSort [0] {{3,5}, {1,2}, {3,0}, {2,1}} tStart=1 tEnd=0.59235675 sign=1 windValue=1 windSum=? 0->-1 (max=-1) done=0 tiny=0 opp=0
 debugShowSort [1] {{2,1}, {0,3}} tStart=0 tEnd=1 sign=-1 windValue=1 windSum=? 0->1 (max=1) done=0 tiny=0 opp=1
 debugShowSort [2] {{2,1}, {3,5}} tStart=0 tEnd=0.125 sign=-1 windValue=1 windSum=? -1->0 (max=-1) done=0 tiny=0 opp=0
 debugShowSort [3] {{0,3}, {1,2}, {5,3}, {2,1}} tStart=1 tEnd=0.976311205 sign=1 windValue=1 windSum=? 1->0 (max=1) done=0 tiny=0 opp=1
 markWinding id=3 (3,5 1,2 3,0 2,1) t=0.59235675 [3] (2.20154786,1.13714886) tEnd=1 newWindSum=-1 newOppSum=0 oppSum=? windSum=? windValue=1
 markWinding id=3 (3,5 1,2 3,0 2,1) t=0.59235675 [3] (2.20154786,1.13714886) tEnd=1 newWindSum=-1 newOppSum=0 oppSum=0 windSum=-1 windValue=1
 activeOp op=diff miFrom=0 miTo=0 suFrom=1 suTo=0 result=0
 markDoneBinary id=3 (3,5 1,2 3,0 2,1) t=0.59235675 [3] (2.20154786,1.13714886) tEnd=1 newWindSum=-1 newOppSum=0 oppSum=0 windSum=-1 windValue=1
 findChaseOp debugShowSort contourWinding=0 oppContourWinding=0 sign=1
 debugShowSort [0] {{3,5}, {1,2}, {3,0}, {2,1}} tStart=1 tEnd=0.59235675 sign=1 windValue=1 windSum=-1 0->-1 (max=-1) done=1 tiny=0 opp=0
 debugShowSort [1] {{2,1}, {0,3}} tStart=0 tEnd=1 sign=-1 windValue=1 windSum=? 0->1 (max=1) done=0 tiny=0 opp=1
 debugShowSort [2] {{2,1}, {3,5}} tStart=0 tEnd=0.125 sign=-1 windValue=1 windSum=? -1->0 (max=-1) done=0 tiny=0 opp=0
 debugShowSort [3] {{0,3}, {1,2}, {5,3}, {2,1}} tStart=1 tEnd=0.976311205 sign=1 windValue=1 windSum=? 1->0 (max=1) done=0 tiny=0 opp=1
 findChaseOp debugShowSort contourWinding=0 oppContourWinding=0 sign=1
 debugShowSort [0] {{3,5}, {1,2}, {3,0}, {2,1}} tStart=1 tEnd=0.59235675 sign=1 windValue=1 windSum=-1 0->-1 (max=-1) done=1 tiny=0 opp=0
 debugShowSort [1] {{2,1}, {0,3}} tStart=0 tEnd=1 sign=-1 windValue=1 windSum=? 0->1 (max=1) done=0 tiny=0 opp=1
 debugShowSort [2] {{2,1}, {3,5}} tStart=0 tEnd=0.125 sign=-1 windValue=1 windSum=? -1->0 (max=-1) done=0 tiny=0 opp=0
 debugShowSort [3] {{0,3}, {1,2}, {5,3}, {2,1}} tStart=1 tEnd=0.976311205 sign=1 windValue=1 windSum=? 1->0 (max=1) done=0 tiny=0 opp=1
 markWinding id=2 (2,1 0,3) t=0 [0] (2,1) tEnd=0 newWindSum=1 newOppSum=-1 oppSum=? windSum=? windValue=1
 markWinding id=2 (2,1 0,3) t=0 [1] (2,1) tEnd=0 newWindSum=1 newOppSum=-1 oppSum=? windSum=? windValue=1
 markWinding id=2 (2,1 0,3) t=0 [2] (2,1) tEnd=1 newWindSum=1 newOppSum=-1 oppSum=? windSum=? windValue=1
 markWinding id=1 (0,3 1,2 5,3 2,1) t=0 [0] (0,3) tEnd=0.414080655 newWindSum=1 newOppSum=-1 oppSum=? windSum=? windValue=1
 markWinding id=4 (2,1 3,5) t=0 [0] (2,1) tEnd=0 newWindSum=-1 newOppSum=1 oppSum=? windSum=? windValue=1
 markWinding id=4 (2,1 3,5) t=0 [1] (2,1) tEnd=-0 newWindSum=-1 newOppSum=1 oppSum=? windSum=? windValue=1
 markWinding id=4 (2,1 3,5) t=-0 [2] (2,1) tEnd=0.125 newWindSum=-1 newOppSum=1 oppSum=? windSum=? windValue=1
 markWinding id=1 (0,3 1,2 5,3 2,1) t=0.976311205 [3] (2.20154786,1.13714886) tEnd=1 newWindSum=1 newOppSum=0 oppSum=? windSum=? windValue=1
 debugShowActiveSpans id=3 (3,5 1,2 3,0 2,1) t=0 (3,5) tEnd=0.32953467 other=4 otherT=1 otherIndex=5 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (3,5 1,2 3,0 2,1) t=0.32953467 (2.07541275,2.43153763) tEnd=0.5 other=1 otherT=0.414080655 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (3,5 1,2 3,0 2,1) t=0.5 (2.125,1.5) tEnd=0.59235675 other=4 otherT=0.125 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=4 (2,1 3,5) t=0 (2,1) tEnd=0.125 other=3 otherT=1 otherIndex=4 windSum=-1 windValue=1 oppValue=0
 debugShowActiveSpans id=4 (2,1 3,5) t=0 (2,1) tEnd=0.125 other=1 otherT=1 otherIndex=5 windSum=-1 windValue=1 oppValue=0
 debugShowActiveSpans id=4 (2,1 3,5) t=-0 (2,1) tEnd=0.125 other=2 otherT=0 otherIndex=1 windSum=-1 windValue=1 oppValue=0
 debugShowActiveSpans id=4 (2,1 3,5) t=0.125 (2.125,1.5) tEnd=0.349432839 other=3 otherT=0.5 otherIndex=2 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=4 (2,1 3,5) t=0.349432839 (2.34943295,2.3977313) tEnd=1 other=1 otherT=0.467845317 otherIndex=2 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,3 1,2 5,3 2,1) t=0 (0,3) tEnd=0.414080655 other=2 otherT=1 otherIndex=3 windSum=1 windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,3 1,2 5,3 2,1) t=0.414080655 (2.07541275,2.43153763) tEnd=0.467845317 other=3 otherT=0.32953467 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,3 1,2 5,3 2,1) t=0.467845317 (2.34943295,2.3977313) tEnd=0.976311205 other=4 otherT=0.349432839 otherIndex=4 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,3 1,2 5,3 2,1) t=0.976311205 (2.20154786,1.13714886) tEnd=1 other=3 otherT=0.59235675 otherIndex=3 windSum=1 windValue=1 oppValue=0
 debugShowActiveSpans id=2 (2,1 0,3) t=0 (2,1) tEnd=1 other=3 otherT=1 otherIndex=6 windSum=1 windValue=1 oppValue=0
 debugShowActiveSpans id=2 (2,1 0,3) t=0 (2,1) tEnd=1 other=4 otherT=-0 otherIndex=2 windSum=1 windValue=1 oppValue=0
 debugShowActiveSpans id=2 (2,1 0,3) t=0 (2,1) tEnd=1 other=1 otherT=1 otherIndex=6 windSum=1 windValue=1 oppValue=0
 activeOp op=diff miFrom=0 miTo=1 suFrom=1 suTo=1 result=0
 markDoneBinary id=2 (2,1 0,3) t=0 [0] (2,1) tEnd=0 newWindSum=1 newOppSum=-1 oppSum=-1 windSum=1 windValue=1
 markDoneBinary id=2 (2,1 0,3) t=0 [1] (2,1) tEnd=0 newWindSum=1 newOppSum=-1 oppSum=-1 windSum=1 windValue=1
 markDoneBinary id=2 (2,1 0,3) t=0 [2] (2,1) tEnd=1 newWindSum=1 newOppSum=-1 oppSum=-1 windSum=1 windValue=1
 markDoneBinary id=1 (0,3 1,2 5,3 2,1) t=0 [0] (0,3) tEnd=0.414080655 newWindSum=1 newOppSum=-1 oppSum=-1 windSum=1 windValue=1
 findChaseOp debugShowSort contourWinding=? oppContourWinding=? sign=-1
 debugShowSort [0] {{0,3}, {1,2}, {5,3}, {2,1}} tStart=0.414080655 tEnd=0.467845317 sign=-1 windValue=1 windSum=? ?->? (max=?) done=0 tiny=0 opp=0
 debugShowSort [1] {{3,5}, {1,2}, {3,0}, {2,1}} tStart=0.32953467 tEnd=0.5 sign=-1 windValue=1 windSum=? ?->? (max=?) done=0 tiny=0 opp=1
 debugShowSort [2] {{0,3}, {1,2}, {5,3}, {2,1}} tStart=0.414080655 tEnd=0 sign=1 windValue=1 windSum=1 ?->? (max=?) done=1 tiny=0 opp=0
 debugShowSort [3] {{3,5}, {1,2}, {3,0}, {2,1}} tStart=0.32953467 tEnd=0 sign=1 windValue=1 windSum=? ?->? (max=?) done=0 tiny=0 opp=1
 findChaseOp debugShowSort contourWinding=1 oppContourWinding=-1 sign=1
 debugShowSort [2] {{0,3}, {1,2}, {5,3}, {2,1}} tStart=0.414080655 tEnd=0 sign=1 windValue=1 windSum=1 1->0 (max=1) done=1 tiny=0 opp=0
 debugShowSort [3] {{3,5}, {1,2}, {3,0}, {2,1}} tStart=0.32953467 tEnd=0 sign=1 windValue=1 windSum=? -1->-2 (max=-2) done=0 tiny=0 opp=1
 debugShowSort [0] {{0,3}, {1,2}, {5,3}, {2,1}} tStart=0.414080655 tEnd=0.467845317 sign=-1 windValue=1 windSum=? 0->1 (max=1) done=0 tiny=0 opp=0
 debugShowSort [1] {{3,5}, {1,2}, {3,0}, {2,1}} tStart=0.32953467 tEnd=0.5 sign=-1 windValue=1 windSum=? -2->-1 (max=-2) done=0 tiny=0 opp=1
 markWinding id=3 (3,5 1,2 3,0 2,1) t=0 [0] (3,5) tEnd=0.32953467 newWindSum=-2 newOppSum=0 oppSum=? windSum=? windValue=1
 markWinding id=4 (2,1 3,5) t=0.349432839 [4] (2.34943295,2.3977313) tEnd=1 newWindSum=-2 newOppSum=0 oppSum=? windSum=? windValue=1
 markWinding id=1 (0,3 1,2 5,3 2,1) t=0.414080655 [1] (2.07541275,2.43153763) tEnd=0.467845317 newWindSum=1 newOppSum=-2 oppSum=? windSum=? windValue=1
 markWinding id=3 (3,5 1,2 3,0 2,1) t=0.32953467 [1] (2.07541275,2.43153763) tEnd=0.5 newWindSum=-2 newOppSum=1 oppSum=? windSum=? windValue=1
 debugShowActiveSpans id=3 (3,5 1,2 3,0 2,1) t=0 (3,5) tEnd=0.32953467 other=4 otherT=1 otherIndex=5 windSum=-2 windValue=1 oppValue=0
 debugShowActiveSpans id=3 (3,5 1,2 3,0 2,1) t=0.32953467 (2.07541275,2.43153763) tEnd=0.5 other=1 otherT=0.414080655 otherIndex=1 windSum=-2 windValue=1 oppValue=0
 debugShowActiveSpans id=3 (3,5 1,2 3,0 2,1) t=0.5 (2.125,1.5) tEnd=0.59235675 other=4 otherT=0.125 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=4 (2,1 3,5) t=0 (2,1) tEnd=0.125 other=3 otherT=1 otherIndex=4 windSum=-1 windValue=1 oppValue=0
 debugShowActiveSpans id=4 (2,1 3,5) t=0 (2,1) tEnd=0.125 other=1 otherT=1 otherIndex=5 windSum=-1 windValue=1 oppValue=0
 debugShowActiveSpans id=4 (2,1 3,5) t=-0 (2,1) tEnd=0.125 other=2 otherT=0 otherIndex=1 windSum=-1 windValue=1 oppValue=0
 debugShowActiveSpans id=4 (2,1 3,5) t=0.125 (2.125,1.5) tEnd=0.349432839 other=3 otherT=0.5 otherIndex=2 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=4 (2,1 3,5) t=0.349432839 (2.34943295,2.3977313) tEnd=1 other=1 otherT=0.467845317 otherIndex=2 windSum=-2 windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,3 1,2 5,3 2,1) t=0.414080655 (2.07541275,2.43153763) tEnd=0.467845317 other=3 otherT=0.32953467 otherIndex=1 windSum=1 windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,3 1,2 5,3 2,1) t=0.467845317 (2.34943295,2.3977313) tEnd=0.976311205 other=4 otherT=0.349432839 otherIndex=4 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,3 1,2 5,3 2,1) t=0.976311205 (2.20154786,1.13714886) tEnd=1 other=3 otherT=0.59235675 otherIndex=3 windSum=1 windValue=1 oppValue=0
 activeOp op=diff miFrom=0 miTo=0 suFrom=1 suTo=1 result=0
 markDoneBinary id=3 (3,5 1,2 3,0 2,1) t=0 [0] (3,5) tEnd=0.32953467 newWindSum=-2 newOppSum=0 oppSum=0 windSum=-2 windValue=1
 markDoneBinary id=4 (2,1 3,5) t=0.349432839 [4] (2.34943295,2.3977313) tEnd=1 newWindSum=-2 newOppSum=0 oppSum=0 windSum=-2 windValue=1
 debugShowActiveSpans id=3 (3,5 1,2 3,0 2,1) t=0.32953467 (2.07541275,2.43153763) tEnd=0.5 other=1 otherT=0.414080655 otherIndex=1 windSum=-2 windValue=1 oppValue=0
 debugShowActiveSpans id=3 (3,5 1,2 3,0 2,1) t=0.5 (2.125,1.5) tEnd=0.59235675 other=4 otherT=0.125 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=4 (2,1 3,5) t=0 (2,1) tEnd=0.125 other=3 otherT=1 otherIndex=4 windSum=-1 windValue=1 oppValue=0
 debugShowActiveSpans id=4 (2,1 3,5) t=0 (2,1) tEnd=0.125 other=1 otherT=1 otherIndex=5 windSum=-1 windValue=1 oppValue=0
 debugShowActiveSpans id=4 (2,1 3,5) t=-0 (2,1) tEnd=0.125 other=2 otherT=0 otherIndex=1 windSum=-1 windValue=1 oppValue=0
 debugShowActiveSpans id=4 (2,1 3,5) t=0.125 (2.125,1.5) tEnd=0.349432839 other=3 otherT=0.5 otherIndex=2 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,3 1,2 5,3 2,1) t=0.414080655 (2.07541275,2.43153763) tEnd=0.467845317 other=3 otherT=0.32953467 otherIndex=1 windSum=1 windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,3 1,2 5,3 2,1) t=0.467845317 (2.34943295,2.3977313) tEnd=0.976311205 other=4 otherT=0.349432839 otherIndex=4 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,3 1,2 5,3 2,1) t=0.976311205 (2.20154786,1.13714886) tEnd=1 other=3 otherT=0.59235675 otherIndex=3 windSum=1 windValue=1 oppValue=0
 activeOp op=diff miFrom=1 miTo=0 suFrom=1 suTo=1 result=0
 markDoneBinary id=1 (0,3 1,2 5,3 2,1) t=0.414080655 [1] (2.07541275,2.43153763) tEnd=0.467845317 newWindSum=1 newOppSum=-2 oppSum=-2 windSum=1 windValue=1
 debugShowActiveSpans id=3 (3,5 1,2 3,0 2,1) t=0.32953467 (2.07541275,2.43153763) tEnd=0.5 other=1 otherT=0.414080655 otherIndex=1 windSum=-2 windValue=1 oppValue=0
 debugShowActiveSpans id=3 (3,5 1,2 3,0 2,1) t=0.5 (2.125,1.5) tEnd=0.59235675 other=4 otherT=0.125 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=4 (2,1 3,5) t=0 (2,1) tEnd=0.125 other=3 otherT=1 otherIndex=4 windSum=-1 windValue=1 oppValue=0
 debugShowActiveSpans id=4 (2,1 3,5) t=0 (2,1) tEnd=0.125 other=1 otherT=1 otherIndex=5 windSum=-1 windValue=1 oppValue=0
 debugShowActiveSpans id=4 (2,1 3,5) t=-0 (2,1) tEnd=0.125 other=2 otherT=0 otherIndex=1 windSum=-1 windValue=1 oppValue=0
 debugShowActiveSpans id=4 (2,1 3,5) t=0.125 (2.125,1.5) tEnd=0.349432839 other=3 otherT=0.5 otherIndex=2 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,3 1,2 5,3 2,1) t=0.467845317 (2.34943295,2.3977313) tEnd=0.976311205 other=4 otherT=0.349432839 otherIndex=4 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,3 1,2 5,3 2,1) t=0.976311205 (2.20154786,1.13714886) tEnd=1 other=3 otherT=0.59235675 otherIndex=3 windSum=1 windValue=1 oppValue=0
 activeOp op=diff miFrom=1 miTo=1 suFrom=1 suTo=1 result=0
 markDoneBinary id=3 (3,5 1,2 3,0 2,1) t=0.32953467 [1] (2.07541275,2.43153763) tEnd=0.5 newWindSum=-2 newOppSum=1 oppSum=1 windSum=-2 windValue=1
 debugShowActiveSpans id=3 (3,5 1,2 3,0 2,1) t=0.5 (2.125,1.5) tEnd=0.59235675 other=4 otherT=0.125 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=4 (2,1 3,5) t=0 (2,1) tEnd=0.125 other=3 otherT=1 otherIndex=4 windSum=-1 windValue=1 oppValue=0
 debugShowActiveSpans id=4 (2,1 3,5) t=0 (2,1) tEnd=0.125 other=1 otherT=1 otherIndex=5 windSum=-1 windValue=1 oppValue=0
 debugShowActiveSpans id=4 (2,1 3,5) t=-0 (2,1) tEnd=0.125 other=2 otherT=0 otherIndex=1 windSum=-1 windValue=1 oppValue=0
 debugShowActiveSpans id=4 (2,1 3,5) t=0.125 (2.125,1.5) tEnd=0.349432839 other=3 otherT=0.5 otherIndex=2 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,3 1,2 5,3 2,1) t=0.467845317 (2.34943295,2.3977313) tEnd=0.976311205 other=4 otherT=0.349432839 otherIndex=4 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,3 1,2 5,3 2,1) t=0.976311205 (2.20154786,1.13714886) tEnd=1 other=3 otherT=0.59235675 otherIndex=3 windSum=1 windValue=1 oppValue=0
 activeOp op=diff miFrom=1 miTo=1 suFrom=0 suTo=1 result=1
 findNextOp debugShowSort contourWinding=-1 oppContourWinding=1 sign=-1
 debugShowSort [2] {{2,1}, {3,5}} tStart=-0 tEnd=0.125 sign=-1 windValue=1 windSum=-1 -1->0 (max=-1) done=0 tiny=0 opp=0
 debugShowSort [3] {{0,3}, {1,2}, {5,3}, {2,1}} tStart=1 tEnd=0.976311205 sign=1 windValue=1 windSum=1 1->0 (max=1) done=0 tiny=0 opp=1
 debugShowSort [0] {{3,5}, {1,2}, {3,0}, {2,1}} tStart=1 tEnd=0.59235675 sign=1 windValue=1 windSum=-1 0->-1 (max=-1) done=1 tiny=0 opp=0
 debugShowSort [1] {{2,1}, {0,3}} tStart=0 tEnd=1 sign=-1 windValue=1 windSum=1 0->1 (max=1) done=1 tiny=0 opp=1
 findNextOp firstIndex=[2] sign=-1
 activeOp op=diff miFrom=1 miTo=0 suFrom=0 suTo=0 result=1
 activeOp op=diff miFrom=0 miTo=0 suFrom=0 suTo=1 result=0
 activeOp op=diff miFrom=0 miTo=1 suFrom=1 suTo=1 result=0
 markDoneBinary id=4 (2,1 3,5) t=0 [1] (2,1) tEnd=-0 newWindSum=-1 newOppSum=1 oppSum=1 windSum=-1 windValue=1
 markDoneBinary id=4 (2,1 3,5) t=0 [0] (2,1) tEnd=0 newWindSum=-1 newOppSum=1 oppSum=1 windSum=-1 windValue=1
 markDoneBinary id=4 (2,1 3,5) t=-0 [2] (2,1) tEnd=0.125 newWindSum=-1 newOppSum=1 oppSum=1 windSum=-1 windValue=1
 findNextOp from:[4] to:[1] start=5 end=3
 bridgeOp current id=4 from=(2.125,1.5) to=(2,1)
 findNextOp debugShowSort contourWinding=0 oppContourWinding=0 sign=-1
 debugShowSort [1] {{0,3}, {1,2}, {5,3}, {2,1}} tStart=0.976311205 tEnd=1 sign=-1 windValue=1 windSum=1 0->1 (max=1) done=0 tiny=0 opp=0
 debugShowSort [2] {{3,5}, {1,2}, {3,0}, {2,1}} tStart=0.59235675 tEnd=0.5 sign=1 windValue=1 windSum=? 0->-1 (max=-1) done=0 tiny=0 opp=1
 debugShowSort [3] {{0,3}, {1,2}, {5,3}, {2,1}} tStart=0.976311205 tEnd=0.467845317 sign=1 windValue=1 windSum=? 1->0 (max=1) done=0 tiny=0 opp=0
 debugShowSort [0] {{3,5}, {1,2}, {3,0}, {2,1}} tStart=0.59235675 tEnd=1 sign=-1 windValue=1 windSum=-1 -1->0 (max=-1) done=1 tiny=0 opp=1
 findNextOp firstIndex=[1] sign=-1
 activeOp op=diff miFrom=1 miTo=1 suFrom=0 suTo=1 result=1
 markWinding id=3 (3,5 1,2 3,0 2,1) t=0.5 [2] (2.125,1.5) tEnd=0.59235675 newWindSum=-1 newOppSum=1 oppSum=? windSum=? windValue=1
 findNextOp chase.append id=3
 activeOp op=diff miFrom=1 miTo=0 suFrom=1 suTo=1 result=0
 markDoneBinary id=1 (0,3 1,2 5,3 2,1) t=0.467845317 [2] (2.34943295,2.3977313) tEnd=0.976311205 newWindSum=1 newOppSum=-1 oppSum=? windSum=? windValue=1
 findNextOp chase.append id=1
 activeOp op=diff miFrom=0 miTo=0 suFrom=1 suTo=0 result=0
 markDoneBinary id=1 (0,3 1,2 5,3 2,1) t=0.976311205 [3] (2.20154786,1.13714886) tEnd=1 newWindSum=1 newOppSum=0 oppSum=0 windSum=1 windValue=1
 findNextOp from:[1] to:[3] start=3 end=2
 bridgeOp current id=1 from=(2,1) to=(2.20154786,1.13714886)
 path.moveTo(2.125,1.5);
 path.lineTo(2,1);
 path.cubicTo(2.07106638,1.04737759, 2.13820457,1.0930717, 2.20154786,1.13714886);
 findNextOp debugShowSort contourWinding=-1 oppContourWinding=1 sign=-1
 debugShowSort [0] {{3,5}, {1,2}, {3,0}, {2,1}} tStart=0.5 tEnd=0.59235675 sign=-1 windValue=1 windSum=-1 -1->0 (max=-1) done=0 tiny=0 opp=0
 debugShowSort [1] {{2,1}, {3,5}} tStart=0.125 tEnd=-0 sign=1 windValue=1 windSum=-1 0->-1 (max=-1) done=1 tiny=0 opp=0
 debugShowSort [2] {{3,5}, {1,2}, {3,0}, {2,1}} tStart=0.5 tEnd=0.32953467 sign=1 windValue=1 windSum=-2 -1->-2 (max=-2) done=1 tiny=0 opp=0
 debugShowSort [3] {{2,1}, {3,5}} tStart=0.125 tEnd=0.349432839 sign=-1 windValue=1 windSum=? -2->-1 (max=-2) done=0 tiny=0 opp=0
 findNextOp firstIndex=[0] sign=-1
 activeOp op=diff miFrom=1 miTo=1 suFrom=0 suTo=1 result=1
 activeOp op=diff miFrom=1 miTo=1 suFrom=1 suTo=1 result=0
 activeOp op=diff miFrom=1 miTo=1 suFrom=1 suTo=1 result=0
 markDoneBinary id=4 (2,1 3,5) t=0.125 [3] (2.125,1.5) tEnd=0.349432839 newWindSum=-2 newOppSum=1 oppSum=? windSum=? windValue=1
 findNextOp chase.append id=4
 markDoneBinary id=3 (3,5 1,2 3,0 2,1) t=0.5 [2] (2.125,1.5) tEnd=0.59235675 newWindSum=-1 newOppSum=1 oppSum=1 windSum=-1 windValue=1
 findNextOp from:[3] to:[4] start=3 end=2
 bridgeOp current id=3 from=(2.20154786,1.13714886) to=(2.125,1.5)
 path.cubicTo(2.17544317,1.23998928, 2.14808917,1.36146486, 2.125,1.5);
 path.close();
 assemble
 assemble contour    start=(2.125,1.5) end=(2.125,1.5)
 </div>

 <div id="cubicOp53da">
 $1 = {{fX = 2.20154786, fY = 1.13714886}, {fX = 2.31676745, fY = 0.683232486}, {fX = 2.40764332, fY = 0.592356741}, {fX = 2, fY = 1}}
 </div>

 <div id="cubicOp53db">
 $5 = {{x = 2.2015477442470841, y = 1.1371488033015216}, {x = 2.3167674423028313, y = 0.68323255769716895}, {x = 2.4076432497431508, y = 0.59235675025684875}, {x = 2, y = 1}}
 (gdb) p startEdge
 $2 = {{x = 2.2015477442470841, y = 1.1371488033015216}, {x = 2.6554639898514365, y = 1.2523685013572687}}
 (gdb) p endEdge
 $3 = {{x = 2, y = 1}, {x = 2.4076432497431512, y = 1.4076432497431508}}
 </div>

 <div id="cubicOp54d">
   SimplifyNew_Test [cubicOp54d]
 {{0,4}, {1,3}, {5,4}, {4,2}},
 {{4,2}, {0,4}},
 op difference
 {{4,5}, {2,4}, {4,0}, {3,1}},
 {{3,1}, {4,5}},
 debugShowCubicIntersection no self intersect {{4,5}, {2,4}, {4,0}, {3,1}}
 debugShowCubicLineIntersection wtTs[0]=0 {{4,5}, {2,4}, {4,0}, {3,1}} {{4,5}} wtTs[1]=0.583333333 {{3.1938657407407405,1.7754629629629624}} wtTs[2]=1 {{3,1}} wnTs[0]=1 {{3,1}, {4,5}} wnTs[1]=0.193865741 wnTs[2]=0
 debugShowCubicIntersection no intersect {{4,5}, {2,4}, {4,0}, {3,1}} {{0,4}, {1,3}, {5,4}, {4,2}}
 debugShowCubicLineIntersection wtTs[0]=0.467349523 {{4,5}, {2,4}, {4,0}, {3,1}} {{3.1023548730676489,2.4488225634661758}} wnTs[0]=0.224411 {{4,2}, {0,4}}
 debugShowCubicLineIntersection wtTs[0]=0.649488354 {{0,4}, {1,3}, {5,4}, {4,2}} {{3.5531651685912107,3.2126606743648427}} wnTs[0]=0.553165 {{3,1}, {4,5}}
 debugShowLineIntersection wtTs[0]=0.333333333 {{3,1}, {4,5}} {{3.333333333333333,2.333333333333333}} wnTs[0]=0.166667 {{4,2}, {0,4}}
 debugShowCubicIntersection no self intersect {{0,4}, {1,3}, {5,4}, {4,2}}
 debugShowCubicLineIntersection wtTs[0]=0 {{0,4}, {1,3}, {5,4}, {4,2}} {{0,4}} wtTs[1]=0.166666667 {{0.7129629629629628,3.6435185185185186}} wtTs[2]=1 {{4,2}} wnTs[0]=1 {{4,2}, {0,4}} wnTs[1]=0.821759259 wnTs[2]=0
 debugShowActiveSpans id=3 (4,5 2,4 4,0 3,1) t=0 (4,5) tEnd=0.467349523 other=4 otherT=1 otherIndex=4 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (4,5 2,4 4,0 3,1) t=0.467349523 (3.10235476,2.4488225) tEnd=0.583333333 other=2 otherT=0.224411282 otherIndex=2 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (4,5 2,4 4,0 3,1) t=0.583333333 (3.19386578,1.77546299) tEnd=1 other=4 otherT=0.193865741 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=4 (3,1 4,5) t=0 (3,1) tEnd=0.193865741 other=3 otherT=1 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=4 (3,1 4,5) t=0.193865741 (3.19386578,1.77546299) tEnd=0.333333333 other=3 otherT=0.583333333 otherIndex=2 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=4 (3,1 4,5) t=0.333333333 (3.33333325,2.33333325) tEnd=0.553165169 other=2 otherT=0.166666667 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=4 (3,1 4,5) t=0.553165169 (3.5531652,3.21266079) tEnd=1 other=1 otherT=0.649488354 otherIndex=2 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,4 1,3 5,4 4,2) t=0 (0,4) tEnd=0.166666667 other=2 otherT=1 otherIndex=4 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,4 1,3 5,4 4,2) t=0.166666667 (0.712962985,3.64351845) tEnd=0.649488354 other=2 otherT=0.821759259 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,4 1,3 5,4 4,2) t=0.649488354 (3.5531652,3.21266079) tEnd=1 other=4 otherT=0.553165169 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=2 (4,2 0,4) t=0 (4,2) tEnd=0.166666667 other=1 otherT=1 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=2 (4,2 0,4) t=0.166666667 (3.33333325,2.33333325) tEnd=0.224411282 other=4 otherT=0.333333333 otherIndex=2 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=2 (4,2 0,4) t=0.224411282 (3.10235476,2.4488225) tEnd=0.821759259 other=3 otherT=0.467349523 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=2 (4,2 0,4) t=0.821759259 (0.712962985,3.64351845) tEnd=1 other=1 otherT=0.166666667 otherIndex=1 windSum=? windValue=1 oppValue=0
 findTop debugShowSort contourWinding=0 oppContourWinding=0 sign=1
 debugShowSort [0] {{4,5}, {2,4}, {4,0}, {3,1}} tStart=1 tEnd=0.583333333 sign=1 windValue=1 windSum=? 0->-1 (max=-1) done=0 tiny=0 opp=0
 debugShowSort [1] {{3,1}, {4,5}} tStart=0 tEnd=0.193865741 sign=-1 windValue=1 windSum=? -1->0 (max=-1) done=0 tiny=0 opp=0
 findTop swap serpentine=0
 markWinding id=3 (4,5 2,4 4,0 3,1) t=0.583333333 [2] (3.19386578,1.77546299) tEnd=1 newWindSum=1 newOppSum=0 oppSum=? windSum=? windValue=1
 markWinding id=3 (4,5 2,4 4,0 3,1) t=0.583333333 [2] (3.19386578,1.77546299) tEnd=1 newWindSum=1 newOppSum=0 oppSum=0 windSum=1 windValue=1
 markWinding id=4 (3,1 4,5) t=0 [0] (3,1) tEnd=0.193865741 newWindSum=1 newOppSum=0 oppSum=? windSum=? windValue=1
 activeOp op=diff miFrom=0 miTo=0 suFrom=1 suTo=0 result=0
 markDoneBinary id=3 (4,5 2,4 4,0 3,1) t=0.583333333 [2] (3.19386578,1.77546299) tEnd=1 newWindSum=1 newOppSum=0 oppSum=0 windSum=1 windValue=1
 debugShowActiveSpans id=3 (4,5 2,4 4,0 3,1) t=0 (4,5) tEnd=0.467349523 other=4 otherT=1 otherIndex=4 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (4,5 2,4 4,0 3,1) t=0.467349523 (3.10235476,2.4488225) tEnd=0.583333333 other=2 otherT=0.224411282 otherIndex=2 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=4 (3,1 4,5) t=0 (3,1) tEnd=0.193865741 other=3 otherT=1 otherIndex=3 windSum=1 windValue=1 oppValue=0
 debugShowActiveSpans id=4 (3,1 4,5) t=0.193865741 (3.19386578,1.77546299) tEnd=0.333333333 other=3 otherT=0.583333333 otherIndex=2 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=4 (3,1 4,5) t=0.333333333 (3.33333325,2.33333325) tEnd=0.553165169 other=2 otherT=0.166666667 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=4 (3,1 4,5) t=0.553165169 (3.5531652,3.21266079) tEnd=1 other=1 otherT=0.649488354 otherIndex=2 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,4 1,3 5,4 4,2) t=0 (0,4) tEnd=0.166666667 other=2 otherT=1 otherIndex=4 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,4 1,3 5,4 4,2) t=0.166666667 (0.712962985,3.64351845) tEnd=0.649488354 other=2 otherT=0.821759259 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,4 1,3 5,4 4,2) t=0.649488354 (3.5531652,3.21266079) tEnd=1 other=4 otherT=0.553165169 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=2 (4,2 0,4) t=0 (4,2) tEnd=0.166666667 other=1 otherT=1 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=2 (4,2 0,4) t=0.166666667 (3.33333325,2.33333325) tEnd=0.224411282 other=4 otherT=0.333333333 otherIndex=2 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=2 (4,2 0,4) t=0.224411282 (3.10235476,2.4488225) tEnd=0.821759259 other=3 otherT=0.467349523 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=2 (4,2 0,4) t=0.821759259 (0.712962985,3.64351845) tEnd=1 other=1 otherT=0.166666667 otherIndex=1 windSum=? windValue=1 oppValue=0
 activeOp op=diff miFrom=0 miTo=0 suFrom=1 suTo=0 result=0
 markDoneBinary id=4 (3,1 4,5) t=0 [0] (3,1) tEnd=0.193865741 newWindSum=1 newOppSum=0 oppSum=0 windSum=1 windValue=1
 findChaseOp debugShowSort contourWinding=0 oppContourWinding=0 sign=-1
 debugShowSort [0] {{4,5}, {2,4}, {4,0}, {3,1}} tStart=0.583333333 tEnd=1 sign=-1 windValue=1 windSum=1 0->1 (max=1) done=1 tiny=0 opp=0
 debugShowSort [1] {{3,1}, {4,5}} tStart=0.193865741 tEnd=0 sign=1 windValue=1 windSum=1 1->0 (max=1) done=1 tiny=0 opp=0
 debugShowSort [2] {{4,5}, {2,4}, {4,0}, {3,1}} tStart=0.583333333 tEnd=0.467349523 sign=1 windValue=1 windSum=? 0->-1 (max=-1) done=0 tiny=0 opp=0
 debugShowSort [3] {{3,1}, {4,5}} tStart=0.193865741 tEnd=0.333333333 sign=-1 windValue=1 windSum=? -1->0 (max=-1) done=0 tiny=0 opp=0
 findChaseOp debugShowSort contourWinding=0 oppContourWinding=0 sign=-1
 debugShowSort [0] {{4,5}, {2,4}, {4,0}, {3,1}} tStart=0.583333333 tEnd=1 sign=-1 windValue=1 windSum=1 0->1 (max=1) done=1 tiny=0 opp=0
 debugShowSort [1] {{3,1}, {4,5}} tStart=0.193865741 tEnd=0 sign=1 windValue=1 windSum=1 1->0 (max=1) done=1 tiny=0 opp=0
 debugShowSort [2] {{4,5}, {2,4}, {4,0}, {3,1}} tStart=0.583333333 tEnd=0.467349523 sign=1 windValue=1 windSum=? 0->-1 (max=-1) done=0 tiny=0 opp=0
 debugShowSort [3] {{3,1}, {4,5}} tStart=0.193865741 tEnd=0.333333333 sign=-1 windValue=1 windSum=? -1->0 (max=-1) done=0 tiny=0 opp=0
 markWinding id=3 (4,5 2,4 4,0 3,1) t=0.467349523 [1] (3.10235476,2.4488225) tEnd=0.583333333 newWindSum=-1 newOppSum=0 oppSum=? windSum=? windValue=1
 markWinding id=4 (3,1 4,5) t=0.193865741 [1] (3.19386578,1.77546299) tEnd=0.333333333 newWindSum=-1 newOppSum=0 oppSum=? windSum=? windValue=1
 debugShowActiveSpans id=3 (4,5 2,4 4,0 3,1) t=0 (4,5) tEnd=0.467349523 other=4 otherT=1 otherIndex=4 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (4,5 2,4 4,0 3,1) t=0.467349523 (3.10235476,2.4488225) tEnd=0.583333333 other=2 otherT=0.224411282 otherIndex=2 windSum=-1 windValue=1 oppValue=0
 debugShowActiveSpans id=4 (3,1 4,5) t=0.193865741 (3.19386578,1.77546299) tEnd=0.333333333 other=3 otherT=0.583333333 otherIndex=2 windSum=-1 windValue=1 oppValue=0
 debugShowActiveSpans id=4 (3,1 4,5) t=0.333333333 (3.33333325,2.33333325) tEnd=0.553165169 other=2 otherT=0.166666667 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=4 (3,1 4,5) t=0.553165169 (3.5531652,3.21266079) tEnd=1 other=1 otherT=0.649488354 otherIndex=2 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,4 1,3 5,4 4,2) t=0 (0,4) tEnd=0.166666667 other=2 otherT=1 otherIndex=4 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,4 1,3 5,4 4,2) t=0.166666667 (0.712962985,3.64351845) tEnd=0.649488354 other=2 otherT=0.821759259 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,4 1,3 5,4 4,2) t=0.649488354 (3.5531652,3.21266079) tEnd=1 other=4 otherT=0.553165169 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=2 (4,2 0,4) t=0 (4,2) tEnd=0.166666667 other=1 otherT=1 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=2 (4,2 0,4) t=0.166666667 (3.33333325,2.33333325) tEnd=0.224411282 other=4 otherT=0.333333333 otherIndex=2 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=2 (4,2 0,4) t=0.224411282 (3.10235476,2.4488225) tEnd=0.821759259 other=3 otherT=0.467349523 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=2 (4,2 0,4) t=0.821759259 (0.712962985,3.64351845) tEnd=1 other=1 otherT=0.166666667 otherIndex=1 windSum=? windValue=1 oppValue=0
 activeOp op=diff miFrom=0 miTo=0 suFrom=0 suTo=1 result=0
 markDoneBinary id=3 (4,5 2,4 4,0 3,1) t=0.467349523 [1] (3.10235476,2.4488225) tEnd=0.583333333 newWindSum=-1 newOppSum=0 oppSum=0 windSum=-1 windValue=1
 findChaseOp debugShowSort contourWinding=? oppContourWinding=? sign=1
 debugShowSort [0] {{4,2}, {0,4}} tStart=0.224411282 tEnd=0.166666667 sign=1 windValue=1 windSum=? ?->? (max=?) done=0 tiny=0 opp=0
 debugShowSort [1] {{4,5}, {2,4}, {4,0}, {3,1}} tStart=0.467349523 tEnd=0.583333333 sign=-1 windValue=1 windSum=-1 ?->? (max=?) done=1 tiny=0 opp=1
 debugShowSort [2] {{4,2}, {0,4}} tStart=0.224411282 tEnd=0.821759259 sign=-1 windValue=1 windSum=? ?->? (max=?) done=0 tiny=0 opp=0
 debugShowSort [3] {{4,5}, {2,4}, {4,0}, {3,1}} tStart=0.467349523 tEnd=0 sign=1 windValue=1 windSum=? ?->? (max=?) done=0 tiny=0 opp=1
 findChaseOp debugShowSort contourWinding=-1 oppContourWinding=0 sign=-1
 debugShowSort [1] {{4,5}, {2,4}, {4,0}, {3,1}} tStart=0.467349523 tEnd=0.583333333 sign=-1 windValue=1 windSum=-1 -1->0 (max=-1) done=1 tiny=0 opp=0
 debugShowSort [2] {{4,2}, {0,4}} tStart=0.224411282 tEnd=0.821759259 sign=-1 windValue=1 windSum=? 0->1 (max=1) done=0 tiny=0 opp=1
 debugShowSort [3] {{4,5}, {2,4}, {4,0}, {3,1}} tStart=0.467349523 tEnd=0 sign=1 windValue=1 windSum=? 0->-1 (max=-1) done=0 tiny=0 opp=0
 debugShowSort [0] {{4,2}, {0,4}} tStart=0.224411282 tEnd=0.166666667 sign=1 windValue=1 windSum=? 1->0 (max=1) done=0 tiny=0 opp=1
 markWinding id=2 (4,2 0,4) t=0.224411282 [2] (3.10235476,2.4488225) tEnd=0.821759259 newWindSum=1 newOppSum=0 oppSum=? windSum=? windValue=1
 markWinding id=3 (4,5 2,4 4,0 3,1) t=0 [0] (4,5) tEnd=0.467349523 newWindSum=-1 newOppSum=1 oppSum=? windSum=? windValue=1
 markWinding id=4 (3,1 4,5) t=0.553165169 [3] (3.5531652,3.21266079) tEnd=1 newWindSum=-1 newOppSum=1 oppSum=? windSum=? windValue=1
 markWinding id=2 (4,2 0,4) t=0.166666667 [1] (3.33333325,2.33333325) tEnd=0.224411282 newWindSum=1 newOppSum=-1 oppSum=? windSum=? windValue=1
 debugShowActiveSpans id=3 (4,5 2,4 4,0 3,1) t=0 (4,5) tEnd=0.467349523 other=4 otherT=1 otherIndex=4 windSum=-1 windValue=1 oppValue=0
 debugShowActiveSpans id=4 (3,1 4,5) t=0.193865741 (3.19386578,1.77546299) tEnd=0.333333333 other=3 otherT=0.583333333 otherIndex=2 windSum=-1 windValue=1 oppValue=0
 debugShowActiveSpans id=4 (3,1 4,5) t=0.333333333 (3.33333325,2.33333325) tEnd=0.553165169 other=2 otherT=0.166666667 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=4 (3,1 4,5) t=0.553165169 (3.5531652,3.21266079) tEnd=1 other=1 otherT=0.649488354 otherIndex=2 windSum=-1 windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,4 1,3 5,4 4,2) t=0 (0,4) tEnd=0.166666667 other=2 otherT=1 otherIndex=4 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,4 1,3 5,4 4,2) t=0.166666667 (0.712962985,3.64351845) tEnd=0.649488354 other=2 otherT=0.821759259 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,4 1,3 5,4 4,2) t=0.649488354 (3.5531652,3.21266079) tEnd=1 other=4 otherT=0.553165169 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=2 (4,2 0,4) t=0 (4,2) tEnd=0.166666667 other=1 otherT=1 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=2 (4,2 0,4) t=0.166666667 (3.33333325,2.33333325) tEnd=0.224411282 other=4 otherT=0.333333333 otherIndex=2 windSum=1 windValue=1 oppValue=0
 debugShowActiveSpans id=2 (4,2 0,4) t=0.224411282 (3.10235476,2.4488225) tEnd=0.821759259 other=3 otherT=0.467349523 otherIndex=1 windSum=1 windValue=1 oppValue=0
 debugShowActiveSpans id=2 (4,2 0,4) t=0.821759259 (0.712962985,3.64351845) tEnd=1 other=1 otherT=0.166666667 otherIndex=1 windSum=? windValue=1 oppValue=0
 activeOp op=diff miFrom=0 miTo=1 suFrom=0 suTo=0 result=1
 findNextOp debugShowSort contourWinding=1 oppContourWinding=0 sign=1
 debugShowSort [1] {{4,2}, {0,4}} tStart=0.821759259 tEnd=0.224411282 sign=1 windValue=1 windSum=1 1->0 (max=1) done=0 tiny=0 opp=0
 debugShowSort [2] {{0,4}, {1,3}, {5,4}, {4,2}} tStart=0.166666667 tEnd=0 sign=1 windValue=1 windSum=? 0->-1 (max=-1) done=0 tiny=0 opp=0
 debugShowSort [3] {{4,2}, {0,4}} tStart=0.821759259 tEnd=1 sign=-1 windValue=1 windSum=? -1->0 (max=-1) done=0 tiny=0 opp=0
 debugShowSort [0] {{0,4}, {1,3}, {5,4}, {4,2}} tStart=0.166666667 tEnd=0.649488354 sign=-1 windValue=1 windSum=? 0->1 (max=1) done=0 tiny=0 opp=0
 findNextOp firstIndex=[1] sign=1
 activeOp op=diff miFrom=0 miTo=1 suFrom=0 suTo=0 result=1
 markWinding id=1 (0,4 1,3 5,4 4,2) t=0 [0] (0,4) tEnd=0.166666667 newWindSum=-1 newOppSum=0 oppSum=? windSum=? windValue=1
 markWinding id=2 (4,2 0,4) t=0.821759259 [3] (0.712962985,3.64351845) tEnd=1 newWindSum=-1 newOppSum=0 oppSum=? windSum=? windValue=1
 findNextOp chase.append id=2
 activeOp op=diff miFrom=1 miTo=0 suFrom=0 suTo=0 result=1
 activeOp op=diff miFrom=0 miTo=1 suFrom=0 suTo=0 result=1
 markWinding id=1 (0,4 1,3 5,4 4,2) t=0.166666667 [1] (0.712962985,3.64351845) tEnd=0.649488354 newWindSum=1 newOppSum=0 oppSum=? windSum=? windValue=1
 findNextOp chase.append id=1
 markDoneBinary id=2 (4,2 0,4) t=0.224411282 [2] (3.10235476,2.4488225) tEnd=0.821759259 newWindSum=1 newOppSum=0 oppSum=0 windSum=1 windValue=1
 findNextOp from:[2] to:[1] start=1 end=0
 bridgeOp current id=2 from=(3.10235476,2.4488225) to=(0.712962985,3.64351845)
 findNextOp simple
 markDoneBinary id=1 (0,4 1,3 5,4 4,2) t=0 [0] (0,4) tEnd=0.166666667 newWindSum=-1 newOppSum=0 oppSum=0 windSum=-1 windValue=1
 bridgeOp current id=1 from=(0.712962985,3.64351845) to=(0,4)
 path.moveTo(3.10235476,2.4488225);
 path.lineTo(0.712962985,3.64351845);
 path.cubicTo(0.416666657,3.72222233, 0.166666672,3.83333325, 0,4);
 findNextOp debugShowSort contourWinding=-1 oppContourWinding=0 sign=-1
 debugShowSort [3] {{4,2}, {0,4}} tStart=0.821759259 tEnd=1 sign=-1 windValue=1 windSum=-1 -1->0 (max=-1) done=0 tiny=0 opp=0
 debugShowSort [0] {{0,4}, {1,3}, {5,4}, {4,2}} tStart=0.166666667 tEnd=0.649488354 sign=-1 windValue=1 windSum=1 0->1 (max=1) done=0 tiny=0 opp=0
 debugShowSort [1] {{4,2}, {0,4}} tStart=0.821759259 tEnd=0.224411282 sign=1 windValue=1 windSum=1 1->0 (max=1) done=1 tiny=0 opp=0
 debugShowSort [2] {{0,4}, {1,3}, {5,4}, {4,2}} tStart=0.166666667 tEnd=0 sign=1 windValue=1 windSum=-1 0->-1 (max=-1) done=1 tiny=0 opp=0
 findNextOp firstIndex=[3] sign=-1
 activeOp op=diff miFrom=0 miTo=1 suFrom=0 suTo=0 result=1
 activeOp op=diff miFrom=1 miTo=0 suFrom=0 suTo=0 result=1
 activeOp op=diff miFrom=0 miTo=1 suFrom=0 suTo=0 result=1
 markDoneBinary id=2 (4,2 0,4) t=0.821759259 [3] (0.712962985,3.64351845) tEnd=1 newWindSum=-1 newOppSum=0 oppSum=0 windSum=-1 windValue=1
 findNextOp from:[2] to:[1] start=1 end=2
 bridgeOp current id=2 from=(0,4) to=(0.712962985,3.64351845)
 findNextOp debugShowSort contourWinding=1 oppContourWinding=0 sign=1
 debugShowSort [2] {{0,4}, {1,3}, {5,4}, {4,2}} tStart=0.649488354 tEnd=0.166666667 sign=1 windValue=1 windSum=1 1->0 (max=1) done=0 tiny=0 opp=0
 debugShowSort [3] {{3,1}, {4,5}} tStart=0.553165169 tEnd=1 sign=-1 windValue=1 windSum=-1 0->1 (max=1) done=0 tiny=0 opp=1
 debugShowSort [0] {{0,4}, {1,3}, {5,4}, {4,2}} tStart=0.649488354 tEnd=1 sign=-1 windValue=1 windSum=? 0->1 (max=1) done=0 tiny=0 opp=0
 debugShowSort [1] {{3,1}, {4,5}} tStart=0.553165169 tEnd=0.333333333 sign=1 windValue=1 windSum=? 1->0 (max=1) done=0 tiny=0 opp=1
 findNextOp firstIndex=[2] sign=1
 activeOp op=diff miFrom=0 miTo=0 suFrom=0 suTo=1 result=0
 activeOp op=diff miFrom=0 miTo=1 suFrom=1 suTo=1 result=0
 markDoneBinary id=1 (0,4 1,3 5,4 4,2) t=0.649488354 [2] (3.5531652,3.21266079) tEnd=1 newWindSum=1 newOppSum=1 oppSum=? windSum=? windValue=1
 markDoneBinary id=2 (4,2 0,4) t=0 [0] (4,2) tEnd=0.166666667 newWindSum=1 newOppSum=1 oppSum=? windSum=? windValue=1
 findNextOp chase.append id=2
 activeOp op=diff miFrom=1 miTo=1 suFrom=1 suTo=0 result=1
 markWinding id=4 (3,1 4,5) t=0.333333333 [2] (3.33333325,2.33333325) tEnd=0.553165169 newWindSum=1 newOppSum=1 oppSum=? windSum=? windValue=1
 findNextOp chase.append id=4
 markDoneBinary id=1 (0,4 1,3 5,4 4,2) t=0.166666667 [1] (0.712962985,3.64351845) tEnd=0.649488354 newWindSum=1 newOppSum=0 oppSum=0 windSum=1 windValue=1
 findNextOp from:[1] to:[4] start=3 end=2
 bridgeOp current id=1 from=(0.712962985,3.64351845) to=(3.5531652,3.21266079)
 path.lineTo(0.712962985,3.64351845);
 path.cubicTo(1.57131267,3.41551948, 2.81819034,3.45948982, 3.5531652,3.21266079);
 findNextOp debugShowSort contourWinding=0 oppContourWinding=1 sign=-1
 debugShowSort [3] {{3,1}, {4,5}} tStart=0.333333333 tEnd=0.553165169 sign=-1 windValue=1 windSum=1 0->1 (max=1) done=0 tiny=0 opp=0
 debugShowSort [0] {{4,2}, {0,4}} tStart=0.166666667 tEnd=0 sign=1 windValue=1 windSum=1 1->0 (max=1) done=1 tiny=0 opp=1
 debugShowSort [1] {{3,1}, {4,5}} tStart=0.333333333 tEnd=0.193865741 sign=1 windValue=1 windSum=-1 1->0 (max=1) done=0 tiny=0 opp=0
 debugShowSort [2] {{4,2}, {0,4}} tStart=0.166666667 tEnd=0.224411282 sign=-1 windValue=1 windSum=1 0->1 (max=1) done=0 tiny=0 opp=1
 findNextOp firstIndex=[3] sign=-1
 activeOp op=diff miFrom=1 miTo=0 suFrom=1 suTo=1 result=0
 activeOp op=diff miFrom=0 miTo=0 suFrom=1 suTo=0 result=0
 activeOp op=diff miFrom=0 miTo=1 suFrom=0 suTo=0 result=1
 markDoneBinary id=4 (3,1 4,5) t=0.333333333 [2] (3.33333325,2.33333325) tEnd=0.553165169 newWindSum=1 newOppSum=1 oppSum=1 windSum=1 windValue=1
 findNextOp from:[4] to:[2] start=1 end=2
 bridgeOp current id=4 from=(3.5531652,3.21266079) to=(3.33333325,2.33333325)
 findNextOp debugShowSort contourWinding=1 oppContourWinding=-1 sign=1
 debugShowSort [0] {{4,2}, {0,4}} tStart=0.224411282 tEnd=0.166666667 sign=1 windValue=1 windSum=1 1->0 (max=1) done=0 tiny=0 opp=0
 debugShowSort [1] {{4,5}, {2,4}, {4,0}, {3,1}} tStart=0.467349523 tEnd=0.583333333 sign=-1 windValue=1 windSum=-1 -1->0 (max=-1) done=1 tiny=0 opp=1
 debugShowSort [2] {{4,2}, {0,4}} tStart=0.224411282 tEnd=0.821759259 sign=-1 windValue=1 windSum=1 0->1 (max=1) done=1 tiny=0 opp=0
 debugShowSort [3] {{4,5}, {2,4}, {4,0}, {3,1}} tStart=0.467349523 tEnd=0 sign=1 windValue=1 windSum=-1 0->-1 (max=-1) done=0 tiny=0 opp=1
 findNextOp firstIndex=[0] sign=1
 activeOp op=diff miFrom=0 miTo=0 suFrom=1 suTo=0 result=0
 activeOp op=diff miFrom=0 miTo=1 suFrom=0 suTo=0 result=1
 activeOp op=diff miFrom=1 miTo=1 suFrom=0 suTo=1 result=1
 markDoneBinary id=2 (4,2 0,4) t=0.166666667 [1] (3.33333325,2.33333325) tEnd=0.224411282 newWindSum=1 newOppSum=-1 oppSum=-1 windSum=1 windValue=1
 findNextOp from:[2] to:[2] start=2 end=3
 sharedlibrary apply-load-rules all
 bridgeOp current id=2 from=(3.33333325,2.33333325) to=(3.10235476,2.4488225)
 path.lineTo(3.33333325,2.33333325);
 path.lineTo(3.10235476,2.4488225);
 path.close();
 debugShowActiveSpans id=3 (4,5 2,4 4,0 3,1) t=0 (4,5) tEnd=0.467349523 other=4 otherT=1 otherIndex=4 windSum=-1 windValue=1 oppValue=0
 debugShowActiveSpans id=4 (3,1 4,5) t=0.193865741 (3.19386578,1.77546299) tEnd=0.333333333 other=3 otherT=0.583333333 otherIndex=2 windSum=-1 windValue=1 oppValue=0
 debugShowActiveSpans id=4 (3,1 4,5) t=0.553165169 (3.5531652,3.21266079) tEnd=1 other=1 otherT=0.649488354 otherIndex=2 windSum=-1 windValue=1 oppValue=0
 activeOp op=diff miFrom=0 miTo=0 suFrom=0 suTo=1 result=0
 markDoneBinary id=4 (3,1 4,5) t=0.193865741 [1] (3.19386578,1.77546299) tEnd=0.333333333 newWindSum=-1 newOppSum=0 oppSum=0 windSum=-1 windValue=1
 debugShowActiveSpans id=3 (4,5 2,4 4,0 3,1) t=0 (4,5) tEnd=0.467349523 other=4 otherT=1 otherIndex=4 windSum=-1 windValue=1 oppValue=0
 debugShowActiveSpans id=4 (3,1 4,5) t=0.553165169 (3.5531652,3.21266079) tEnd=1 other=1 otherT=0.649488354 otherIndex=2 windSum=-1 windValue=1 oppValue=0
 activeOp op=diff miFrom=1 miTo=1 suFrom=1 suTo=0 result=1
 findNextOp simple
 markDoneBinary id=4 (3,1 4,5) t=0.553165169 [3] (3.5531652,3.21266079) tEnd=1 newWindSum=-1 newOppSum=1 oppSum=1 windSum=-1 windValue=1
 bridgeOp current id=4 from=(3.5531652,3.21266079) to=(4,5)
 findNextOp debugShowSort contourWinding=0 oppContourWinding=1 sign=1
 debugShowSort [3] {{4,5}, {2,4}, {4,0}, {3,1}} tStart=0.467349523 tEnd=0 sign=1 windValue=1 windSum=-1 0->-1 (max=-1) done=0 tiny=0 opp=0
 debugShowSort [0] {{4,2}, {0,4}} tStart=0.224411282 tEnd=0.166666667 sign=1 windValue=1 windSum=1 1->0 (max=1) done=1 tiny=0 opp=1
 debugShowSort [1] {{4,5}, {2,4}, {4,0}, {3,1}} tStart=0.467349523 tEnd=0.583333333 sign=-1 windValue=1 windSum=-1 -1->0 (max=-1) done=1 tiny=0 opp=0
 debugShowSort [2] {{4,2}, {0,4}} tStart=0.224411282 tEnd=0.821759259 sign=-1 windValue=1 windSum=1 0->1 (max=1) done=1 tiny=0 opp=1
 findNextOp firstIndex=[3] sign=1
 activeOp op=diff miFrom=1 miTo=0 suFrom=1 suTo=1 result=0
 activeOp op=diff miFrom=0 miTo=0 suFrom=1 suTo=0 result=0
 activeOp op=diff miFrom=0 miTo=1 suFrom=0 suTo=0 result=1
 markDoneBinary id=3 (4,5 2,4 4,0 3,1) t=0 [0] (4,5) tEnd=0.467349523 newWindSum=-1 newOppSum=1 oppSum=1 windSum=-1 windValue=1
 findNextOp from:[3] to:[2] start=2 end=3
 bridgeOp current id=3 from=(4,5) to=(3.10235476,2.4488225)
 path.moveTo(3.5531652,3.21266079);
 path.lineTo(4,5);
 path.cubicTo(3.06530094,4.53265047, 3.00426435,3.41005421, 3.10235476,2.4488225);
 </div>

 <div id="cubicOp54da">
 computed quadratics given
   {{0,4}, {1,3}, {5,4}, {4,2}},
   {{4,5}, {2,4}, {4,0}, {3,1}},
 computed quadratics set 1
   {{0,4}, {0.313151522,3.71221453}, {0.886767898,3.60197476}},
   {{0.886767898,3.60197476}, {1.46038427,3.491735}, {2.10714698,3.44196686}},
   {{2.10714698,3.44196686}, {3.12180288,3.38575704}, {3.75968569,3.1281838}},
   {{3.75968569,3.1281838}, {4.3975685,2.87061055}, {4,2}},
 computed quadratics set 2
   {{4,5}, {3.59856947,4.79217123}, {3.39068129,4.44939202}},
   {{3.39068129,4.44939202}, {3.03659239,3.81843234}, {3.06844529,3.02100922}},
   {{3.06844529,3.02100922}, {3.09985637,2.22825976}, {3.22177695,1.60368348}},
   {{3.22177695,1.60368348}, {3.35239933,0.944897345}, {3.25461667,0.846601983}},
   {{3.25461667,0.846601983}, {3.19302952,0.807536747}, {3,1}},
 </div>

 <div id="cubicOp54db">
   {{3.39068129,4.44939202}, {3.03659239,3.81843234}, {3.06844529,3.02100922}},
   {{2.10714698,3.44196686}, {3.12180288,3.38575704}, {3.75968569,3.1281838}},
 </div>

 <div id="cubicOp54dc">
 (gdb) p cSub1
 $2 = {{x = 3.0774019473063863, y = 3.35198509346713}, {x = 3.0763003260366699, y = 3.3355427495692078}, {x = 3.0753041923884408, y = 3.3190757607779853}, {x = 3.0744102085015879, y = 3.3025879417907196}}
 (gdb) p cSub2
 $3 = {{x = 3.053913680774329, y = 3.3310471586283938}, {x = 3.0685526504546785, y = 3.3285797268698434}, {x = 3.0831050944309708, y = 3.3260658459407866}, {x = 3.0975671980059394, y = 3.3235031316554351}}
 (gdb) p s1
 $4 = {{x = 3.0774019473063863, y = 3.35198509346713}, {x = 3.0757503498668397, y = 3.327320623945933}, {x = 3.0744102085015879, y = 3.3025879417907196}}
 (gdb) p s2
 $5 = {{x = 3.053913680774329, y = 3.3310471586283938}, {x = 3.0758730889691694, y = 3.3273466070370152}, {x = 3.0975671980059394, y = 3.3235031316554351}}
 </div>

 <div id="cubicOp54dd">
 {{x = 3.053913680774329, y = 3.3310471586283938}, {x = 3.0758730889691694, y = 3.3273466070370152}, {x = 3.0975671980059394, y = 3.3235031316554351}}
 {{x = 3.0744102085015879, y = 3.3025879417907196}, {x = 3.0774019473063863, y = 3.35198509346713}}
 </div>

 <div id="cubicOp55d">
   SimplifyNew_Test [cubicOp55d]
 {{0,5}, {1,3}, {3,2}, {5,0}},
 {{5,0}, {0,5}},
 op difference
 {{2,3}, {0,5}, {5,0}, {3,1}},
 {{3,1}, {2,3}},
 debugShowCubicIntersection no self intersect {{0,5}, {1,3}, {3,2}, {5,0}}
 debugShowCubicLineIntersection wtTs[0]=0 {{0,5}, {1,3}, {3,2}, {5,0}} {{0,5}} wtTs[1]=1 {{5,0}} wnTs[0]=1 {{5,0}, {0,5}} wnTs[1]=0
 debugShowCubicIntersection wtTs[0]=0.658239823 {{0,5}, {1,3}, {3,2}, {5,0}} {{2.9893565350663849,1.7799961946192431}} wnTs[0]=0.613267 {{2,3}, {0,5}, {5,0}, {3,1}}
 debugShowCubicLineIntersection wtTs[0]=0.540876747 {{0,5}, {1,3}, {3,2}, {5,0}} {{2.3420409812806477,2.3159180374387045}} wnTs[0]=0.657959 {{3,1}, {2,3}}
 debugShowCubicLineIntersection wtTs[0]=0 {{2,3}, {0,5}, {5,0}, {3,1}} {{2,3}} wnTs[0]=0.6 {{5,0}, {0,5}}
 debugShowLineIntersection wtTs[0]=0.6 {{5,0}, {0,5}} {{2,3}} wnTs[0]=1 {{3,1}, {2,3}}
 debugShowCubicIntersection no self intersect {{2,3}, {0,5}, {5,0}, {3,1}}
 debugShowCubicLineIntersection wtTs[0]=0 {{2,3}, {0,5}, {5,0}, {3,1}} {{2,3}} wtTs[1]=0.4 {{2.0640000000000005,2.871999999999999}} wtTs[2]=1 {{3,1}} wnTs[0]=1 {{3,1}, {2,3}} wnTs[1]=0.936 wnTs[2]=0
 debugShowActiveSpans id=1 (0,5 1,3 3,2 5,0) t=0 (0,5) tEnd=0.540876747 other=2 otherT=1 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,5 1,3 3,2 5,0) t=0.540876747 (2.34204102,2.31591797) tEnd=0.658239823 other=4 otherT=0.657959019 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,5 1,3 3,2 5,0) t=0.658239823 (2.98935652,1.77999616) tEnd=1 other=3 otherT=0.613266786 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=2 (5,0 0,5) t=0 (5,0) tEnd=0.6 other=1 otherT=1 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=2 (5,0 0,5) t=0.6 (2,3) tEnd=1 other=3 otherT=0 otherIndex=0 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=2 (5,0 0,5) t=0.6 (2,3) tEnd=1 other=4 otherT=1 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (2,3 0,5 5,0 3,1) t=0 (2,3) tEnd=0.4 other=2 otherT=0.6 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (2,3 0,5 5,0 3,1) t=0 (2,3) tEnd=0.4 other=4 otherT=1 otherIndex=4 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (2,3 0,5 5,0 3,1) t=0.4 (2.06399989,2.87199998) tEnd=0.613266786 other=4 otherT=0.936 otherIndex=2 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (2,3 0,5 5,0 3,1) t=0.613266786 (2.98935652,1.77999616) tEnd=1 other=1 otherT=0.658239823 otherIndex=2 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=4 (3,1 2,3) t=0 (3,1) tEnd=0.657959019 other=3 otherT=1 otherIndex=4 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=4 (3,1 2,3) t=0.657959019 (2.34204102,2.31591797) tEnd=0.936 other=1 otherT=0.540876747 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=4 (3,1 2,3) t=0.936 (2.06399989,2.87199998) tEnd=1 other=3 otherT=0.4 otherIndex=2 windSum=? windValue=1 oppValue=0
 findTop debugShowSort contourWinding=0 oppContourWinding=0 sign=1
 debugShowSort [0] {{0,5}, {1,3}, {3,2}, {5,0}} tStart=1 tEnd=0.658239823 sign=1 windValue=1 windSum=? 0->-1 (max=-1) done=0 tiny=0 opp=0
 debugShowSort [1] {{5,0}, {0,5}} tStart=0 tEnd=0.6 sign=-1 windValue=1 windSum=? -1->0 (max=-1) done=0 tiny=0 opp=0
 findTop swap serpentine=0
 markWinding id=1 (0,5 1,3 3,2 5,0) t=0.658239823 [2] (2.98935652,1.77999616) tEnd=1 newWindSum=1 newOppSum=0 oppSum=? windSum=? windValue=1
 markWinding id=1 (0,5 1,3 3,2 5,0) t=0.658239823 [2] (2.98935652,1.77999616) tEnd=1 newWindSum=1 newOppSum=0 oppSum=0 windSum=1 windValue=1
 markWinding id=2 (5,0 0,5) t=0 [0] (5,0) tEnd=0.6 newWindSum=1 newOppSum=0 oppSum=? windSum=? windValue=1
 activeOp op=diff miFrom=1 miTo=0 suFrom=0 suTo=0 result=1
 findNextOp debugShowSort contourWinding=0 oppContourWinding=0 sign=-1
 debugShowSort [0] {{0,5}, {1,3}, {3,2}, {5,0}} tStart=0.658239823 tEnd=1 sign=-1 windValue=1 windSum=1 0->1 (max=1) done=0 tiny=0 opp=0
 debugShowSort [1] {{2,3}, {0,5}, {5,0}, {3,1}} tStart=0.613266786 tEnd=1 sign=-1 windValue=1 windSum=? 0->1 (max=1) done=0 tiny=0 opp=1
 debugShowSort [2] {{0,5}, {1,3}, {3,2}, {5,0}} tStart=0.658239823 tEnd=0.540876747 sign=1 windValue=1 windSum=? 1->0 (max=1) done=0 tiny=0 opp=0
 debugShowSort [3] {{2,3}, {0,5}, {5,0}, {3,1}} tStart=0.613266786 tEnd=0.4 sign=1 windValue=1 windSum=? 1->0 (max=1) done=0 tiny=0 opp=1
 findNextOp firstIndex=[0] sign=-1
 activeOp op=diff miFrom=1 miTo=1 suFrom=0 suTo=1 result=1
 markWinding id=3 (2,3 0,5 5,0 3,1) t=0.613266786 [3] (2.98935652,1.77999616) tEnd=1 newWindSum=1 newOppSum=1 oppSum=? windSum=? windValue=1
 markWinding id=4 (3,1 2,3) t=0 [0] (3,1) tEnd=0.657959019 newWindSum=1 newOppSum=1 oppSum=? windSum=? windValue=1
 findNextOp chase.append id=4
 activeOp op=diff miFrom=1 miTo=0 suFrom=1 suTo=1 result=0
 markDoneBinary id=1 (0,5 1,3 3,2 5,0) t=0.540876747 [1] (2.34204102,2.31591797) tEnd=0.658239823 newWindSum=1 newOppSum=1 oppSum=? windSum=? windValue=1
 findNextOp chase.append id=1
 activeOp op=diff miFrom=0 miTo=0 suFrom=1 suTo=0 result=0
 markDoneBinary id=3 (2,3 0,5 5,0 3,1) t=0.4 [2] (2.06399989,2.87199998) tEnd=0.613266786 newWindSum=1 newOppSum=0 oppSum=? windSum=? windValue=1
 findNextOp chase.append id=3
 markDoneBinary id=1 (0,5 1,3 3,2 5,0) t=0.658239823 [2] (2.98935652,1.77999616) tEnd=1 newWindSum=1 newOppSum=0 oppSum=0 windSum=1 windValue=1
 findNextOp from:[1] to:[3] start=3 end=4
 bridgeOp current id=1 from=(5,0) to=(2.98935652,1.77999616)
 path.moveTo(5,0);
 path.cubicTo(4.31647968,0.683520317, 3.63295937,1.25024068, 2.98935652,1.77999616);
 findNextOp simple
 markDoneBinary id=3 (2,3 0,5 5,0 3,1) t=0.613266786 [3] (2.98935652,1.77999616) tEnd=1 newWindSum=1 newOppSum=1 oppSum=1 windSum=1 windValue=1
 bridgeOp current id=3 from=(2.98935652,1.77999616) to=(3,1)
 path.cubicTo(3.49999475,1.123909, 3.77346635,0.613266766, 3,1);
 findNextOp debugShowSort contourWinding=1 oppContourWinding=1 sign=1
 debugShowSort [1] {{3,1}, {2,3}} tStart=0.657959019 tEnd=0 sign=1 windValue=1 windSum=1 1->0 (max=1) done=0 tiny=0 opp=0
 debugShowSort [2] {{0,5}, {1,3}, {3,2}, {5,0}} tStart=0.540876747 tEnd=0 sign=1 windValue=1 windSum=? 1->0 (max=1) done=0 tiny=0 opp=1
 debugShowSort [3] {{3,1}, {2,3}} tStart=0.657959019 tEnd=0.936 sign=-1 windValue=1 windSum=? 0->1 (max=1) done=0 tiny=0 opp=0
 debugShowSort [0] {{0,5}, {1,3}, {3,2}, {5,0}} tStart=0.540876747 tEnd=0.658239823 sign=-1 windValue=1 windSum=1 0->1 (max=1) done=1 tiny=0 opp=1
 findNextOp firstIndex=[1] sign=1
 activeOp op=diff miFrom=1 miTo=0 suFrom=0 suTo=0 result=1
 markWinding id=1 (0,5 1,3 3,2 5,0) t=0 [0] (0,5) tEnd=0.540876747 newWindSum=1 newOppSum=0 oppSum=? windSum=? windValue=1
 markWinding id=2 (5,0 0,5) t=0.6 [1] (2,3) tEnd=0.6 newWindSum=1 newOppSum=0 oppSum=? windSum=? windValue=1
 markWinding id=2 (5,0 0,5) t=0.6 [2] (2,3) tEnd=1 newWindSum=1 newOppSum=0 oppSum=? windSum=? windValue=1
 findNextOp chase.append id=2
 activeOp op=diff miFrom=0 miTo=0 suFrom=0 suTo=1 result=0
 markDoneBinary id=4 (3,1 2,3) t=0.657959019 [1] (2.34204102,2.31591797) tEnd=0.936 newWindSum=1 newOppSum=0 oppSum=? windSum=? windValue=1
 findNextOp chase.append id=4
 activeOp op=diff miFrom=0 miTo=1 suFrom=1 suTo=1 result=0
 markDoneBinary id=4 (3,1 2,3) t=0 [0] (3,1) tEnd=0.657959019 newWindSum=1 newOppSum=1 oppSum=1 windSum=1 windValue=1
 findNextOp from:[4] to:[1] start=1 end=0
 bridgeOp current id=4 from=(3,1) to=(2.34204102,2.31591797)
 findNextOp simple
 markDoneBinary id=1 (0,5 1,3 3,2 5,0) t=0 [0] (0,5) tEnd=0.540876747 newWindSum=1 newOppSum=0 oppSum=0 windSum=1 windValue=1
 bridgeOp current id=1 from=(2.34204102,2.31591797) to=(0,5)
 path.lineTo(2.34204102,2.31591797);
 path.cubicTo(1.37430108,3.12904072, 0.540876746,3.91824651, 0,5);
 findNextOp debugShowSort contourWinding=0 oppContourWinding=0 sign=-1
 debugShowSort [3] {{5,0}, {0,5}} tStart=0.6 tEnd=1 sign=-1 windValue=1 windSum=1 0->1 (max=1) done=0 tiny=0 opp=0
 debugShowSort [0] {{5,0}, {0,5}} tStart=0.6 tEnd=0 sign=1 windValue=1 windSum=1 1->0 (max=1) done=0 tiny=0 opp=0
 debugShowSort [1] {{3,1}, {2,3}} tStart=1 tEnd=0.936 sign=1 windValue=1 windSum=? 0->-1 (max=-1) done=0 tiny=0 opp=1
 debugShowSort [2] {{2,3}, {0,5}, {5,0}, {3,1}} tStart=0 tEnd=0.4 sign=-1 windValue=1 windSum=? -1->0 (max=-1) done=0 tiny=0 opp=1
 findNextOp firstIndex=[3] sign=-1
 activeOp op=diff miFrom=1 miTo=0 suFrom=0 suTo=0 result=1
 activeOp op=diff miFrom=0 miTo=0 suFrom=0 suTo=1 result=0
 markDoneBinary id=4 (3,1 2,3) t=0.936 [2] (2.06399989,2.87199998) tEnd=1 newWindSum=-1 newOppSum=0 oppSum=? windSum=? windValue=1
 findNextOp chase.append id=4
 activeOp op=diff miFrom=0 miTo=0 suFrom=1 suTo=0 result=0
 markDoneBinary id=3 (2,3 0,5 5,0 3,1) t=0 [0] (2,3) tEnd=0 newWindSum=-1 newOppSum=0 oppSum=? windSum=? windValue=1
 markDoneBinary id=3 (2,3 0,5 5,0 3,1) t=0 [1] (2,3) tEnd=0.4 newWindSum=-1 newOppSum=0 oppSum=? windSum=? windValue=1
 findNextOp chase.append id=3
 markDoneBinary id=2 (5,0 0,5) t=0.6 [1] (2,3) tEnd=0.6 newWindSum=1 newOppSum=0 oppSum=0 windSum=1 windValue=1
 markDoneBinary id=2 (5,0 0,5) t=0.6 [2] (2,3) tEnd=1 newWindSum=1 newOppSum=0 oppSum=0 windSum=1 windValue=1
 findNextOp from:[2] to:[2] start=2 end=0
 bridgeOp current id=2 from=(0,5) to=(2,3)
 findNextOp simple
 markDoneBinary id=2 (5,0 0,5) t=0 [0] (5,0) tEnd=0.6 newWindSum=1 newOppSum=0 oppSum=0 windSum=1 windValue=1
 bridgeOp current id=2 from=(2,3) to=(5,0)
 path.lineTo(5,0);
 path.close();
 assemble
 assemble contour    start=(5,0) end=(5,0)
 </div>

 <div id="cubicOp55da">
 $1 = {{x = 2.9893565350663844, y = 1.7799961946192431}, {x = 3.6329592934456443, y = 1.250240688218315}, {x = 4.3164796467228257, y = 0.68352035327717708}, {x = 5, y = 0}}
 </div>

 <div id="cubicOp56da">
 $3 = {{x = 3.2077595567431376, y = 1.2121007383531144}, {x = 3.0712003892698903, y = 0.91360430885366861}, {x = 2.6980028578011237, y = 0.76733238073295829}, {x = 2, y = 1}}
 </div>

 <div id="cubicOp57da">
 computed quadratics given
   {{0,5}, {0,5}, {5,4}, {6,4}},
   {{4,5}, {4,6}, {5,0}, {5,0}},
 computed quadratics set 1
   {{0,5}, {0.0833333333,4.98148148}, {1.33333333,4.74074074}},
   {{1.33333333,4.74074074}, {2.58333333,4.5}, {4,4.25925926}},
   {{4,4.25925926}, {5.41666667,4.01851852}, {6,4}},
 computed quadratics set 2
   {{4,5}, {4.0078125,5.32421875}, {4.15625,4.640625}},
   {{4.15625,4.640625}, {4.3046875,3.95703125}, {4.5,2.875}},
   {{4.5,2.875}, {4.6953125,1.79296875}, {4.84375,0.921875}},
   {{4.84375,0.921875}, {4.9921875,0.05078125}, {5,0}},
 </div>

 <div id="cubicOp58d">
   SimplifyNew_Test [cubicOp58d]
 {{0,5}, {3,4}, {6,5}, {5,3}},
 {{5,3}, {0,5}},
 op difference
 {{5,6}, {3,5}, {5,0}, {4,3}},
 {{4,3}, {5,6}},
 debugShowCubicIntersection no self intersect {{5,6}, {3,5}, {5,0}, {4,3}}
 debugShowCubicLineIntersection wtTs[0]=0 {{5,6}, {3,5}, {5,0}, {4,3}} {{5,6}} wtTs[1]=0.454545455 {{4.0946656649135988,3.2839969947407956}} wtTs[2]=1 {{4,3}} wnTs[0]=1 {{4,3}, {5,6}} wnTs[1]=0.0946656649 wnTs[2]=0
 debugShowCubicIntersection wtTs[0]=0.297296392 {{5,6}, {3,5}, {5,0}, {4,3}} {{4.0929072920341625,4.362808103638363}} wnTs[0]=0.515735 {{0,5}, {3,4}, {6,5}, {5,3}}
 debugShowCubicLineIntersection wtTs[0]=0.442158094 {{5,6}, {3,5}, {5,0}, {4,3}} {{4.0879917456946373,3.3648033017221453}} wnTs[0]=0.182402 {{5,3}, {0,5}}
 debugShowCubicLineIntersection wtTs[0]=0.579011103 {{0,5}, {3,4}, {6,5}, {5,3}} {{4.4346371023199076,4.3039113069597246}} wnTs[0]=0.434637 {{4,3}, {5,6}}
 debugShowLineIntersection wtTs[0]=0.117647059 {{4,3}, {5,6}} {{4.117647058823529,3.3529411764705879}} wnTs[0]=0.176471 {{5,3}, {0,5}}
 debugShowCubicIntersection no self intersect {{0,5}, {3,4}, {6,5}, {5,3}}
 debugShowCubicLineIntersection wtTs[0]=0 {{0,5}, {3,4}, {6,5}, {5,3}} {{0,5}} wtTs[1]=1 {{5,3}} wnTs[0]=1 {{5,3}, {0,5}} wnTs[1]=0
 debugShowActiveSpans id=3 (5,6 3,5 5,0 4,3) t=0 (5,6) tEnd=0.297296392 other=4 otherT=1 otherIndex=4 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (5,6 3,5 5,0 4,3) t=0.297296392 (4.09290743,4.36280823) tEnd=0.442158094 other=1 otherT=0.515734731 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (5,6 3,5 5,0 4,3) t=0.442158094 (4.08799171,3.36480331) tEnd=0.454545455 other=2 otherT=0.182401651 otherIndex=2 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (5,6 3,5 5,0 4,3) t=0.454545455 (4.09466553,3.28399706) tEnd=1 other=4 otherT=0.0946656649 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=4 (4,3 5,6) t=0 (4,3) tEnd=0.0946656649 other=3 otherT=1 otherIndex=4 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=4 (4,3 5,6) t=0.0946656649 (4.09466553,3.28399706) tEnd=0.117647059 other=3 otherT=0.454545455 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=4 (4,3 5,6) t=0.117647059 (4.11764717,3.35294127) tEnd=0.434637102 other=2 otherT=0.176470588 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=4 (4,3 5,6) t=0.434637102 (4.43463707,4.30391121) tEnd=1 other=1 otherT=0.579011103 otherIndex=2 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,5 3,4 6,5 5,3) t=0 (0,5) tEnd=0.515734731 other=2 otherT=1 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,5 3,4 6,5 5,3) t=0.515734731 (4.09290743,4.36280823) tEnd=0.579011103 other=3 otherT=0.297296392 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,5 3,4 6,5 5,3) t=0.579011103 (4.43463707,4.30391121) tEnd=1 other=4 otherT=0.434637102 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=2 (5,3 0,5) t=0 (5,3) tEnd=0.176470588 other=1 otherT=1 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=2 (5,3 0,5) t=0.176470588 (4.11764717,3.35294127) tEnd=0.182401651 other=4 otherT=0.117647059 otherIndex=2 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=2 (5,3 0,5) t=0.182401651 (4.08799171,3.36480331) tEnd=1 other=3 otherT=0.442158094 otherIndex=2 windSum=? windValue=1 oppValue=0
 findTop debugShowSort contourWinding=0 oppContourWinding=0 sign=1
 debugShowSort [0] {{5,6}, {3,5}, {5,0}, {4,3}} tStart=1 tEnd=0.454545455 sign=1 windValue=1 windSum=? 0->-1 (max=-1) done=0 tiny=0 opp=0
 debugShowSort [1] {{4,3}, {5,6}} tStart=0 tEnd=0.0946656649 sign=-1 windValue=1 windSum=? -1->0 (max=-1) done=0 tiny=0 opp=0
 markWinding id=3 (5,6 3,5 5,0 4,3) t=0.454545455 [3] (4.09466553,3.28399706) tEnd=1 newWindSum=-1 newOppSum=0 oppSum=? windSum=? windValue=1
 markWinding id=4 (4,3 5,6) t=0 [0] (4,3) tEnd=0.0946656649 newWindSum=-1 newOppSum=0 oppSum=? windSum=? windValue=1
 markWinding id=3 (5,6 3,5 5,0 4,3) t=0.454545455 [3] (4.09466553,3.28399706) tEnd=1 newWindSum=-1 newOppSum=0 oppSum=0 windSum=-1 windValue=1
 activeOp op=diff miFrom=0 miTo=0 suFrom=1 suTo=0 result=0
 markDoneBinary id=3 (5,6 3,5 5,0 4,3) t=0.454545455 [3] (4.09466553,3.28399706) tEnd=1 newWindSum=-1 newOppSum=0 oppSum=0 windSum=-1 windValue=1
 markDoneBinary id=4 (4,3 5,6) t=0 [0] (4,3) tEnd=0.0946656649 newWindSum=-1 newOppSum=0 oppSum=0 windSum=-1 windValue=1
 findChaseOp debugShowSort contourWinding=-1 oppContourWinding=0 sign=-1
 debugShowSort [0] {{5,6}, {3,5}, {5,0}, {4,3}} tStart=0.454545455 tEnd=1 sign=-1 windValue=1 windSum=-1 -1->0 (max=-1) done=1 tiny=0 opp=0
 debugShowSort [1] {{4,3}, {5,6}} tStart=0.0946656649 tEnd=0 sign=1 windValue=1 windSum=-1 0->-1 (max=-1) done=1 tiny=0 opp=0
 debugShowSort [2] {{5,6}, {3,5}, {5,0}, {4,3}} tStart=0.454545455 tEnd=0.442158094 sign=1 windValue=1 windSum=? -1->-2 (max=-2) done=0 tiny=0 opp=0
 debugShowSort [3] {{4,3}, {5,6}} tStart=0.0946656649 tEnd=0.117647059 sign=-1 windValue=1 windSum=? -2->-1 (max=-2) done=0 tiny=0 opp=0
 findChaseOp debugShowSort contourWinding=-1 oppContourWinding=0 sign=-1
 debugShowSort [0] {{5,6}, {3,5}, {5,0}, {4,3}} tStart=0.454545455 tEnd=1 sign=-1 windValue=1 windSum=-1 -1->0 (max=-1) done=1 tiny=0 opp=0
 debugShowSort [1] {{4,3}, {5,6}} tStart=0.0946656649 tEnd=0 sign=1 windValue=1 windSum=-1 0->-1 (max=-1) done=1 tiny=0 opp=0
 debugShowSort [2] {{5,6}, {3,5}, {5,0}, {4,3}} tStart=0.454545455 tEnd=0.442158094 sign=1 windValue=1 windSum=? -1->-2 (max=-2) done=0 tiny=0 opp=0
 debugShowSort [3] {{4,3}, {5,6}} tStart=0.0946656649 tEnd=0.117647059 sign=-1 windValue=1 windSum=? -2->-1 (max=-2) done=0 tiny=0 opp=0
 markWinding id=3 (5,6 3,5 5,0 4,3) t=0.442158094 [2] (4.08799171,3.36480331) tEnd=0.454545455 newWindSum=-2 newOppSum=0 oppSum=? windSum=? windValue=1
 markWinding id=4 (4,3 5,6) t=0.0946656649 [1] (4.09466553,3.28399706) tEnd=0.117647059 newWindSum=-2 newOppSum=0 oppSum=? windSum=? windValue=1
 debugShowActiveSpans id=3 (5,6 3,5 5,0 4,3) t=0 (5,6) tEnd=0.297296392 other=4 otherT=1 otherIndex=4 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (5,6 3,5 5,0 4,3) t=0.297296392 (4.09290743,4.36280823) tEnd=0.442158094 other=1 otherT=0.515734731 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (5,6 3,5 5,0 4,3) t=0.442158094 (4.08799171,3.36480331) tEnd=0.454545455 other=2 otherT=0.182401651 otherIndex=2 windSum=-2 windValue=1 oppValue=0
 debugShowActiveSpans id=4 (4,3 5,6) t=0.0946656649 (4.09466553,3.28399706) tEnd=0.117647059 other=3 otherT=0.454545455 otherIndex=3 windSum=-2 windValue=1 oppValue=0
 debugShowActiveSpans id=4 (4,3 5,6) t=0.117647059 (4.11764717,3.35294127) tEnd=0.434637102 other=2 otherT=0.176470588 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=4 (4,3 5,6) t=0.434637102 (4.43463707,4.30391121) tEnd=1 other=1 otherT=0.579011103 otherIndex=2 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,5 3,4 6,5 5,3) t=0 (0,5) tEnd=0.515734731 other=2 otherT=1 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,5 3,4 6,5 5,3) t=0.515734731 (4.09290743,4.36280823) tEnd=0.579011103 other=3 otherT=0.297296392 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,5 3,4 6,5 5,3) t=0.579011103 (4.43463707,4.30391121) tEnd=1 other=4 otherT=0.434637102 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=2 (5,3 0,5) t=0 (5,3) tEnd=0.176470588 other=1 otherT=1 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=2 (5,3 0,5) t=0.176470588 (4.11764717,3.35294127) tEnd=0.182401651 other=4 otherT=0.117647059 otherIndex=2 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=2 (5,3 0,5) t=0.182401651 (4.08799171,3.36480331) tEnd=1 other=3 otherT=0.442158094 otherIndex=2 windSum=? windValue=1 oppValue=0
 activeOp op=diff miFrom=0 miTo=0 suFrom=1 suTo=1 result=0
 markDoneBinary id=3 (5,6 3,5 5,0 4,3) t=0.442158094 [2] (4.08799171,3.36480331) tEnd=0.454545455 newWindSum=-2 newOppSum=0 oppSum=0 windSum=-2 windValue=1
 findChaseOp debugShowSort contourWinding=? oppContourWinding=? sign=1
 debugShowSort [0] {{5,3}, {0,5}} tStart=0.182401651 tEnd=0.176470588 sign=1 windValue=1 windSum=? ?->? (max=?) done=0 tiny=0 opp=0
 debugShowSort [1] {{5,6}, {3,5}, {5,0}, {4,3}} tStart=0.442158094 tEnd=0.454545455 sign=-1 windValue=1 windSum=-2 ?->? (max=?) done=1 tiny=0 opp=1
 debugShowSort [2] {{5,3}, {0,5}} tStart=0.182401651 tEnd=1 sign=-1 windValue=1 windSum=? ?->? (max=?) done=0 tiny=0 opp=0
 debugShowSort [3] {{5,6}, {3,5}, {5,0}, {4,3}} tStart=0.442158094 tEnd=0.297296392 sign=1 windValue=1 windSum=? ?->? (max=?) done=0 tiny=0 opp=1
 findChaseOp debugShowSort contourWinding=-2 oppContourWinding=0 sign=-1
 debugShowSort [1] {{5,6}, {3,5}, {5,0}, {4,3}} tStart=0.442158094 tEnd=0.454545455 sign=-1 windValue=1 windSum=-2 -2->-1 (max=-2) done=1 tiny=0 opp=0
 debugShowSort [2] {{5,3}, {0,5}} tStart=0.182401651 tEnd=1 sign=-1 windValue=1 windSum=? 0->1 (max=1) done=0 tiny=0 opp=1
 debugShowSort [3] {{5,6}, {3,5}, {5,0}, {4,3}} tStart=0.442158094 tEnd=0.297296392 sign=1 windValue=1 windSum=? -1->-2 (max=-2) done=0 tiny=0 opp=0
 debugShowSort [0] {{5,3}, {0,5}} tStart=0.182401651 tEnd=0.176470588 sign=1 windValue=1 windSum=? 1->0 (max=1) done=0 tiny=0 opp=1
 markWinding id=2 (5,3 0,5) t=0.182401651 [2] (4.08799171,3.36480331) tEnd=1 newWindSum=1 newOppSum=-1 oppSum=? windSum=? windValue=1
 markWinding id=1 (0,5 3,4 6,5 5,3) t=0 [0] (0,5) tEnd=0.515734731 newWindSum=1 newOppSum=-1 oppSum=? windSum=? windValue=1
 markWinding id=3 (5,6 3,5 5,0 4,3) t=0.297296392 [1] (4.09290743,4.36280823) tEnd=0.442158094 newWindSum=-2 newOppSum=1 oppSum=? windSum=? windValue=1
 markWinding id=2 (5,3 0,5) t=0.176470588 [1] (4.11764717,3.35294127) tEnd=0.182401651 newWindSum=1 newOppSum=-2 oppSum=? windSum=? windValue=1
 debugShowActiveSpans id=3 (5,6 3,5 5,0 4,3) t=0 (5,6) tEnd=0.297296392 other=4 otherT=1 otherIndex=4 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (5,6 3,5 5,0 4,3) t=0.297296392 (4.09290743,4.36280823) tEnd=0.442158094 other=1 otherT=0.515734731 otherIndex=1 windSum=-2 windValue=1 oppValue=0
 debugShowActiveSpans id=4 (4,3 5,6) t=0.0946656649 (4.09466553,3.28399706) tEnd=0.117647059 other=3 otherT=0.454545455 otherIndex=3 windSum=-2 windValue=1 oppValue=0
 debugShowActiveSpans id=4 (4,3 5,6) t=0.117647059 (4.11764717,3.35294127) tEnd=0.434637102 other=2 otherT=0.176470588 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=4 (4,3 5,6) t=0.434637102 (4.43463707,4.30391121) tEnd=1 other=1 otherT=0.579011103 otherIndex=2 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,5 3,4 6,5 5,3) t=0 (0,5) tEnd=0.515734731 other=2 otherT=1 otherIndex=3 windSum=1 windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,5 3,4 6,5 5,3) t=0.515734731 (4.09290743,4.36280823) tEnd=0.579011103 other=3 otherT=0.297296392 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,5 3,4 6,5 5,3) t=0.579011103 (4.43463707,4.30391121) tEnd=1 other=4 otherT=0.434637102 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=2 (5,3 0,5) t=0 (5,3) tEnd=0.176470588 other=1 otherT=1 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=2 (5,3 0,5) t=0.176470588 (4.11764717,3.35294127) tEnd=0.182401651 other=4 otherT=0.117647059 otherIndex=2 windSum=1 windValue=1 oppValue=0
 debugShowActiveSpans id=2 (5,3 0,5) t=0.182401651 (4.08799171,3.36480331) tEnd=1 other=3 otherT=0.442158094 otherIndex=2 windSum=1 windValue=1 oppValue=0
 activeOp op=diff miFrom=0 miTo=1 suFrom=1 suTo=1 result=0
 markDoneBinary id=2 (5,3 0,5) t=0.182401651 [2] (4.08799171,3.36480331) tEnd=1 newWindSum=1 newOppSum=-1 oppSum=-1 windSum=1 windValue=1
 markDoneBinary id=1 (0,5 3,4 6,5 5,3) t=0 [0] (0,5) tEnd=0.515734731 newWindSum=1 newOppSum=-1 oppSum=-1 windSum=1 windValue=1
 debugShowActiveSpans id=3 (5,6 3,5 5,0 4,3) t=0 (5,6) tEnd=0.297296392 other=4 otherT=1 otherIndex=4 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (5,6 3,5 5,0 4,3) t=0.297296392 (4.09290743,4.36280823) tEnd=0.442158094 other=1 otherT=0.515734731 otherIndex=1 windSum=-2 windValue=1 oppValue=0
 debugShowActiveSpans id=4 (4,3 5,6) t=0.0946656649 (4.09466553,3.28399706) tEnd=0.117647059 other=3 otherT=0.454545455 otherIndex=3 windSum=-2 windValue=1 oppValue=0
 debugShowActiveSpans id=4 (4,3 5,6) t=0.117647059 (4.11764717,3.35294127) tEnd=0.434637102 other=2 otherT=0.176470588 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=4 (4,3 5,6) t=0.434637102 (4.43463707,4.30391121) tEnd=1 other=1 otherT=0.579011103 otherIndex=2 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,5 3,4 6,5 5,3) t=0.515734731 (4.09290743,4.36280823) tEnd=0.579011103 other=3 otherT=0.297296392 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,5 3,4 6,5 5,3) t=0.579011103 (4.43463707,4.30391121) tEnd=1 other=4 otherT=0.434637102 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=2 (5,3 0,5) t=0 (5,3) tEnd=0.176470588 other=1 otherT=1 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=2 (5,3 0,5) t=0.176470588 (4.11764717,3.35294127) tEnd=0.182401651 other=4 otherT=0.117647059 otherIndex=2 windSum=1 windValue=1 oppValue=0
 activeOp op=diff miFrom=1 miTo=1 suFrom=1 suTo=1 result=0
 markDoneBinary id=3 (5,6 3,5 5,0 4,3) t=0.297296392 [1] (4.09290743,4.36280823) tEnd=0.442158094 newWindSum=-2 newOppSum=1 oppSum=1 windSum=-2 windValue=1
 debugShowActiveSpans id=3 (5,6 3,5 5,0 4,3) t=0 (5,6) tEnd=0.297296392 other=4 otherT=1 otherIndex=4 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=4 (4,3 5,6) t=0.0946656649 (4.09466553,3.28399706) tEnd=0.117647059 other=3 otherT=0.454545455 otherIndex=3 windSum=-2 windValue=1 oppValue=0
 debugShowActiveSpans id=4 (4,3 5,6) t=0.117647059 (4.11764717,3.35294127) tEnd=0.434637102 other=2 otherT=0.176470588 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=4 (4,3 5,6) t=0.434637102 (4.43463707,4.30391121) tEnd=1 other=1 otherT=0.579011103 otherIndex=2 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,5 3,4 6,5 5,3) t=0.515734731 (4.09290743,4.36280823) tEnd=0.579011103 other=3 otherT=0.297296392 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,5 3,4 6,5 5,3) t=0.579011103 (4.43463707,4.30391121) tEnd=1 other=4 otherT=0.434637102 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=2 (5,3 0,5) t=0 (5,3) tEnd=0.176470588 other=1 otherT=1 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=2 (5,3 0,5) t=0.176470588 (4.11764717,3.35294127) tEnd=0.182401651 other=4 otherT=0.117647059 otherIndex=2 windSum=1 windValue=1 oppValue=0
 activeOp op=diff miFrom=1 miTo=0 suFrom=1 suTo=1 result=0
 markDoneBinary id=2 (5,3 0,5) t=0.176470588 [1] (4.11764717,3.35294127) tEnd=0.182401651 newWindSum=1 newOppSum=-2 oppSum=-2 windSum=1 windValue=1
 debugShowActiveSpans id=3 (5,6 3,5 5,0 4,3) t=0 (5,6) tEnd=0.297296392 other=4 otherT=1 otherIndex=4 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=4 (4,3 5,6) t=0.0946656649 (4.09466553,3.28399706) tEnd=0.117647059 other=3 otherT=0.454545455 otherIndex=3 windSum=-2 windValue=1 oppValue=0
 debugShowActiveSpans id=4 (4,3 5,6) t=0.117647059 (4.11764717,3.35294127) tEnd=0.434637102 other=2 otherT=0.176470588 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=4 (4,3 5,6) t=0.434637102 (4.43463707,4.30391121) tEnd=1 other=1 otherT=0.579011103 otherIndex=2 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,5 3,4 6,5 5,3) t=0.515734731 (4.09290743,4.36280823) tEnd=0.579011103 other=3 otherT=0.297296392 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,5 3,4 6,5 5,3) t=0.579011103 (4.43463707,4.30391121) tEnd=1 other=4 otherT=0.434637102 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=2 (5,3 0,5) t=0 (5,3) tEnd=0.176470588 other=1 otherT=1 otherIndex=3 windSum=? windValue=1 oppValue=0
 activeOp op=diff miFrom=0 miTo=0 suFrom=1 suTo=1 result=0
 markDoneBinary id=4 (4,3 5,6) t=0.0946656649 [1] (4.09466553,3.28399706) tEnd=0.117647059 newWindSum=-2 newOppSum=0 oppSum=0 windSum=-2 windValue=1
 findChaseOp debugShowSort contourWinding=? oppContourWinding=? sign=-1
 debugShowSort [0] {{0,5}, {3,4}, {6,5}, {5,3}} tStart=0.515734731 tEnd=0.579011103 sign=-1 windValue=1 windSum=? ?->? (max=?) done=0 tiny=0 opp=0
 debugShowSort [1] {{5,6}, {3,5}, {5,0}, {4,3}} tStart=0.297296392 tEnd=0.442158094 sign=-1 windValue=1 windSum=-2 ?->? (max=?) done=1 tiny=0 opp=1
 debugShowSort [2] {{0,5}, {3,4}, {6,5}, {5,3}} tStart=0.515734731 tEnd=0 sign=1 windValue=1 windSum=1 ?->? (max=?) done=1 tiny=0 opp=0
 debugShowSort [3] {{5,6}, {3,5}, {5,0}, {4,3}} tStart=0.297296392 tEnd=0 sign=1 windValue=1 windSum=? ?->? (max=?) done=0 tiny=0 opp=1
 findChaseOp debugShowSort contourWinding=-2 oppContourWinding=1 sign=-1
 debugShowSort [1] {{5,6}, {3,5}, {5,0}, {4,3}} tStart=0.297296392 tEnd=0.442158094 sign=-1 windValue=1 windSum=-2 -2->-1 (max=-2) done=1 tiny=0 opp=0
 debugShowSort [2] {{0,5}, {3,4}, {6,5}, {5,3}} tStart=0.515734731 tEnd=0 sign=1 windValue=1 windSum=1 1->0 (max=1) done=1 tiny=0 opp=1
 debugShowSort [3] {{5,6}, {3,5}, {5,0}, {4,3}} tStart=0.297296392 tEnd=0 sign=1 windValue=1 windSum=? -1->-2 (max=-2) done=0 tiny=0 opp=0
 debugShowSort [0] {{0,5}, {3,4}, {6,5}, {5,3}} tStart=0.515734731 tEnd=0.579011103 sign=-1 windValue=1 windSum=? 0->1 (max=1) done=0 tiny=0 opp=1
 markWinding id=3 (5,6 3,5 5,0 4,3) t=0 [0] (5,6) tEnd=0.297296392 newWindSum=-2 newOppSum=0 oppSum=? windSum=? windValue=1
 markWinding id=4 (4,3 5,6) t=0.434637102 [3] (4.43463707,4.30391121) tEnd=1 newWindSum=-2 newOppSum=0 oppSum=? windSum=? windValue=1
 markWinding id=1 (0,5 3,4 6,5 5,3) t=0.515734731 [1] (4.09290743,4.36280823) tEnd=0.579011103 newWindSum=1 newOppSum=-2 oppSum=? windSum=? windValue=1
 debugShowActiveSpans id=3 (5,6 3,5 5,0 4,3) t=0 (5,6) tEnd=0.297296392 other=4 otherT=1 otherIndex=4 windSum=-2 windValue=1 oppValue=0
 debugShowActiveSpans id=4 (4,3 5,6) t=0.117647059 (4.11764717,3.35294127) tEnd=0.434637102 other=2 otherT=0.176470588 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=4 (4,3 5,6) t=0.434637102 (4.43463707,4.30391121) tEnd=1 other=1 otherT=0.579011103 otherIndex=2 windSum=-2 windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,5 3,4 6,5 5,3) t=0.515734731 (4.09290743,4.36280823) tEnd=0.579011103 other=3 otherT=0.297296392 otherIndex=1 windSum=1 windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,5 3,4 6,5 5,3) t=0.579011103 (4.43463707,4.30391121) tEnd=1 other=4 otherT=0.434637102 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=2 (5,3 0,5) t=0 (5,3) tEnd=0.176470588 other=1 otherT=1 otherIndex=3 windSum=? windValue=1 oppValue=0
 activeOp op=diff miFrom=0 miTo=0 suFrom=1 suTo=1 result=0
 markDoneBinary id=3 (5,6 3,5 5,0 4,3) t=0 [0] (5,6) tEnd=0.297296392 newWindSum=-2 newOppSum=0 oppSum=0 windSum=-2 windValue=1
 markDoneBinary id=4 (4,3 5,6) t=0.434637102 [3] (4.43463707,4.30391121) tEnd=1 newWindSum=-2 newOppSum=0 oppSum=0 windSum=-2 windValue=1
 debugShowActiveSpans id=4 (4,3 5,6) t=0.117647059 (4.11764717,3.35294127) tEnd=0.434637102 other=2 otherT=0.176470588 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,5 3,4 6,5 5,3) t=0.515734731 (4.09290743,4.36280823) tEnd=0.579011103 other=3 otherT=0.297296392 otherIndex=1 windSum=1 windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,5 3,4 6,5 5,3) t=0.579011103 (4.43463707,4.30391121) tEnd=1 other=4 otherT=0.434637102 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=2 (5,3 0,5) t=0 (5,3) tEnd=0.176470588 other=1 otherT=1 otherIndex=3 windSum=? windValue=1 oppValue=0
 activeOp op=diff miFrom=1 miTo=0 suFrom=1 suTo=1 result=0
 markDoneBinary id=1 (0,5 3,4 6,5 5,3) t=0.515734731 [1] (4.09290743,4.36280823) tEnd=0.579011103 newWindSum=1 newOppSum=-2 oppSum=-2 windSum=1 windValue=1
 findChaseOp debugShowSort contourWinding=? oppContourWinding=? sign=1
 debugShowSort [0] {{5,3}, {0,5}} tStart=0.176470588 tEnd=0 sign=1 windValue=1 windSum=? ?->? (max=?) done=0 tiny=0 opp=0
 debugShowSort [1] {{4,3}, {5,6}} tStart=0.117647059 tEnd=0.0946656649 sign=1 windValue=1 windSum=-2 ?->? (max=?) done=1 tiny=0 opp=1
 debugShowSort [2] {{5,3}, {0,5}} tStart=0.176470588 tEnd=0.182401651 sign=-1 windValue=1 windSum=1 ?->? (max=?) done=1 tiny=0 opp=0
 debugShowSort [3] {{4,3}, {5,6}} tStart=0.117647059 tEnd=0.434637102 sign=-1 windValue=1 windSum=? ?->? (max=?) done=0 tiny=0 opp=1
 findChaseOp debugShowSort contourWinding=-1 oppContourWinding=0 sign=1
 debugShowSort [1] {{4,3}, {5,6}} tStart=0.117647059 tEnd=0.0946656649 sign=1 windValue=1 windSum=-2 -1->-2 (max=-2) done=1 tiny=0 opp=0
 debugShowSort [2] {{5,3}, {0,5}} tStart=0.176470588 tEnd=0.182401651 sign=-1 windValue=1 windSum=1 0->1 (max=1) done=1 tiny=0 opp=1
 debugShowSort [3] {{4,3}, {5,6}} tStart=0.117647059 tEnd=0.434637102 sign=-1 windValue=1 windSum=? -2->-1 (max=-2) done=0 tiny=0 opp=0
 debugShowSort [0] {{5,3}, {0,5}} tStart=0.176470588 tEnd=0 sign=1 windValue=1 windSum=? 1->0 (max=1) done=0 tiny=0 opp=1
 markWinding id=4 (4,3 5,6) t=0.117647059 [2] (4.11764717,3.35294127) tEnd=0.434637102 newWindSum=-2 newOppSum=1 oppSum=? windSum=? windValue=1
 markWinding id=2 (5,3 0,5) t=0 [0] (5,3) tEnd=0.176470588 newWindSum=1 newOppSum=-1 oppSum=? windSum=? windValue=1
 markWinding id=1 (0,5 3,4 6,5 5,3) t=0.579011103 [2] (4.43463707,4.30391121) tEnd=1 newWindSum=1 newOppSum=-1 oppSum=? windSum=? windValue=1
 debugShowActiveSpans id=4 (4,3 5,6) t=0.117647059 (4.11764717,3.35294127) tEnd=0.434637102 other=2 otherT=0.176470588 otherIndex=1 windSum=-2 windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,5 3,4 6,5 5,3) t=0.579011103 (4.43463707,4.30391121) tEnd=1 other=4 otherT=0.434637102 otherIndex=3 windSum=1 windValue=1 oppValue=0
 debugShowActiveSpans id=2 (5,3 0,5) t=0 (5,3) tEnd=0.176470588 other=1 otherT=1 otherIndex=3 windSum=1 windValue=1 oppValue=0
 activeOp op=diff miFrom=1 miTo=1 suFrom=1 suTo=1 result=0
 markDoneBinary id=4 (4,3 5,6) t=0.117647059 [2] (4.11764717,3.35294127) tEnd=0.434637102 newWindSum=-2 newOppSum=1 oppSum=1 windSum=-2 windValue=1
 debugShowActiveSpans id=1 (0,5 3,4 6,5 5,3) t=0.579011103 (4.43463707,4.30391121) tEnd=1 other=4 otherT=0.434637102 otherIndex=3 windSum=1 windValue=1 oppValue=0
 debugShowActiveSpans id=2 (5,3 0,5) t=0 (5,3) tEnd=0.176470588 other=1 otherT=1 otherIndex=3 windSum=1 windValue=1 oppValue=0
 activeOp op=diff miFrom=0 miTo=1 suFrom=1 suTo=1 result=0
 markDoneBinary id=1 (0,5 3,4 6,5 5,3) t=0.579011103 [2] (4.43463707,4.30391121) tEnd=1 newWindSum=1 newOppSum=-1 oppSum=-1 windSum=1 windValue=1
 markDoneBinary id=2 (5,3 0,5) t=0 [0] (5,3) tEnd=0.176470588 newWindSum=1 newOppSum=-1 oppSum=-1 windSum=1 windValue=1
 assemble
 </div>

 <div id="cubicOp58da">
 $1 = {{fX = 4.09466553, fY = 3.28399706}, {fX = 4.19834709, fY = 2.10743785}, {fX = 4.5454545, fY = 1.36363637}, {fX = 4, fY = 3}}
 </div>

 <div id="cubicOp61d">
   SimplifyNew_Test [cubicOp61d]
 {{1,2}, {0,5}, {3,2}, {6,1}},
 {{6,1}, {1,2}},
 op difference
 {{2,3}, {1,6}, {2,1}, {5,0}},
 {{5,0}, {2,3}},
 debugShowCubicIntersection wtTs[0]=0 {{2,3}, {1,6}, {2,1}, {5,0}} {{2,3}} wtTs[1]=0.5
 debugShowCubicLineIntersection wtTs[0]=0 {{2,3}, {1,6}, {2,1}, {5,0}} {{2,3}} wtTs[1]=0.5 {{2,3}} wtTs[2]=1 {{5,0}} wnTs[0]=1 {{5,0}, {2,3}} wnTs[1]=1 wnTs[2]=0
 debugShowCubicIntersection wtTs[0]=0 {{2,3}, {1,6}, {2,1}, {5,0}} {{2,3}} wtTs[1]=0.5 {{2.0000000000728706,2.9999999998542584}} wnTs[0]=0.5 {{1,2}, {0,5}, {3,2}, {6,1}} wnTs[1]=0.500000029
 debugShowCubicLineIntersection wtTs[0]=0.704088595 {{2,3}, {1,6}, {2,1}, {5,0}} {{2.8621787139852466,1.6275642572029505}} wnTs[0]=0.627564 {{6,1}, {1,2}}
 debugShowCubicLineIntersection wtTs[0]=0.5 {{1,2}, {0,5}, {3,2}, {6,1}} {{2,3}} wnTs[0]=1 {{5,0}, {2,3}}
 debugShowLineIntersection wtTs[0]=0.5 {{5,0}, {2,3}} {{3.5,1.5}} wnTs[0]=0.5 {{6,1}, {1,2}}
 debugShowCubicIntersection no self intersect {{1,2}, {0,5}, {3,2}, {6,1}}
 debugShowCubicLineIntersection wtTs[0]=0 {{1,2}, {0,5}, {3,2}, {6,1}} {{1,2}} wtTs[1]=1 {{6,1}} wnTs[0]=1 {{6,1}, {1,2}} wnTs[1]=0
 debugShowActiveSpans id=3 (2,3 1,6 2,1 5,0) t=0 (2,3) tEnd=0.5 other=3 otherT=0.5 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (2,3 1,6 2,1 5,0) t=0 (2,3) tEnd=0.5 other=4 otherT=1 otherIndex=2 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (2,3 1,6 2,1 5,0) t=0 (2,3) tEnd=0.5 other=1 otherT=0.5 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (2,3 1,6 2,1 5,0) t=0.5 (2,3) tEnd=0.704088595 other=1 otherT=0.500000029 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (2,3 1,6 2,1 5,0) t=0.704088595 (2.8621788,1.62756431) tEnd=1 other=2 otherT=0.627564257 otherIndex=2 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=4 (5,0 2,3) t=0 (5,0) tEnd=0.5 other=3 otherT=1 otherIndex=7 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=4 (5,0 2,3) t=0.5 (3.5,1.5) tEnd=1 other=2 otherT=0.5 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (1,2 0,5 3,2 6,1) t=0 (1,2) tEnd=0.5 other=2 otherT=1 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (1,2 0,5 3,2 6,1) t=0.500000029 (2,3) tEnd=1 other=3 otherT=0.5 otherIndex=5 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=2 (6,1 1,2) t=0 (6,1) tEnd=0.5 other=1 otherT=1 otherIndex=4 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=2 (6,1 1,2) t=0.5 (3.5,1.5) tEnd=0.627564257 other=4 otherT=0.5 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=2 (6,1 1,2) t=0.627564257 (2.8621788,1.62756431) tEnd=1 other=3 otherT=0.704088595 otherIndex=6 windSum=? windValue=1 oppValue=0
 (gdb) continue
 findTop debugShowSort contourWinding=0 oppContourWinding=0 sign=1
 debugShowSort [0] {{2,3}, {1,6}, {2,1}, {5,0}} tStart=1 tEnd=0.704088595 sign=1 windValue=1 windSum=? 0->-1 (max=-1) done=0 tiny=0 opp=0
 debugShowSort [1] {{5,0}, {2,3}} tStart=0 tEnd=0.5 sign=-1 windValue=1 windSum=? -1->0 (max=-1) done=0 tiny=0 opp=0
 markWinding id=3 (2,3 1,6 2,1 5,0) t=0.704088595 [6] (2.8621788,1.62756431) tEnd=1 newWindSum=-1 newOppSum=0 oppSum=? windSum=? windValue=1
 markWinding id=4 (5,0 2,3) t=0 [0] (5,0) tEnd=0.5 newWindSum=-1 newOppSum=0 oppSum=? windSum=? windValue=1
 markWinding id=3 (2,3 1,6 2,1 5,0) t=0.704088595 [6] (2.8621788,1.62756431) tEnd=1 newWindSum=-1 newOppSum=0 oppSum=0 windSum=-1 windValue=1
 activeOp op=diff miFrom=0 miTo=0 suFrom=1 suTo=0 result=0
 markDoneBinary id=3 (2,3 1,6 2,1 5,0) t=0.704088595 [6] (2.8621788,1.62756431) tEnd=1 newWindSum=-1 newOppSum=0 oppSum=0 windSum=-1 windValue=1
 markDoneBinary id=4 (5,0 2,3) t=0 [0] (5,0) tEnd=0.5 newWindSum=-1 newOppSum=0 oppSum=0 windSum=-1 windValue=1
 findChaseOp debugShowSort contourWinding=? oppContourWinding=? sign=1
 debugShowSort [0] {{6,1}, {1,2}} tStart=0.5 tEnd=0 sign=1 windValue=1 windSum=? ?->? (max=?) done=0 tiny=0 opp=0
 debugShowSort [1] {{5,0}, {2,3}} tStart=0.5 tEnd=0 sign=1 windValue=1 windSum=-1 ?->? (max=?) done=1 tiny=0 opp=1
 debugShowSort [2] {{6,1}, {1,2}} tStart=0.5 tEnd=0.627564257 sign=-1 windValue=1 windSum=? ?->? (max=?) done=0 tiny=0 opp=0
 debugShowSort [3] {{5,0}, {2,3}} tStart=0.5 tEnd=1 sign=-1 windValue=1 windSum=? ?->? (max=?) done=0 tiny=0 opp=1
 findChaseOp debugShowSort contourWinding=0 oppContourWinding=0 sign=1
 debugShowSort [1] {{5,0}, {2,3}} tStart=0.5 tEnd=0 sign=1 windValue=1 windSum=-1 0->-1 (max=-1) done=1 tiny=0 opp=0
 debugShowSort [2] {{6,1}, {1,2}} tStart=0.5 tEnd=0.627564257 sign=-1 windValue=1 windSum=? 0->1 (max=1) done=0 tiny=0 opp=1
 debugShowSort [3] {{5,0}, {2,3}} tStart=0.5 tEnd=1 sign=-1 windValue=1 windSum=? -1->0 (max=-1) done=0 tiny=0 opp=0
 debugShowSort [0] {{6,1}, {1,2}} tStart=0.5 tEnd=0 sign=1 windValue=1 windSum=? 1->0 (max=1) done=0 tiny=0 opp=1
 markWinding id=2 (6,1 1,2) t=0.5 [1] (3.5,1.5) tEnd=0.627564257 newWindSum=1 newOppSum=-1 oppSum=? windSum=? windValue=1
 markWinding id=4 (5,0 2,3) t=0.5 [1] (3.5,1.5) tEnd=1 newWindSum=-1 newOppSum=1 oppSum=? windSum=? windValue=1
 markWinding id=2 (6,1 1,2) t=0 [0] (6,1) tEnd=0.5 newWindSum=1 newOppSum=0 oppSum=? windSum=? windValue=1
 markWinding id=1 (1,2 0,5 3,2 6,1) t=0.500000029 [3] (2,3) tEnd=1 newWindSum=1 newOppSum=0 oppSum=? windSum=? windValue=1
 debugShowActiveSpans id=3 (2,3 1,6 2,1 5,0) t=0 (2,3) tEnd=0.5 other=3 otherT=0.5 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (2,3 1,6 2,1 5,0) t=0 (2,3) tEnd=0.5 other=4 otherT=1 otherIndex=2 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (2,3 1,6 2,1 5,0) t=0 (2,3) tEnd=0.5 other=1 otherT=0.5 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (2,3 1,6 2,1 5,0) t=0.5 (2,3) tEnd=0.704088595 other=1 otherT=0.500000029 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=4 (5,0 2,3) t=0.5 (3.5,1.5) tEnd=1 other=2 otherT=0.5 otherIndex=1 windSum=-1 windValue=1 oppValue=0
 debugShowActiveSpans id=1 (1,2 0,5 3,2 6,1) t=0 (1,2) tEnd=0.5 other=2 otherT=1 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (1,2 0,5 3,2 6,1) t=0.500000029 (2,3) tEnd=1 other=3 otherT=0.5 otherIndex=5 windSum=1 windValue=1 oppValue=0
 debugShowActiveSpans id=2 (6,1 1,2) t=0 (6,1) tEnd=0.5 other=1 otherT=1 otherIndex=4 windSum=1 windValue=1 oppValue=0
 debugShowActiveSpans id=2 (6,1 1,2) t=0.5 (3.5,1.5) tEnd=0.627564257 other=4 otherT=0.5 otherIndex=1 windSum=1 windValue=1 oppValue=0
 debugShowActiveSpans id=2 (6,1 1,2) t=0.627564257 (2.8621788,1.62756431) tEnd=1 other=3 otherT=0.704088595 otherIndex=6 windSum=? windValue=1 oppValue=0
 activeOp op=diff miFrom=0 miTo=1 suFrom=1 suTo=1 result=0
 markDoneBinary id=2 (6,1 1,2) t=0.5 [1] (3.5,1.5) tEnd=0.627564257 newWindSum=1 newOppSum=-1 oppSum=-1 windSum=1 windValue=1
 findChaseOp debugShowSort contourWinding=1 oppContourWinding=-1 sign=1
 debugShowSort [0] {{6,1}, {1,2}} tStart=0.627564257 tEnd=0.5 sign=1 windValue=1 windSum=1 1->0 (max=1) done=1 tiny=0 opp=0
 debugShowSort [1] {{2,3}, {1,6}, {2,1}, {5,0}} tStart=0.704088595 tEnd=1 sign=-1 windValue=1 windSum=-1 -1->0 (max=-1) done=1 tiny=0 opp=1
 debugShowSort [2] {{6,1}, {1,2}} tStart=0.627564257 tEnd=1 sign=-1 windValue=1 windSum=? 0->1 (max=1) done=0 tiny=0 opp=0
 debugShowSort [3] {{2,3}, {1,6}, {2,1}, {5,0}} tStart=0.704088595 tEnd=0.5 sign=1 windValue=1 windSum=? 0->-1 (max=-1) done=0 tiny=0 opp=1
 findChaseOp debugShowSort contourWinding=1 oppContourWinding=-1 sign=1
 debugShowSort [0] {{6,1}, {1,2}} tStart=0.627564257 tEnd=0.5 sign=1 windValue=1 windSum=1 1->0 (max=1) done=1 tiny=0 opp=0
 debugShowSort [1] {{2,3}, {1,6}, {2,1}, {5,0}} tStart=0.704088595 tEnd=1 sign=-1 windValue=1 windSum=-1 -1->0 (max=-1) done=1 tiny=0 opp=1
 debugShowSort [2] {{6,1}, {1,2}} tStart=0.627564257 tEnd=1 sign=-1 windValue=1 windSum=? 0->1 (max=1) done=0 tiny=0 opp=0
 debugShowSort [3] {{2,3}, {1,6}, {2,1}, {5,0}} tStart=0.704088595 tEnd=0.5 sign=1 windValue=1 windSum=? 0->-1 (max=-1) done=0 tiny=0 opp=1
 markWinding id=2 (6,1 1,2) t=0.627564257 [2] (2.8621788,1.62756431) tEnd=1 newWindSum=1 newOppSum=0 oppSum=? windSum=? windValue=1
 markWinding id=1 (1,2 0,5 3,2 6,1) t=0 [0] (1,2) tEnd=0.5 newWindSum=1 newOppSum=0 oppSum=? windSum=? windValue=1
 markWinding id=3 (2,3 1,6 2,1 5,0) t=0.5 [5] (2,3) tEnd=0.704088595 newWindSum=-1 newOppSum=1 oppSum=? windSum=? windValue=1
 debugShowActiveSpans id=3 (2,3 1,6 2,1 5,0) t=0 (2,3) tEnd=0.5 other=3 otherT=0.5 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (2,3 1,6 2,1 5,0) t=0 (2,3) tEnd=0.5 other=4 otherT=1 otherIndex=2 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (2,3 1,6 2,1 5,0) t=0 (2,3) tEnd=0.5 other=1 otherT=0.5 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (2,3 1,6 2,1 5,0) t=0.5 (2,3) tEnd=0.704088595 other=1 otherT=0.500000029 otherIndex=3 windSum=-1 windValue=1 oppValue=0
 debugShowActiveSpans id=4 (5,0 2,3) t=0.5 (3.5,1.5) tEnd=1 other=2 otherT=0.5 otherIndex=1 windSum=-1 windValue=1 oppValue=0
 debugShowActiveSpans id=1 (1,2 0,5 3,2 6,1) t=0 (1,2) tEnd=0.5 other=2 otherT=1 otherIndex=3 windSum=1 windValue=1 oppValue=0
 debugShowActiveSpans id=1 (1,2 0,5 3,2 6,1) t=0.500000029 (2,3) tEnd=1 other=3 otherT=0.5 otherIndex=5 windSum=1 windValue=1 oppValue=0
 debugShowActiveSpans id=2 (6,1 1,2) t=0 (6,1) tEnd=0.5 other=1 otherT=1 otherIndex=4 windSum=1 windValue=1 oppValue=0
 debugShowActiveSpans id=2 (6,1 1,2) t=0.627564257 (2.8621788,1.62756431) tEnd=1 other=3 otherT=0.704088595 otherIndex=6 windSum=1 windValue=1 oppValue=0
 activeOp op=diff miFrom=0 miTo=1 suFrom=0 suTo=0 result=1
 findNextOp simple
 markDoneBinary id=2 (6,1 1,2) t=0.627564257 [2] (2.8621788,1.62756431) tEnd=1 newWindSum=1 newOppSum=0 oppSum=0 windSum=1 windValue=1
 bridgeOp current id=2 from=(2.8621788,1.62756431) to=(1,2)
 setSpans all tiny unsortable [1] (2,3) [0] (1,2)
 setSpans all tiny unsortable [1] (2,3) [3] (2.00000024,3)
 markUnsortable id=1 (1,2 0,5 3,2 6,1) t=0 [0] (1,2) tEnd=0.5 newWindSum=0 windSum=1 windValue=1
 markUnsortable id=1 (1,2 0,5 3,2 6,1) t=0.5 [1] (2,3) tEnd=0.5 newWindSum=0 windSum=? windValue=1
 markUnsortable id=3 (2,3 1,6 2,1 5,0) t=0 [2] (2,3) tEnd=0.5 newWindSum=0 windSum=? windValue=1
 markUnsortable id=4 (5,0 2,3) t=1 [3] (2,3) tEnd=1 newWindSum=0 windSum=? windValue=1
 findNextOp debugShowSort contourWinding=1 oppContourWinding=0 sign=1
 debugShowSort [0] *** UNSORTABLE *** {{1,2}, {0,5}, {3,2}, {6,1}} tStart=0.5 tEnd=0 sign=1 windValue=1 windSum=1 1->0 (max=1) done=0 tiny=0 opp=0
 debugShowSort [1] *** UNSORTABLE *** {{1,2}, {0,5}, {3,2}, {6,1}} tStart=0.5 tEnd=0.500000029 sign=-1 windValue=1 windSum=? 0->1 (max=1) done=1 tiny=1 opp=0
 debugShowSort [2] {{2,3}, {1,6}, {2,1}, {5,0}} tStart=0 tEnd=0.5 sign=-1 windValue=1 windSum=? 0->1 (max=1) done=0 tiny=0 opp=1
 debugShowSort [3] {{5,0}, {2,3}} tStart=1 tEnd=0.5 sign=1 windValue=1 windSum=-1 1->0 (max=1) done=0 tiny=0 opp=1
 path.moveTo(2.8621788,1.62756431);
 path.lineTo(1,2);
 path.cubicTo(0.5,3.5, 1,3.5, 2,3);
 markDoneBinary id=1 (1,2 0,5 3,2 6,1) t=0 [0] (1,2) tEnd=0.5 newWindSum=1 newOppSum=0 oppSum=0 windSum=1 windValue=1
 debugShowActiveSpans id=3 (2,3 1,6 2,1 5,0) t=0 (2,3) tEnd=0.5 other=3 otherT=0.5 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (2,3 1,6 2,1 5,0) t=0 (2,3) tEnd=0.5 other=4 otherT=1 otherIndex=2 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (2,3 1,6 2,1 5,0) t=0 (2,3) tEnd=0.5 other=1 otherT=0.5 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (2,3 1,6 2,1 5,0) t=0.5 (2,3) tEnd=0.704088595 other=1 otherT=0.500000029 otherIndex=3 windSum=-1 windValue=1 oppValue=0
 debugShowActiveSpans id=4 (5,0 2,3) t=0.5 (3.5,1.5) tEnd=1 other=2 otherT=0.5 otherIndex=1 windSum=-1 windValue=1 oppValue=0
 debugShowActiveSpans id=1 (1,2 0,5 3,2 6,1) t=0.500000029 (2,3) tEnd=1 other=3 otherT=0.5 otherIndex=5 windSum=1 windValue=1 oppValue=0
 debugShowActiveSpans id=2 (6,1 1,2) t=0 (6,1) tEnd=0.5 other=1 otherT=1 otherIndex=4 windSum=1 windValue=1 oppValue=0
 activeOp op=diff miFrom=1 miTo=1 suFrom=1 suTo=0 result=1
 setSpans unsortable [2] (2,3) [3] (2,3)
 setSpans all tiny unsortable [4] (2,3) [2] (2,3)
 setSpans all tiny unsortable [2] (2,3) [3] (2.00000024,3)
 setSpans all tiny unsortable [2] (2,3) [0] (1,2)
 markUnsortable id=4 (5,0 2,3) t=0.5 [1] (3.5,1.5) tEnd=1 newWindSum=0 windSum=-1 windValue=1
 markUnsortable id=3 (2,3 1,6 2,1 5,0) t=0 [1] (2,3) tEnd=0 newWindSum=0 windSum=? windValue=1
 markUnsortable id=3 (2,3 1,6 2,1 5,0) t=0.5 [4] (2,3) tEnd=0.5 newWindSum=0 windSum=? windValue=1
 markUnsortable id=3 (2,3 1,6 2,1 5,0) t=0.5 [3] (2,3) tEnd=0.5 newWindSum=0 windSum=? windValue=1
 markUnsortable id=1 (1,2 0,5 3,2 6,1) t=0.5 [2] (2,3) tEnd=0.500000029 newWindSum=0 windSum=? windValue=1
 markUnsortable id=1 (1,2 0,5 3,2 6,1) t=0.5 [1] (2,3) tEnd=0.5 newWindSum=0 windSum=? windValue=1
 findNextOp debugShowSort contourWinding=0 oppContourWinding=1 sign=1
 debugShowSort [0] {{5,0}, {2,3}} tStart=1 tEnd=0.5 sign=1 windValue=1 windSum=-1 0->-1 (max=-1) done=0 tiny=0 opp=0
 debugShowSort [1] *** UNSORTABLE *** {{2,3}, {1,6}, {2,1}, {5,0}} tStart=0 tEnd=0.5 sign=-1 windValue=1 windSum=? -1->0 (max=-1) done=0 tiny=0 opp=0
 debugShowSort [2] *** UNSORTABLE *** {{2,3}, {1,6}, {2,1}, {5,0}} tStart=0.5 tEnd=0.5 sign=-1 windValue=1 windSum=? 0->1 (max=1) done=1 tiny=1 opp=0
 debugShowSort [3] *** UNSORTABLE *** {{2,3}, {1,6}, {2,1}, {5,0}} tStart=0.5 tEnd=0 sign=1 windValue=1 windSum=? 1->0 (max=1) done=0 tiny=0 opp=0
 debugShowSort [4] *** UNSORTABLE *** {{1,2}, {0,5}, {3,2}, {6,1}} tStart=0.5 tEnd=0.500000029 sign=-1 windValue=1 windSum=? 1->2 (max=2) done=1 tiny=1 opp=1
 debugShowSort [5] *** UNSORTABLE *** {{1,2}, {0,5}, {3,2}, {6,1}} tStart=0.5 tEnd=0 sign=1 windValue=1 windSum=1 2->1 (max=2) done=1 tiny=0 opp=1
 markDoneBinary id=4 (5,0 2,3) t=0.5 [1] (3.5,1.5) tEnd=1 newWindSum=-1 newOppSum=1 oppSum=1 windSum=-1 windValue=1
 path.moveTo(3.5,1.5);
 path.lineTo(2,3);
 debugShowActiveSpans id=3 (2,3 1,6 2,1 5,0) t=0 (2,3) tEnd=0.5 other=3 otherT=0.5 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (2,3 1,6 2,1 5,0) t=0 (2,3) tEnd=0.5 other=4 otherT=1 otherIndex=2 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (2,3 1,6 2,1 5,0) t=0 (2,3) tEnd=0.5 other=1 otherT=0.5 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (2,3 1,6 2,1 5,0) t=0.5 (2,3) tEnd=0.704088595 other=1 otherT=0.500000029 otherIndex=3 windSum=-1 windValue=1 oppValue=0
 debugShowActiveSpans id=1 (1,2 0,5 3,2 6,1) t=0.500000029 (2,3) tEnd=1 other=3 otherT=0.5 otherIndex=5 windSum=1 windValue=1 oppValue=0
 debugShowActiveSpans id=2 (6,1 1,2) t=0 (6,1) tEnd=0.5 other=1 otherT=1 otherIndex=4 windSum=1 windValue=1 oppValue=0
 activeOp op=diff miFrom=1 miTo=1 suFrom=0 suTo=1 result=1
 markUnsortable id=3 (2,3 1,6 2,1 5,0) t=0.5 [5] (2,3) tEnd=0.704088595 newWindSum=0 windSum=-1 windValue=1
 markUnsortable id=3 (2,3 1,6 2,1 5,0) t=0.5 [4] (2,3) tEnd=0.5 newWindSum=0 windSum=? windValue=1
 markUnsortable id=1 (1,2 0,5 3,2 6,1) t=0.500000029 [3] (2,3) tEnd=1 newWindSum=0 windSum=1 windValue=1
 markUnsortable id=1 (1,2 0,5 3,2 6,1) t=0.5 [2] (2,3) tEnd=0.500000029 newWindSum=0 windSum=? windValue=1
 findNextOp debugShowSort contourWinding=-1 oppContourWinding=1 sign=-1
 debugShowSort [0] {{2,3}, {1,6}, {2,1}, {5,0}} tStart=0.5 tEnd=0.704088595 sign=-1 windValue=1 windSum=-1 -1->0 (max=-1) done=0 tiny=0 opp=0
 debugShowSort [1] *** UNSORTABLE *** {{2,3}, {1,6}, {2,1}, {5,0}} tStart=0.5 tEnd=0.5 sign=1 windValue=1 windSum=? 0->-1 (max=-1) done=1 tiny=1 opp=0
 debugShowSort [2] {{1,2}, {0,5}, {3,2}, {6,1}} tStart=0.500000029 tEnd=1 sign=-1 windValue=1 windSum=1 1->2 (max=2) done=0 tiny=0 opp=1
 debugShowSort [3] {{1,2}, {0,5}, {3,2}, {6,1}} tStart=0.500000029 tEnd=0.5 sign=1 windValue=1 windSum=? 2->1 (max=2) done=1 tiny=1 opp=1
 path.moveTo(2.8621788,1.62756431);
 path.cubicTo(2.49148154,2.10034132, 2.20408869,2.59182286, 2,3);
 markDoneBinary id=3 (2,3 1,6 2,1 5,0) t=0.5 [5] (2,3) tEnd=0.704088595 newWindSum=-1 newOppSum=1 oppSum=1 windSum=-1 windValue=1
 debugShowActiveSpans id=3 (2,3 1,6 2,1 5,0) t=0 (2,3) tEnd=0.5 other=3 otherT=0.5 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (2,3 1,6 2,1 5,0) t=0 (2,3) tEnd=0.5 other=4 otherT=1 otherIndex=2 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (2,3 1,6 2,1 5,0) t=0 (2,3) tEnd=0.5 other=1 otherT=0.5 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (1,2 0,5 3,2 6,1) t=0.500000029 (2,3) tEnd=1 other=3 otherT=0.5 otherIndex=5 windSum=1 windValue=1 oppValue=0
 debugShowActiveSpans id=2 (6,1 1,2) t=0 (6,1) tEnd=0.5 other=1 otherT=1 otherIndex=4 windSum=1 windValue=1 oppValue=0
 activeOp op=diff miFrom=1 miTo=0 suFrom=0 suTo=0 result=1
 findNextOp simple
 markDoneBinary id=2 (6,1 1,2) t=0 [0] (6,1) tEnd=0.5 newWindSum=1 newOppSum=0 oppSum=0 windSum=1 windValue=1
 bridgeOp current id=2 from=(3.5,1.5) to=(6,1)
 setSpans unsortable [3] (2.00000024,3) [4] (6,1)
 setSpans unsortable [3] (2.00000024,3) [2] (2,3)
 setSpans unsortable [5] (2,3) [6] (2.8621788,1.62756431)
 markUnsortable id=1 (1,2 0,5 3,2 6,1) t=0.500000029 [3] (2,3) tEnd=1 newWindSum=0 windSum=1 windValue=1
 markUnsortable id=1 (1,2 0,5 3,2 6,1) t=0.5 [2] (2,3) tEnd=0.500000029 newWindSum=0 windSum=? windValue=1
 markUnsortable id=3 (2,3 1,6 2,1 5,0) t=0.5 [5] (2,3) tEnd=0.704088595 newWindSum=0 windSum=-1 windValue=1
 markUnsortable id=3 (2,3 1,6 2,1 5,0) t=0.5 [4] (2,3) tEnd=0.5 newWindSum=0 windSum=? windValue=1
 findNextOp debugShowSort contourWinding=0 oppContourWinding=0 sign=-1
 debugShowSort [0] *** UNSORTABLE *** {{1,2}, {0,5}, {3,2}, {6,1}} tStart=0.500000029 tEnd=1 sign=-1 windValue=1 windSum=1 0->1 (max=1) done=0 tiny=0 opp=0
 debugShowSort [1] *** UNSORTABLE *** {{1,2}, {0,5}, {3,2}, {6,1}} tStart=0.500000029 tEnd=0.5 sign=1 windValue=1 windSum=? 1->0 (max=1) done=1 tiny=1 opp=0
 debugShowSort [2] *** UNSORTABLE *** {{2,3}, {1,6}, {2,1}, {5,0}} tStart=0.5 tEnd=0.704088595 sign=-1 windValue=1 windSum=-1 0->1 (max=1) done=1 tiny=0 opp=1
 debugShowSort [3] *** UNSORTABLE *** {{2,3}, {1,6}, {2,1}, {5,0}} tStart=0.5 tEnd=0.5 sign=1 windValue=1 windSum=? 1->0 (max=1) done=1 tiny=1 opp=1
 path.moveTo(3.5,1.5);
 path.lineTo(6,1);
 path.cubicTo(4.5,1.5, 3.00000024,2.49999976, 2,3);
 markDoneBinary id=1 (1,2 0,5 3,2 6,1) t=0.500000029 [3] (2,3) tEnd=1 newWindSum=1 newOppSum=0 oppSum=0 windSum=1 windValue=1
 debugShowActiveSpans id=3 (2,3 1,6 2,1 5,0) t=0 (2,3) tEnd=0.5 other=3 otherT=0.5 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (2,3 1,6 2,1 5,0) t=0 (2,3) tEnd=0.5 other=4 otherT=1 otherIndex=2 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (2,3 1,6 2,1 5,0) t=0 (2,3) tEnd=0.5 other=1 otherT=0.5 otherIndex=1 windSum=? windValue=1 oppValue=0
 </div>

 <div id="cubicOp62d">
   SimplifyNew_Test [cubicOp62d]
 {{1,3}, {5,6}, {5,3}, {5,4}},
 {{5,4}, {1,3}},
 op difference
 {{3,5}, {4,5}, {3,1}, {6,5}},
 {{6,5}, {3,5}},
 debugShowCubicIntersection no self intersect {{1,3}, {5,6}, {5,3}, {5,4}}
 debugShowCubicLineIntersection wtTs[0]=0 {{1,3}, {5,6}, {5,3}, {5,4}} {{1,3}} wtTs[1]=0.666666667 {{4.8518518518518512,3.9629629629629628}} wtTs[2]=1 {{5,4}} wnTs[0]=1 {{5,4}, {1,3}} wnTs[1]=0.037037037 wnTs[2]=0
 debugShowCubicIntersection wtTs[0]=0.278899971 {{1,3}, {5,6}, {5,3}, {5,4}} {{3.5001544800676263,4.3269091333431628}} wtTs[1]=0.855895664 {{4.9880300830066844,3.7869549154423883}} wtTs[2]=0.865207906 {{4.9902038991416013,3.7891603690182212}} wtTs[3]=0.865213351 {{4.9902050861407137,3.789162057358868}} wnTs[0]=0.2789 {{3,5}, {4,5}, {3,1}, {6,5}} wnTs[1]=0.864850875 wnTs[2]=0.865207887 wnTs[3]=0.865208087
 debugShowCubicLineIntersection wtTs[0]=0.448187637 {{3,5}, {4,5}, {3,1}, {6,5}} {{3.6795004703683416,3.6698751175920856}} wnTs[0]=0.330125 {{5,4}, {1,3}}
 debugShowCubicIntersection no self intersect {{3,5}, {4,5}, {3,1}, {6,5}}
 debugShowCubicLineIntersection wtTs[0]=0 {{3,5}, {4,5}, {3,1}, {6,5}} {{3,5}} wtTs[1]=1 {{6,5}} wnTs[0]=1 {{6,5}, {3,5}} wnTs[1]=0
 debugShowActiveSpans id=1 (1,3 5,6 5,3 5,4) t=0 (1,3) tEnd=0.278899971 other=2 otherT=1 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (1,3 5,6 5,3 5,4) t=0.278899971 (3.5001545,4.32690907) tEnd=0.666666667 other=3 otherT=0.278899971 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (1,3 5,6 5,3 5,4) t=0.666666667 (4.85185194,3.96296287) tEnd=0.855895664 other=2 otherT=0.037037037 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (1,3 5,6 5,3 5,4) t=0.855895664 (4.98802996,3.78695488) tEnd=0.865207906 other=3 otherT=0.864850875 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (1,3 5,6 5,3 5,4) t=0.865207906 (4.99020386,3.78916025) tEnd=0.865213351 other=3 otherT=0.865207887 otherIndex=4 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (1,3 5,6 5,3 5,4) t=0.865213351 (4.99020529,3.78916216) tEnd=1 other=3 otherT=0.865208087 otherIndex=5 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=2 (5,4 1,3) t=0 (5,4) tEnd=0.037037037 other=1 otherT=1 otherIndex=6 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=2 (5,4 1,3) t=0.037037037 (4.85185194,3.96296287) tEnd=0.330124882 other=1 otherT=0.666666667 otherIndex=2 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=2 (5,4 1,3) t=0.330124882 (3.67950058,3.66987514) tEnd=1 other=3 otherT=0.448187637 otherIndex=2 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (3,5 4,5 3,1 6,5) t=0 (3,5) tEnd=0.278899971 other=4 otherT=1 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (3,5 4,5 3,1 6,5) t=0.278899971 (3.5001545,4.32690907) tEnd=0.448187637 other=1 otherT=0.278899971 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (3,5 4,5 3,1 6,5) t=0.448187637 (3.67950058,3.66987514) tEnd=0.864850875 other=2 otherT=0.330124882 otherIndex=2 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (3,5 4,5 3,1 6,5) t=0.864850875 (4.98802996,3.78695488) tEnd=0.865207887 other=1 otherT=0.855895664 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (3,5 4,5 3,1 6,5) t=0.865207887 (4.99020386,3.78916025) tEnd=0.865208087 other=1 otherT=0.865207906 otherIndex=4 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (3,5 4,5 3,1 6,5) t=0.865208087 (4.99020529,3.78916216) tEnd=1 other=1 otherT=0.865213351 otherIndex=5 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=4 (6,5 3,5) t=0 (6,5) tEnd=1 other=3 otherT=1 otherIndex=6 windSum=? windValue=1 oppValue=0
 findTop debugShowSort contourWinding=0 oppContourWinding=0 sign=-1
 debugShowSort [0] {{1,3}, {5,6}, {5,3}, {5,4}} tStart=0 tEnd=0.278899971 sign=-1 windValue=1 windSum=? 0->1 (max=1) done=0 tiny=0 opp=0
 debugShowSort [1] {{5,4}, {1,3}} tStart=1 tEnd=0.330124882 sign=1 windValue=1 windSum=? 1->0 (max=1) done=0 tiny=0 opp=0
 markWinding id=1 (1,3 5,6 5,3 5,4) t=0 [0] (1,3) tEnd=0.278899971 newWindSum=1 newOppSum=0 oppSum=? windSum=? windValue=1
 markWinding id=2 (5,4 1,3) t=0.330124882 [2] (3.67950058,3.66987514) tEnd=1 newWindSum=1 newOppSum=0 oppSum=? windSum=? windValue=1
 markWinding id=1 (1,3 5,6 5,3 5,4) t=0 [0] (1,3) tEnd=0.278899971 newWindSum=1 newOppSum=0 oppSum=0 windSum=1 windValue=1
 activeOp op=diff miFrom=1 miTo=0 suFrom=0 suTo=0 result=1
 findNextOp simple
 markDoneBinary id=1 (1,3 5,6 5,3 5,4) t=0 [0] (1,3) tEnd=0.278899971 newWindSum=1 newOppSum=0 oppSum=0 windSum=1 windValue=1
 bridgeOp current id=1 from=(3.5001545,4.32690907) to=(1,3)
 path.moveTo(3.5001545,4.32690907);
 path.cubicTo(2.92005897,4.20668888, 2.11559987,3.83669996, 1,3);
 findNextOp debugShowSort contourWinding=0 oppContourWinding=0 sign=-1
 debugShowSort [1] {{5,4}, {1,3}} tStart=0.330124882 tEnd=1 sign=-1 windValue=1 windSum=1 0->1 (max=1) done=0 tiny=0 opp=0
 debugShowSort [2] {{3,5}, {4,5}, {3,1}, {6,5}} tStart=0.448187637 tEnd=0.278899971 sign=1 windValue=1 windSum=? 0->-1 (max=-1) done=0 tiny=0 opp=1
 debugShowSort [3] {{5,4}, {1,3}} tStart=0.330124882 tEnd=0.037037037 sign=1 windValue=1 windSum=? 1->0 (max=1) done=0 tiny=0 opp=0
 debugShowSort [0] {{3,5}, {4,5}, {3,1}, {6,5}} tStart=0.448187637 tEnd=0.864850875 sign=-1 windValue=1 windSum=? -1->0 (max=-1) done=0 tiny=0 opp=1
 findNextOp firstIndex=[1] sign=-1
 activeOp op=diff miFrom=1 miTo=1 suFrom=0 suTo=1 result=1
 markWinding id=3 (3,5 4,5 3,1 6,5) t=0.278899971 [1] (3.5001545,4.32690907) tEnd=0.448187637 newWindSum=-1 newOppSum=1 oppSum=? windSum=? windValue=1
 findNextOp chase.append id=3
 activeOp op=diff miFrom=1 miTo=0 suFrom=1 suTo=1 result=0
 markDoneBinary id=2 (5,4 1,3) t=0.037037037 [1] (4.85185194,3.96296287) tEnd=0.330124882 newWindSum=1 newOppSum=-1 oppSum=? windSum=? windValue=1
 findNextOp chase.append id=2
 activeOp op=diff miFrom=0 miTo=0 suFrom=1 suTo=0 result=0
 markDoneBinary id=3 (3,5 4,5 3,1 6,5) t=0.448187637 [2] (3.67950058,3.66987514) tEnd=0.864850875 newWindSum=-1 newOppSum=0 oppSum=? windSum=? windValue=1
 findNextOp chase.append id=3
 markDoneBinary id=2 (5,4 1,3) t=0.330124882 [2] (3.67950058,3.66987514) tEnd=1 newWindSum=1 newOppSum=0 oppSum=0 windSum=1 windValue=1
 findNextOp from:[2] to:[3] start=2 end=1
 bridgeOp current id=2 from=(1,3) to=(3.67950058,3.66987514)
 findNextOp debugShowSort contourWinding=-1 oppContourWinding=1 sign=-1
 debugShowSort [0] {{3,5}, {4,5}, {3,1}, {6,5}} tStart=0.278899971 tEnd=0.448187637 sign=-1 windValue=1 windSum=-1 -1->0 (max=-1) done=0 tiny=0 opp=0
 debugShowSort [1] {{1,3}, {5,6}, {5,3}, {5,4}} tStart=0.278899971 tEnd=0 sign=1 windValue=1 windSum=1 1->0 (max=1) done=1 tiny=0 opp=1
 debugShowSort [2] {{3,5}, {4,5}, {3,1}, {6,5}} tStart=0.278899971 tEnd=0 sign=1 windValue=1 windSum=? 0->-1 (max=-1) done=0 tiny=0 opp=0
 debugShowSort [3] {{1,3}, {5,6}, {5,3}, {5,4}} tStart=0.278899971 tEnd=0.666666667 sign=-1 windValue=1 windSum=? 0->1 (max=1) done=0 tiny=0 opp=1
 findNextOp firstIndex=[0] sign=-1
 activeOp op=diff miFrom=1 miTo=0 suFrom=0 suTo=0 result=1
 activeOp op=diff miFrom=0 miTo=0 suFrom=0 suTo=1 result=0
 markDoneBinary id=3 (3,5 4,5 3,1 6,5) t=0 [0] (3,5) tEnd=0.278899971 newWindSum=-1 newOppSum=0 oppSum=? windSum=? windValue=1
 markDoneBinary id=4 (6,5 3,5) t=0 [0] (6,5) tEnd=1 newWindSum=-1 newOppSum=0 oppSum=? windSum=? windValue=1
 markDoneBinary id=3 (3,5 4,5 3,1 6,5) t=0.865208087 [5] (4.99020529,3.78916216) tEnd=1 newWindSum=-1 newOppSum=0 oppSum=? windSum=? windValue=1
 findNextOp chase.append id=3
 activeOp op=diff miFrom=0 miTo=1 suFrom=1 suTo=1 result=0
 markDoneBinary id=1 (1,3 5,6 5,3 5,4) t=0.278899971 [1] (3.5001545,4.32690907) tEnd=0.666666667 newWindSum=1 newOppSum=-1 oppSum=? windSum=? windValue=1
 findNextOp chase.append id=1
 markDoneBinary id=3 (3,5 4,5 3,1 6,5) t=0.278899971 [1] (3.5001545,4.32690907) tEnd=0.448187637 newWindSum=-1 newOppSum=1 oppSum=1 windSum=-1 windValue=1
 findNextOp from:[3] to:[1] start=1 end=0
 bridgeOp current id=3 from=(3.67950058,3.66987514) to=(3.5001545,4.32690907)
 path.lineTo(3.67950058,3.66987514);
 path.cubicTo(3.60967231,3.86879396, 3.5595932,4.10721159, 3.5001545,4.32690907);
 path.close();
 findChaseOp debugShowSort contourWinding=? oppContourWinding=? sign=-1
 debugShowSort [0] {{1,3}, {5,6}, {5,3}, {5,4}} tStart=0.666666667 tEnd=0.855895664 sign=-1 windValue=1 windSum=? ?->? (max=?) done=0 tiny=0 opp=0
 debugShowSort [1] {{5,4}, {1,3}} tStart=0.037037037 tEnd=0.330124882 sign=-1 windValue=1 windSum=1 ?->? (max=?) done=1 tiny=0 opp=0
 debugShowSort [2] {{1,3}, {5,6}, {5,3}, {5,4}} tStart=0.666666667 tEnd=0.278899971 sign=1 windValue=1 windSum=1 ?->? (max=?) done=1 tiny=0 opp=0
 debugShowSort [3] {{5,4}, {1,3}} tStart=0.037037037 tEnd=0 sign=1 windValue=1 windSum=? ?->? (max=?) done=0 tiny=0 opp=0
 findChaseOp debugShowSort contourWinding=0 oppContourWinding=-1 sign=-1
 debugShowSort [1] {{5,4}, {1,3}} tStart=0.037037037 tEnd=0.330124882 sign=-1 windValue=1 windSum=1 0->1 (max=1) done=1 tiny=0 opp=0
 debugShowSort [2] {{1,3}, {5,6}, {5,3}, {5,4}} tStart=0.666666667 tEnd=0.278899971 sign=1 windValue=1 windSum=1 1->0 (max=1) done=1 tiny=0 opp=0
 debugShowSort [3] {{5,4}, {1,3}} tStart=0.037037037 tEnd=0 sign=1 windValue=1 windSum=? 0->-1 (max=-1) done=0 tiny=0 opp=0
 debugShowSort [0] {{1,3}, {5,6}, {5,3}, {5,4}} tStart=0.666666667 tEnd=0.855895664 sign=-1 windValue=1 windSum=? -1->0 (max=-1) done=0 tiny=0 opp=0
 markWinding id=2 (5,4 1,3) t=0 [0] (5,4) tEnd=0.037037037 newWindSum=-1 newOppSum=-1 oppSum=? windSum=? windValue=1
 markWinding id=1 (1,3 5,6 5,3 5,4) t=0.865213351 [5] (4.99020529,3.78916216) tEnd=1 newWindSum=-1 newOppSum=-1 oppSum=? windSum=? windValue=1
 markWinding id=1 (1,3 5,6 5,3 5,4) t=0.666666667 [2] (4.85185194,3.96296287) tEnd=0.855895664 newWindSum=-1 newOppSum=-1 oppSum=? windSum=? windValue=1
 debugShowActiveSpans id=1 (1,3 5,6 5,3 5,4) t=0.666666667 (4.85185194,3.96296287) tEnd=0.855895664 other=2 otherT=0.037037037 otherIndex=1 windSum=-1 windValue=1 oppValue=0
 debugShowActiveSpans id=1 (1,3 5,6 5,3 5,4) t=0.855895664 (4.98802996,3.78695488) tEnd=0.865207906 other=3 otherT=0.864850875 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (1,3 5,6 5,3 5,4) t=0.865207906 (4.99020386,3.78916025) tEnd=0.865213351 other=3 otherT=0.865207887 otherIndex=4 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (1,3 5,6 5,3 5,4) t=0.865213351 (4.99020529,3.78916216) tEnd=1 other=3 otherT=0.865208087 otherIndex=5 windSum=-1 windValue=1 oppValue=0
 debugShowActiveSpans id=2 (5,4 1,3) t=0 (5,4) tEnd=0.037037037 other=1 otherT=1 otherIndex=6 windSum=-1 windValue=1 oppValue=0
 debugShowActiveSpans id=3 (3,5 4,5 3,1 6,5) t=0.864850875 (4.98802996,3.78695488) tEnd=0.865207887 other=1 otherT=0.855895664 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (3,5 4,5 3,1 6,5) t=0.865207887 (4.99020386,3.78916025) tEnd=0.865208087 other=1 otherT=0.865207906 otherIndex=4 windSum=? windValue=1 oppValue=0
 activeOp op=diff miFrom=0 miTo=1 suFrom=1 suTo=1 result=0
 markDoneBinary id=2 (5,4 1,3) t=0 [0] (5,4) tEnd=0.037037037 newWindSum=-1 newOppSum=-1 oppSum=-1 windSum=-1 windValue=1
 markDoneBinary id=1 (1,3 5,6 5,3 5,4) t=0.865213351 [5] (4.99020529,3.78916216) tEnd=1 newWindSum=-1 newOppSum=-1 oppSum=-1 windSum=-1 windValue=1
 findChaseOp debugShowSort contourWinding=? oppContourWinding=? sign=1
 debugShowSort [0] {{1,3}, {5,6}, {5,3}, {5,4}} tStart=0.865213351 tEnd=0.865207906 sign=1 windValue=1 windSum=? ?->? (max=?) done=0 tiny=0 opp=0
 debugShowSort [1] {{3,5}, {4,5}, {3,1}, {6,5}} tStart=0.865208087 tEnd=0.865207887 sign=1 windValue=1 windSum=? ?->? (max=?) done=0 tiny=0 opp=1
 debugShowSort [2] {{1,3}, {5,6}, {5,3}, {5,4}} tStart=0.865213351 tEnd=1 sign=-1 windValue=1 windSum=-1 ?->? (max=?) done=1 tiny=0 opp=0
 debugShowSort [3] {{3,5}, {4,5}, {3,1}, {6,5}} tStart=0.865208087 tEnd=1 sign=-1 windValue=1 windSum=-1 ?->? (max=?) done=1 tiny=0 opp=1
 findChaseOp debugShowSort contourWinding=-1 oppContourWinding=-1 sign=-1
 debugShowSort [2] {{1,3}, {5,6}, {5,3}, {5,4}} tStart=0.865213351 tEnd=1 sign=-1 windValue=1 windSum=-1 -1->0 (max=-1) done=1 tiny=0 opp=0
 debugShowSort [3] {{3,5}, {4,5}, {3,1}, {6,5}} tStart=0.865208087 tEnd=1 sign=-1 windValue=1 windSum=-1 -1->0 (max=-1) done=1 tiny=0 opp=1
 debugShowSort [0] {{1,3}, {5,6}, {5,3}, {5,4}} tStart=0.865213351 tEnd=0.865207906 sign=1 windValue=1 windSum=? 0->-1 (max=-1) done=0 tiny=0 opp=0
 debugShowSort [1] {{3,5}, {4,5}, {3,1}, {6,5}} tStart=0.865208087 tEnd=0.865207887 sign=1 windValue=1 windSum=? 0->-1 (max=-1) done=0 tiny=0 opp=1
 markWinding id=1 (1,3 5,6 5,3 5,4) t=0.865207906 [4] (4.99020386,3.78916025) tEnd=0.865213351 newWindSum=-1 newOppSum=0 oppSum=? windSum=? windValue=1
 markWinding id=3 (3,5 4,5 3,1 6,5) t=0.865207887 [4] (4.99020386,3.78916025) tEnd=0.865208087 newWindSum=-1 newOppSum=-1 oppSum=? windSum=? windValue=1
 debugShowActiveSpans id=1 (1,3 5,6 5,3 5,4) t=0.666666667 (4.85185194,3.96296287) tEnd=0.855895664 other=2 otherT=0.037037037 otherIndex=1 windSum=-1 windValue=1 oppValue=0
 debugShowActiveSpans id=1 (1,3 5,6 5,3 5,4) t=0.855895664 (4.98802996,3.78695488) tEnd=0.865207906 other=3 otherT=0.864850875 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (1,3 5,6 5,3 5,4) t=0.865207906 (4.99020386,3.78916025) tEnd=0.865213351 other=3 otherT=0.865207887 otherIndex=4 windSum=-1 windValue=1 oppValue=0
 debugShowActiveSpans id=3 (3,5 4,5 3,1 6,5) t=0.864850875 (4.98802996,3.78695488) tEnd=0.865207887 other=1 otherT=0.855895664 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (3,5 4,5 3,1 6,5) t=0.865207887 (4.99020386,3.78916025) tEnd=0.865208087 other=1 otherT=0.865207906 otherIndex=4 windSum=-1 windValue=1 oppValue=0
 activeOp op=diff miFrom=0 miTo=1 suFrom=0 suTo=0 result=1
 findNextOp debugShowSort contourWinding=-1 oppContourWinding=0 sign=-1
 debugShowSort [2] {{1,3}, {5,6}, {5,3}, {5,4}} tStart=0.865207906 tEnd=0.865213351 sign=-1 windValue=1 windSum=-1 -1->0 (max=-1) done=0 tiny=0 opp=0
 debugShowSort [3] {{3,5}, {4,5}, {3,1}, {6,5}} tStart=0.865207887 tEnd=0.865208087 sign=-1 windValue=1 windSum=-1 0->1 (max=1) done=0 tiny=0 opp=1
 debugShowSort [0] {{1,3}, {5,6}, {5,3}, {5,4}} tStart=0.865207906 tEnd=0.855895664 sign=1 windValue=1 windSum=? 0->-1 (max=-1) done=0 tiny=0 opp=0
 debugShowSort [1] {{3,5}, {4,5}, {3,1}, {6,5}} tStart=0.865207887 tEnd=0.864850875 sign=1 windValue=1 windSum=? 1->0 (max=1) done=0 tiny=0 opp=1
 findNextOp firstIndex=[2] sign=-1
 activeOp op=diff miFrom=0 miTo=0 suFrom=0 suTo=1 result=0
 activeOp op=diff miFrom=0 miTo=1 suFrom=1 suTo=1 result=0
 markDoneBinary id=1 (1,3 5,6 5,3 5,4) t=0.855895664 [3] (4.98802996,3.78695488) tEnd=0.865207906 newWindSum=-1 newOppSum=1 oppSum=? windSum=? windValue=1
 findNextOp chase.append id=1
 activeOp op=diff miFrom=1 miTo=1 suFrom=1 suTo=0 result=1
 markWinding id=3 (3,5 4,5 3,1 6,5) t=0.864850875 [3] (4.98802996,3.78695488) tEnd=0.865207887 newWindSum=1 newOppSum=-1 oppSum=? windSum=? windValue=1
 findNextOp chase.append id=3
 markDoneBinary id=1 (1,3 5,6 5,3 5,4) t=0.865207906 [4] (4.99020386,3.78916025) tEnd=0.865213351 newWindSum=-1 newOppSum=0 oppSum=0 windSum=-1 windValue=1
 findNextOp from:[1] to:[3] start=4 end=3
 bridgeOp current id=1 from=(4.99020529,3.78916216) to=(4.99020386,3.78916025)
 path.moveTo(4.99020529,3.78916216);
 path.cubicTo(4.99020433,3.78916144, 4.99020433,3.78916097, 4.99020386,3.78916025);
 findNextOp debugShowSort contourWinding=0 oppContourWinding=-1 sign=-1
 debugShowSort [2] {{3,5}, {4,5}, {3,1}, {6,5}} tStart=0.864850875 tEnd=0.865207887 sign=-1 windValue=1 windSum=1 0->1 (max=1) done=0 tiny=0 opp=0
 debugShowSort [3] {{1,3}, {5,6}, {5,3}, {5,4}} tStart=0.855895664 tEnd=0.865207906 sign=-1 windValue=1 windSum=-1 -1->0 (max=-1) done=1 tiny=0 opp=1
 debugShowSort [0] {{3,5}, {4,5}, {3,1}, {6,5}} tStart=0.864850875 tEnd=0.448187637 sign=1 windValue=1 windSum=-1 1->0 (max=1) done=1 tiny=0 opp=0
 debugShowSort [1] {{1,3}, {5,6}, {5,3}, {5,4}} tStart=0.855895664 tEnd=0.666666667 sign=1 windValue=1 windSum=-1 0->-1 (max=-1) done=0 tiny=0 opp=1
 findNextOp firstIndex=[2] sign=-1
 activeOp op=diff miFrom=1 miTo=0 suFrom=1 suTo=1 result=0
 activeOp op=diff miFrom=0 miTo=0 suFrom=1 suTo=0 result=0
 activeOp op=diff miFrom=0 miTo=1 suFrom=0 suTo=0 result=1
 markDoneBinary id=3 (3,5 4,5 3,1 6,5) t=0.864850875 [3] (4.98802996,3.78695488) tEnd=0.865207887 newWindSum=1 newOppSum=-1 oppSum=-1 windSum=1 windValue=1
 findNextOp from:[3] to:[1] start=3 end=2
 bridgeOp current id=3 from=(4.99020386,3.78916025) to=(4.98802996,3.78695488)
 path.cubicTo(4.98947859,3.78842425, 4.98875427,3.78768921, 4.98802996,3.78695488);
 findNextOp debugShowSort contourWinding=-1 oppContourWinding=-1 sign=-1
 debugShowSort [0] {{1,3}, {5,6}, {5,3}, {5,4}} tStart=0.666666667 tEnd=0.855895664 sign=-1 windValue=1 windSum=-1 -1->0 (max=-1) done=0 tiny=0 opp=0
 debugShowSort [1] {{5,4}, {1,3}} tStart=0.037037037 tEnd=0.330124882 sign=-1 windValue=1 windSum=1 0->1 (max=1) done=1 tiny=0 opp=0
 debugShowSort [2] {{1,3}, {5,6}, {5,3}, {5,4}} tStart=0.666666667 tEnd=0.278899971 sign=1 windValue=1 windSum=1 1->0 (max=1) done=1 tiny=0 opp=0
 debugShowSort [3] {{5,4}, {1,3}} tStart=0.037037037 tEnd=0 sign=1 windValue=1 windSum=-1 0->-1 (max=-1) done=1 tiny=0 opp=0
 findNextOp firstIndex=[0] sign=-1
 activeOp op=diff miFrom=0 miTo=1 suFrom=1 suTo=1 result=0
 activeOp op=diff miFrom=1 miTo=0 suFrom=1 suTo=1 result=0
 activeOp op=diff miFrom=0 miTo=1 suFrom=1 suTo=1 result=0
 markDoneBinary id=1 (1,3 5,6 5,3 5,4) t=0.666666667 [2] (4.85185194,3.96296287) tEnd=0.855895664 newWindSum=-1 newOppSum=-1 oppSum=-1 windSum=-1 windValue=1
 path.cubicTo(4.97231197,3.77658033, 4.93595362,3.85783577, 4.85185194,3.96296287);
 </div>

 <div id="testQuad1">
   RunTestSet [testQuad1]
 {{0,0}, {0,0}, {0,1}},
 {{0,1}, {1,1}},
 {{1,1}, {0,0}},
 {{0,0}, {1,1}, {0,2}},
 {{0,2}, {0,0}},
 debugShowLineIntersection wtTs[0]=0 {{0,0}, {0,1}} {{0,1}} wnTs[0]=1 {{0,1}, {1,1}}
 debugShowLineIntersection wtTs[0]=1 {{0,0}, {0,1}} {{0,0}} wnTs[0]=0 {{1,1}, {0,0}}
 debugShowLineIntersection wtTs[0]=-0 {{0,1}, {1,1}} {{1,1}} wnTs[0]=1 {{1,1}, {0,0}}
 debugShowQuadLineIntersection wtTs[0]=0 {{0,0}, {1,1}, {0,2}} {{0,0}} wnTs[0]=0 {{0,0}, {0,1}}
 debugShowLineIntersection wtTs[0]=1 {{0,0}, {0,1}} {{0,0}} wtTs[1]=0.5 {{0,1}} wnTs[0]=-0 {{0,2}, {0,0}} wnTs[1]=1
 debugShowQuadLineIntersection wtTs[0]=0.5 {{0,0}, {1,1}, {0,2}} {{0.5,1}} wnTs[0]=0.5 {{0,1}, {1,1}}
 debugShowLineIntersection wtTs[0]=0.5 {{0,1}, {1,1}} {{0,1}} wnTs[0]=0 {{0,2}, {0,0}}
 debugShowQuadLineIntersection wtTs[0]=0 {{0,0}, {1,1}, {0,2}} {{0,0}} wnTs[0]=1 {{1,1}, {0,0}}
 debugShowLineIntersection wtTs[0]=1 {{1,1}, {0,0}} {{0,0}} wnTs[0]=1 {{0,2}, {0,0}}
 debugShowQuadLineIntersection wtTs[0]=0 {{0,0}, {1,1}, {0,2}} {{0,0}} wtTs[1]=1 {{0,2}} wnTs[0]=1 {{0,2}, {0,0}} wnTs[1]=0
 debugShowTs id=1 [o=3,4 t=0 0,0 w=1 o=0] [o=2 t=1 0,1 w=1 o=0]
 debugShowTs id=5 [o=4 t=0 0,2 w=1 o=0] [o=2 t=0.5 0,1 w=1 o=0] [o=3,4 t=1 0,0 w=1 o=0]
 addTPair addTPair this=5 0.5 other=1 1
 debugShowTs id=1 [o=3,4 t=0 0,0 w=1 o=0] [o=2,5 t=1 0,1 w=1 o=0]
 debugShowTs id=5 [o=4 t=0 0,2 w=1 o=0] [o=2,1 t=0.5 0,1 w=1 o=0] [o=3,4 t=1 0,0 w=1 o=0]
 debugShowTs id=1 [o=3,4 t=0 0,0 w=0 o=0] [o=2,5 t=1 0,1 w=1 o=0] done
 debugShowTs id=5 [o=4 t=0 0,2 w=1 o=0] [o=2,1 t=0.5 0,1 w=0 o=0] [o=3,4 t=1 0,0 w=1 o=0]
 debugShowActiveSpans id=2 (0,1 1,1) t=0 (0,1) tEnd=0.5 other=1 otherT=1 otherIndex=2 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=2 (0,1 1,1) t=0 (0,1) tEnd=0.5 other=5 otherT=0.5 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=2 (0,1 1,1) t=0.5 (0.5,1) tEnd=1 other=4 otherT=0.5 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (1,1 0,0) t=-0 (1,1) tEnd=1 other=2 otherT=1 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=4 (0,0 1,1 0,2) t=0 (0,0) tEnd=0.5 other=1 otherT=0 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=4 (0,0 1,1 0,2) t=0 (0,0) tEnd=0.5 other=3 otherT=1 otherIndex=2 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=4 (0,0 1,1 0,2) t=0 (0,0) tEnd=0.5 other=5 otherT=1 otherIndex=4 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=4 (0,0 1,1 0,2) t=0.5 (0.5,1) tEnd=1 other=2 otherT=0.5 otherIndex=2 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=5 (0,2 0,0) t=0 (0,2) tEnd=0.5 other=4 otherT=1 otherIndex=4 windSum=? windValue=1 oppValue=0
 findTop debugShowSort contourWinding=0 oppContourWinding=0 sign=-1
 debugShowSort [0] {{0,0}, {1,1}, {0,2}} tStart=0 tEnd=0.5 sign=-1 windValue=1 windSum=? 0->1 (max=1) done=0 tiny=0 opp=0
 debugShowSort [1] {{1,1}, {0,0}} tStart=1 tEnd=-0 sign=1 windValue=1 windSum=? 1->0 (max=1) done=0 tiny=0 opp=0
 findTop swap=1 serpentine=0 controls_contained_by_ends=0
 markWinding id=4 (0,0 1,1 0,2) t=0 [0] (0,0) tEnd=0 newWindSum=-1 newOppSum=0 oppSum=? windSum=? windValue=1
 markWinding id=4 (0,0 1,1 0,2) t=0 [1] (0,0) tEnd=0 newWindSum=-1 newOppSum=0 oppSum=? windSum=? windValue=1
 markWinding id=4 (0,0 1,1 0,2) t=0 [2] (0,0) tEnd=0.5 newWindSum=-1 newOppSum=0 oppSum=? windSum=? windValue=1
 markWinding id=4 (0,0 1,1 0,2) t=0 [0] (0,0) tEnd=0 newWindSum=-1 newOppSum=0 oppSum=0 windSum=-1 windValue=1
 markWinding id=4 (0,0 1,1 0,2) t=0 [1] (0,0) tEnd=0 newWindSum=-1 newOppSum=0 oppSum=0 windSum=-1 windValue=1
 markWinding id=4 (0,0 1,1 0,2) t=0 [2] (0,0) tEnd=0.5 newWindSum=-1 newOppSum=0 oppSum=0 windSum=-1 windValue=1
 findNextWinding debugShowSort contourWinding=0 oppContourWinding=0 sign=1
 debugShowSort [0] {{0,0}, {1,1}, {0,2}} tStart=0.5 tEnd=0 sign=1 windValue=1 windSum=-1 0->-1 (max=-1) done=0 tiny=0 opp=0
 debugShowSort [1] {{0,1}, {1,1}} tStart=0.5 tEnd=0 sign=1 windValue=1 windSum=? -1->-2 (max=-2) done=0 tiny=0 opp=0
 debugShowSort [2] {{0,0}, {1,1}, {0,2}} tStart=0.5 tEnd=1 sign=-1 windValue=1 windSum=? -2->-1 (max=-2) done=0 tiny=0 opp=0
 debugShowSort [3] {{0,1}, {1,1}} tStart=0.5 tEnd=1 sign=-1 windValue=1 windSum=? -1->0 (max=-1) done=0 tiny=0 opp=0
 findNextWinding firstIndex=[0] sign=1
 markDone id=2 (0,1 1,1) t=0 [0] (0,1) tEnd=0 newWindSum=-2 windSum=? windValue=1
 markDone id=2 (0,1 1,1) t=0 [1] (0,1) tEnd=0.5 newWindSum=-2 windSum=? windValue=1
 findNextWinding chase.append id=2
 markDone id=4 (0,0 1,1 0,2) t=0.5 [3] (0.5,1) tEnd=1 newWindSum=-2 windSum=? windValue=1
 markDone id=5 (0,2 0,0) t=0 [0] (0,2) tEnd=0.5 newWindSum=-2 windSum=? windValue=1
 findNextWinding chase.append id=5
 markWinding id=2 (0,1 1,1) t=0.5 [2] (0.5,1) tEnd=1 newWindSum=-1 windSum=? windValue=1
 markWinding id=3 (1,1 0,0) t=-0 [0] (1,1) tEnd=1 newWindSum=-1 windSum=? windValue=1
 findNextWinding chase.append id=3
 markDoneUnary id=4 (0,0 1,1 0,2) t=0 [0] (0,0) tEnd=0 newWindSum=-1 windSum=-1 windValue=1
 markDoneUnary id=4 (0,0 1,1 0,2) t=0 [1] (0,0) tEnd=0 newWindSum=-1 windSum=-1 windValue=1
 markDoneUnary id=4 (0,0 1,1 0,2) t=0 [2] (0,0) tEnd=0.5 newWindSum=-1 windSum=-1 windValue=1
 findNextWinding from:[4] to:[2] start=2 end=3
 bridgeWinding current id=4 from=(0,0) to=(0.5,1)
 path.moveTo(0,0);
 path.quadTo(0.5,0.5, 0.5,1);
 findNextWinding simple
 markDoneUnary id=2 (0,1 1,1) t=0.5 [2] (0.5,1) tEnd=1 newWindSum=-1 windSum=-1 windValue=1
 bridgeWinding current id=2 from=(0.5,1) to=(1,1)
 findNextWinding debugShowSort contourWinding=0 oppContourWinding=? sign=1
 debugShowSort [1] {{1,1}, {0,0}} tStart=1 tEnd=-0 sign=1 windValue=1 windSum=-1 0->-1 (max=-1) done=0 tiny=0 opp=0
 debugShowSort [0] {{0,0}, {1,1}, {0,2}} tStart=0 tEnd=0.5 sign=-1 windValue=1 windSum=-1 -1->0 (max=-1) done=1 tiny=0 opp=0
 findNextWinding firstIndex=[1] sign=1
 markDoneUnary id=3 (1,1 0,0) t=-0 [0] (1,1) tEnd=1 newWindSum=-1 windSum=-1 windValue=1
 findNextWinding from:[3] to:[4] start=1 end=3
 bridgeWinding current id=3 from=(1,1) to=(0,0)
 path.lineTo(1,1);
 path.lineTo(0,0);
 path.close();
 </div>

 <div id="cubicOp67u">
   RunTestSet [cubicOp67u]
 {{3,5}, {1,6}, {5,0}, {3,1}},
 {{3,1}, {3,5}},
 op union
 {{0,5}, {1,3}, {5,3}, {6,1}},
 {{6,1}, {0,5}},
 debugShowCubicIntersection no self intersect {{3,5}, {1,6}, {5,0}, {3,1}}
 debugShowCubicLineIntersection wtTs[0]=0 {{3,5}, {1,6}, {5,0}, {3,1}} {{3,5}} wtTs[1]=0.5 {{3,3}} wtTs[2]=1 {{3,1}} wnTs[0]=1 {{3,1}, {3,5}} wnTs[1]=0.5 wnTs[2]=0
 debugShowCubicIntersection no intersect {{3,5}, {1,6}, {5,0}, {3,1}} {{0,5}, {1,3}, {5,3}, {6,1}}
 debugShowCubicLineIntersection wtTs[0]=0.5 {{3,5}, {1,6}, {5,0}, {3,1}} {{2.9999999999999991,3.0000000000000004}} wnTs[0]=0.5 {{6,1}, {0,5}}
 debugShowCubicLineIntersection wtTs[0]=0.5 {{0,5}, {1,3}, {5,3}, {6,1}} {{2.9999999999999991,2.9999999999999991}} wnTs[0]=0.5 {{3,1}, {3,5}}
 debugShowLineIntersection wtTs[0]=0.5 {{3,1}, {3,5}} {{3,3}} wnTs[0]=0.5 {{6,1}, {0,5}}
 debugShowCubicIntersection no self intersect {{0,5}, {1,3}, {5,3}, {6,1}}
 debugShowCubicLineIntersection wtTs[0]=0 {{0,5}, {1,3}, {5,3}, {6,1}} {{0,5}} wtTs[1]=0.5 {{3,3}} wtTs[2]=1 {{6,1}} wnTs[0]=1 {{6,1}, {0,5}} wnTs[1]=0.5 wnTs[2]=0
 SkOpSegment::debugShowActiveSpans id=1 (3,5 1,6 5,0 3,1) t=0 (3,5) tEnd=0.5 other=2 otherT=1 otherIndex=4 windSum=? windValue=1 oppValue=0
 SkOpSegment::debugShowActiveSpans id=1 (3,5 1,6 5,0 3,1) t=0.5 (3,3) tEnd=1 other=4 otherT=0.5 otherIndex=3 windSum=? windValue=1 oppValue=0
 SkOpSegment::debugShowActiveSpans id=1 (3,5 1,6 5,0 3,1) t=0.5 (3,3) tEnd=1 other=2 otherT=0.5 otherIndex=2 windSum=? windValue=1 oppValue=0
 SkOpSegment::debugShowActiveSpans id=2 (3,1 3,5) t=0 (3,1) tEnd=0.5 other=1 otherT=1 otherIndex=3 windSum=? windValue=1 oppValue=0
 SkOpSegment::debugShowActiveSpans id=2 (3,1 3,5) t=0.5 (3,3) tEnd=1 other=3 otherT=0.5 otherIndex=1 windSum=? windValue=1 oppValue=0
 SkOpSegment::debugShowActiveSpans id=2 (3,1 3,5) t=0.5 (3,3) tEnd=1 other=1 otherT=0.5 otherIndex=2 windSum=? windValue=1 oppValue=0
 SkOpSegment::debugShowActiveSpans id=2 (3,1 3,5) t=0.5 (3,3) tEnd=1 other=4 otherT=0.5 otherIndex=1 windSum=? windValue=1 oppValue=0
 SkOpSegment::debugShowActiveSpans id=3 (0,5 1,3 5,3 6,1) t=0 (0,5) tEnd=0.5 other=4 otherT=1 otherIndex=4 windSum=? windValue=1 oppValue=0
 SkOpSegment::debugShowActiveSpans id=3 (0,5 1,3 5,3 6,1) t=0.5 (3,3) tEnd=1 other=2 otherT=0.5 otherIndex=1 windSum=? windValue=1 oppValue=0
 SkOpSegment::debugShowActiveSpans id=3 (0,5 1,3 5,3 6,1) t=0.5 (3,3) tEnd=1 other=4 otherT=0.5 otherIndex=2 windSum=? windValue=1 oppValue=0
 SkOpSegment::debugShowActiveSpans id=4 (6,1 0,5) t=0 (6,1) tEnd=0.5 other=3 otherT=1 otherIndex=3 windSum=? windValue=1 oppValue=0
 SkOpSegment::debugShowActiveSpans id=4 (6,1 0,5) t=0.5 (3,3) tEnd=1 other=2 otherT=0.5 otherIndex=3 windSum=? windValue=1 oppValue=0
 SkOpSegment::debugShowActiveSpans id=4 (6,1 0,5) t=0.5 (3,3) tEnd=1 other=3 otherT=0.5 otherIndex=2 windSum=? windValue=1 oppValue=0
 SkOpSegment::debugShowActiveSpans id=4 (6,1 0,5) t=0.5 (3,3) tEnd=1 other=1 otherT=0.5 otherIndex=1 windSum=? windValue=1 oppValue=0
 SkOpSegment::findTop SkOpSegment::debugShowSort contourWinding=0 oppContourWinding=0 sign=1
 SkOpSegment::debugShowSort [0] {{3,5}, {1,6}, {5,0}, {3,1}} tStart=1 tEnd=0.5 sign=1 windValue=1 windSum=? 0->-1 (max=-1) done=0 tiny=0 opp=0
 SkOpSegment::debugShowSort [1] {{3,1}, {3,5}} tStart=0 tEnd=0.5 sign=-1 windValue=1 windSum=? -1->0 (max=-1) done=0 tiny=0 opp=0
 SkOpSegment::findTop swap=1 serpentine=0 containedByEnds=0 monotonic=0
 SkOpSegment::markWinding id=1 (3,5 1,6 5,0 3,1) t=0.5 [1] (3,3) tEnd=0.5 newWindSum=1 newOppSum=0 oppSum=? windSum=? windValue=1
 SkOpSegment::markWinding id=1 (3,5 1,6 5,0 3,1) t=0.5 [2] (3,3) tEnd=1 newWindSum=1 newOppSum=0 oppSum=? windSum=? windValue=1
 SkOpSegment::markWinding id=1 (3,5 1,6 5,0 3,1) t=0.5 [1] (3,3) tEnd=0.5 newWindSum=1 newOppSum=0 oppSum=0 windSum=1 windValue=1
 SkOpSegment::markWinding id=1 (3,5 1,6 5,0 3,1) t=0.5 [2] (3,3) tEnd=1 newWindSum=1 newOppSum=0 oppSum=0 windSum=1 windValue=1
 SkOpSegment::markWinding id=2 (3,1 3,5) t=0 [0] (3,1) tEnd=0.5 newWindSum=1 newOppSum=0 oppSum=? windSum=? windValue=1
 SkOpSegment::activeOp op=union miFrom=1 miTo=0 suFrom=0 suTo=0 result=1
 SkOpSegment::findNextOp SkOpSegment::debugShowSort contourWinding=0 oppContourWinding=0 sign=-1
 SkOpSegment::debugShowSort [1] {{3,5}, {1,6}, {5,0}, {3,1}} tStart=0.5 tEnd=1 sign=-1 windValue=1 windSum=1 0->1 (max=1) done=0 tiny=0 opp=0
 SkOpSegment::debugShowSort [2] {{3,1}, {3,5}} tStart=0.5 tEnd=0 sign=1 windValue=1 windSum=1 1->0 (max=1) done=0 tiny=0 opp=0
 SkOpSegment::debugShowSort [3] {{6,1}, {0,5}} tStart=0.5 tEnd=1 sign=-1 windValue=1 windSum=? 0->1 (max=1) done=0 tiny=0 opp=1
 SkOpSegment::debugShowSort [4] {{3,5}, {1,6}, {5,0}, {3,1}} tStart=0.5 tEnd=0 sign=1 windValue=1 windSum=? 0->-1 (max=-1) done=0 tiny=0 opp=0
 SkOpSegment::debugShowSort [5] {{3,1}, {3,5}} tStart=0.5 tEnd=1 sign=-1 windValue=1 windSum=? -1->0 (max=-1) done=0 tiny=0 opp=0
 SkOpSegment::debugShowSort [0] {{6,1}, {0,5}} tStart=0.5 tEnd=0 sign=1 windValue=1 windSum=? 1->0 (max=1) done=0 tiny=0 opp=1
 SkOpSegment::findNextOp firstIndex=[1] sign=-1
 SkOpSegment::activeOp op=union miFrom=1 miTo=0 suFrom=0 suTo=0 result=1
 SkOpSegment::activeOp op=union miFrom=0 miTo=0 suFrom=0 suTo=1 result=1
 SkOpSegment::markWinding id=4 (6,1 0,5) t=0.5 [2] (3,3) tEnd=0.5 newWindSum=1 newOppSum=0 oppSum=? windSum=? windValue=1
 SkOpSegment::markWinding id=4 (6,1 0,5) t=0.5 [1] (3,3) tEnd=0.5 newWindSum=1 newOppSum=0 oppSum=? windSum=? windValue=1
 SkOpSegment::markWinding id=4 (6,1 0,5) t=0.5 [3] (3,3) tEnd=1 newWindSum=1 newOppSum=0 oppSum=? windSum=? windValue=1
 SkOpSegment::markWinding id=3 (0,5 1,3 5,3 6,1) t=0 [0] (0,5) tEnd=0.5 newWindSum=1 newOppSum=0 oppSum=? windSum=? windValue=1
 SkOpSegment::findNextOp chase.append id=3
 SkOpSegment::activeOp op=union miFrom=0 miTo=1 suFrom=1 suTo=1 result=0
 SkOpSegment::markDoneBinary id=1 (3,5 1,6 5,0 3,1) t=0 [0] (3,5) tEnd=0.5 newWindSum=-1 newOppSum=1 oppSum=? windSum=? windValue=1
 SkOpSegment::markDoneBinary id=2 (3,1 3,5) t=0.5 [2] (3,3) tEnd=0.5 newWindSum=-1 newOppSum=1 oppSum=? windSum=? windValue=1
 SkOpSegment::markDoneBinary id=2 (3,1 3,5) t=0.5 [1] (3,3) tEnd=0.5 newWindSum=-1 newOppSum=1 oppSum=? windSum=? windValue=1
 SkOpSegment::markDoneBinary id=2 (3,1 3,5) t=0.5 [3] (3,3) tEnd=1 newWindSum=-1 newOppSum=1 oppSum=? windSum=? windValue=1
 SkOpSegment::findNextOp chase.append id=2
 SkOpSegment::activeOp op=union miFrom=1 miTo=0 suFrom=1 suTo=1 result=0
 SkOpSegment::activeOp op=union miFrom=0 miTo=0 suFrom=1 suTo=0 result=1
 SkOpSegment::markWinding id=4 (6,1 0,5) t=0 [0] (6,1) tEnd=0.5 newWindSum=1 newOppSum=0 oppSum=? windSum=? windValue=1
 SkOpSegment::markWinding id=3 (0,5 1,3 5,3 6,1) t=0.5 [1] (3,3) tEnd=0.5 newWindSum=1 newOppSum=0 oppSum=? windSum=? windValue=1
 SkOpSegment::markWinding id=3 (0,5 1,3 5,3 6,1) t=0.5 [2] (3,3) tEnd=1 newWindSum=1 newOppSum=0 oppSum=? windSum=? windValue=1
 SkOpSegment::findNextOp chase.append id=3
 SkOpSegment::markDoneBinary id=1 (3,5 1,6 5,0 3,1) t=0.5 [1] (3,3) tEnd=0.5 newWindSum=1 newOppSum=0 oppSum=0 windSum=1 windValue=1
 SkOpSegment::markDoneBinary id=1 (3,5 1,6 5,0 3,1) t=0.5 [2] (3,3) tEnd=1 newWindSum=1 newOppSum=0 oppSum=0 windSum=1 windValue=1
 SkOpSegment::findNextOp from:[1] to:[2] start=2 end=0
 bridgeOp current id=1 from=(3,1) to=(3,3)
 path.moveTo(3,1);
 path.cubicTo(4,0.5, 3.5,1.75, 3,3);
 SkOpSegment::findNextOp simple
 SkOpSegment::markDoneBinary id=2 (3,1 3,5) t=0 [0] (3,1) tEnd=0.5 newWindSum=1 newOppSum=0 oppSum=0 windSum=1 windValue=1
 bridgeOp current id=2 from=(3,3) to=(3,1)
 path.lineTo(3,1);
 path.close();
 SkOpSegment::debugShowActiveSpans id=3 (0,5 1,3 5,3 6,1) t=0 (0,5) tEnd=0.5 other=4 otherT=1 otherIndex=4 windSum=1 windValue=1 oppValue=0
 SkOpSegment::debugShowActiveSpans id=3 (0,5 1,3 5,3 6,1) t=0.5 (3,3) tEnd=1 other=2 otherT=0.5 otherIndex=1 windSum=1 windValue=1 oppValue=0
 SkOpSegment::debugShowActiveSpans id=3 (0,5 1,3 5,3 6,1) t=0.5 (3,3) tEnd=1 other=4 otherT=0.5 otherIndex=2 windSum=1 windValue=1 oppValue=0
 SkOpSegment::debugShowActiveSpans id=4 (6,1 0,5) t=0 (6,1) tEnd=0.5 other=3 otherT=1 otherIndex=3 windSum=1 windValue=1 oppValue=0
 SkOpSegment::debugShowActiveSpans id=4 (6,1 0,5) t=0.5 (3,3) tEnd=1 other=2 otherT=0.5 otherIndex=3 windSum=1 windValue=1 oppValue=0
 SkOpSegment::debugShowActiveSpans id=4 (6,1 0,5) t=0.5 (3,3) tEnd=1 other=3 otherT=0.5 otherIndex=2 windSum=1 windValue=1 oppValue=0
 SkOpSegment::debugShowActiveSpans id=4 (6,1 0,5) t=0.5 (3,3) tEnd=1 other=1 otherT=0.5 otherIndex=1 windSum=1 windValue=1 oppValue=0
 SkOpSegment::activeOp op=union miFrom=0 miTo=0 suFrom=0 suTo=1 result=1
 SkOpSegment::findNextOp simple
 SkOpSegment::markDoneBinary id=3 (0,5 1,3 5,3 6,1) t=0.5 [1] (3,3) tEnd=0.5 newWindSum=1 newOppSum=0 oppSum=0 windSum=1 windValue=1
 SkOpSegment::markDoneBinary id=3 (0,5 1,3 5,3 6,1) t=0.5 [2] (3,3) tEnd=1 newWindSum=1 newOppSum=0 oppSum=0 windSum=1 windValue=1
 bridgeOp current id=3 from=(3,3) to=(6,1)
 path.moveTo(3,3);
 path.cubicTo(4.25,2.5, 5.5,2, 6,1);
 SkOpSegment::findNextOp SkOpSegment::debugShowSort contourWinding=1 oppContourWinding=0 sign=1
 SkOpSegment::debugShowSort [1] {{6,1}, {0,5}} tStart=0.5 tEnd=0 sign=1 windValue=1 windSum=1 1->0 (max=1) done=0 tiny=0 opp=0
 SkOpSegment::debugShowSort [2] {{3,5}, {1,6}, {5,0}, {3,1}} tStart=0.5 tEnd=1 sign=-1 windValue=1 windSum=1 0->1 (max=1) done=1 tiny=0 opp=1
 SkOpSegment::debugShowSort [3] {{3,1}, {3,5}} tStart=0.5 tEnd=0 sign=1 windValue=1 windSum=1 1->0 (max=1) done=1 tiny=0 opp=1
 SkOpSegment::debugShowSort [4] {{0,5}, {1,3}, {5,3}, {6,1}} tStart=0.5 tEnd=0 sign=1 windValue=1 windSum=1 0->-1 (max=-1) done=0 tiny=0 opp=0
 SkOpSegment::debugShowSort [5] {{6,1}, {0,5}} tStart=0.5 tEnd=1 sign=-1 windValue=1 windSum=1 -1->0 (max=-1) done=0 tiny=0 opp=0
 SkOpSegment::debugShowSort [6] {{3,5}, {1,6}, {5,0}, {3,1}} tStart=0.5 tEnd=0 sign=1 windValue=1 windSum=-1 0->-1 (max=-1) done=1 tiny=0 opp=1
 SkOpSegment::debugShowSort [7] {{3,1}, {3,5}} tStart=0.5 tEnd=1 sign=-1 windValue=1 windSum=-1 -1->0 (max=-1) done=1 tiny=0 opp=1
 SkOpSegment::debugShowSort [0] {{0,5}, {1,3}, {5,3}, {6,1}} tStart=0.5 tEnd=1 sign=-1 windValue=1 windSum=1 0->1 (max=1) done=1 tiny=0 opp=0
 SkOpSegment::findNextOp firstIndex=[1] sign=1
 SkOpSegment::activeOp op=union miFrom=0 miTo=1 suFrom=0 suTo=0 result=1
 SkOpSegment::activeOp op=union miFrom=1 miTo=0 suFrom=0 suTo=0 result=1
 SkOpSegment::activeOp op=union miFrom=0 miTo=0 suFrom=0 suTo=1 result=1
 SkOpSegment::activeOp op=union miFrom=0 miTo=0 suFrom=1 suTo=0 result=1
 SkOpSegment::activeOp op=union miFrom=0 miTo=1 suFrom=0 suTo=0 result=1
 SkOpSegment::activeOp op=union miFrom=1 miTo=0 suFrom=0 suTo=0 result=1
 SkOpSegment::activeOp op=union miFrom=0 miTo=0 suFrom=0 suTo=1 result=1
 SkOpSegment::markDoneBinary id=4 (6,1 0,5) t=0 [0] (6,1) tEnd=0.5 newWindSum=1 newOppSum=0 oppSum=0 windSum=1 windValue=1
 SkOpSegment::findNextOp from:[4] to:[3] start=2 end=0
 bridgeOp current id=4 from=(6,1) to=(3,3)
 path.lineTo(3,3);
 path.close();
 SkOpSegment::debugShowActiveSpans id=3 (0,5 1,3 5,3 6,1) t=0 (0,5) tEnd=0.5 other=4 otherT=1 otherIndex=4 windSum=1 windValue=1 oppValue=0
 SkOpSegment::debugShowActiveSpans id=4 (6,1 0,5) t=0.5 (3,3) tEnd=1 other=2 otherT=0.5 otherIndex=3 windSum=1 windValue=1 oppValue=0
 SkOpSegment::debugShowActiveSpans id=4 (6,1 0,5) t=0.5 (3,3) tEnd=1 other=3 otherT=0.5 otherIndex=2 windSum=1 windValue=1 oppValue=0
 SkOpSegment::debugShowActiveSpans id=4 (6,1 0,5) t=0.5 (3,3) tEnd=1 other=1 otherT=0.5 otherIndex=1 windSum=1 windValue=1 oppValue=0
 SkOpSegment::activeOp op=union miFrom=0 miTo=0 suFrom=1 suTo=0 result=1
 SkOpSegment::findNextOp simple
 SkOpSegment::markDoneBinary id=3 (0,5 1,3 5,3 6,1) t=0 [0] (0,5) tEnd=0.5 newWindSum=1 newOppSum=0 oppSum=0 windSum=1 windValue=1
 bridgeOp current id=3 from=(3,3) to=(0,5)
 path.moveTo(3,3);
 path.cubicTo(1.75,3.5, 0.5,4, 0,5);
 SkOpSegment::findNextOp SkOpSegment::debugShowSort contourWinding=0 oppContourWinding=0 sign=-1
 SkOpSegment::debugShowSort [5] {{6,1}, {0,5}} tStart=0.5 tEnd=1 sign=-1 windValue=1 windSum=1 0->1 (max=1) done=0 tiny=0 opp=0
 SkOpSegment::debugShowSort [6] {{3,5}, {1,6}, {5,0}, {3,1}} tStart=0.5 tEnd=0 sign=1 windValue=1 windSum=-1 0->-1 (max=-1) done=1 tiny=0 opp=1
 SkOpSegment::debugShowSort [7] {{3,1}, {3,5}} tStart=0.5 tEnd=1 sign=-1 windValue=1 windSum=-1 -1->0 (max=-1) done=1 tiny=0 opp=1
 SkOpSegment::debugShowSort [0] {{0,5}, {1,3}, {5,3}, {6,1}} tStart=0.5 tEnd=1 sign=-1 windValue=1 windSum=1 1->2 (max=2) done=1 tiny=0 opp=0
 SkOpSegment::debugShowSort [1] {{6,1}, {0,5}} tStart=0.5 tEnd=0 sign=1 windValue=1 windSum=1 2->1 (max=2) done=1 tiny=0 opp=0
 SkOpSegment::debugShowSort [2] {{3,5}, {1,6}, {5,0}, {3,1}} tStart=0.5 tEnd=1 sign=-1 windValue=1 windSum=1 0->1 (max=1) done=1 tiny=0 opp=1
 SkOpSegment::debugShowSort [3] {{3,1}, {3,5}} tStart=0.5 tEnd=0 sign=1 windValue=1 windSum=1 1->0 (max=1) done=1 tiny=0 opp=1
 SkOpSegment::debugShowSort [4] {{0,5}, {1,3}, {5,3}, {6,1}} tStart=0.5 tEnd=0 sign=1 windValue=1 windSum=1 1->0 (max=1) done=1 tiny=0 opp=0
 SkOpSegment::findNextOp firstIndex=[5] sign=-1
 SkOpSegment::activeOp op=union miFrom=0 miTo=1 suFrom=1 suTo=1 result=0
 SkOpSegment::activeOp op=union miFrom=1 miTo=0 suFrom=1 suTo=1 result=0
 SkOpSegment::activeOp op=union miFrom=0 miTo=0 suFrom=1 suTo=1 result=0
 SkOpSegment::activeOp op=union miFrom=0 miTo=0 suFrom=1 suTo=1 result=0
 SkOpSegment::activeOp op=union miFrom=0 miTo=1 suFrom=1 suTo=1 result=0
 SkOpSegment::activeOp op=union miFrom=1 miTo=0 suFrom=1 suTo=1 result=0
 SkOpSegment::activeOp op=union miFrom=0 miTo=0 suFrom=1 suTo=0 result=1
 SkOpSegment::markDoneBinary id=4 (6,1 0,5) t=0.5 [2] (3,3) tEnd=0.5 newWindSum=1 newOppSum=0 oppSum=0 windSum=1 windValue=1
 SkOpSegment::markDoneBinary id=4 (6,1 0,5) t=0.5 [1] (3,3) tEnd=0.5 newWindSum=1 newOppSum=0 oppSum=0 windSum=1 windValue=1
 SkOpSegment::markDoneBinary id=4 (6,1 0,5) t=0.5 [3] (3,3) tEnd=1 newWindSum=1 newOppSum=0 oppSum=0 windSum=1 windValue=1
 SkOpSegment::findNextOp from:[4] to:[3] start=2 end=0
 bridgeOp current id=4 from=(0,5) to=(3,3)
 path.lineTo(3,3);
 path.close();
 </div>

 <div id="cubicOp68u">
   RunTestSet [cubicOp68u]
 {{0,5}, {4,5}, {4,1}, {5,0}},
 {{5,0}, {0,5}},
 op union
 {{1,4}, {0,5}, {5,0}, {5,4}},
 {{5,4}, {1,4}},
 debugShowCubicIntersection no self intersect {{0,5}, {4,5}, {4,1}, {5,0}}
 debugShowCubicLineIntersection wtTs[0]=0 {{0,5}, {4,5}, {4,1}, {5,0}} {{0,5}} wtTs[1]=1 {{5,0}} wnTs[0]=1 {{5,0}, {0,5}} wnTs[1]=0
 debugShowCubicIntersection wtTs[0]=0.565184359 {{0,5}, {4,5}, {4,1}, {5,0}} {{3.8517056846571536,2.4305708556260548}} wnTs[0]=0.684396 {{1,4}, {0,5}, {5,0}, {5,4}}
 debugShowCubicLineIntersection wtTs[0]=0.320104156 {{0,5}, {4,5}, {4,1}, {5,0}} {{2.7756498612431599,4.0000000000000018}} wnTs[0]=0.556088 {{5,4}, {1,4}}
 debugShowCubicLineIntersection wtTs[0]=0 {{1,4}, {0,5}, {5,0}, {5,4}} {{0.99999999999999978,4}} wnTs[0]=0.8 {{5,0}, {0,5}}
 debugShowLineIntersection no intersect {{5,0}, {0,5}} {{5,4}, {1,4}}
 debugShowCubicIntersection no self intersect {{1,4}, {0,5}, {5,0}, {5,4}}
 debugShowCubicLineIntersection wtTs[0]=0 {{1,4}, {0,5}, {5,0}, {5,4}} {{1,4}} wtTs[1]=0.2 {{1.0320000000000003,4.0000000000000009}} wtTs[2]=1 {{5,4}} wnTs[0]=1 {{5,4}, {1,4}} wnTs[1]=0.992 wnTs[2]=0
 debugShowActiveSpans id=1 (0,5 4,5 4,1 5,0) t=0 (0,5) tEnd=0.320104156 other=2 otherT=1 otherIndex=2 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,5 4,5 4,1 5,0) t=0.320104156 (2.77564979,4) tEnd=0.565184359 other=4 otherT=0.556087535 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,5 4,5 4,1 5,0) t=0.565184359 (3.85170579,2.43057084) tEnd=1 other=3 otherT=0.684395636 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=2 (5,0 0,5) t=0 (5,0) tEnd=0.8 other=1 otherT=1 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=2 (5,0 0,5) t=0.8 (1,4) tEnd=1 other=3 otherT=0 otherIndex=0 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (1,4 0,5 5,0 5,4) t=0 (1,4) tEnd=0.2 other=2 otherT=0.8 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (1,4 0,5 5,0 5,4) t=0 (1,4) tEnd=0.2 other=4 otherT=1 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (1,4 0,5 5,0 5,4) t=0.2 (1.03199995,4) tEnd=0.684395636 other=4 otherT=0.992 otherIndex=2 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (1,4 0,5 5,0 5,4) t=0.684395636 (3.85170579,2.43057084) tEnd=1 other=1 otherT=0.565184359 otherIndex=2 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=4 (5,4 1,4) t=0 (5,4) tEnd=0.556087535 other=3 otherT=1 otherIndex=4 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=4 (5,4 1,4) t=0.556087535 (2.77564979,4) tEnd=0.992 other=1 otherT=0.320104156 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=4 (5,4 1,4) t=0.992 (1.03199995,4) tEnd=1 other=3 otherT=0.2 otherIndex=2 windSum=? windValue=1 oppValue=0
 findTop debugShowSort contourWinding=0 oppContourWinding=0 sign=-1
 debugShowSort [0] {{5,0}, {0,5}} tStart=0 tEnd=0.8 sign=-1 windValue=1 windSum=? 0->1 (max=1) done=0 tiny=0 opp=0
 debugShowSort [1] {{0,5}, {4,5}, {4,1}, {5,0}} tStart=1 tEnd=0.565184359 sign=1 windValue=1 windSum=? 1->0 (max=1) done=0 tiny=0 opp=0
 markWinding id=2 (5,0 0,5) t=0 [0] (5,0) tEnd=0.8 newWindSum=1 newOppSum=0 oppSum=? windSum=? windValue=1
 markWinding id=1 (0,5 4,5 4,1 5,0) t=0.565184359 [2] (3.85170579,2.43057084) tEnd=1 newWindSum=1 newOppSum=0 oppSum=? windSum=? windValue=1
 markWinding id=2 (5,0 0,5) t=0 [0] (5,0) tEnd=0.8 newWindSum=1 newOppSum=0 oppSum=0 windSum=1 windValue=1
 activeOp op=union miFrom=1 miTo=0 suFrom=0 suTo=0 result=1
 findNextOp simple
 markDoneBinary id=2 (5,0 0,5) t=0 [0] (5,0) tEnd=0.8 newWindSum=1 newOppSum=0 oppSum=0 windSum=1 windValue=1
 bridgeOp current id=2 from=(1,4) to=(5,0)
 findNextOp debugShowSort contourWinding=0 oppContourWinding=0 sign=-1
 debugShowSort [1] {{0,5}, {4,5}, {4,1}, {5,0}} tStart=0.565184359 tEnd=1 sign=-1 windValue=1 windSum=1 0->1 (max=1) done=0 tiny=0 opp=0
 debugShowSort [2] {{1,4}, {0,5}, {5,0}, {5,4}} tStart=0.684395636 tEnd=0.2 sign=1 windValue=1 windSum=? 0->-1 (max=-1) done=0 tiny=0 opp=1
 debugShowSort [3] {{0,5}, {4,5}, {4,1}, {5,0}} tStart=0.565184359 tEnd=0.320104156 sign=1 windValue=1 windSum=? 1->0 (max=1) done=0 tiny=0 opp=0
 debugShowSort [0] {{1,4}, {0,5}, {5,0}, {5,4}} tStart=0.684395636 tEnd=1 sign=-1 windValue=1 windSum=? -1->0 (max=-1) done=0 tiny=0 opp=1
 findNextOp firstIndex=[1] sign=-1
 activeOp op=union miFrom=1 miTo=1 suFrom=0 suTo=1 result=0
 markDoneBinary id=3 (1,4 0,5 5,0 5,4) t=0.2 [2] (1.03199995,4) tEnd=0.684395636 newWindSum=-1 newOppSum=1 oppSum=? windSum=? windValue=1
 findNextOp chase.append id=3
 activeOp op=union miFrom=1 miTo=0 suFrom=1 suTo=1 result=0
 markDoneBinary id=1 (0,5 4,5 4,1 5,0) t=0.320104156 [1] (2.77564979,4) tEnd=0.565184359 newWindSum=1 newOppSum=-1 oppSum=? windSum=? windValue=1
 findNextOp chase.append id=1
 activeOp op=union miFrom=0 miTo=0 suFrom=1 suTo=0 result=1
 markWinding id=3 (1,4 0,5 5,0 5,4) t=0.684395636 [3] (3.85170579,2.43057084) tEnd=1 newWindSum=-1 newOppSum=0 oppSum=? windSum=? windValue=1
 markWinding id=4 (5,4 1,4) t=0 [0] (5,4) tEnd=0.556087535 newWindSum=-1 newOppSum=0 oppSum=? windSum=? windValue=1
 findNextOp chase.append id=4
 markDoneBinary id=1 (0,5 4,5 4,1 5,0) t=0.565184359 [2] (3.85170579,2.43057084) tEnd=1 newWindSum=1 newOppSum=0 oppSum=0 windSum=1 windValue=1
 findNextOp from:[1] to:[3] start=3 end=4
 bridgeOp current id=1 from=(5,0) to=(3.85170579,2.43057084)
 path.moveTo(1,4);
 path.lineTo(5,0);
 path.cubicTo(4.56518459,0.434815645, 4.31943321,1.43682528, 3.85170579,2.43057084);
 findNextOp simple
 markDoneBinary id=3 (1,4 0,5 5,0 5,4) t=0.684395636 [3] (3.85170579,2.43057084) tEnd=1 newWindSum=-1 newOppSum=0 oppSum=0 windSum=-1 windValue=1
 bridgeOp current id=3 from=(3.85170579,2.43057084) to=(5,4)
 path.cubicTo(4.50196934,2.37162018, 5,2.73758245, 5,4);
 findNextOp debugShowSort contourWinding=0 oppContourWinding=0 sign=1
 debugShowSort [3] {{5,4}, {1,4}} tStart=0.556087535 tEnd=0 sign=1 windValue=1 windSum=-1 0->-1 (max=-1) done=0 tiny=0 opp=0
 debugShowSort [0] {{0,5}, {4,5}, {4,1}, {5,0}} tStart=0.320104156 tEnd=0.565184359 sign=-1 windValue=1 windSum=1 0->1 (max=1) done=1 tiny=0 opp=1
 debugShowSort [1] {{5,4}, {1,4}} tStart=0.556087535 tEnd=0.992 sign=-1 windValue=1 windSum=? -1->0 (max=-1) done=0 tiny=0 opp=0
 debugShowSort [2] {{0,5}, {4,5}, {4,1}, {5,0}} tStart=0.320104156 tEnd=0 sign=1 windValue=1 windSum=? 1->0 (max=1) done=0 tiny=0 opp=1
 findNextOp firstIndex=[3] sign=1
 activeOp op=union miFrom=0 miTo=1 suFrom=1 suTo=1 result=0
 activeOp op=union miFrom=1 miTo=1 suFrom=1 suTo=0 result=0
 markDoneBinary id=4 (5,4 1,4) t=0.556087535 [1] (2.77564979,4) tEnd=0.992 newWindSum=-1 newOppSum=1 oppSum=? windSum=? windValue=1
 findNextOp chase.append id=4
 activeOp op=union miFrom=1 miTo=0 suFrom=0 suTo=0 result=1
 markWinding id=1 (0,5 4,5 4,1 5,0) t=0 [0] (0,5) tEnd=0.320104156 newWindSum=1 newOppSum=0 oppSum=? windSum=? windValue=1
 markWinding id=2 (5,0 0,5) t=0.8 [1] (1,4) tEnd=1 newWindSum=1 newOppSum=0 oppSum=? windSum=? windValue=1
 findNextOp chase.append id=2
 markDoneBinary id=4 (5,4 1,4) t=0 [0] (5,4) tEnd=0.556087535 newWindSum=-1 newOppSum=0 oppSum=0 windSum=-1 windValue=1
 findNextOp from:[4] to:[1] start=1 end=0
 bridgeOp current id=4 from=(5,4) to=(2.77564979,4)
 findNextOp simple
 markDoneBinary id=1 (0,5 4,5 4,1 5,0) t=0 [0] (0,5) tEnd=0.320104156 newWindSum=1 newOppSum=0 oppSum=0 windSum=1 windValue=1
 bridgeOp current id=1 from=(2.77564979,4) to=(0,5)
 path.lineTo(2.77564979,4);
 path.cubicTo(2.15096664,4.59013319, 1.28041661,5, 0,5);
 findNextOp debugShowSort contourWinding=0 oppContourWinding=0 sign=-1
 debugShowSort [1] {{5,0}, {0,5}} tStart=0.8 tEnd=1 sign=-1 windValue=1 windSum=1 0->1 (max=1) done=0 tiny=0 opp=0
 debugShowSort [2] {{1,4}, {0,5}, {5,0}, {5,4}} tStart=0 tEnd=0.2 sign=-1 windValue=1 windSum=? 0->1 (max=1) done=0 tiny=0 opp=1
 debugShowSort [0] {{5,0}, {0,5}} tStart=0.8 tEnd=0 sign=1 windValue=1 windSum=1 1->0 (max=1) done=1 tiny=0 opp=0
 findNextOp firstIndex=[1] sign=-1
 activeOp op=union miFrom=1 miTo=1 suFrom=0 suTo=1 result=0
 markDoneBinary id=3 (1,4 0,5 5,0 5,4) t=0 [0] (1,4) tEnd=0 newWindSum=1 newOppSum=1 oppSum=? windSum=? windValue=1
 markDoneBinary id=3 (1,4 0,5 5,0 5,4) t=0 [1] (1,4) tEnd=0.2 newWindSum=1 newOppSum=1 oppSum=? windSum=? windValue=1
 findNextOp chase.append id=3
 activeOp op=union miFrom=1 miTo=0 suFrom=1 suTo=1 result=0
 markDoneBinary id=2 (5,0 0,5) t=0.8 [1] (1,4) tEnd=1 newWindSum=1 newOppSum=0 oppSum=0 windSum=1 windValue=1
 ../../src/pathops/SkPathOpsOp.cpp:183: failed assertion "unsortable"
 </div>

 <div id="cubicOp68ua">
   RunTestSet [cubicOp68u]
 {{0,5}, {4,5}, {4,1}, {5,0}},
 {{5,0}, {0,5}},
 op union
 {{1,4}, {0,5}, {5,0}, {5,4}},
 {{5,4}, {1,4}},
 debugShowCubicIntersection no self intersect {{0,5}, {4,5}, {4,1}, {5,0}}
 debugShowCubicLineIntersection wtTs[0]=0 {{0,5}, {4,5}, {4,1}, {5,0}} {{0,5}} wtTs[1]=1 {{5,0}} wnTs[0]=1 {{5,0}, {0,5}} wnTs[1]=0
 debugShowCubicIntersection wtTs[0]=0.565184359 {{0,5}, {4,5}, {4,1}, {5,0}} {{3.851705684657154,2.4305708556260521}} wnTs[0]=0.684396 {{1,4}, {0,5}, {5,0}, {5,4}}
 debugShowCubicLineIntersection wtTs[0]=0.320104156 {{0,5}, {4,5}, {4,1}, {5,0}} {{2.7756498612431599,4.0000000000000018}} wnTs[0]=0.556088 {{5,4}, {1,4}}
 debugShowCubicLineIntersection wtTs[0]=0 {{1,4}, {0,5}, {5,0}, {5,4}} {{0.99999999999999978,4}} wnTs[0]=0.8 {{5,0}, {0,5}}
 debugShowLineIntersection wtTs[0]=0.8 {{5,0}, {0,5}} {{0.99999999999999978,4}} wnTs[0]=1 {{5,4}, {1,4}}
 debugShowCubicIntersection no self intersect {{1,4}, {0,5}, {5,0}, {5,4}}
 debugShowCubicLineIntersection wtTs[0]=0 {{1,4}, {0,5}, {5,0}, {5,4}} {{1,4}} wtTs[1]=0.2 {{1.0320000000000003,4.0000000000000009}} wtTs[2]=1 {{5,4}} wnTs[0]=1 {{5,4}, {1,4}} wnTs[1]=0.992 wnTs[2]=0
 debugShowActiveSpans id=1 (0,5 4,5 4,1 5,0) t=0 (0,5) tEnd=0.320104156 other=2 otherT=1 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,5 4,5 4,1 5,0) t=0.320104156 (2.77564979,4) tEnd=0.565184359 other=4 otherT=0.556087535 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,5 4,5 4,1 5,0) t=0.565184359 (3.85170579,2.43057084) tEnd=1 other=3 otherT=0.684395636 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=2 (5,0 0,5) t=0 (5,0) tEnd=0.8 other=1 otherT=1 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=2 (5,0 0,5) t=0.8 (1,4) tEnd=1 other=3 otherT=0 otherIndex=0 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=2 (5,0 0,5) t=0.8 (1,4) tEnd=1 other=4 otherT=1 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (1,4 0,5 5,0 5,4) t=0 (1,4) tEnd=0.2 other=2 otherT=0.8 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (1,4 0,5 5,0 5,4) t=0 (1,4) tEnd=0.2 other=4 otherT=1 otherIndex=4 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (1,4 0,5 5,0 5,4) t=0.2 (1.03199995,4) tEnd=0.684395636 other=4 otherT=0.992 otherIndex=2 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (1,4 0,5 5,0 5,4) t=0.684395636 (3.85170579,2.43057084) tEnd=1 other=1 otherT=0.565184359 otherIndex=2 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=4 (5,4 1,4) t=0 (5,4) tEnd=0.556087535 other=3 otherT=1 otherIndex=4 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=4 (5,4 1,4) t=0.556087535 (2.77564979,4) tEnd=0.992 other=1 otherT=0.320104156 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=4 (5,4 1,4) t=0.992 (1.03199995,4) tEnd=1 other=3 otherT=0.2 otherIndex=2 windSum=? windValue=1 oppValue=0
 findTop debugShowSort contourWinding=0 oppContourWinding=0 sign=-1
 debugShowSort [0] {{5,0}, {0,5}} tStart=0 tEnd=0.8 sign=-1 windValue=1 windSum=? 0->1 (max=1) done=0 tiny=0 opp=0
 debugShowSort [1] {{0,5}, {4,5}, {4,1}, {5,0}} tStart=1 tEnd=0.565184359 sign=1 windValue=1 windSum=? 1->0 (max=1) done=0 tiny=0 opp=0
 markWinding id=2 (5,0 0,5) t=0 [0] (5,0) tEnd=0.8 newWindSum=1 newOppSum=0 oppSum=? windSum=? windValue=1
 markWinding id=1 (0,5 4,5 4,1 5,0) t=0.565184359 [2] (3.85170579,2.43057084) tEnd=1 newWindSum=1 newOppSum=0 oppSum=? windSum=? windValue=1
 markWinding id=2 (5,0 0,5) t=0 [0] (5,0) tEnd=0.8 newWindSum=1 newOppSum=0 oppSum=0 windSum=1 windValue=1
 activeOp op=union miFrom=1 miTo=0 suFrom=0 suTo=0 result=1
 findNextOp simple
 markDoneBinary id=2 (5,0 0,5) t=0 [0] (5,0) tEnd=0.8 newWindSum=1 newOppSum=0 oppSum=0 windSum=1 windValue=1
 bridgeOp current id=2 from=(1,4) to=(5,0)
 findNextOp debugShowSort contourWinding=0 oppContourWinding=0 sign=-1
 debugShowSort [1] {{0,5}, {4,5}, {4,1}, {5,0}} tStart=0.565184359 tEnd=1 sign=-1 windValue=1 windSum=1 0->1 (max=1) done=0 tiny=0 opp=0
 debugShowSort [2] {{1,4}, {0,5}, {5,0}, {5,4}} tStart=0.684395636 tEnd=0.2 sign=1 windValue=1 windSum=? 0->-1 (max=-1) done=0 tiny=0 opp=1
 debugShowSort [3] {{0,5}, {4,5}, {4,1}, {5,0}} tStart=0.565184359 tEnd=0.320104156 sign=1 windValue=1 windSum=? 1->0 (max=1) done=0 tiny=0 opp=0
 debugShowSort [0] {{1,4}, {0,5}, {5,0}, {5,4}} tStart=0.684395636 tEnd=1 sign=-1 windValue=1 windSum=? -1->0 (max=-1) done=0 tiny=0 opp=1
 findNextOp firstIndex=[1] sign=-1
 activeOp op=union miFrom=1 miTo=1 suFrom=0 suTo=1 result=0
 markDoneBinary id=3 (1,4 0,5 5,0 5,4) t=0.2 [2] (1.03199995,4) tEnd=0.684395636 newWindSum=-1 newOppSum=1 oppSum=? windSum=? windValue=1
 findNextOp chase.append id=3
 activeOp op=union miFrom=1 miTo=0 suFrom=1 suTo=1 result=0
 markDoneBinary id=1 (0,5 4,5 4,1 5,0) t=0.320104156 [1] (2.77564979,4) tEnd=0.565184359 newWindSum=1 newOppSum=-1 oppSum=? windSum=? windValue=1
 findNextOp chase.append id=1
 activeOp op=union miFrom=0 miTo=0 suFrom=1 suTo=0 result=1
 markWinding id=3 (1,4 0,5 5,0 5,4) t=0.684395636 [3] (3.85170579,2.43057084) tEnd=1 newWindSum=-1 newOppSum=0 oppSum=? windSum=? windValue=1
 markWinding id=4 (5,4 1,4) t=0 [0] (5,4) tEnd=0.556087535 newWindSum=-1 newOppSum=0 oppSum=? windSum=? windValue=1
 findNextOp chase.append id=4
 markDoneBinary id=1 (0,5 4,5 4,1 5,0) t=0.565184359 [2] (3.85170579,2.43057084) tEnd=1 newWindSum=1 newOppSum=0 oppSum=0 windSum=1 windValue=1
 findNextOp from:[1] to:[3] start=3 end=4
 bridgeOp current id=1 from=(5,0) to=(3.85170579,2.43057084)
 path.moveTo(1,4);
 path.lineTo(5,0);
 path.cubicTo(4.56518459,0.434815645, 4.31943321,1.43682528, 3.85170579,2.43057084);
 findNextOp simple
 markDoneBinary id=3 (1,4 0,5 5,0 5,4) t=0.684395636 [3] (3.85170579,2.43057084) tEnd=1 newWindSum=-1 newOppSum=0 oppSum=0 windSum=-1 windValue=1
 bridgeOp current id=3 from=(3.85170579,2.43057084) to=(5,4)
 path.cubicTo(4.50196934,2.37162018, 5,2.73758245, 5,4);
 findNextOp debugShowSort contourWinding=0 oppContourWinding=0 sign=1
 debugShowSort [3] {{5,4}, {1,4}} tStart=0.556087535 tEnd=0 sign=1 windValue=1 windSum=-1 0->-1 (max=-1) done=0 tiny=0 opp=0
 debugShowSort [0] {{0,5}, {4,5}, {4,1}, {5,0}} tStart=0.320104156 tEnd=0.565184359 sign=-1 windValue=1 windSum=1 0->1 (max=1) done=1 tiny=0 opp=1
 debugShowSort [1] {{5,4}, {1,4}} tStart=0.556087535 tEnd=0.992 sign=-1 windValue=1 windSum=? -1->0 (max=-1) done=0 tiny=0 opp=0
 debugShowSort [2] {{0,5}, {4,5}, {4,1}, {5,0}} tStart=0.320104156 tEnd=0 sign=1 windValue=1 windSum=? 1->0 (max=1) done=0 tiny=0 opp=1
 findNextOp firstIndex=[3] sign=1
 activeOp op=union miFrom=0 miTo=1 suFrom=1 suTo=1 result=0
 activeOp op=union miFrom=1 miTo=1 suFrom=1 suTo=0 result=0
 markDoneBinary id=4 (5,4 1,4) t=0.556087535 [1] (2.77564979,4) tEnd=0.992 newWindSum=-1 newOppSum=1 oppSum=? windSum=? windValue=1
 findNextOp chase.append id=4
 activeOp op=union miFrom=1 miTo=0 suFrom=0 suTo=0 result=1
 markWinding id=1 (0,5 4,5 4,1 5,0) t=0 [0] (0,5) tEnd=0.320104156 newWindSum=1 newOppSum=0 oppSum=? windSum=? windValue=1
 markWinding id=2 (5,0 0,5) t=0.8 [1] (1,4) tEnd=0.8 newWindSum=1 newOppSum=0 oppSum=? windSum=? windValue=1
 markWinding id=2 (5,0 0,5) t=0.8 [2] (1,4) tEnd=1 newWindSum=1 newOppSum=0 oppSum=? windSum=? windValue=1
 findNextOp chase.append id=2
 markDoneBinary id=4 (5,4 1,4) t=0 [0] (5,4) tEnd=0.556087535 newWindSum=-1 newOppSum=0 oppSum=0 windSum=-1 windValue=1
 findNextOp from:[4] to:[1] start=1 end=0
 bridgeOp current id=4 from=(5,4) to=(2.77564979,4)
 findNextOp simple
 markDoneBinary id=1 (0,5 4,5 4,1 5,0) t=0 [0] (0,5) tEnd=0.320104156 newWindSum=1 newOppSum=0 oppSum=0 windSum=1 windValue=1
 bridgeOp current id=1 from=(2.77564979,4) to=(0,5)
 path.lineTo(2.77564979,4);
 path.cubicTo(2.15096664,4.59013319, 1.28041661,5, 0,5);
 findNextOp debugShowSort contourWinding=0 oppContourWinding=0 sign=-1
 debugShowSort [1] {{5,0}, {0,5}} tStart=0.8 tEnd=1 sign=-1 windValue=1 windSum=1 0->1 (max=1) done=0 tiny=0 opp=0
 debugShowSort [2] {{1,4}, {0,5}, {5,0}, {5,4}} tStart=0 tEnd=0.2 sign=-1 windValue=1 windSum=? 0->1 (max=1) done=0 tiny=0 opp=1
 debugShowSort [3] {{5,4}, {1,4}} tStart=1 tEnd=0.992 sign=1 windValue=1 windSum=? 1->0 (max=1) done=0 tiny=0 opp=1
 debugShowSort [0] {{5,0}, {0,5}} tStart=0.8 tEnd=0 sign=1 windValue=1 windSum=1 1->0 (max=1) done=1 tiny=0 opp=0
 findNextOp firstIndex=[1] sign=-1
 activeOp op=union miFrom=1 miTo=1 suFrom=0 suTo=1 result=0
 markDoneBinary id=3 (1,4 0,5 5,0 5,4) t=0 [0] (1,4) tEnd=0 newWindSum=1 newOppSum=1 oppSum=? windSum=? windValue=1
 markDoneBinary id=3 (1,4 0,5 5,0 5,4) t=0 [1] (1,4) tEnd=0.2 newWindSum=1 newOppSum=1 oppSum=? windSum=? windValue=1
 findNextOp chase.append id=3
 activeOp op=union miFrom=1 miTo=1 suFrom=1 suTo=0 result=0
 markDoneBinary id=4 (5,4 1,4) t=0.992 [2] (1.03199995,4) tEnd=1 newWindSum=1 newOppSum=1 oppSum=? windSum=? windValue=1
 findNextOp chase.append id=4
 activeOp op=union miFrom=1 miTo=0 suFrom=0 suTo=0 result=1
 markDoneBinary id=2 (5,0 0,5) t=0.8 [1] (1,4) tEnd=0.8 newWindSum=1 newOppSum=0 oppSum=0 windSum=1 windValue=1
 markDoneBinary id=2 (5,0 0,5) t=0.8 [2] (1,4) tEnd=1 newWindSum=1 newOppSum=0 oppSum=0 windSum=1 windValue=1
 findNextOp from:[2] to:[2] start=2 end=0
 bridgeOp current id=2 from=(0,5) to=(1,4)
 path.lineTo(1,4);
 path.close();
 </div>

 <div id="cubicOp69d">
   RunTestSet [cubicOp69d]
 {{1,3}, {0,1}, {3,1}, {2,0}},
 {{2,0}, {1,3}},
 op difference
 {{1,3}, {0,2}, {3,1}, {1,0}},
 {{1,0}, {1,3}},
 debugShowCubicIntersection no self intersect {{1,3}, {0,2}, {3,1}, {1,0}}
 debugShowCubicLineIntersection wtTs[0]=0 {{1,3}, {0,2}, {3,1}, {1,0}} {{1,3}} wtTs[1]=0.333333333 {{1.0000000000000002,2.0000000000000004}} wtTs[2]=1 {{1,0}} wnTs[0]=1 {{1,0}, {1,3}} wnTs[1]=0.666666667 wnTs[2]=0
 debugShowCubicIntersection wtTs[0]=0 {{1,3}, {0,2}, {3,1}, {1,0}} {{1,3}} wtTs[1]=0.195806707 {{0.80509754536484868,2.412579877819526}} wtTs[2]=0.665291365 {{1.6652800396786596,1.0041259050152926}} wnTs[0]=0 {{1,3}, {0,1}, {3,1}, {2,0}} wnTs[1]=0.109171117 wnTs[2]=0.555550487
 debugShowCubicLineIntersection wtTs[0]=0 {{1,3}, {0,2}, {3,1}, {1,0}} {{1,3}} wtTs[1]=0.666666667 {{1.6666666666666665,1.0000000000000002}} wnTs[0]=1 {{2,0}, {1,3}} wnTs[1]=0.333333333
 debugShowCubicLineIntersection wtTs[0]=0 {{1,3}, {0,1}, {3,1}, {2,0}} {{1,3}} wtTs[1]=0.316987298 {{1,1.6054083424670758}} wnTs[0]=1 {{1,0}, {1,3}} wnTs[1]=0.535136114
 debugShowLineIntersection wtTs[0]=1 {{1,0}, {1,3}} {{1,3}} wnTs[0]=1 {{2,0}, {1,3}}
 debugShowCubicIntersection no self intersect {{1,3}, {0,1}, {3,1}, {2,0}}
 debugShowCubicLineIntersection wtTs[0]=0 {{1,3}, {0,1}, {3,1}, {2,0}} {{1,3}} wtTs[1]=0.555555556 {{1.6652949245541837,1.0041152263374487}} wtTs[2]=1 {{2,0}} wnTs[0]=1 {{2,0}, {1,3}} wnTs[1]=0.334705075 wnTs[2]=0
 debugShowActiveSpans id=3 (1,3 0,2 3,1 1,0) t=0 (1,3) tEnd=0.195806707 other=4 otherT=1 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (1,3 0,2 3,1 1,0) t=0 (1,3) tEnd=0.195806707 other=1 otherT=0 otherIndex=0 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (1,3 0,2 3,1 1,0) t=0 (1,3) tEnd=0.195806707 other=2 otherT=1 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (1,3 0,2 3,1 1,0) t=0.195806707 (0.80509752,2.41257977) tEnd=0.333333333 other=1 otherT=0.109171117 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (1,3 0,2 3,1 1,0) t=0.333333333 (1,2) tEnd=0.665291365 other=4 otherT=0.666666667 otherIndex=2 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (1,3 0,2 3,1 1,0) t=0.665291365 (1.66527998,1.00412595) tEnd=0.666666667 other=1 otherT=0.555550487 otherIndex=5 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (1,3 0,2 3,1 1,0) t=0.666666667 (1.66666663,1) tEnd=1 other=2 otherT=0.333333333 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=4 (1,0 1,3) t=0 (1,0) tEnd=0.535136114 other=3 otherT=1 otherIndex=7 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=4 (1,0 1,3) t=0.535136114 (1,1.60540831) tEnd=0.666666667 other=1 otherT=0.316987298 otherIndex=4 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=4 (1,0 1,3) t=0.666666667 (1,2) tEnd=1 other=3 otherT=0.333333333 otherIndex=4 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (1,3 0,1 3,1 2,0) t=0 (1,3) tEnd=0.109171117 other=3 otherT=0 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (1,3 0,1 3,1 2,0) t=0 (1,3) tEnd=0.109171117 other=4 otherT=1 otherIndex=4 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (1,3 0,1 3,1 2,0) t=0 (1,3) tEnd=0.109171117 other=2 otherT=1 otherIndex=5 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (1,3 0,1 3,1 2,0) t=0.109171117 (0.80509752,2.41257977) tEnd=0.316987298 other=3 otherT=0.195806707 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (1,3 0,1 3,1 2,0) t=0.316987298 (1,1.60540831) tEnd=0.555550487 other=4 otherT=0.535136114 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (1,3 0,1 3,1 2,0) t=0.555550487 (1.66527998,1.00412595) tEnd=0.555555556 other=3 otherT=0.665291365 otherIndex=5 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (1,3 0,1 3,1 2,0) t=0.555555556 (1.66529489,1.00411522) tEnd=1 other=2 otherT=0.334705075 otherIndex=2 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=2 (2,0 1,3) t=0 (2,0) tEnd=0.333333333 other=1 otherT=1 otherIndex=7 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=2 (2,0 1,3) t=0.333333333 (1.66666663,1) tEnd=0.334705075 other=3 otherT=0.666666667 otherIndex=6 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=2 (2,0 1,3) t=0.334705075 (1.66529489,1.00411522) tEnd=1 other=1 otherT=0.555555556 otherIndex=6 windSum=? windValue=1 oppValue=0
 findTop debugShowSort contourWinding=0 oppContourWinding=0 sign=-1
 debugShowSort [0] {{1,0}, {1,3}} tStart=0 tEnd=0.535136114 sign=-1 windValue=1 windSum=? 0->1 (max=1) done=0 tiny=0 opp=0
 debugShowSort [1] {{1,3}, {0,2}, {3,1}, {1,0}} tStart=1 tEnd=0.666666667 sign=1 windValue=1 windSum=? 1->0 (max=1) done=0 tiny=0 opp=0
 markWinding id=4 (1,0 1,3) t=0 [0] (1,0) tEnd=0.535136114 newWindSum=1 newOppSum=0 oppSum=? windSum=? windValue=1
 markWinding id=3 (1,3 0,2 3,1 1,0) t=0.666666667 [6] (1.66666663,1) tEnd=1 newWindSum=1 newOppSum=0 oppSum=? windSum=? windValue=1
 markWinding id=4 (1,0 1,3) t=0 [0] (1,0) tEnd=0.535136114 newWindSum=1 newOppSum=0 oppSum=0 windSum=1 windValue=1
 activeOp op=diff miFrom=0 miTo=0 suFrom=1 suTo=0 result=0
 markDoneBinary id=4 (1,0 1,3) t=0 [0] (1,0) tEnd=0.535136114 newWindSum=1 newOppSum=0 oppSum=0 windSum=1 windValue=1
 markDoneBinary id=3 (1,3 0,2 3,1 1,0) t=0.666666667 [6] (1.66666663,1) tEnd=1 newWindSum=1 newOppSum=0 oppSum=0 windSum=1 windValue=1
 </div>

 <div id="cubicOp69da">
   RunTestSet [cubicOp69da]
 {{1,3}, {0,1}, {3,1}, {2,0}},
 {{2,0}, {1,3}},
 op difference
 {{1,3}, {0,2}, {3,1}, {1,0}},
 {{1,0}, {1,3}},
 debugShowCubicIntersection no self intersect {{1,3}, {0,2}, {3,1}, {1,0}}
 debugShowCubicLineIntersection wtTs[0]=0 {{1,3}, {0,2}, {3,1}, {1,0}} {{1,3}} wtTs[1]=0.333333333 {{1,2.0000000000000004}} wtTs[2]=1 {{1,0}} wnTs[0]=1 {{1,0}, {1,3}} wnTs[1]=0.666666667 wnTs[2]=0
 debugShowCubicIntersection wtTs[0]=0 {{1,3}, {0,2}, {3,1}, {1,0}} {{1,3}} wtTs[1]=0.195806707 {{0.80509754536484845,2.4125798778195251}} wtTs[2]=0.665291365 {{1.6652800396786593,1.0041259050152929}} wnTs[0]=0 {{1,3}, {0,1}, {3,1}, {2,0}} wnTs[1]=0.109171117 wnTs[2]=0.555550487
 debugShowCubicLineIntersection wtTs[0]=0 {{1,3}, {0,2}, {3,1}, {1,0}} {{1,3}} wtTs[1]=0.666666667 {{1.6666666666666667,1}} wnTs[0]=1 {{2,0}, {1,3}} wnTs[1]=0.333333333
 debugShowCubicLineIntersection wtTs[0]=0 {{1,3}, {0,1}, {3,1}, {2,0}} {{1,3}} wtTs[1]=0.316987298 {{1,1.6054083424670758}} wnTs[0]=1 {{1,0}, {1,3}} wnTs[1]=0.535136114
 debugShowLineIntersection wtTs[0]=1 {{1,0}, {1,3}} {{1,3}} wnTs[0]=1 {{2,0}, {1,3}}
 debugShowCubicIntersection no self intersect {{1,3}, {0,1}, {3,1}, {2,0}}
 debugShowCubicLineIntersection wtTs[0]=0 {{1,3}, {0,1}, {3,1}, {2,0}} {{1,3}} wtTs[1]=0.555555556 {{1.6652949245541839,1.0041152263374484}} wtTs[2]=1 {{2,0}} wnTs[0]=1 {{2,0}, {1,3}} wnTs[1]=0.334705075 wnTs[2]=0
 debugShowActiveSpans id=3 (1,3 0,2 3,1 1,0) t=0 (1,3) tEnd=0.195806707 other=4 otherT=1 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (1,3 0,2 3,1 1,0) t=0 (1,3) tEnd=0.195806707 other=1 otherT=0 otherIndex=0 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (1,3 0,2 3,1 1,0) t=0 (1,3) tEnd=0.195806707 other=2 otherT=1 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (1,3 0,2 3,1 1,0) t=0.195806707 (0.80509752,2.41257977) tEnd=0.333333333 other=1 otherT=0.109171117 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (1,3 0,2 3,1 1,0) t=0.333333333 (1,2) tEnd=0.665291365 other=4 otherT=0.666666667 otherIndex=2 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (1,3 0,2 3,1 1,0) t=0.665291365 (1.66527998,1.00412595) tEnd=0.666666667 other=1 otherT=0.555550487 otherIndex=5 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (1,3 0,2 3,1 1,0) t=0.666666667 (1.66666663,1) tEnd=1 other=2 otherT=0.333333333 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=4 (1,0 1,3) t=0 (1,0) tEnd=0.535136114 other=3 otherT=1 otherIndex=7 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=4 (1,0 1,3) t=0.535136114 (1,1.60540831) tEnd=0.666666667 other=1 otherT=0.316987298 otherIndex=4 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=4 (1,0 1,3) t=0.666666667 (1,2) tEnd=1 other=3 otherT=0.333333333 otherIndex=4 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (1,3 0,1 3,1 2,0) t=0 (1,3) tEnd=0.109171117 other=3 otherT=0 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (1,3 0,1 3,1 2,0) t=0 (1,3) tEnd=0.109171117 other=4 otherT=1 otherIndex=4 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (1,3 0,1 3,1 2,0) t=0 (1,3) tEnd=0.109171117 other=2 otherT=1 otherIndex=5 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (1,3 0,1 3,1 2,0) t=0.109171117 (0.80509752,2.41257977) tEnd=0.316987298 other=3 otherT=0.195806707 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (1,3 0,1 3,1 2,0) t=0.316987298 (1,1.60540831) tEnd=0.555550487 other=4 otherT=0.535136114 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (1,3 0,1 3,1 2,0) t=0.555550487 (1.66527998,1.00412595) tEnd=0.555555556 other=3 otherT=0.665291365 otherIndex=5 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (1,3 0,1 3,1 2,0) t=0.555555556 (1.66529489,1.00411522) tEnd=1 other=2 otherT=0.334705075 otherIndex=2 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=2 (2,0 1,3) t=0 (2,0) tEnd=0.333333333 other=1 otherT=1 otherIndex=7 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=2 (2,0 1,3) t=0.333333333 (1.66666663,1) tEnd=0.334705075 other=3 otherT=0.666666667 otherIndex=6 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=2 (2,0 1,3) t=0.334705075 (1.66529489,1.00411522) tEnd=1 other=1 otherT=0.555555556 otherIndex=6 windSum=? windValue=1 oppValue=0
 findTop debugShowSort contourWinding=0 oppContourWinding=0 sign=-1
 debugShowSort [0] {{1,0}, {1,3}} tStart=0 tEnd=0.535136114 sign=-1 windValue=1 windSum=? 0->1 (max=1) done=0 tiny=0 opp=0
 debugShowSort [1] {{1,3}, {0,2}, {3,1}, {1,0}} tStart=1 tEnd=0.666666667 sign=1 windValue=1 windSum=? 1->0 (max=1) done=0 tiny=0 opp=0
 markWinding id=4 (1,0 1,3) t=0 [0] (1,0) tEnd=0.535136114 newWindSum=1 newOppSum=0 oppSum=? windSum=? windValue=1
 markWinding id=3 (1,3 0,2 3,1 1,0) t=0.666666667 [6] (1.66666663,1) tEnd=1 newWindSum=1 newOppSum=0 oppSum=? windSum=? windValue=1
 markWinding id=4 (1,0 1,3) t=0 [0] (1,0) tEnd=0.535136114 newWindSum=1 newOppSum=0 oppSum=0 windSum=1 windValue=1
 activeOp op=diff miFrom=0 miTo=0 suFrom=1 suTo=0 result=0
 markDoneBinary id=4 (1,0 1,3) t=0 [0] (1,0) tEnd=0.535136114 newWindSum=1 newOppSum=0 oppSum=0 windSum=1 windValue=1
 markDoneBinary id=3 (1,3 0,2 3,1 1,0) t=0.666666667 [6] (1.66666663,1) tEnd=1 newWindSum=1 newOppSum=0 oppSum=0 windSum=1 windValue=1
 findChaseOp debugShowSort contourWinding=? oppContourWinding=? sign=1
 debugShowSort [0] {{2,0}, {1,3}} tStart=0.333333333 tEnd=0 sign=1 windValue=1 windSum=? ?->? (max=?) done=0 tiny=0 opp=0
 debugShowSort [1] {{1,3}, {0,2}, {3,1}, {1,0}} tStart=0.666666667 tEnd=1 sign=-1 windValue=1 windSum=1 ?->? (max=?) done=1 tiny=0 opp=1
 debugShowSort [2] {{1,3}, {0,2}, {3,1}, {1,0}} tStart=0.666666667 tEnd=0.665291365 sign=1 windValue=1 windSum=? ?->? (max=?) done=0 tiny=0 opp=1
 debugShowSort [3] {{2,0}, {1,3}} tStart=0.333333333 tEnd=0.334705075 sign=-1 windValue=1 windSum=? ?->? (max=?) done=0 tiny=0 opp=0
 findChaseOp debugShowSort contourWinding=0 oppContourWinding=0 sign=-1
 debugShowSort [1] {{1,3}, {0,2}, {3,1}, {1,0}} tStart=0.666666667 tEnd=1 sign=-1 windValue=1 windSum=1 0->1 (max=1) done=1 tiny=0 opp=0
 debugShowSort [2] {{1,3}, {0,2}, {3,1}, {1,0}} tStart=0.666666667 tEnd=0.665291365 sign=1 windValue=1 windSum=? 1->0 (max=1) done=0 tiny=0 opp=0
 debugShowSort [3] {{2,0}, {1,3}} tStart=0.333333333 tEnd=0.334705075 sign=-1 windValue=1 windSum=? 0->1 (max=1) done=0 tiny=0 opp=1
 debugShowSort [0] {{2,0}, {1,3}} tStart=0.333333333 tEnd=0 sign=1 windValue=1 windSum=? 1->0 (max=1) done=0 tiny=0 opp=1
 markWinding id=3 (1,3 0,2 3,1 1,0) t=0.665291365 [5] (1.66527998,1.00412595) tEnd=0.666666667 newWindSum=1 newOppSum=0 oppSum=? windSum=? windValue=1
 markWinding id=2 (2,0 1,3) t=0.333333333 [1] (1.66666663,1) tEnd=0.334705075 newWindSum=1 newOppSum=0 oppSum=? windSum=? windValue=1
 markWinding id=2 (2,0 1,3) t=0 [0] (2,0) tEnd=0.333333333 newWindSum=1 newOppSum=0 oppSum=? windSum=? windValue=1
 markWinding id=1 (1,3 0,1 3,1 2,0) t=0.555555556 [6] (1.66529489,1.00411522) tEnd=1 newWindSum=1 newOppSum=0 oppSum=? windSum=? windValue=1
 debugShowActiveSpans id=3 (1,3 0,2 3,1 1,0) t=0 (1,3) tEnd=0.195806707 other=4 otherT=1 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (1,3 0,2 3,1 1,0) t=0 (1,3) tEnd=0.195806707 other=1 otherT=0 otherIndex=0 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (1,3 0,2 3,1 1,0) t=0 (1,3) tEnd=0.195806707 other=2 otherT=1 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (1,3 0,2 3,1 1,0) t=0.195806707 (0.80509752,2.41257977) tEnd=0.333333333 other=1 otherT=0.109171117 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (1,3 0,2 3,1 1,0) t=0.333333333 (1,2) tEnd=0.665291365 other=4 otherT=0.666666667 otherIndex=2 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (1,3 0,2 3,1 1,0) t=0.665291365 (1.66527998,1.00412595) tEnd=0.666666667 other=1 otherT=0.555550487 otherIndex=5 windSum=1 windValue=1 oppValue=0
 debugShowActiveSpans id=4 (1,0 1,3) t=0.535136114 (1,1.60540831) tEnd=0.666666667 other=1 otherT=0.316987298 otherIndex=4 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=4 (1,0 1,3) t=0.666666667 (1,2) tEnd=1 other=3 otherT=0.333333333 otherIndex=4 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (1,3 0,1 3,1 2,0) t=0 (1,3) tEnd=0.109171117 other=3 otherT=0 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (1,3 0,1 3,1 2,0) t=0 (1,3) tEnd=0.109171117 other=4 otherT=1 otherIndex=4 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (1,3 0,1 3,1 2,0) t=0 (1,3) tEnd=0.109171117 other=2 otherT=1 otherIndex=5 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (1,3 0,1 3,1 2,0) t=0.109171117 (0.80509752,2.41257977) tEnd=0.316987298 other=3 otherT=0.195806707 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (1,3 0,1 3,1 2,0) t=0.316987298 (1,1.60540831) tEnd=0.555550487 other=4 otherT=0.535136114 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (1,3 0,1 3,1 2,0) t=0.555550487 (1.66527998,1.00412595) tEnd=0.555555556 other=3 otherT=0.665291365 otherIndex=5 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (1,3 0,1 3,1 2,0) t=0.555555556 (1.66529489,1.00411522) tEnd=1 other=2 otherT=0.334705075 otherIndex=2 windSum=1 windValue=1 oppValue=0
 debugShowActiveSpans id=2 (2,0 1,3) t=0 (2,0) tEnd=0.333333333 other=1 otherT=1 otherIndex=7 windSum=1 windValue=1 oppValue=0
 debugShowActiveSpans id=2 (2,0 1,3) t=0.333333333 (1.66666663,1) tEnd=0.334705075 other=3 otherT=0.666666667 otherIndex=6 windSum=1 windValue=1 oppValue=0
 debugShowActiveSpans id=2 (2,0 1,3) t=0.334705075 (1.66529489,1.00411522) tEnd=1 other=1 otherT=0.555555556 otherIndex=6 windSum=? windValue=1 oppValue=0
 activeOp op=diff miFrom=0 miTo=0 suFrom=1 suTo=0 result=0
 markDoneBinary id=3 (1,3 0,2 3,1 1,0) t=0.665291365 [5] (1.66527998,1.00412595) tEnd=0.666666667 newWindSum=1 newOppSum=0 oppSum=0 windSum=1 windValue=1
 findChaseOp debugShowSort contourWinding=? oppContourWinding=? sign=-1
 debugShowSort [0] {{1,3}, {0,1}, {3,1}, {2,0}} tStart=0.555550487 tEnd=0.555555556 sign=-1 windValue=1 windSum=? ?->? (max=?) done=0 tiny=0 opp=0
 debugShowSort [1] {{1,3}, {0,2}, {3,1}, {1,0}} tStart=0.665291365 tEnd=0.666666667 sign=-1 windValue=1 windSum=1 ?->? (max=?) done=1 tiny=0 opp=1
 debugShowSort [2] {{1,3}, {0,1}, {3,1}, {2,0}} tStart=0.555550487 tEnd=0.316987298 sign=1 windValue=1 windSum=? ?->? (max=?) done=0 tiny=0 opp=0
 debugShowSort [3] {{1,3}, {0,2}, {3,1}, {1,0}} tStart=0.665291365 tEnd=0.333333333 sign=1 windValue=1 windSum=? ?->? (max=?) done=0 tiny=0 opp=1
 findChaseOp debugShowSort contourWinding=0 oppContourWinding=0 sign=-1
 debugShowSort [1] {{1,3}, {0,2}, {3,1}, {1,0}} tStart=0.665291365 tEnd=0.666666667 sign=-1 windValue=1 windSum=1 0->1 (max=1) done=1 tiny=0 opp=0
 debugShowSort [2] {{1,3}, {0,1}, {3,1}, {2,0}} tStart=0.555550487 tEnd=0.316987298 sign=1 windValue=1 windSum=? 0->-1 (max=-1) done=0 tiny=0 opp=1
 debugShowSort [3] {{1,3}, {0,2}, {3,1}, {1,0}} tStart=0.665291365 tEnd=0.333333333 sign=1 windValue=1 windSum=? 1->0 (max=1) done=0 tiny=0 opp=0
 debugShowSort [0] {{1,3}, {0,1}, {3,1}, {2,0}} tStart=0.555550487 tEnd=0.555555556 sign=-1 windValue=1 windSum=? -1->0 (max=-1) done=0 tiny=0 opp=1
 markWinding id=1 (1,3 0,1 3,1 2,0) t=0.316987298 [4] (1,1.60540831) tEnd=0.555550487 newWindSum=-1 newOppSum=1 oppSum=? windSum=? windValue=1
 markWinding id=3 (1,3 0,2 3,1 1,0) t=0.333333333 [4] (1,2) tEnd=0.665291365 newWindSum=1 newOppSum=-1 oppSum=? windSum=? windValue=1
 markWinding id=1 (1,3 0,1 3,1 2,0) t=0.555550487 [5] (1.66527998,1.00412595) tEnd=0.555555556 newWindSum=-1 newOppSum=0 oppSum=? windSum=? windValue=1
 debugShowActiveSpans id=3 (1,3 0,2 3,1 1,0) t=0 (1,3) tEnd=0.195806707 other=4 otherT=1 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (1,3 0,2 3,1 1,0) t=0 (1,3) tEnd=0.195806707 other=1 otherT=0 otherIndex=0 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (1,3 0,2 3,1 1,0) t=0 (1,3) tEnd=0.195806707 other=2 otherT=1 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (1,3 0,2 3,1 1,0) t=0.195806707 (0.80509752,2.41257977) tEnd=0.333333333 other=1 otherT=0.109171117 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (1,3 0,2 3,1 1,0) t=0.333333333 (1,2) tEnd=0.665291365 other=4 otherT=0.666666667 otherIndex=2 windSum=1 windValue=1 oppValue=0
 debugShowActiveSpans id=4 (1,0 1,3) t=0.535136114 (1,1.60540831) tEnd=0.666666667 other=1 otherT=0.316987298 otherIndex=4 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=4 (1,0 1,3) t=0.666666667 (1,2) tEnd=1 other=3 otherT=0.333333333 otherIndex=4 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (1,3 0,1 3,1 2,0) t=0 (1,3) tEnd=0.109171117 other=3 otherT=0 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (1,3 0,1 3,1 2,0) t=0 (1,3) tEnd=0.109171117 other=4 otherT=1 otherIndex=4 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (1,3 0,1 3,1 2,0) t=0 (1,3) tEnd=0.109171117 other=2 otherT=1 otherIndex=5 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (1,3 0,1 3,1 2,0) t=0.109171117 (0.80509752,2.41257977) tEnd=0.316987298 other=3 otherT=0.195806707 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (1,3 0,1 3,1 2,0) t=0.316987298 (1,1.60540831) tEnd=0.555550487 other=4 otherT=0.535136114 otherIndex=1 windSum=-1 windValue=1 oppValue=0
 debugShowActiveSpans id=1 (1,3 0,1 3,1 2,0) t=0.555550487 (1.66527998,1.00412595) tEnd=0.555555556 other=3 otherT=0.665291365 otherIndex=5 windSum=-1 windValue=1 oppValue=0
 debugShowActiveSpans id=1 (1,3 0,1 3,1 2,0) t=0.555555556 (1.66529489,1.00411522) tEnd=1 other=2 otherT=0.334705075 otherIndex=2 windSum=1 windValue=1 oppValue=0
 debugShowActiveSpans id=2 (2,0 1,3) t=0 (2,0) tEnd=0.333333333 other=1 otherT=1 otherIndex=7 windSum=1 windValue=1 oppValue=0
 debugShowActiveSpans id=2 (2,0 1,3) t=0.333333333 (1.66666663,1) tEnd=0.334705075 other=3 otherT=0.666666667 otherIndex=6 windSum=1 windValue=1 oppValue=0
 debugShowActiveSpans id=2 (2,0 1,3) t=0.334705075 (1.66529489,1.00411522) tEnd=1 other=1 otherT=0.555555556 otherIndex=6 windSum=? windValue=1 oppValue=0
 activeOp op=diff miFrom=0 miTo=1 suFrom=1 suTo=1 result=0
 markDoneBinary id=1 (1,3 0,1 3,1 2,0) t=0.316987298 [4] (1,1.60540831) tEnd=0.555550487 newWindSum=-1 newOppSum=1 oppSum=1 windSum=-1 windValue=1
 findChaseOp debugShowSort contourWinding=-1 oppContourWinding=1 sign=-1
 debugShowSort [0] {{1,3}, {0,1}, {3,1}, {2,0}} tStart=0.316987298 tEnd=0.555550487 sign=-1 windValue=1 windSum=-1 -1->0 (max=-1) done=1 tiny=0 opp=0
 debugShowSort [1] {{1,0}, {1,3}} tStart=0.535136114 tEnd=0 sign=1 windValue=1 windSum=1 1->0 (max=1) done=1 tiny=0 opp=1
 debugShowSort [2] {{1,3}, {0,1}, {3,1}, {2,0}} tStart=0.316987298 tEnd=0.109171117 sign=1 windValue=1 windSum=? 0->-1 (max=-1) done=0 tiny=0 opp=0
 debugShowSort [3] {{1,0}, {1,3}} tStart=0.535136114 tEnd=0.666666667 sign=-1 windValue=1 windSum=? 0->1 (max=1) done=0 tiny=0 opp=1
 findChaseOp debugShowSort contourWinding=-1 oppContourWinding=1 sign=-1
 debugShowSort [0] {{1,3}, {0,1}, {3,1}, {2,0}} tStart=0.316987298 tEnd=0.555550487 sign=-1 windValue=1 windSum=-1 -1->0 (max=-1) done=1 tiny=0 opp=0
 debugShowSort [1] {{1,0}, {1,3}} tStart=0.535136114 tEnd=0 sign=1 windValue=1 windSum=1 1->0 (max=1) done=1 tiny=0 opp=1
 debugShowSort [2] {{1,3}, {0,1}, {3,1}, {2,0}} tStart=0.316987298 tEnd=0.109171117 sign=1 windValue=1 windSum=? 0->-1 (max=-1) done=0 tiny=0 opp=0
 debugShowSort [3] {{1,0}, {1,3}} tStart=0.535136114 tEnd=0.666666667 sign=-1 windValue=1 windSum=? 0->1 (max=1) done=0 tiny=0 opp=1
 markWinding id=1 (1,3 0,1 3,1 2,0) t=0.109171117 [3] (0.80509752,2.41257977) tEnd=0.316987298 newWindSum=-1 newOppSum=0 oppSum=? windSum=? windValue=1
 markWinding id=4 (1,0 1,3) t=0.535136114 [1] (1,1.60540831) tEnd=0.666666667 newWindSum=1 newOppSum=-1 oppSum=? windSum=? windValue=1
 debugShowActiveSpans id=3 (1,3 0,2 3,1 1,0) t=0 (1,3) tEnd=0.195806707 other=4 otherT=1 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (1,3 0,2 3,1 1,0) t=0 (1,3) tEnd=0.195806707 other=1 otherT=0 otherIndex=0 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (1,3 0,2 3,1 1,0) t=0 (1,3) tEnd=0.195806707 other=2 otherT=1 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (1,3 0,2 3,1 1,0) t=0.195806707 (0.80509752,2.41257977) tEnd=0.333333333 other=1 otherT=0.109171117 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (1,3 0,2 3,1 1,0) t=0.333333333 (1,2) tEnd=0.665291365 other=4 otherT=0.666666667 otherIndex=2 windSum=1 windValue=1 oppValue=0
 debugShowActiveSpans id=4 (1,0 1,3) t=0.535136114 (1,1.60540831) tEnd=0.666666667 other=1 otherT=0.316987298 otherIndex=4 windSum=1 windValue=1 oppValue=0
 debugShowActiveSpans id=4 (1,0 1,3) t=0.666666667 (1,2) tEnd=1 other=3 otherT=0.333333333 otherIndex=4 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (1,3 0,1 3,1 2,0) t=0 (1,3) tEnd=0.109171117 other=3 otherT=0 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (1,3 0,1 3,1 2,0) t=0 (1,3) tEnd=0.109171117 other=4 otherT=1 otherIndex=4 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (1,3 0,1 3,1 2,0) t=0 (1,3) tEnd=0.109171117 other=2 otherT=1 otherIndex=5 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (1,3 0,1 3,1 2,0) t=0.109171117 (0.80509752,2.41257977) tEnd=0.316987298 other=3 otherT=0.195806707 otherIndex=3 windSum=-1 windValue=1 oppValue=0
 debugShowActiveSpans id=1 (1,3 0,1 3,1 2,0) t=0.555550487 (1.66527998,1.00412595) tEnd=0.555555556 other=3 otherT=0.665291365 otherIndex=5 windSum=-1 windValue=1 oppValue=0
 debugShowActiveSpans id=1 (1,3 0,1 3,1 2,0) t=0.555555556 (1.66529489,1.00411522) tEnd=1 other=2 otherT=0.334705075 otherIndex=2 windSum=1 windValue=1 oppValue=0
 debugShowActiveSpans id=2 (2,0 1,3) t=0 (2,0) tEnd=0.333333333 other=1 otherT=1 otherIndex=7 windSum=1 windValue=1 oppValue=0
 debugShowActiveSpans id=2 (2,0 1,3) t=0.333333333 (1.66666663,1) tEnd=0.334705075 other=3 otherT=0.666666667 otherIndex=6 windSum=1 windValue=1 oppValue=0
 debugShowActiveSpans id=2 (2,0 1,3) t=0.334705075 (1.66529489,1.00411522) tEnd=1 other=1 otherT=0.555555556 otherIndex=6 windSum=? windValue=1 oppValue=0
 activeOp op=diff miFrom=0 miTo=1 suFrom=0 suTo=0 result=1
 findNextOp debugShowSort contourWinding=-1 oppContourWinding=0 sign=-1
 debugShowSort [1] {{1,3}, {0,1}, {3,1}, {2,0}} tStart=0.109171117 tEnd=0.316987298 sign=-1 windValue=1 windSum=-1 -1->0 (max=-1) done=0 tiny=0 opp=0
 debugShowSort [2] {{1,3}, {0,2}, {3,1}, {1,0}} tStart=0.195806707 tEnd=0 sign=1 windValue=1 windSum=? 0->-1 (max=-1) done=0 tiny=0 opp=1
 debugShowSort [3] {{1,3}, {0,1}, {3,1}, {2,0}} tStart=0.109171117 tEnd=0 sign=1 windValue=1 windSum=? 0->-1 (max=-1) done=0 tiny=0 opp=0
 debugShowSort [0] {{1,3}, {0,2}, {3,1}, {1,0}} tStart=0.195806707 tEnd=0.333333333 sign=-1 windValue=1 windSum=? -1->0 (max=-1) done=0 tiny=0 opp=1
 findNextOp firstIndex=[1] sign=-1
 activeOp op=diff miFrom=0 miTo=0 suFrom=0 suTo=1 result=0
 markDoneBinary id=3 (1,3 0,2 3,1 1,0) t=0 [1] (1,3) tEnd=0 newWindSum=-1 newOppSum=0 oppSum=? windSum=? windValue=1
 markDoneBinary id=3 (1,3 0,2 3,1 1,0) t=0 [0] (1,3) tEnd=0 newWindSum=-1 newOppSum=0 oppSum=? windSum=? windValue=1
 markDoneBinary id=3 (1,3 0,2 3,1 1,0) t=0 [2] (1,3) tEnd=0.195806707 newWindSum=-1 newOppSum=0 oppSum=? windSum=? windValue=1
 findNextOp chase.append id=3
 activeOp op=diff miFrom=0 miTo=1 suFrom=1 suTo=1 result=0
 markDoneBinary id=1 (1,3 0,1 3,1 2,0) t=0 [1] (1,3) tEnd=0 newWindSum=-1 newOppSum=-1 oppSum=? windSum=? windValue=1
 markDoneBinary id=1 (1,3 0,1 3,1 2,0) t=0 [0] (1,3) tEnd=0 newWindSum=-1 newOppSum=-1 oppSum=? windSum=? windValue=1
 markDoneBinary id=1 (1,3 0,1 3,1 2,0) t=0 [2] (1,3) tEnd=0.109171117 newWindSum=-1 newOppSum=-1 oppSum=? windSum=? windValue=1
 findNextOp chase.append id=1
 activeOp op=diff miFrom=1 miTo=1 suFrom=1 suTo=0 result=1
 markWinding id=3 (1,3 0,2 3,1 1,0) t=0.195806707 [3] (0.80509752,2.41257977) tEnd=0.333333333 newWindSum=-1 newOppSum=-1 oppSum=? windSum=? windValue=1
 findNextOp chase.append id=3
 markDoneBinary id=1 (1,3 0,1 3,1 2,0) t=0.109171117 [3] (0.80509752,2.41257977) tEnd=0.316987298 newWindSum=-1 newOppSum=0 oppSum=0 windSum=-1 windValue=1
 findNextOp from:[1] to:[3] start=3 end=4
 bridgeOp current id=1 from=(1,1.60540831) to=(0.80509752,2.41257977)
 path.moveTo(1,1.60540831);
 path.cubicTo(0.847867966,1.82018507, 0.758966982,2.08026719, 0.80509752,2.41257977);
 findNextOp debugShowSort contourWinding=0 oppContourWinding=-1 sign=1
 debugShowSort [2] {{1,3}, {0,2}, {3,1}, {1,0}} tStart=0.333333333 tEnd=0.195806707 sign=1 windValue=1 windSum=-1 0->-1 (max=-1) done=0 tiny=0 opp=0
 debugShowSort [3] {{1,0}, {1,3}} tStart=0.666666667 tEnd=1 sign=-1 windValue=1 windSum=? -1->0 (max=-1) done=0 tiny=0 opp=0
 debugShowSort [0] {{1,3}, {0,2}, {3,1}, {1,0}} tStart=0.333333333 tEnd=0.665291365 sign=-1 windValue=1 windSum=1 0->1 (max=1) done=0 tiny=0 opp=0
 debugShowSort [1] {{1,0}, {1,3}} tStart=0.666666667 tEnd=0.535136114 sign=1 windValue=1 windSum=1 1->0 (max=1) done=0 tiny=0 opp=0
 findNextOp firstIndex=[2] sign=1
 activeOp op=diff miFrom=1 miTo=1 suFrom=1 suTo=0 result=1
 markWinding id=4 (1,0 1,3) t=0.666666667 [2] (1,2) tEnd=1 newWindSum=-1 newOppSum=-1 oppSum=? windSum=? windValue=1
 findNextOp chase.append id=4
 activeOp op=diff miFrom=1 miTo=1 suFrom=0 suTo=1 result=1
 activeOp op=diff miFrom=1 miTo=1 suFrom=1 suTo=0 result=1
 markDoneBinary id=3 (1,3 0,2 3,1 1,0) t=0.195806707 [3] (0.80509752,2.41257977) tEnd=0.333333333 newWindSum=-1 newOppSum=-1 oppSum=-1 windSum=-1 windValue=1
 findNextOp from:[3] to:[4] start=2 end=3
 bridgeOp current id=3 from=(0.80509752,2.41257977) to=(1,2)
 path.cubicTo(0.835544765,2.27505326, 0.908315599,2.13752651, 1,2);
 findNextOp debugShowSort contourWinding=0 oppContourWinding=-1 sign=1
 debugShowSort [1] {{1,0}, {1,3}} tStart=1 tEnd=0.666666667 sign=1 windValue=1 windSum=-1 0->-1 (max=-1) done=0 tiny=0 opp=0
 debugShowSort [2] {{1,3}, {0,1}, {3,1}, {2,0}} tStart=0 tEnd=0.109171117 sign=-1 windValue=1 windSum=-1 -1->0 (max=-1) done=1 tiny=0 opp=1
 debugShowSort [3] {{1,3}, {0,2}, {3,1}, {1,0}} tStart=0 tEnd=0.195806707 sign=-1 windValue=1 windSum=-1 -1->0 (max=-1) done=1 tiny=0 opp=0
 debugShowSort [0] {{2,0}, {1,3}} tStart=1 tEnd=0.334705075 sign=1 windValue=1 windSum=? 0->-1 (max=-1) done=0 tiny=0 opp=1
 findNextOp firstIndex=[1] sign=1
 activeOp op=diff miFrom=1 miTo=0 suFrom=1 suTo=1 result=0
 activeOp op=diff miFrom=0 miTo=0 suFrom=1 suTo=0 result=0
 activeOp op=diff miFrom=0 miTo=1 suFrom=0 suTo=0 result=1
 markWinding id=2 (2,0 1,3) t=0.334705075 [2] (1.66529489,1.00411522) tEnd=1 newWindSum=-1 newOppSum=0 oppSum=? windSum=? windValue=1
 findNextOp chase.append id=2
 markDoneBinary id=4 (1,0 1,3) t=0.666666667 [2] (1,2) tEnd=1 newWindSum=-1 newOppSum=-1 oppSum=-1 windSum=-1 windValue=1
 findNextOp from:[4] to:[2] start=4 end=2
 bridgeOp current id=4 from=(1,2) to=(1,3)
 findNextOp debugShowSort contourWinding=-1 oppContourWinding=0 sign=-1
 debugShowSort [3] {{2,0}, {1,3}} tStart=0.334705075 tEnd=1 sign=-1 windValue=1 windSum=-1 -1->0 (max=-1) done=0 tiny=0 opp=0
 debugShowSort [0] {{1,3}, {0,1}, {3,1}, {2,0}} tStart=0.555555556 tEnd=1 sign=-1 windValue=1 windSum=1 0->1 (max=1) done=0 tiny=0 opp=0
 debugShowSort [1] {{2,0}, {1,3}} tStart=0.334705075 tEnd=0.333333333 sign=1 windValue=1 windSum=1 1->0 (max=1) done=0 tiny=0 opp=0
 debugShowSort [2] {{1,3}, {0,1}, {3,1}, {2,0}} tStart=0.555555556 tEnd=0.555550487 sign=1 windValue=1 windSum=-1 0->-1 (max=-1) done=0 tiny=0 opp=0
 findNextOp firstIndex=[3] sign=-1
 activeOp op=diff miFrom=0 miTo=1 suFrom=0 suTo=0 result=1
 activeOp op=diff miFrom=1 miTo=0 suFrom=0 suTo=0 result=1
 activeOp op=diff miFrom=0 miTo=1 suFrom=0 suTo=0 result=1
 markDoneBinary id=2 (2,0 1,3) t=0.334705075 [2] (1.66529489,1.00411522) tEnd=1 newWindSum=-1 newOppSum=0 oppSum=0 windSum=-1 windValue=1
 findNextOp from:[2] to:[1] start=6 end=7
 bridgeOp current id=2 from=(1,3) to=(1.66529489,1.00411522)
 path.lineTo(1,3);
 findNextOp simple
 markDoneBinary id=1 (1,3 0,1 3,1 2,0) t=0.555555556 [6] (1.66529489,1.00411522) tEnd=1 newWindSum=1 newOppSum=0 oppSum=0 windSum=1 windValue=1
 bridgeOp current id=1 from=(1.66529489,1.00411522) to=(2,0)
 path.lineTo(1.66529489,1.00411522);
 path.cubicTo(2.09876537,0.69135803, 2.44444442,0.444444448, 2,0);
 findNextOp debugShowSort contourWinding=1 oppContourWinding=0 sign=1
 debugShowSort [0] {{2,0}, {1,3}} tStart=0.333333333 tEnd=0 sign=1 windValue=1 windSum=1 1->0 (max=1) done=0 tiny=0 opp=0
 debugShowSort [1] {{1,3}, {0,2}, {3,1}, {1,0}} tStart=0.666666667 tEnd=1 sign=-1 windValue=1 windSum=1 0->1 (max=1) done=1 tiny=0 opp=1
 debugShowSort [2] {{1,3}, {0,2}, {3,1}, {1,0}} tStart=0.666666667 tEnd=0.665291365 sign=1 windValue=1 windSum=1 1->0 (max=1) done=1 tiny=0 opp=1
 debugShowSort [3] {{2,0}, {1,3}} tStart=0.333333333 tEnd=0.334705075 sign=-1 windValue=1 windSum=1 0->1 (max=1) done=0 tiny=0 opp=0
 findNextOp firstIndex=[0] sign=1
 activeOp op=diff miFrom=0 miTo=0 suFrom=0 suTo=1 result=0
 activeOp op=diff miFrom=0 miTo=0 suFrom=1 suTo=0 result=0
 activeOp op=diff miFrom=0 miTo=1 suFrom=0 suTo=0 result=1
 markDoneBinary id=2 (2,0 1,3) t=0 [0] (2,0) tEnd=0.333333333 newWindSum=1 newOppSum=0 oppSum=0 windSum=1 windValue=1
 findNextOp from:[2] to:[2] start=1 end=2
 bridgeOp current id=2 from=(2,0) to=(1.66666663,1)
 findNextOp debugShowSort contourWinding=1 oppContourWinding=0 sign=1
 debugShowSort [1] {{2,0}, {1,3}} tStart=0.334705075 tEnd=0.333333333 sign=1 windValue=1 windSum=1 1->0 (max=1) done=0 tiny=0 opp=0
 debugShowSort [2] {{1,3}, {0,1}, {3,1}, {2,0}} tStart=0.555555556 tEnd=0.555550487 sign=1 windValue=1 windSum=-1 0->-1 (max=-1) done=0 tiny=0 opp=0
 debugShowSort [3] {{2,0}, {1,3}} tStart=0.334705075 tEnd=1 sign=-1 windValue=1 windSum=-1 -1->0 (max=-1) done=1 tiny=0 opp=0
 debugShowSort [0] {{1,3}, {0,1}, {3,1}, {2,0}} tStart=0.555555556 tEnd=1 sign=-1 windValue=1 windSum=1 0->1 (max=1) done=1 tiny=0 opp=0
 findNextOp firstIndex=[1] sign=1
 activeOp op=diff miFrom=0 miTo=1 suFrom=0 suTo=0 result=1
 activeOp op=diff miFrom=1 miTo=0 suFrom=0 suTo=0 result=1
 activeOp op=diff miFrom=0 miTo=1 suFrom=0 suTo=0 result=1
 markDoneBinary id=2 (2,0 1,3) t=0.333333333 [1] (1.66666663,1) tEnd=0.334705075 newWindSum=1 newOppSum=0 oppSum=0 windSum=1 windValue=1
 findNextOp from:[2] to:[1] start=6 end=5
 bridgeOp current id=2 from=(1.66666663,1) to=(1.66529489,1.00411522)
 path.lineTo(1.66666663,1);
 findNextOp debugShowSort contourWinding=-1 oppContourWinding=0 sign=-1
 debugShowSort [0] {{1,3}, {0,1}, {3,1}, {2,0}} tStart=0.555550487 tEnd=0.555555556 sign=-1 windValue=1 windSum=-1 -1->0 (max=-1) done=0 tiny=0 opp=0
 debugShowSort [1] {{1,3}, {0,2}, {3,1}, {1,0}} tStart=0.665291365 tEnd=0.666666667 sign=-1 windValue=1 windSum=1 0->1 (max=1) done=1 tiny=0 opp=1
 debugShowSort [2] {{1,3}, {0,1}, {3,1}, {2,0}} tStart=0.555550487 tEnd=0.316987298 sign=1 windValue=1 windSum=-1 0->-1 (max=-1) done=1 tiny=0 opp=0
 debugShowSort [3] {{1,3}, {0,2}, {3,1}, {1,0}} tStart=0.665291365 tEnd=0.333333333 sign=1 windValue=1 windSum=1 1->0 (max=1) done=0 tiny=0 opp=1
 findNextOp firstIndex=[0] sign=-1
 activeOp op=diff miFrom=0 miTo=0 suFrom=0 suTo=1 result=0
 activeOp op=diff miFrom=0 miTo=1 suFrom=1 suTo=1 result=0
 activeOp op=diff miFrom=1 miTo=1 suFrom=1 suTo=0 result=1
 markDoneBinary id=1 (1,3 0,1 3,1 2,0) t=0.555550487 [5] (1.66527998,1.00412595) tEnd=0.555555556 newWindSum=-1 newOppSum=0 oppSum=0 windSum=-1 windValue=1
 findNextOp from:[1] to:[3] start=5 end=4
 bridgeOp current id=1 from=(1.66529489,1.00411522) to=(1.66527998,1.00412595)
 path.lineTo(1.66529489,1.00411522);
 path.cubicTo(1.66529,1.0041188, 1.66528511,1.00412238, 1.66527998,1.00412595);
 findNextOp debugShowSort contourWinding=0 oppContourWinding=-1 sign=-1
 debugShowSort [0] {{1,3}, {0,2}, {3,1}, {1,0}} tStart=0.333333333 tEnd=0.665291365 sign=-1 windValue=1 windSum=1 0->1 (max=1) done=0 tiny=0 opp=0
 debugShowSort [1] {{1,0}, {1,3}} tStart=0.666666667 tEnd=0.535136114 sign=1 windValue=1 windSum=1 1->0 (max=1) done=0 tiny=0 opp=0
 debugShowSort [2] {{1,3}, {0,2}, {3,1}, {1,0}} tStart=0.333333333 tEnd=0.195806707 sign=1 windValue=1 windSum=-1 0->-1 (max=-1) done=1 tiny=0 opp=0
 debugShowSort [3] {{1,0}, {1,3}} tStart=0.666666667 tEnd=1 sign=-1 windValue=1 windSum=-1 -1->0 (max=-1) done=1 tiny=0 opp=0
 findNextOp firstIndex=[0] sign=-1
 activeOp op=diff miFrom=1 miTo=1 suFrom=1 suTo=0 result=1
 activeOp op=diff miFrom=1 miTo=1 suFrom=0 suTo=1 result=1
 activeOp op=diff miFrom=1 miTo=1 suFrom=1 suTo=0 result=1
 markDoneBinary id=3 (1,3 0,2 3,1 1,0) t=0.333333333 [4] (1,2) tEnd=0.665291365 newWindSum=1 newOppSum=-1 oppSum=-1 windSum=1 windValue=1
 findNextOp from:[3] to:[4] start=2 end=1
 bridgeOp current id=3 from=(1.66527998,1.00412595) to=(1,2)
 path.cubicTo(1.55280685,1.33608389, 1.22130537,1.66804194, 1,2);
 findNextOp debugShowSort contourWinding=0 oppContourWinding=-1 sign=-1
 debugShowSort [3] {{1,0}, {1,3}} tStart=0.535136114 tEnd=0.666666667 sign=-1 windValue=1 windSum=1 0->1 (max=1) done=0 tiny=0 opp=0
 debugShowSort [0] {{1,3}, {0,1}, {3,1}, {2,0}} tStart=0.316987298 tEnd=0.555550487 sign=-1 windValue=1 windSum=-1 -1->0 (max=-1) done=1 tiny=0 opp=1
 debugShowSort [1] {{1,0}, {1,3}} tStart=0.535136114 tEnd=0 sign=1 windValue=1 windSum=1 1->0 (max=1) done=1 tiny=0 opp=0
 debugShowSort [2] {{1,3}, {0,1}, {3,1}, {2,0}} tStart=0.316987298 tEnd=0.109171117 sign=1 windValue=1 windSum=-1 0->-1 (max=-1) done=1 tiny=0 opp=1
 findNextOp firstIndex=[3] sign=-1
 activeOp op=diff miFrom=1 miTo=0 suFrom=1 suTo=1 result=0
 activeOp op=diff miFrom=0 miTo=0 suFrom=1 suTo=0 result=0
 activeOp op=diff miFrom=0 miTo=1 suFrom=0 suTo=0 result=1
 markDoneBinary id=4 (1,0 1,3) t=0.535136114 [1] (1,1.60540831) tEnd=0.666666667 newWindSum=1 newOppSum=-1 oppSum=-1 windSum=1 windValue=1
 findNextOp from:[4] to:[1] start=4 end=3
 bridgeOp current id=4 from=(1,2) to=(1,1.60540831)
 path.lineTo(1,1.60540831);
 path.close();
 </div>

 <div id="testTriangles1">
   RunTestSet [testTriangles1]
 {{0,0}, {1,0}},
 {{1,0}, {3,3}},
 {{3,3}, {0,0}},
 {{0,0}, {1,2}},
 {{1,2}, {1,1}},
 {{1,1}, {0,0}},
 debugShowLineIntersection wtTs[0]=0 {{0,0}, {1,0}} {{1,0}} wnTs[0]=1 {{1,0}, {3,3}}
 debugShowLineIntersection wtTs[0]=1 {{0,0}, {1,0}} {{0,0}} wnTs[0]=0 {{3,3}, {0,0}}
 debugShowLineIntersection wtTs[0]=1 {{1,0}, {3,3}} {{3,3}} wnTs[0]=0 {{3,3}, {0,0}}
 debugShowLineIntersection wtTs[0]=0 {{0,0}, {1,0}} {{0,0}} wnTs[0]=0 {{0,0}, {1,2}}
 debugShowLineIntersection wtTs[0]=1 {{0,0}, {1,0}} {{0,0}} wnTs[0]=0 {{1,1}, {0,0}}
 debugShowLineIntersection no intersect {{1,0}, {3,3}} {{0,0}, {1,2}}
 debugShowLineIntersection no intersect {{1,0}, {3,3}} {{1,2}, {1,1}}
 debugShowLineIntersection no intersect {{1,0}, {3,3}} {{1,1}, {0,0}}
 debugShowLineIntersection wtTs[0]=1 {{3,3}, {0,0}} {{0,0}} wnTs[0]=-0 {{0,0}, {1,2}}
 debugShowLineIntersection wtTs[0]=0.666666667 {{3,3}, {0,0}} {{1,1}} wnTs[0]=1 {{1,2}, {1,1}}
 debugShowLineIntersection wtTs[0]=0.666666667 {{3,3}, {0,0}} {{1,1}} wtTs[1]=1 {{0,0}} wnTs[0]=0 {{1,1}, {0,0}} wnTs[1]=1
 debugShowLineIntersection wtTs[0]=1 {{0,0}, {1,2}} {{1,2}} wnTs[0]=0 {{1,2}, {1,1}}
 debugShowLineIntersection wtTs[0]=0 {{0,0}, {1,2}} {{0,0}} wnTs[0]=1 {{1,1}, {0,0}}
 debugShowLineIntersection wtTs[0]=-0 {{1,2}, {1,1}} {{1,1}} wnTs[0]=1 {{1,1}, {0,0}}
 debugShowTs id=3 [o=2 t=0 3,3 w=1 o=0] [o=5 t=0.667 1,1 w=1 o=0] [o=1,4 t=1 0,0 w=1 o=0]
 debugShowTs id=6 [o=5 t=-0 1,1 w=1 o=0] [o=1,4 t=1 0,0 w=1 o=0]
 addTPair addTPair this=3 0.666666667 other=6 0
 debugShowTs id=3 [o=2 t=0 3,3 w=1 o=0] [o=5,6 t=0.667 1,1 w=1 o=0] [o=1,4 t=1 0,0 w=1 o=0]
 debugShowTs id=6 [o=5,3 t=-0 1,1 w=1 o=0] [o=1,4 t=1 0,0 w=1 o=0]
 debugShowTs id=3 [o=2 t=0 3,3 w=1 o=0] [o=5,6 t=0.667 1,1 w=2 o=0] [o=1,4 t=1 0,0 w=1 o=0]
 debugShowTs id=6 [o=5,3 t=-0 1,1 w=0 o=0] [o=1,4 t=1 0,0 w=1 o=0] done
 debugShowActiveSpans id=1 (0,0 1,0) t=0 (0,0) tEnd=1 other=3 otherT=1 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,0 1,0) t=0 (0,0) tEnd=1 other=4 otherT=0 otherIndex=0 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,0 1,0) t=0 (0,0) tEnd=1 other=6 otherT=1 otherIndex=2 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=2 (1,0 3,3) t=0 (1,0) tEnd=1 other=1 otherT=1 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (3,3 0,0) t=0 (3,3) tEnd=0.666666667 other=2 otherT=1 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (3,3 0,0) t=0.666666667 (1,1) tEnd=1 other=5 otherT=1 otherIndex=1 windSum=? windValue=2 oppValue=0
 debugShowActiveSpans id=3 (3,3 0,0) t=0.666666667 (1,1) tEnd=1 other=6 otherT=0 otherIndex=1 windSum=? windValue=2 oppValue=0
 debugShowActiveSpans id=4 (0,0 1,2) t=0 (0,0) tEnd=1 other=1 otherT=0 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=4 (0,0 1,2) t=-0 (0,0) tEnd=1 other=3 otherT=1 otherIndex=4 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=4 (0,0 1,2) t=0 (0,0) tEnd=1 other=6 otherT=1 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=5 (1,2 1,1) t=0 (1,2) tEnd=1 other=4 otherT=1 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=5 (1,2 1,1) t=1 (1,1) tEnd=1 other=3 otherT=0.666666667 otherIndex=1 windSum=? windValue=1 oppValue=0
 findTop debugShowSort contourWinding=0 oppContourWinding=0 sign=-1
 debugShowSort [0] {{0,0}, {1,2}} tStart=0 tEnd=1 sign=-1 windValue=1 windSum=? 0->1 (max=1) done=0 tiny=0 opp=0
 debugShowSort [1] {{3,3}, {0,0}} tStart=1 tEnd=0.666666667 sign=1 windValue=2 windSum=? 1->-1 (max=1) done=0 tiny=0 opp=0
 debugShowSort [2] {{0,0}, {1,0}} tStart=0 tEnd=1 sign=-1 windValue=1 windSum=? -1->0 (max=-1) done=0 tiny=0 opp=0
 markWinding id=4 (0,0 1,2) t=0 [0] (0,0) tEnd=-0 newWindSum=1 newOppSum=0 oppSum=? windSum=? windValue=1
 markWinding id=4 (0,0 1,2) t=-0 [1] (0,0) tEnd=0 newWindSum=1 newOppSum=0 oppSum=? windSum=? windValue=1
 markWinding id=4 (0,0 1,2) t=0 [2] (0,0) tEnd=1 newWindSum=1 newOppSum=0 oppSum=? windSum=? windValue=1
 markWinding id=4 (0,0 1,2) t=0 [0] (0,0) tEnd=-0 newWindSum=1 newOppSum=0 oppSum=0 windSum=1 windValue=1
 markWinding id=4 (0,0 1,2) t=-0 [1] (0,0) tEnd=0 newWindSum=1 newOppSum=0 oppSum=0 windSum=1 windValue=1
 markWinding id=4 (0,0 1,2) t=0 [2] (0,0) tEnd=1 newWindSum=1 newOppSum=0 oppSum=0 windSum=1 windValue=1
 markWinding id=5 (1,2 1,1) t=0 [0] (1,2) tEnd=1 newWindSum=1 newOppSum=0 oppSum=? windSum=? windValue=1
 findNextWinding debugShowSort contourWinding=0 oppContourWinding=0 sign=-1
 debugShowSort [0] {{0,0}, {1,2}} tStart=0 tEnd=1 sign=-1 windValue=1 windSum=1 0->1 (max=1) done=0 tiny=0 opp=0
 debugShowSort [1] {{3,3}, {0,0}} tStart=1 tEnd=0.666666667 sign=1 windValue=2 windSum=? 1->-1 (max=1) done=0 tiny=0 opp=0
 debugShowSort [2] {{0,0}, {1,0}} tStart=0 tEnd=1 sign=-1 windValue=1 windSum=? -1->0 (max=-1) done=0 tiny=0 opp=0
 findNextWinding firstIndex=[0] sign=-1
 markDone id=3 (3,3 0,0) t=0.666666667 [1] (1,1) tEnd=0.666666667 newWindSum=1 windSum=? windValue=2
 markDone id=3 (3,3 0,0) t=0.666666667 [2] (1,1) tEnd=1 newWindSum=1 windSum=? windValue=2
 findNextWinding chase.append id=3
 markWinding id=1 (0,0 1,0) t=0 [0] (0,0) tEnd=0 newWindSum=-1 windSum=? windValue=1
 markWinding id=1 (0,0 1,0) t=0 [1] (0,0) tEnd=0 newWindSum=-1 windSum=? windValue=1
 markWinding id=1 (0,0 1,0) t=0 [2] (0,0) tEnd=1 newWindSum=-1 windSum=? windValue=1
 markWinding id=2 (1,0 3,3) t=0 [0] (1,0) tEnd=1 newWindSum=-1 windSum=? windValue=1
 markWinding id=3 (3,3 0,0) t=0 [0] (3,3) tEnd=0.666666667 newWindSum=-1 windSum=? windValue=1
 findNextWinding chase.append id=3
 markDoneUnary id=4 (0,0 1,2) t=0 [0] (0,0) tEnd=-0 newWindSum=1 windSum=1 windValue=1
 markDoneUnary id=4 (0,0 1,2) t=-0 [1] (0,0) tEnd=0 newWindSum=1 windSum=1 windValue=1
 markDoneUnary id=4 (0,0 1,2) t=0 [2] (0,0) tEnd=1 newWindSum=1 windSum=1 windValue=1
 findNextWinding from:[4] to:[1] start=1 end=3
 bridgeWinding current id=4 from=(1,2) to=(0,0)
 findNextWinding simple
 markDoneUnary id=1 (0,0 1,0) t=0 [0] (0,0) tEnd=0 newWindSum=-1 windSum=-1 windValue=1
 markDoneUnary id=1 (0,0 1,0) t=0 [1] (0,0) tEnd=0 newWindSum=-1 windSum=-1 windValue=1
 markDoneUnary id=1 (0,0 1,0) t=0 [2] (0,0) tEnd=1 newWindSum=-1 windSum=-1 windValue=1
 bridgeWinding current id=1 from=(0,0) to=(1,0)
 path.moveTo(1,2);
 path.lineTo(0,0);
 findNextWinding simple
 markDoneUnary id=2 (1,0 3,3) t=0 [0] (1,0) tEnd=1 newWindSum=-1 windSum=-1 windValue=1
 bridgeWinding current id=2 from=(1,0) to=(3,3)
 path.lineTo(1,0);
 findNextWinding debugShowSort contourWinding=0 oppContourWinding=? sign=1
 debugShowSort [2] {{3,3}, {0,0}} tStart=0.666666667 tEnd=0 sign=1 windValue=1 windSum=-1 0->-1 (max=-1) done=0 tiny=0 opp=0
 debugShowSort [0] {{3,3}, {0,0}} tStart=0.666666667 tEnd=1 sign=-1 windValue=2 windSum=1 -1->1 (max=1) done=1 tiny=0 opp=0
 debugShowSort [1] {{1,2}, {1,1}} tStart=1 tEnd=0 sign=1 windValue=1 windSum=1 1->0 (max=1) done=0 tiny=0 opp=0
 findNextWinding firstIndex=[2] sign=1
 markDoneUnary id=3 (3,3 0,0) t=0 [0] (3,3) tEnd=0.666666667 newWindSum=-1 windSum=-1 windValue=1
 findNextWinding from:[3] to:[5] start=1 end=0
 bridgeWinding current id=3 from=(3,3) to=(1,1)
 path.lineTo(3,3);
 findNextWinding simple
 markDoneUnary id=5 (1,2 1,1) t=0 [0] (1,2) tEnd=1 newWindSum=1 windSum=1 windValue=1
 bridgeWinding current id=5 from=(1,1) to=(1,2)
 path.lineTo(1,1);
 path.lineTo(1,2);
 path.close();
 debugShowActiveSpans id=5 (1,2 1,1) t=1 (1,1) tEnd=1 other=3 otherT=0.666666667 otherIndex=1 windSum=? windValue=1 oppValue=0
 findTop debugShowSort contourWinding=0 oppContourWinding=0 sign=-2
 debugShowSort [0] {{3,3}, {0,0}} tStart=0.666666667 tEnd=1 sign=-1 windValue=2 windSum=1 0->2 (max=2) done=1 tiny=0 opp=0
 debugShowSort [1] {{1,2}, {1,1}} tStart=1 tEnd=0 sign=1 windValue=1 windSum=1 2->1 (max=2) done=1 tiny=0 opp=0
 debugShowSort [2] {{3,3}, {0,0}} tStart=0.666666667 tEnd=0 sign=1 windValue=1 windSum=-1 1->0 (max=1) done=1 tiny=0 opp=0
 </div>

 <div id="testTriangles1a">
   RunTestSet [testTriangles1a]
 debugShowLineIntersection wtTs[0]=0 {{0,0}, {1,0}} {{1,0}} wnTs[0]=1 {{1,0}, {3,3}}
 debugShowLineIntersection wtTs[0]=1 {{0,0}, {1,0}} {{0,0}} wnTs[0]=0 {{3,3}, {0,0}}
 debugShowLineIntersection wtTs[0]=1 {{1,0}, {3,3}} {{3,3}} wnTs[0]=0 {{3,3}, {0,0}}
 debugShowLineIntersection wtTs[0]=0 {{0,0}, {1,0}} {{0,0}} wnTs[0]=0 {{0,0}, {1,2}}
 debugShowLineIntersection wtTs[0]=1 {{0,0}, {1,0}} {{0,0}} wnTs[0]=0 {{1,1}, {0,0}}
 debugShowLineIntersection no intersect {{1,0}, {3,3}} {{0,0}, {1,2}}
 debugShowLineIntersection no intersect {{1,0}, {3,3}} {{1,2}, {1,1}}
 debugShowLineIntersection no intersect {{1,0}, {3,3}} {{1,1}, {0,0}}
 debugShowLineIntersection wtTs[0]=1 {{3,3}, {0,0}} {{0,0}} wnTs[0]=-0 {{0,0}, {1,2}}
 debugShowLineIntersection wtTs[0]=0.666666667 {{3,3}, {0,0}} {{1,1}} wnTs[0]=1 {{1,2}, {1,1}}
 debugShowLineIntersection wtTs[0]=0.666666667 {{3,3}, {0,0}} {{1,1}} wtTs[1]=1 {{0,0}} wnTs[0]=0 {{1,1}, {0,0}} wnTs[1]=1
 debugShowLineIntersection wtTs[0]=1 {{0,0}, {1,2}} {{1,2}} wnTs[0]=0 {{1,2}, {1,1}}
 debugShowLineIntersection wtTs[0]=0 {{0,0}, {1,2}} {{0,0}} wnTs[0]=1 {{1,1}, {0,0}}
 debugShowLineIntersection wtTs[0]=-0 {{1,2}, {1,1}} {{1,1}} wnTs[0]=1 {{1,1}, {0,0}}
 debugShowTs id=3 [o=2 t=0 3,3 w=1 o=0] [o=5 t=0.667 1,1 w=1 o=0] [o=1,4 t=1 0,0 w=1 o=0]
 debugShowTs id=6 [o=5 t=-0 1,1 w=1 o=0] [o=1,4 t=1 0,0 w=1 o=0]
 addTPair addTPair this=3 0.666666667 other=6 0
 debugShowTs id=3 [o=2 t=0 3,3 w=1 o=0] [o=5,6 t=0.667 1,1 w=1 o=0] [o=1,4 t=1 0,0 w=1 o=0]
 debugShowTs id=6 [o=5,3 t=-0 1,1 w=1 o=0] [o=1,4 t=1 0,0 w=1 o=0]
 debugShowTs id=3 [o=2 t=0 3,3 w=1 o=0] [o=5,6 t=0.667 1,1 w=2 o=0] [o=1,4 t=1 0,0 w=1 o=0]
 debugShowTs id=6 [o=5,3 t=-0 1,1 w=0 o=0] [o=1,4 t=1 0,0 w=1 o=0] done
 debugShowActiveSpans id=1 (0,0 1,0) t=0 (0,0) tEnd=1 other=3 otherT=1 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,0 1,0) t=0 (0,0) tEnd=1 other=4 otherT=0 otherIndex=0 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=1 (0,0 1,0) t=0 (0,0) tEnd=1 other=6 otherT=1 otherIndex=2 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=2 (1,0 3,3) t=0 (1,0) tEnd=1 other=1 otherT=1 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (3,3 0,0) t=0 (3,3) tEnd=0.666666667 other=2 otherT=1 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=3 (3,3 0,0) t=0.666666667 (1,1) tEnd=1 other=5 otherT=1 otherIndex=1 windSum=? windValue=2 oppValue=0
 debugShowActiveSpans id=3 (3,3 0,0) t=0.666666667 (1,1) tEnd=1 other=6 otherT=0 otherIndex=1 windSum=? windValue=2 oppValue=0
 debugShowActiveSpans id=4 (0,0 1,2) t=0 (0,0) tEnd=1 other=1 otherT=0 otherIndex=1 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=4 (0,0 1,2) t=-0 (0,0) tEnd=1 other=3 otherT=1 otherIndex=4 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=4 (0,0 1,2) t=0 (0,0) tEnd=1 other=6 otherT=1 otherIndex=3 windSum=? windValue=1 oppValue=0
 debugShowActiveSpans id=5 (1,2 1,1) t=0 (1,2) tEnd=1 other=4 otherT=1 otherIndex=3 windSum=? windValue=1 oppValue=0
 findTop debugShowSort contourWinding=0 oppContourWinding=0 sign=-1
 debugShowSort [0] {{0,0}, {1,2}} tStart=0 tEnd=1 sign=-1 windValue=1 windSum= 0->1 (max=1) done=0 tiny=0 opp=0
 debugShowSort [1] {{3,3}, {0,0}} tStart=1 tEnd=0.666666667 sign=1 windValue=2 windSum= 1->-1 (max=1) done=0 tiny=0 opp=0
 debugShowSort [2] {{0,0}, {1,0}} tStart=0 tEnd=1 sign=-1 windValue=1 windSum= -1->0 (max=-1) done=0 tiny=0 opp=0
 markWinding id=4 (0,0 1,2) t=0 [0] (0,0) tEnd=-0 newWindSum=1 newOppSum=0 oppSum=? windSum=? windValue=1
 markWinding id=4 (0,0 1,2) t=-0 [1] (0,0) tEnd=0 newWindSum=1 newOppSum=0 oppSum=? windSum=? windValue=1
 markWinding id=4 (0,0 1,2) t=0 [2] (0,0) tEnd=1 newWindSum=1 newOppSum=0 oppSum=? windSum=? windValue=1
 markWinding id=4 (0,0 1,2) t=0 [0] (0,0) tEnd=-0 newWindSum=1 newOppSum=0 oppSum=0 windSum=1 windValue=1
 markWinding id=4 (0,0 1,2) t=-0 [1] (0,0) tEnd=0 newWindSum=1 newOppSum=0 oppSum=0 windSum=1 windValue=1
 markWinding id=4 (0,0 1,2) t=0 [2] (0,0) tEnd=1 newWindSum=1 newOppSum=0 oppSum=0 windSum=1 windValue=1
 markWinding id=5 (1,2 1,1) t=0 [0] (1,2) tEnd=1 newWindSum=1 newOppSum=0 oppSum=? windSum=? windValue=1
 findNextWinding debugShowSort contourWinding=0 oppContourWinding=0 sign=-1
 debugShowSort [0] {{0,0}, {1,2}} tStart=0 tEnd=1 sign=-1 windValue=1 windSum= 0->1 (max=1) done=0 tiny=0 opp=0
 debugShowSort [1] {{3,3}, {0,0}} tStart=1 tEnd=0.666666667 sign=1 windValue=2 windSum= 1->-1 (max=1) done=0 tiny=0 opp=0
 debugShowSort [2] {{0,0}, {1,0}} tStart=0 tEnd=1 sign=-1 windValue=1 windSum= -1->0 (max=-1) done=0 tiny=0 opp=0
 findNextWinding firstIndex=[0] sign=-1
 markDone id=3 (3,3 0,0) t=0.666666667 [1] (1,1) tEnd=0.666666667 newWindSum=1 windSum=? windValue=2
 markDone id=3 (3,3 0,0) t=0.666666667 [2] (1,1) tEnd=1 newWindSum=1 windSum=? windValue=2
 findNextWinding chase.append id=3
 markWinding id=1 (0,0 1,0) t=0 [0] (0,0) tEnd=0 newWindSum=-1 windSum=? windValue=1
 markWinding id=1 (0,0 1,0) t=0 [1] (0,0) tEnd=0 newWindSum=-1 windSum=? windValue=1
 markWinding id=1 (0,0 1,0) t=0 [2] (0,0) tEnd=1 newWindSum=-1 windSum=? windValue=1
 markWinding id=2 (1,0 3,3) t=0 [0] (1,0) tEnd=1 newWindSum=-1 windSum=? windValue=1
 markWinding id=3 (3,3 0,0) t=0 [0] (3,3) tEnd=0.666666667 newWindSum=-1 windSum=? windValue=1
 findNextWinding chase.append id=3
 markDoneUnary id=4 (0,0 1,2) t=0 [0] (0,0) tEnd=-0 newWindSum=1 windSum=1 windValue=1
 markDoneUnary id=4 (0,0 1,2) t=-0 [1] (0,0) tEnd=0 newWindSum=1 windSum=1 windValue=1
 markDoneUnary id=4 (0,0 1,2) t=0 [2] (0,0) tEnd=1 newWindSum=1 windSum=1 windValue=1
 findNextWinding from:[4] to:[1] start=1 end=3
 bridgeWinding current id=4 from=(1,2) to=(0,0)
 findNextWinding simple
 markDoneUnary id=1 (0,0 1,0) t=0 [0] (0,0) tEnd=0 newWindSum=-1 windSum=-1 windValue=1
 markDoneUnary id=1 (0,0 1,0) t=0 [1] (0,0) tEnd=0 newWindSum=-1 windSum=-1 windValue=1
 markDoneUnary id=1 (0,0 1,0) t=0 [2] (0,0) tEnd=1 newWindSum=-1 windSum=-1 windValue=1
 bridgeWinding current id=1 from=(0,0) to=(1,0)
 path.moveTo(1,2);
 path.lineTo(0,0);
 findNextWinding simple
 markDoneUnary id=2 (1,0 3,3) t=0 [0] (1,0) tEnd=1 newWindSum=-1 windSum=-1 windValue=1
 bridgeWinding current id=2 from=(1,0) to=(3,3)
 path.lineTo(1,0);
 findNextWinding debugShowSort contourWinding=0 oppContourWinding=? sign=1
 debugShowSort [2] {{3,3}, {0,0}} tStart=0.666666667 tEnd=0 sign=1 windValue=1 windSum= 0->-1 (max=-1) done=0 tiny=0 opp=0
 debugShowSort [0] {{3,3}, {0,0}} tStart=0.666666667 tEnd=1 sign=-1 windValue=2 windSum= -1->1 (max=1) done=1 tiny=0 opp=0
 debugShowSort [1] {{1,2}, {1,1}} tStart=1 tEnd=0 sign=1 windValue=1 windSum= 1->0 (max=1) done=0 tiny=0 opp=0
 findNextWinding firstIndex=[2] sign=1
 markDoneUnary id=3 (3,3 0,0) t=0 [0] (3,3) tEnd=0.666666667 newWindSum=-1 windSum=-1 windValue=1
 findNextWinding from:[3] to:[5] start=1 end=0
 bridgeWinding current id=3 from=(3,3) to=(1,1)
 path.lineTo(3,3);
 findNextWinding simple
 markDoneUnary id=5 (1,2 1,1) t=0 [0] (1,2) tEnd=1 newWindSum=1 windSum=1 windValue=1
 bridgeWinding current id=5 from=(1,1) to=(1,2)
 path.lineTo(1,1);
 path.lineTo(1,2);
 path.close();
 </div>

 </div>

 <script type="text/javascript">

 var testDivs = [
     testTriangles1a,
     testTriangles1,
     cubicOp69da,
     cubicOp69d,
     cubicOp68ua,
     cubicOp68u,
     cubicOp67u,
     testQuad1,
     cubicOp62d,
     cubicOp61d,
     cubicOp58da,
     cubicOp58d,
     cubicOp57da,
     cubicOp56da,
     cubicOp55da,
     cubicOp55d,
     cubicOp54dd,
     cubicOp54dc,
     cubicOp54db,
     cubicOp54da,
     cubicOp54d,
     cubicOp53db,
     cubicOp53da,
     cubicOp53d,
     cubicOp52db,
     cubicOp52da,
     cubicOp51da,
     cubicOp51d,
     cubicOp50d,
     cubicOp49d,
     cubicOp48dc,
     cubicOp48db,
     cubicOp48da,
     cubicOp48d,
     cubicOp47db,
     cubicOp47da,
     cubicOp47d,
     cubicOp46db,
     cubicOp46da,
     cubicOp46d,
     cubicOp45d,
     cubicOp44d,
     cubicOp43d,
     cubicOp42d,
     cubicOp42da,
     cubicOp42db,
     cubicOp41i,
     cubicOp40d,
     cubicOp39da,
     cubicOp39d,
     cubicOp38d,
     cubicOp38da,
     cubicOp36u,
     cubicOp35da,
     cubicOp32d,
 ];

 var decimal_places = 3; // make this 3 to show more precision

 var tests = [];
 var testLines = [];
 var testTitles = [];
 var testIndex = 0;
 var ctx;

 var xmin, xmax;
 var ymin, ymax;
 var scale;
 var mouseX, mouseY;
 var srcLeft, srcTop;
 var screenWidth, screenHeight;
 var drawnPts, drawnLines, drawnQuads, drawnCubics;
 var curveT = 0;

 var pt_labels = 2;
 var control_lines = 0;
 var curve_t = false;
 var debug_xy = false;
 var step_limit = 0;
 var draw_active = false;
 var draw_add = false;
 var draw_deriviatives = 0;
 var draw_hints = false;
 var draw_hodo = 0;
 var draw_intersection = 0;
 var draw_intersectT = false;
 var draw_legend = true;
 var draw_log = false;
 var draw_mark = false;
 var draw_midpoint = false;
 var draw_sequence = false;
 var draw_sort = false;
 var draw_path = 3;
 var draw_computed = 0;

 var activeCount = 0;
 var addCount = 0;
 var sectCount = 0;
 var sortCount = 0;
 var markCount = 0;
 var activeMax = 0;
 var addMax = 0;
 var sectMax = 0;
 var sectMax2 = 0;
 var sortMax = 0;
 var markMax = 0;
 var stepMax = 0;
 var lastIndex = 0;
 var hasPath = false;
 var hasComputedPath = false;

 var SPAN_ID = 0;
 var SPAN_X1 = SPAN_ID + 1;
 var SPAN_Y1 = SPAN_X1 + 1;
 var SPAN_X2 = SPAN_Y1 + 1;
 var SPAN_Y2 = SPAN_X2 + 1;
 var SPAN_L_T = SPAN_Y2 + 1;
 var SPAN_L_TX = SPAN_L_T + 1;
 var SPAN_L_TY = SPAN_L_TX + 1;
 var SPAN_L_TEND = SPAN_L_TY + 1;
 var SPAN_L_OTHER = SPAN_L_TEND + 1;
 var SPAN_L_OTHERT = SPAN_L_OTHER + 1;
 var SPAN_L_OTHERI = SPAN_L_OTHERT + 1;
 var SPAN_L_SUM = SPAN_L_OTHERI + 1;
 var SPAN_L_VAL = SPAN_L_SUM + 1;
 var SPAN_L_OPP = SPAN_L_VAL + 1;

 var SPAN_X3 = SPAN_Y2 + 1;
 var SPAN_Y3 = SPAN_X3 + 1;
 var SPAN_Q_T = SPAN_Y3 + 1;
 var SPAN_Q_TX = SPAN_Q_T + 1;
 var SPAN_Q_TY = SPAN_Q_TX + 1;
 var SPAN_Q_TEND = SPAN_Q_TY + 1;
 var SPAN_Q_OTHER = SPAN_Q_TEND + 1;
 var SPAN_Q_OTHERT = SPAN_Q_OTHER + 1;
 var SPAN_Q_OTHERI = SPAN_Q_OTHERT + 1;
 var SPAN_Q_SUM = SPAN_Q_OTHERI + 1;
 var SPAN_Q_VAL = SPAN_Q_SUM + 1;
 var SPAN_Q_OPP = SPAN_Q_VAL + 1;

 var SPAN_X4 = SPAN_Y3 + 1;
 var SPAN_Y4 = SPAN_X4 + 1;
 var SPAN_C_T = SPAN_Y4 + 1;
 var SPAN_C_TX = SPAN_C_T + 1;
 var SPAN_C_TY = SPAN_C_TX + 1;
 var SPAN_C_TEND = SPAN_C_TY + 1;
 var SPAN_C_OTHER = SPAN_C_TEND + 1;
 var SPAN_C_OTHERT = SPAN_C_OTHER + 1;
 var SPAN_C_OTHERI = SPAN_C_OTHERT + 1;
 var SPAN_C_SUM = SPAN_C_OTHERI + 1;
 var SPAN_C_VAL = SPAN_C_SUM + 1;
 var SPAN_C_OPP = SPAN_C_VAL + 1;

 var ACTIVE_LINE_SPAN =        1;
 var ACTIVE_QUAD_SPAN =        ACTIVE_LINE_SPAN + 1;
 var ACTIVE_CUBIC_SPAN =       ACTIVE_QUAD_SPAN + 1;

 var ADD_MOVETO =              ACTIVE_CUBIC_SPAN + 1;
 var ADD_LINETO =              ADD_MOVETO + 1;
 var ADD_QUADTO =              ADD_LINETO + 1;
 var ADD_CUBICTO =             ADD_QUADTO + 1;
 var ADD_CLOSE =               ADD_CUBICTO + 1;

 var PATH_LINE =               ADD_CLOSE + 1;
 var PATH_QUAD =               PATH_LINE + 1;
 var PATH_CUBIC =              PATH_QUAD + 1;

 var INTERSECT_LINE =          PATH_CUBIC + 1;
 var INTERSECT_LINE_2 =        INTERSECT_LINE + 1;
 var INTERSECT_LINE_NO =       INTERSECT_LINE_2 + 1;
 var INTERSECT_QUAD_LINE =     INTERSECT_LINE_NO + 1;
 var INTERSECT_QUAD_LINE_2 =   INTERSECT_QUAD_LINE + 1;
 var INTERSECT_QUAD_LINE_NO =  INTERSECT_QUAD_LINE_2 + 1;
 var INTERSECT_QUAD =          INTERSECT_QUAD_LINE_NO + 1;
 var INTERSECT_QUAD_2 =        INTERSECT_QUAD + 1;
 var INTERSECT_QUAD_NO =       INTERSECT_QUAD_2 + 1;
 var INTERSECT_SELF_CUBIC =    INTERSECT_QUAD_NO + 1;
 var INTERSECT_SELF_CUBIC_NO = INTERSECT_SELF_CUBIC + 1;
 var INTERSECT_CUBIC_LINE =    INTERSECT_SELF_CUBIC_NO + 1;
 var INTERSECT_CUBIC_LINE_2 =  INTERSECT_CUBIC_LINE + 1;
 var INTERSECT_CUBIC_LINE_3 =  INTERSECT_CUBIC_LINE_2 + 1;
 var INTERSECT_CUBIC_LINE_NO = INTERSECT_CUBIC_LINE_3 + 1;
 // FIXME: add cubic/quad
 var INTERSECT_CUBIC =         INTERSECT_CUBIC_LINE_NO + 1;
 var INTERSECT_CUBIC_2 =       INTERSECT_CUBIC + 1;
 var INTERSECT_CUBIC_3 =       INTERSECT_CUBIC_2 + 1;
 var INTERSECT_CUBIC_4 =       INTERSECT_CUBIC_3 + 1;
 // FIXME: add cubic 5- 9
 var INTERSECT_CUBIC_NO =      INTERSECT_CUBIC_4 + 1;

 var SORT_LINE =               INTERSECT_CUBIC_NO + 1;
 var SORT_QUAD =               SORT_LINE + 1;
 var SORT_CUBIC =              SORT_QUAD + 1;

 var SORT_LINE_UNSORTABLE =    SORT_CUBIC + 1;
 var SORT_QUAD_UNSORTABLE =    SORT_LINE_UNSORTABLE + 1;
 var SORT_CUBIC_UNSORTABLE =   SORT_QUAD_UNSORTABLE + 1;

 var SORT_LINE_COMPACT =       SORT_CUBIC_UNSORTABLE + 1;
 var SORT_QUAD_COMPACT =       SORT_LINE_COMPACT + 1;
 var SORT_CUBIC_COMPACT =      SORT_QUAD_COMPACT + 1;

 var OP_DIFFERENCE =           SORT_CUBIC_COMPACT + 1;
 var OP_INTERSECT =            OP_DIFFERENCE + 1;
 var OP_UNION =                OP_INTERSECT + 1;
 var OP_XOR =                  OP_UNION + 1;

 var MARK_LINE =               OP_XOR + 1;
 var MARK_QUAD =               MARK_LINE + 1;
 var MARK_CUBIC =              MARK_QUAD + 1;
 var MARK_DONE_LINE =          MARK_CUBIC + 1;
 var MARK_DONE_QUAD =          MARK_DONE_LINE + 1;
 var MARK_DONE_CUBIC =         MARK_DONE_QUAD + 1;
 var MARK_UNSORTABLE_LINE =    MARK_DONE_CUBIC + 1;
 var MARK_UNSORTABLE_QUAD =    MARK_UNSORTABLE_LINE + 1;
 var MARK_UNSORTABLE_CUBIC =   MARK_UNSORTABLE_QUAD + 1;
 var MARK_SIMPLE_LINE =        MARK_UNSORTABLE_CUBIC + 1;
 var MARK_SIMPLE_QUAD =        MARK_SIMPLE_LINE + 1;
 var MARK_SIMPLE_CUBIC =       MARK_SIMPLE_QUAD + 1;
 var MARK_SIMPLE_DONE_LINE =   MARK_SIMPLE_CUBIC + 1;
 var MARK_SIMPLE_DONE_QUAD =   MARK_SIMPLE_DONE_LINE + 1;
 var MARK_SIMPLE_DONE_CUBIC =  MARK_SIMPLE_DONE_QUAD + 1;
 var MARK_DONE_UNARY_LINE =    MARK_SIMPLE_DONE_CUBIC + 1;
 var MARK_DONE_UNARY_QUAD =    MARK_DONE_UNARY_LINE + 1;
 var MARK_DONE_UNARY_CUBIC =   MARK_DONE_UNARY_QUAD + 1;

 var COMPUTED_SET_1 =          MARK_DONE_UNARY_CUBIC + 1;
 var COMPUTED_SET_2 =          COMPUTED_SET_1 + 1;
 var FRAG_TYPE_LAST =          COMPUTED_SET_2;

 var REC_TYPE_UNKNOWN = -1;
 var REC_TYPE_PATH = 0;
 var REC_TYPE_SECT = 1;
 var REC_TYPE_ACTIVE = 2;
 var REC_TYPE_ADD = 3;
 var REC_TYPE_SORT = 4;
 var REC_TYPE_OP = 5;
 var REC_TYPE_MARK = 6;
 var REC_TYPE_COMPUTED = 7;
 var REC_TYPE_COIN = 8;
 var REC_TYPE_LAST = REC_TYPE_COIN;

 function strs_to_nums(strs) {
     var result = [];
     for (var idx = 1; idx < strs.length; ++idx) {
         var str = strs[idx];
         var num = parseFloat(str);
         if (isNaN(num)) {
             result.push(str);
         } else {
             result.push(num);
         }
     }
     return result;
 }

 function filter_str_by(id, str, regex, array) {
     if (regex.test(str)) {
         var strs = regex.exec(str);
         var result = strs_to_nums(strs);
         array.push(id);
         array.push(result);
         return true;
     }
     return false;
 }

 function construct_regexp2(pattern) {
     var escape = pattern.replace(/[-/\\^$*+?.()|[\]{}]/g, '\\$&');
     escape = escape.replace(/UNSORTABLE/g, "\\*\\*\\* UNSORTABLE \\*\\*\\*");
     escape = escape.replace(/CUBIC_VAL/g, "\\(P_VAL P_VAL P_VAL P_VAL\\)");
     escape = escape.replace(/QUAD_VAL/g, "\\(P_VAL P_VAL P_VAL\\)");
     escape = escape.replace(/LINE_VAL/g, "\\(P_VAL P_VAL\\)");
     escape = escape.replace(/PT_VAL/g, "\\(P_VAL\\)");
     escape = escape.replace(/P_VAL/g, "(-?\\d+\\.?\\d*(?:e-?\\d+)?),(-?\\d+\\.?\\d*(?:e-?\\d+)?)");
     escape = escape.replace(/T_VAL/g, "(-?\\d+\\.?\\d*(?:e-?\\d+)?)");
     escape = escape.replace(/IDX/g, "(\\d+)");
     escape = escape.replace(/NUM/g, "(-?\\d+)");
     escape = escape.replace(/OPT/g, "(\\?|-?\\d+)");
     return new RegExp(escape, 'i');
 }

 function construct_regexp2c(pattern) {
     var escape = pattern.replace(/[-/\\^$*+?.()|[\]{}]/g, '\\$&');
     escape = escape.replace(/UNSORTABLE/g, "\\*\\*\\* UNSORTABLE \\*\\*\\*");
     escape = escape.replace(/CUBIC_VAL/g, "(?:\\$\\d = )?\\{\\{P_VAL\\}, \\{P_VAL\\}, \\{P_VAL\\}, \\{P_VAL\\}\\}");
     escape = escape.replace(/QUAD_VAL/g, "(?:\\$\\d = )?\\{\\{P_VAL\\}, \\{P_VAL\\}, \\{P_VAL\\}\\}");
     escape = escape.replace(/LINE_VAL/g, "(?:\\$\\d = )?\\{\\{P_VAL\\}, \\{P_VAL\\}\\}");
     escape = escape.replace(/PT_VAL/g, "\\{\\{P_VAL\\}\\}");
     escape = escape.replace(/P_VAL/g, "(?:f?[xX] = )?(-?\\d+\\.?\\d*(?:e-?\\d+)?),(?: f?[yY] = )?(-?\\d+\\.?\\d*(?:e-?\\d+)?)");
     escape = escape.replace(/T_VAL/g, "(-?\\d+\\.?\\d*(?:e-?\\d+)?)");
     escape = escape.replace(/IDX/g, "(\\d+)");
     escape = escape.replace(/NUM/g, "(-?\\d+)");
     escape = escape.replace(/OPT/g, "(\\?|-?\\d+)");
     return new RegExp(escape, 'i');
 }

 function match_regexp(str, lineNo, array, id, pattern) {
     var regex = construct_regexp2(pattern);
     if (filter_str_by(id, str, regex, array)) {
         return true;
     }
     regex = construct_regexp2c(pattern);
     return filter_str_by(id, str, regex, array);
 }

 function parse_all(test) {
     var lines = test.match(/[^\r\n]+/g);
     var records = []; // a rec can be the original paths, a set of intersections, a set of active spans, a sort, or a path add
     var record = [];
     var recType = REC_TYPE_UNKNOWN;
     var lastLineNo;
     var moveX, moveY;
     for (var lineNo = 0; lineNo < lines.length; ++lineNo) {
         var line = lines[lineNo];
         if (line.length == 0) {
             continue;
         }
         var opStart = "SkOpSegment::";
         if (line.lastIndexOf(opStart, 0) === 0) {
             line = line.substr(opStart.length);
         }
         var type = line.lastIndexOf("debugShowSort", 0) === 0 ? REC_TYPE_SORT
                 : line.lastIndexOf("debugShowActiveSpans", 0) === 0 ? REC_TYPE_ACTIVE
                 : line.lastIndexOf("debugShowTs", 0) === 0 ? REC_TYPE_COIN
                 : line.lastIndexOf("debugShow", 0) === 0 ? REC_TYPE_SECT
                 : line.lastIndexOf("computed", 0) === 0 ? REC_TYPE_COMPUTED
                 : line.lastIndexOf("path.", 0) === 0 ? REC_TYPE_ADD
                 : line.lastIndexOf("mark", 0) === 0 ? REC_TYPE_MARK
                 : line.lastIndexOf("  {{", 0) === 0 ? REC_TYPE_COMPUTED
                 : line.lastIndexOf("{{", 0) === 0 ? REC_TYPE_PATH
                 : line.lastIndexOf("op", 0) === 0 ? REC_TYPE_OP
                 : line.lastIndexOf("$", 0) === 0 ? REC_TYPE_PATH
                 : REC_TYPE_UNKNOWN;
         if (recType != type || recType == REC_TYPE_ADD || recType == REC_TYPE_SECT) {
             if (recType != REC_TYPE_UNKNOWN) {
                 records.push(recType);
                 records.push(lastLineNo);
                 records.push(record);
             }
             record = [];
             recType = type;
             lastLineNo = lineNo;
         }
         var found = false;
         switch (recType) {
             case REC_TYPE_ACTIVE:
                 found = match_regexp(line, lineNo, record, ACTIVE_LINE_SPAN, "debugShowActiveSpans" +
 " id=IDX LINE_VAL t=T_VAL PT_VAL tEnd=T_VAL other=IDX otherT=T_VAL otherIndex=IDX windSum=OPT windValue=IDX oppValue=IDX"
                 ) || match_regexp(line, lineNo, record, ACTIVE_QUAD_SPAN, "debugShowActiveSpans" +
 " id=IDX QUAD_VAL t=T_VAL PT_VAL tEnd=T_VAL other=IDX otherT=T_VAL otherIndex=IDX windSum=OPT windValue=IDX oppValue=IDX"
                 ) || match_regexp(line, lineNo, record, ACTIVE_CUBIC_SPAN, "debugShowActiveSpans" +
 " id=IDX CUBIC_VAL t=T_VAL PT_VAL tEnd=T_VAL other=IDX otherT=T_VAL otherIndex=IDX windSum=OPT windValue=IDX oppValue=IDX"
                 );
                 break;
             case REC_TYPE_ADD:
                 if (match_regexp(line, lineNo, record, ADD_MOVETO, "path.moveTo(P_VAL);")) {
                     moveX = record[1][0];
                     moveY = record[1][1];
                     found = true;
                 } else if (match_regexp(line, lineNo, record, ADD_LINETO, "path.lineTo(P_VAL);")) {
                     record[1].unshift(moveY);
                     record[1].unshift(moveX);
                     moveX = record[1][2];
                     moveY = record[1][3];
                     found = true;
                 } else if (match_regexp(line, lineNo, record, ADD_QUADTO, "path.quadTo(P_VAL, P_VAL);")) {
                     record[1].unshift(moveY);
                     record[1].unshift(moveX);
                     moveX = record[1][4];
                     moveY = record[1][5];
                     found = true;
                 } else if (match_regexp(line, lineNo, record, ADD_CUBICTO, "path.cubicTo(P_VAL, P_VAL, P_VAL);")) {
                     record[1].unshift(moveY);
                     record[1].unshift(moveX);
                     moveX = record[1][6];
                     moveY = record[1][7];
                     found = true;
                 } else {
                     found = match_regexp(line, lineNo, record, ADD_CLOSE, "path.close();");
                 }
                 break;
             case REC_TYPE_COIN:
                 found = true;
                 break;
             case REC_TYPE_COMPUTED:
                 found = line ==  "computed quadratics given"
                   || match_regexp(line, lineNo, record, COMPUTED_SET_1, "computed quadratics set 1"
                 ) || match_regexp(line, lineNo, record, COMPUTED_SET_2, "computed quadratics set 2"
                 ) || match_regexp(line, lineNo, record, PATH_QUAD, "  QUAD_VAL,"
                 ) || match_regexp(line, lineNo, record, PATH_CUBIC, "  CUBIC_VAL,"
                 );
                 break;
             case REC_TYPE_PATH:
                 found = match_regexp(line, lineNo, record, PATH_LINE, "LINE_VAL"
                 ) || match_regexp(line, lineNo, record, PATH_QUAD, "QUAD_VAL"
                 ) || match_regexp(line, lineNo, record, PATH_CUBIC, "CUBIC_VAL"
                 );
                 break;
             case REC_TYPE_SECT:
                 found = match_regexp(line, lineNo, record, INTERSECT_LINE, "debugShowLineIntersection" +
 " wtTs[0]=T_VAL LINE_VAL PT_VAL wnTs[0]=T_VAL LINE_VAL"
                 ) || match_regexp(line, lineNo, record, INTERSECT_LINE_2, "debugShowLineIntersection" +
 " wtTs[0]=T_VAL LINE_VAL PT_VAL wtTs[1]=T_VAL PT_VAL wnTs[0]=T_VAL LINE_VAL wnTs[1]=T_VAL"
                 ) || match_regexp(line, lineNo, record, INTERSECT_LINE_NO, "debugShowLineIntersection" +
 " no intersect LINE_VAL LINE_VAL"
                 ) || match_regexp(line, lineNo, record, INTERSECT_QUAD_LINE, "debugShowQuadLineIntersection" +
 " wtTs[0]=T_VAL QUAD_VAL PT_VAL wnTs[0]=T_VAL LINE_VAL"
                 ) || match_regexp(line, lineNo, record, INTERSECT_QUAD_LINE_2, "debugShowQuadLineIntersection" +
 " wtTs[0]=T_VAL QUAD_VAL PT_VAL wtTs[1]=T_VAL PT_VAL wnTs[0]=T_VAL LINE_VAL wnTs[1]=T_VAL"
                 ) || match_regexp(line, lineNo, record, INTERSECT_QUAD_LINE_NO, "debugShowQuadLineIntersection" +
 " no intersect QUAD_VAL LINE_VAL"
                 ) || match_regexp(line, lineNo, record, INTERSECT_QUAD, "debugShowQuadIntersection" +
 " wtTs[0]=T_VAL QUAD_VAL PT_VAL wnTs[0]=T_VAL QUAD_VAL"
                 ) || match_regexp(line, lineNo, record, INTERSECT_QUAD_2, "debugShowQuadIntersection" +
 " wtTs[0]=T_VAL QUAD_VAL PT_VAL wtTs[1]=T_VAL wnTs[0]=T_VAL QUAD_VAL wnTs[1]=T_VAL"
                 ) || match_regexp(line, lineNo, record, INTERSECT_QUAD_NO, "debugShowQuadIntersection" +
 " no intersect QUAD_VAL QUAD_VAL"
                 ) || match_regexp(line, lineNo, record, INTERSECT_CUBIC_LINE, "debugShowCubicLineIntersection" +
 " wtTs[0]=T_VAL CUBIC_VAL PT_VAL wnTs[0]=T_VAL LINE_VAL"
                 ) || match_regexp(line, lineNo, record, INTERSECT_CUBIC_LINE_2, "debugShowCubicLineIntersection" +
 " wtTs[0]=T_VAL CUBIC_VAL PT_VAL wtTs[1]=T_VAL PT_VAL wnTs[0]=T_VAL LINE_VAL wnTs[1]=T_VAL"
                 ) || match_regexp(line, lineNo, record, INTERSECT_CUBIC_LINE_3, "debugShowCubicLineIntersection" +
 " wtTs[0]=T_VAL CUBIC_VAL PT_VAL wtTs[1]=T_VAL PT_VAL wtTs[2]=T_VAL PT_VAL wnTs[0]=T_VAL LINE_VAL wnTs[1]=T_VAL wnTs[2]=T_VAL"
                 ) || match_regexp(line, lineNo, record, INTERSECT_CUBIC_LINE_NO, "debugShowCubicLineIntersection" +
 " no intersect CUBIC_VAL LINE_VAL"
                 ) || match_regexp(line, lineNo, record, INTERSECT_CUBIC, "debugShowCubicIntersection" +
 " wtTs[0]=T_VAL CUBIC_VAL PT_VAL wnTs[0]=T_VAL CUBIC_VAL"
                 ) || match_regexp(line, lineNo, record, INTERSECT_CUBIC_2, "debugShowCubicIntersection" +
 " wtTs[0]=T_VAL CUBIC_VAL PT_VAL wtTs[1]=T_VAL PT_VAL wnTs[0]=T_VAL CUBIC_VAL wnTs[1]=T_VAL"
                 ) || match_regexp(line, lineNo, record, INTERSECT_CUBIC_3, "debugShowCubicIntersection" +
 " wtTs[0]=T_VAL CUBIC_VAL PT_VAL wtTs[1]=T_VAL PT_VAL wtTs[2]=T_VAL PT_VAL wnTs[0]=T_VAL CUBIC_VAL wnTs[1]=T_VAL wnTs[2]=T_VAL"
                 ) || match_regexp(line, lineNo, record, INTERSECT_CUBIC_4, "debugShowCubicIntersection" +
 " wtTs[0]=T_VAL CUBIC_VAL PT_VAL wtTs[1]=T_VAL PT_VAL wtTs[2]=T_VAL PT_VAL wtTs[3]=T_VAL PT_VAL wnTs[0]=T_VAL CUBIC_VAL wnTs[1]=T_VAL wnTs[2]=T_VAL wnTs[3]=T_VAL"
                 ) || match_regexp(line, lineNo, record, INTERSECT_CUBIC_NO, "debugShowCubicIntersection" +
 " no intersect CUBIC_VAL CUBIC_VAL"
                 ) || match_regexp(line, lineNo, record, INTERSECT_SELF_CUBIC, "debugShowCubicIntersection" +
 " wtTs[0]=T_VAL CUBIC_VAL PT_VAL wtTs[1]=T_VAL"
                 ) || match_regexp(line, lineNo, record, INTERSECT_SELF_CUBIC_NO, "debugShowCubicIntersection" +
 " no self intersect CUBIC_VAL"
                 );
                 break;
             case REC_TYPE_SORT:
                 found =  match_regexp(line, lineNo, record, SORT_LINE, "debugShowSort" +
 " [IDX] LINE_VAL tStart=T_VAL tEnd=T_VAL sign=NUM windValue=IDX windSum=OPT OPT->OPT (max=OPT) done=IDX tiny=IDX opp=IDX"
                 ) || match_regexp(line, lineNo, record, SORT_QUAD, "debugShowSort" +
 " [IDX] QUAD_VAL tStart=T_VAL tEnd=T_VAL sign=NUM windValue=IDX windSum=OPT OPT->OPT (max=OPT) done=IDX tiny=IDX opp=IDX"
                 ) || match_regexp(line, lineNo, record, SORT_CUBIC, "debugShowSort" +
 " [IDX] CUBIC_VAL tStart=T_VAL tEnd=T_VAL sign=NUM windValue=IDX windSum=OPT OPT->OPT (max=OPT) done=IDX tiny=IDX opp=IDX"
                 ) || match_regexp(line, lineNo, record, SORT_LINE_UNSORTABLE, "debugShowSort" +
 " [IDX] UNSORTABLE LINE_VAL tStart=T_VAL tEnd=T_VAL sign=NUM windValue=IDX windSum=OPT OPT->OPT (max=OPT) done=IDX tiny=IDX opp=IDX"
                 ) || match_regexp(line, lineNo, record, SORT_QUAD_UNSORTABLE, "debugShowSort" +
 " [IDX] UNSORTABLE QUAD_VAL tStart=T_VAL tEnd=T_VAL sign=NUM windValue=IDX windSum=OPT OPT->OPT (max=OPT) done=IDX tiny=IDX opp=IDX"
                 ) || match_regexp(line, lineNo, record, SORT_CUBIC_UNSORTABLE, "debugShowSort" +
 " [IDX] UNSORTABLE CUBIC_VAL tStart=T_VAL tEnd=T_VAL sign=NUM windValue=IDX windSum=OPT OPT->OPT (max=OPT) done=IDX tiny=IDX opp=IDX"
                 ) || match_regexp(line, lineNo, record, SORT_LINE_COMPACT, "debugShowSort" +
 " [IDX] id=IDX line start=IDX PT_VAL end=IDX PT_VAL sign=NUM windValue=IDX windSum=OPT OPT->OPT (max=OPT) done=IDX tiny=IDX opp=IDX"
                 ) || match_regexp(line, lineNo, record, SORT_QUAD_COMPACT, "debugShowSort" +
 " [IDX] id=IDX quad start=IDX PT_VAL end=IDX PT_VAL sign=NUM windValue=IDX windSum=OPT OPT->OPT (max=OPT) done=IDX tiny=IDX opp=IDX"
                 ) || match_regexp(line, lineNo, record, SORT_CUBIC_COMPACT, "debugShowSort" +
 " [IDX] id=IDX cubic start=IDX PT_VAL end=IDX PT_VAL sign=NUM windValue=IDX windSum=OPT OPT->OPT (max=OPT) done=IDX tiny=IDX opp=IDX"
                 );
                 break;
             case REC_TYPE_MARK:
                 found =  match_regexp(line, lineNo, record, MARK_LINE, "markWinding" +
 " id=IDX LINE_VAL t=T_VAL [IDX] PT_VAL tEnd=T_VAL newWindSum=NUM newOppSum=NUM oppSum=OPT windSum=OPT windValue=IDX"
                 ) || match_regexp(line, lineNo, record, MARK_QUAD, "markWinding" +
 " id=IDX QUAD_VAL t=T_VAL [IDX] PT_VAL tEnd=T_VAL newWindSum=NUM newOppSum=NUM oppSum=OPT windSum=OPT windValue=IDX"
                 ) || match_regexp(line, lineNo, record, MARK_CUBIC, "markWinding" +
 " id=IDX CUBIC_VAL t=T_VAL [IDX] PT_VAL tEnd=T_VAL newWindSum=NUM newOppSum=NUM oppSum=OPT windSum=OPT windValue=IDX"
                 ) || match_regexp(line, lineNo, record, MARK_DONE_LINE, "markDoneBinary" +
 " id=IDX LINE_VAL t=T_VAL [IDX] PT_VAL tEnd=T_VAL newWindSum=NUM newOppSum=NUM oppSum=OPT windSum=OPT windValue=IDX"
                 ) || match_regexp(line, lineNo, record, MARK_DONE_QUAD, "markDoneBinary" +
 " id=IDX QUAD_VAL t=T_VAL [IDX] PT_VAL tEnd=T_VAL newWindSum=NUM newOppSum=NUM oppSum=OPT windSum=OPT windValue=IDX"
                 ) || match_regexp(line, lineNo, record, MARK_DONE_CUBIC, "markDoneBinary" +
 " id=IDX CUBIC_VAL t=T_VAL [IDX] PT_VAL tEnd=T_VAL newWindSum=NUM newOppSum=NUM oppSum=OPT windSum=OPT windValue=IDX"
                 ) || match_regexp(line, lineNo, record, MARK_UNSORTABLE_LINE, "markUnsortable" +
 " id=IDX LINE_VAL t=T_VAL [IDX] PT_VAL tEnd=T_VAL newWindSum=NUM windSum=OPT windValue=IDX"
                 ) || match_regexp(line, lineNo, record, MARK_UNSORTABLE_QUAD, "markUnsortable" +
 " id=IDX QUAD_VAL t=T_VAL [IDX] PT_VAL tEnd=T_VAL newWindSum=NUM windSum=OPT windValue=IDX"
                 ) || match_regexp(line, lineNo, record, MARK_UNSORTABLE_CUBIC, "markUnsortable" +
 " id=IDX CUBIC_VAL t=T_VAL [IDX] PT_VAL tEnd=T_VAL newWindSum=NUM windSum=OPT windValue=IDX"
                 ) || match_regexp(line, lineNo, record, MARK_SIMPLE_LINE, "markWinding" +
 " id=IDX LINE_VAL t=T_VAL [IDX] PT_VAL tEnd=T_VAL newWindSum=NUM windSum=OPT windValue=IDX"
                 ) || match_regexp(line, lineNo, record, MARK_SIMPLE_QUAD, "markWinding" +
 " id=IDX QUAD_VAL t=T_VAL [IDX] PT_VAL tEnd=T_VAL newWindSum=NUM windSum=OPT windValue=IDX"
                 ) || match_regexp(line, lineNo, record, MARK_SIMPLE_CUBIC, "markWinding" +
 " id=IDX CUBIC_VAL t=T_VAL [IDX] PT_VAL tEnd=T_VAL newWindSum=NUM windSum=OPT windValue=IDX"
                 ) || match_regexp(line, lineNo, record, MARK_SIMPLE_DONE_LINE, "markDone" +
 " id=IDX LINE_VAL t=T_VAL [IDX] PT_VAL tEnd=T_VAL newWindSum=NUM windSum=OPT windValue=IDX"
                 ) || match_regexp(line, lineNo, record, MARK_SIMPLE_DONE_QUAD, "markDone" +
 " id=IDX QUAD_VAL t=T_VAL [IDX] PT_VAL tEnd=T_VAL newWindSum=NUM windSum=OPT windValue=IDX"
                 ) || match_regexp(line, lineNo, record, MARK_SIMPLE_DONE_CUBIC, "markDone" +
 " id=IDX CUBIC_VAL t=T_VAL [IDX] PT_VAL tEnd=T_VAL newWindSum=NUM windSum=OPT windValue=IDX"
                 ) || match_regexp(line, lineNo, record, MARK_DONE_UNARY_LINE, "markDoneUnary" +
 " id=IDX LINE_VAL t=T_VAL [IDX] PT_VAL tEnd=T_VAL newWindSum=NUM windSum=OPT windValue=IDX"
                 ) || match_regexp(line, lineNo, record, MARK_DONE_UNARY_QUAD, "markDoneUnary" +
 " id=IDX QUAD_VAL t=T_VAL [IDX] PT_VAL tEnd=T_VAL newWindSum=NUM windSum=OPT windValue=IDX"
                 ) || match_regexp(line, lineNo, record, MARK_DONE_UNARY_CUBIC, "markDoneUnary" +
 " id=IDX CUBIC_VAL t=T_VAL [IDX] PT_VAL tEnd=T_VAL newWindSum=NUM windSum=OPT windValue=IDX"
                 );
                 break;
             case REC_TYPE_OP:
                 found = match_regexp(line, lineNo, record, OP_DIFFERENCE, "op difference"
                 ) || match_regexp(line, lineNo, record, OP_INTERSECT, "op intersect"
                 ) || match_regexp(line, lineNo, record, OP_UNION, "op union"
                 ) || match_regexp(line, lineNo, record, OP_XOR, "op xor"
                 );
                 break;
             case REC_TYPE_UNKNOWN:
                 found = true;
                 break;
         }
         if (!found) {
             console.log(line + " [" + lineNo + "] of type " + type + " not found");
         }
     }
     if (recType != REC_TYPE_UNKNOWN) {
         records.push(recType);
         records.push(lastLineNo);
         records.push(record);
     }
     if (records.length >= 1) {
         tests[testIndex] = records;
         testLines[testIndex] = lines;
     }
 }

 function init(test) {
     var canvas = document.getElementById('canvas');
     if (!canvas.getContext) return;
     screenWidth = canvas.width = window.innerWidth - 20;
     screenHeight = canvas.height = window.innerHeight - 20;
     ctx = canvas.getContext('2d');
     xmin = Infinity;
     xmax = -Infinity;
     ymin = Infinity;
     ymax = -Infinity;
     hasPath = hasComputedPath = false;
     for (var testIndex = 0; testIndex < test.length; testIndex += 3) {
         var recType = test[testIndex];
         if (!typeof recType == 'number' || recType < REC_TYPE_UNKNOWN || recType > REC_TYPE_LAST) {
             console.log("unknown rec type: " + recType);
             throw "stop execution";
         }
         var records = test[testIndex + 2];
         for (var recordIndex = 0; recordIndex < records.length; recordIndex += 2) {
             var fragType = records[recordIndex];
             if (!typeof fragType == 'number' || fragType < 1 || fragType > FRAG_TYPE_LAST) {
                 console.log("unknown in range frag type: " + fragType);
                 throw "stop execution";
             }
             var frags = records[recordIndex + 1];
             var first = 0;
             var last = -1;
             var first2 = 0;
             var last2 = 0;
             switch (recType) {
                 case REC_TYPE_COMPUTED:
                     if (fragType == COMPUTED_SET_1 || fragType == COMPUTED_SET_2) {
                         break;
                     }
                     hasComputedPath = true;
                 case REC_TYPE_PATH:
                     switch (fragType) {
                         case PATH_LINE:
                             last = 4;
                             break;
                         case PATH_QUAD:
                             last = 6;
                             break;
                         case PATH_CUBIC:
                             last = 8;
                             break;
                         default:
                             console.log("unknown " + (recType == REC_TYPE_PATH ? "REC_TYPE_PATH"
                                     : "REC_TYPE_COMPUTED") + " frag type:" + fragType);
                             throw "stop execution";
                     }
                     if (recType == REC_TYPE_PATH) {
                         hasPath = true;
                     }
                     break;
                 case REC_TYPE_ACTIVE:
                     first = 1;
                     switch (fragType) {
                         case ACTIVE_LINE_SPAN:
                             last = 5;
                             break;
                         case ACTIVE_QUAD_SPAN:
                             last = 7;
                             break;
                         case ACTIVE_CUBIC_SPAN:
                             last = 9;
                             break;
                         default:
                             console.log("unknown REC_TYPE_ACTIVE frag type: " + fragType);
                             throw "stop execution";
                     }
                     break;
                 case REC_TYPE_ADD:
                     switch (fragType) {
                         case ADD_MOVETO:
                             break;
                         case ADD_LINETO:
                             last = 4;
                             break;
                         case ADD_QUADTO:
                             last = 6;
                             break;
                         case ADD_CUBICTO:
                             last = 8;
                             break;
                         case ADD_CLOSE:
                             break;
                         default:
                             console.log("unknown REC_TYPE_ADD frag type: " + fragType);
                             throw "stop execution";
                     }
                     break;
                 case REC_TYPE_SECT:
                     switch (fragType) {
                         case INTERSECT_LINE:
                             first = 1; last = 5; first2 = 8; last2 = 12;
                             break;
                         case INTERSECT_LINE_2:
                             first = 1; last = 5; first2 = 11; last2 = 15;
                             break;
                         case INTERSECT_LINE_NO:
                             first = 0; last = 4; first2 = 4; last2 = 8;
                             break;
                         case INTERSECT_QUAD_LINE:
                             first = 1; last = 7; first2 = 10; last2 = 14;
                             break;
                         case INTERSECT_QUAD_LINE_2:
                             first = 1; last = 7; first2 = 13; last2 = 17;
                             break;
                         case INTERSECT_QUAD_LINE_NO:
                             first = 0; last = 6; first2 = 6; last2 = 10;
                             break;
                         case INTERSECT_QUAD:
                             first = 1; last = 7; first2 = 10; last2 = 16;
                             break;
                         case INTERSECT_QUAD_2:
                             first = 1; last = 7; first2 = 13; last2 = 19;
                             break;
                         case INTERSECT_QUAD_NO:
                             first = 0; last = 6; first2 = 6; last2 = 12;
                             break;
                         case INTERSECT_SELF_CUBIC:
                             first = 1; last = 9;
                             break;
                         case INTERSECT_SELF_CUBIC_NO:
                             first = 0; last = 8;
                             break;
                         case INTERSECT_CUBIC_LINE:
                             first = 1; last = 9; first2 = 12; last2 = 16;
                             break;
                         case INTERSECT_CUBIC_LINE_2:
                             first = 1; last = 9; first2 = 15; last2 = 19;
                             break;
                         case INTERSECT_CUBIC_LINE_3:
                             first = 1; last = 9; first2 = 18; last2 = 22;
                             break;
                         case INTERSECT_CUBIC_LINE_NO:
                             first = 0; last = 8; first2 = 8; last2 = 12;
                             break;
                         case INTERSECT_CUBIC:
                             first = 1; last = 9; first2 = 12; last2 = 20;
                             break;
                         case INTERSECT_CUBIC_2:
                             first = 1; last = 9; first2 = 15; last2 = 23;
                             break;
                         case INTERSECT_CUBIC_3:
                             first = 1; last = 9; first2 = 18; last2 = 26;
                             break;
                         case INTERSECT_CUBIC_4:
                             first = 1; last = 9; first2 = 21; last2 = 29;
                             break;
                         case INTERSECT_CUBIC_NO:
                             first = 0; last = 8; first2 = 8; last2 = 16;
                             break;
                         default:
                             console.log("unknown REC_TYPE_SECT frag type: " + fragType);
                             throw "stop execution";
                     }
                     break;
                 default:
                     continue;
             }
             for (var idx = first; idx < last; idx += 2) {
                 xmin = Math.min(xmin, frags[idx]);
                 xmax = Math.max(xmax, frags[idx]);
                 ymin = Math.min(ymin, frags[idx + 1]);
                 ymax = Math.max(ymax, frags[idx + 1]);
             }
             for (var idx = first2; idx < last2; idx += 2) {
                 xmin = Math.min(xmin, frags[idx]);
                 xmax = Math.max(xmax, frags[idx]);
                 ymin = Math.min(ymin, frags[idx + 1]);
                 ymax = Math.max(ymax, frags[idx + 1]);
             }
         }
     }
     setScale();
     if (hasPath == false && hasComputedPath == true && !draw_computed) {
         draw_computed = 3; // show both quadratics and cubics
     }
     if (hasPath == true && hasComputedPath == false && draw_computed) {
         draw_computed = 0;
     }
 }

 function setScale() {
     var srcWidth = xmax - xmin;
     var srcHeight = ymax - ymin;
     var hscale = ctx.canvas.width / srcWidth;
     var vscale = ctx.canvas.height / srcHeight;
     scale = Math.min(hscale, vscale);
     var invScale = 1 / scale;
     var sxmin = xmin - invScale * 5;
     var symin = ymin - invScale * 10;
     var sxmax = xmax + invScale * (6 * decimal_places + 10);
     var symax = ymax + invScale * 10;
     srcWidth = sxmax - sxmin;
     srcHeight = symax - symin;
     hscale = ctx.canvas.width / srcWidth;
     vscale = ctx.canvas.height / srcHeight;
     scale = Math.min(hscale, vscale);
     srcLeft = sxmin;
     srcTop = symin;
 }

 function drawPoint(px, py, end) {
     for (var pts = 0; pts < drawnPts.length; pts += 2) {
         var x = drawnPts[pts];
         var y = drawnPts[pts + 1];
         if (px == x && py == y) {
             return;
         }
     }
     drawnPts.push(px);
     drawnPts.push(py);
     var label = px.toFixed(decimal_places) + ", " + py.toFixed(decimal_places);
     var _px = (px - srcLeft) * scale;
     var _py = (py - srcTop) * scale;
     ctx.beginPath();
     ctx.arc(_px, _py, 3, 0, Math.PI*2, true);
     ctx.closePath();
     if (end) {
         ctx.fill();
     } else {
         ctx.stroke();
     }
     ctx.textAlign = "left";
     ctx.fillText(label, _px + 5, _py);
 }

 function drawPoints(ptArray, curveType, drawControls) {
     var count = (curveType - PATH_LINE + 2) * 2;
     for (var idx = 0; idx < count; idx += 2) {
         if (!drawControls && idx != 0 && idx != count - 2) {
             continue;
         }
         drawPoint(ptArray[idx], ptArray[idx + 1], idx == 0 || idx == count - 2);
     }
 }

 function drawControlLines(curve, curveType, drawEnd) {
     if (curveType == PATH_LINE) {
         return;
     }
     ctx.strokeStyle = "rgba(0,0,0, 0.3)";
     drawLine(curve[0], curve[1], curve[2], curve[3]);
     drawLine(curve[2], curve[3], curve[4], curve[5]);
     if (curveType == PATH_CUBIC) {
         drawLine(curve[4], curve[5], curve[6], curve[7]);
         if (drawEnd > 1) {
             drawLine(curve[6], curve[7], curve[0], curve[1]);
             if (drawEnd > 2) {
                 drawLine(curve[0], curve[1], curve[4], curve[5]);
                 drawLine(curve[6], curve[7], curve[2], curve[3]);
             }
         }
     } else if (drawEnd > 1) {
         drawLine(curve[4], curve[5], curve[0], curve[1]);
     }
 }

 function pointAtT(curve, curveType, t) {
     var xy = {};
     switch (curveType) {
         case PATH_LINE:
             var a = 1 - t;
             var b = t;
             xy.x = a * curve[0] + b * curve[2];
             xy.y = a * curve[1] + b * curve[3];
             break;
         case PATH_QUAD:
             var one_t = 1 - t;
             var a = one_t * one_t;
             var b = 2 * one_t * t;
             var c = t * t;
             xy.x = a * curve[0] + b * curve[2] + c * curve[4];
             xy.y = a * curve[1] + b * curve[3] + c * curve[5];
             break;
         case PATH_CUBIC:
             var one_t = 1 - t;
             var one_t2 = one_t * one_t;
             var a = one_t2 * one_t;
             var b = 3 * one_t2 * t;
             var t2 = t * t;
             var c = 3 * one_t * t2;
             var d = t2 * t;
             xy.x = a * curve[0] + b * curve[2] + c * curve[4] + d * curve[6];
             xy.y = a * curve[1] + b * curve[3] + c * curve[5] + d * curve[7];
             break;
     }
     return xy;
 }

 function drawPointAtT(curve, curveType) {
     var x, y;
     var xy = pointAtT(curve, curveType, curveT);
     drawPoint(xy.x, xy.y, true);
     if (!draw_intersectT) {
         return;
     }
     ctx.fillStyle = "red";
     drawTAtPointUp(xy.x, xy.y, curveT);
 }

 function drawTAtPointUp(px, py, t) {
     var label = t.toFixed(decimal_places);
     var _px = (px - srcLeft)* scale;
     var _py = (py - srcTop) * scale;
     ctx.fillText(label, _px + 5, _py - 10);
 }

 function drawTAtPointDown(px, py, t) {
     var label = t.toFixed(decimal_places);
     var _px = (px - srcLeft)* scale;
     var _py = (py - srcTop) * scale;
     ctx.fillText(label, _px + 5, _py + 10);
 }

 function alreadyDrawnLine(x1, y1, x2, y2) {
     for (var pts = 0; pts < drawnLines.length; pts += 4) {
         if (x1 == drawnLines[pts] && y1 == drawnLines[pts + 1]
                 && x2 == drawnLines[pts + 2] && y2 == drawnLines[pts + 3]) {
             return true;
         }
     }
     drawnLines.push(x1);
     drawnLines.push(y1);
     drawnLines.push(x2);
     drawnLines.push(y2);
     return false;
 }

 function drawLine(x1, y1, x2, y2) {
     if (alreadyDrawnLine(x1, y1, x2, y2)) {
         return;
     }
     ctx.beginPath();
     ctx.moveTo((x1 - srcLeft) * scale,
             (y1 - srcTop) * scale);
     ctx.lineTo((x2 - srcLeft) * scale,
             (y2 - srcTop) * scale);
     ctx.stroke();
 }

 function linePartial(x1, y1, x2, y2, t1, t2) {
     var dx = x1 - x2;
     var dy = y1 - y2;
     var array = [
         x1 - t1 * dx,
         y1 - t1 * dy,
         x1 - t2 * dx,
         y1 - t2 * dy
     ];
     return array;
 }

 function drawLinePartial(x1, y1, x2, y2, t1, t2) {
     var a = linePartial(x1, y1, x2, y2, t1, t2);
     var ax = a[0];
     var ay = a[1];
     var bx = a[2];
     var by = a[3];
     if (alreadyDrawnLine(ax, ay, bx, by)) {
         return;
     }
     ctx.beginPath();
     ctx.moveTo((ax - srcLeft) * scale,
             (ay - srcTop) * scale);
     ctx.lineTo((bx - srcLeft) * scale,
             (by - srcTop) * scale);
     ctx.stroke();
 }

 function alreadyDrawnQuad(x1, y1, x2, y2, x3, y3) {
     for (var pts = 0; pts < drawnQuads.length; pts += 6) {
         if (x1 == drawnQuads[pts] && y1 == drawnQuads[pts + 1]
                 && x2 == drawnQuads[pts + 2] && y2 == drawnQuads[pts + 3]
                 && x3 == drawnQuads[pts + 4] && x3 == drawnQuads[pts + 5]) {
             return true;
         }
     }
     drawnQuads.push(x1);
     drawnQuads.push(y1);
     drawnQuads.push(x2);
     drawnQuads.push(y2);
     drawnQuads.push(x3);
     drawnQuads.push(y3);
     return false;
 }

 function drawQuad(x1, y1, x2, y2, x3, y3) {
     if (alreadyDrawnQuad(x1, y1, x2, y2, x3, y3)) {
         return;
     }
     ctx.beginPath();
     ctx.moveTo((x1 - srcLeft) * scale,
             (y1 - srcTop) * scale);
     ctx.quadraticCurveTo((x2 - srcLeft) * scale,
             (y2 - srcTop) * scale,
             (x3 - srcLeft) * scale,
             (y3 - srcTop) * scale);
     ctx.stroke();
 }

 function interp(A, B, t) {
     return A + (B - A) * t;
 }

 function interp_quad_coords(x1, x2, x3, t)
 {
     var ab = interp(x1, x2, t);
     var bc = interp(x2, x3, t);
     var abc = interp(ab, bc, t);
     return abc;
 }

 function quadPartial(x1, y1, x2, y2, x3, y3, t1, t2) {
     var ax = interp_quad_coords(x1, x2, x3, t1);
     var ay = interp_quad_coords(y1, y2, y3, t1);
     var dx = interp_quad_coords(x1, x2, x3, (t1 + t2) / 2);
     var dy = interp_quad_coords(y1, y2, y3, (t1 + t2) / 2);
     var cx = interp_quad_coords(x1, x2, x3, t2);
     var cy = interp_quad_coords(y1, y2, y3, t2);
     var bx = 2*dx - (ax + cx)/2;
     var by = 2*dy - (ay + cy)/2;
     var array = [
         ax, ay, bx, by, cx, cy
     ];
     return array;
 }

 function drawQuadPartial(x1, y1, x2, y2, x3, y3, t1, t2) {
     var a = quadPartial(x1, y1, x2, y2, x3, y3, t1, t2);
     var ax = a[0];
     var ay = a[1];
     var bx = a[2];
     var by = a[3];
     var cx = a[4];
     var cy = a[5];
     if (alreadyDrawnQuad(ax, ay, bx, by, cx, cy)) {
         return;
     }
     ctx.beginPath();
     ctx.moveTo((ax - srcLeft) * scale,
             (ay - srcTop) * scale);
     ctx.quadraticCurveTo((bx - srcLeft) * scale,
             (by - srcTop) * scale,
             (cx - srcLeft) * scale,
             (cy - srcTop) * scale);
     ctx.stroke();
 }

 function alreadyDrawnCubic(x1, y1, x2, y2, x3, y3, x4, y4) {
     for (var pts = 0; pts < drawnCubics.length; pts += 8) {
         if (x1 == drawnCubics[pts] && y1 == drawnCubics[pts + 1]
                 && x2 == drawnCubics[pts + 2] && y2 == drawnCubics[pts + 3]
                 && x3 == drawnCubics[pts + 4] && y3 == drawnCubics[pts + 5]
                 && x4 == drawnCubics[pts + 6] && y4 == drawnCubics[pts + 7]) {
             return true;
         }
     }
     drawnCubics.push(x1);
     drawnCubics.push(y1);
     drawnCubics.push(x2);
     drawnCubics.push(y2);
     drawnCubics.push(x3);
     drawnCubics.push(y3);
     drawnCubics.push(x4);
     drawnCubics.push(y4);
     return false;
 }

 function drawCubic(x1, y1, x2, y2, x3, y3, x4, y4) {
     if (alreadyDrawnCubic(x1, y1, x2, y2, x3, y3, x4, y4)) {
         return;
     }
     ctx.beginPath();
     ctx.moveTo((x1 - srcLeft) * scale,
             (y1 - srcTop) * scale);
     ctx.bezierCurveTo((x2 - srcLeft) * scale,
             (y2 - srcTop) * scale,
             (x3 - srcLeft) * scale,
             (y3 - srcTop) * scale,
             (x4 - srcLeft) * scale,
             (y4 - srcTop) * scale);
     ctx.stroke();
 }

 function interp_cubic_coords(x1, x2, x3, x4, t)
 {
     var ab = interp(x1, x2, t);
     var bc = interp(x2, x3, t);
     var cd = interp(x3, x4, t);
     var abc = interp(ab, bc, t);
     var bcd = interp(bc, cd, t);
     var abcd = interp(abc, bcd, t);
     return abcd;
 }

 function cubicPartial(x1, y1, x2, y2, x3, y3, x4, y4, t1, t2) {
     var ax = interp_cubic_coords(x1, x2, x3, x4, t1);
     var ay = interp_cubic_coords(y1, y2, y3, y4, t1);
     var ex = interp_cubic_coords(x1, x2, x3, x4, (t1*2+t2)/3);
     var ey = interp_cubic_coords(y1, y2, y3, y4, (t1*2+t2)/3);
     var fx = interp_cubic_coords(x1, x2, x3, x4, (t1+t2*2)/3);
     var fy = interp_cubic_coords(y1, y2, y3, y4, (t1+t2*2)/3);
     var dx = interp_cubic_coords(x1, x2, x3, x4, t2);
     var dy = interp_cubic_coords(y1, y2, y3, y4, t2);
     var mx = ex * 27 - ax * 8 - dx;
     var my = ey * 27 - ay * 8 - dy;
     var nx = fx * 27 - ax - dx * 8;
     var ny = fy * 27 - ay - dy * 8;
     var bx = (mx * 2 - nx) / 18;
     var by = (my * 2 - ny) / 18;
     var cx = (nx * 2 - mx) / 18;
     var cy = (ny * 2 - my) / 18;
     var array = [
         ax, ay, bx, by, cx, cy, dx, dy
     ];
     return array;
 }

 function drawCubicPartial(x1, y1, x2, y2, x3, y3, x4, y4, t1, t2) {
     var a = cubicPartial(x1, y1, x2, y2, x3, y3, x4, y4, t1, t2);
     var ax = a[0];
     var ay = a[1];
     var bx = a[2];
     var by = a[3];
     var cx = a[4];
     var cy = a[5];
     var dx = a[6];
     var dy = a[7];
     if (alreadyDrawnCubic(ax, ay, bx, by, cx, cy, dx, dy)) {
         return;
     }
     ctx.beginPath();
     ctx.moveTo((ax - srcLeft) * scale,
             (ay - srcTop) * scale);
     ctx.bezierCurveTo((bx - srcLeft) * scale,
             (by - srcTop) * scale,
             (cx - srcLeft) * scale,
             (cy - srcTop) * scale,
             (dx - srcLeft) * scale,
             (dy - srcTop) * scale);
     ctx.stroke();
 }

 function boundsWidth(pts) {
     var min = pts[0];
     var max = pts[0];
     for (var idx = 2; idx < pts.length; idx += 2) {
         min = Math.min(min, pts[idx]);
         max = Math.max(max, pts[idx]);
     }
     return max - min;
 }

 function boundsHeight(pts) {
     var min = pts[1];
     var max = pts[1];
     for (var idx = 3; idx < pts.length; idx += 2) {
         min = Math.min(min, pts[idx]);
         max = Math.max(max, pts[idx]);
     }
     return max - min;
 }

 function tangent(pts) {
     var dx = pts[2] - pts[0];
     var dy = pts[3] - pts[1];
     if (dx == 0 && dy == 0 && pts.length > 4) {
         dx = pts[4] - pts[0];
         dy = pts[5] - pts[1];
         if (dx == 0 && dy == 0 && pts.length > 6) {
             dx = pts[6] - pts[0];
             dy = pts[7] - pts[1];
         }
     }
     return Math.atan2(-dy, dx);
 }

 function hodograph(cubic) {
     var hodo = [];
     hodo[0] = 3 * (cubic[2] - cubic[0]);
     hodo[1] = 3 * (cubic[3] - cubic[1]);
     hodo[2] = 3 * (cubic[4] - cubic[2]);
     hodo[3] = 3 * (cubic[5] - cubic[3]);
     hodo[4] = 3 * (cubic[6] - cubic[4]);
     hodo[5] = 3 * (cubic[7] - cubic[5]);
     return hodo;
 }

 function hodograph2(cubic) {
     var quad = hodograph(cubic);
     var hodo = [];
     hodo[0] = 2 * (quad[2] - quad[0]);
     hodo[1] = 2 * (quad[3] - quad[1]);
     hodo[2] = 2 * (quad[4] - quad[2]);
     hodo[3] = 2 * (quad[5] - quad[3]);
     return hodo;
 }

 function quadraticRootsReal(A, B, C, s) {
     if (A == 0) {
         if (B == 0) {
             s[0] = 0;
             return C == 0;
         }
         s[0] = -C / B;
         return 1;
     }
     /* normal form: x^2 + px + q = 0 */
     var p = B / (2 * A);
     var q = C / A;
     var p2 = p * p;
     if (p2 < q) {
         return 0;
     }
     var sqrt_D = 0;
     if (p2 > q) {
         sqrt_D = sqrt(p2 - q);
     }
     s[0] = sqrt_D - p;
     s[1] = -sqrt_D - p;
     return 1 + s[0] != s[1];
 }

 function add_valid_ts(s, realRoots, t) {
     var foundRoots = 0;
     for (var index = 0; index < realRoots; ++index) {
         var tValue = s[index];
         if (tValue >= 0 && tValue <= 1) {
             for (var idx2 = 0; idx2 < foundRoots; ++idx2) {
                 if (t[idx2] != tValue) {
                     t[foundRoots++] = tValue;
                 }
             }
         }
     }
     return foundRoots;
 }

 function quadraticRootsValidT(a, b, c, t) {
     var s = [];
     var realRoots = quadraticRootsReal(A, B, C, s);
     var foundRoots = add_valid_ts(s, realRoots, t);
     return foundRoots != 0;
 }

 function find_cubic_inflections(cubic, tValues) {
     var Ax = src[2] - src[0];
     var Ay = src[3] - src[1];
     var Bx = src[4] - 2 * src[2] + src[0];
     var By = src[5] - 2 * src[3] + src[1];
     var Cx = src[6] + 3 * (src[2] - src[4]) - src[0];
     var Cy = src[7] + 3 * (src[3] - src[5]) - src[1];
     return quadraticRootsValidT(Bx * Cy - By * Cx, (Ax * Cy - Ay * Cx),
             Ax * By - Ay * Bx, tValues);
 }

 function dxy_at_t(curve, type, t) {
     var dxy = {};
     if (type == PATH_QUAD) {
         var a = t - 1;
         var b = 1 - 2 * t;
         var c = t;
         dxy.x = a * curve[0] + b * curve[2] + c * curve[4];
         dxy.y = a * curve[1] + b * curve[3] + c * curve[5];
     } else if (type == PATH_CUBIC) {
         var one_t = 1 - t;
         var a = curve[0];
         var b = curve[2];
         var c = curve[4];
         var d = curve[6];
         dxy.x = 3 * ((b - a) * one_t * one_t + 2 * (c - b) * t * one_t + (d - c) * t * t);
         a = curve[1];
         b = curve[3];
         c = curve[5];
         d = curve[7];
         dxy.y = 3 * ((b - a) * one_t * one_t + 2 * (c - b) * t * one_t + (d - c) * t * t);
     }
     return dxy;
 }

 function drawLabel(num, px, py) {
     ctx.beginPath();
     ctx.arc(px, py, 8, 0, Math.PI*2, true);
     ctx.closePath();
     ctx.strokeStyle = "rgba(0,0,0, 0.4)";
     ctx.lineWidth = num == 0 || num == 3 ? 2 : 1;
     ctx.stroke();
     ctx.fillStyle = "black";
     ctx.font = "normal 10px Arial";
   //  ctx.rotate(0.001);
     ctx.fillText(num, px - 2, py + 3);
   //  ctx.rotate(-0.001);
 }

 function drawLabelX(ymin, num, loc) {
     var px = (loc - srcLeft) * scale;
     var py = (ymin - srcTop) * scale - 20;
     drawLabel(num, px, py);
 }

 function drawLabelY(xmin, num, loc) {
     var px = (xmin - srcLeft) * scale - 20;
     var py = (loc - srcTop) * scale;
     drawLabel(num, px, py);
 }

 function drawHodoOrigin(hx, hy, hMinX, hMinY, hMaxX, hMaxY) {
     ctx.beginPath();
     ctx.moveTo(hx, hy - 100);
     ctx.lineTo(hx, hy);
     ctx.strokeStyle = hMinY < 0 ? "green" : "blue";
     ctx.stroke();
     ctx.beginPath();
     ctx.moveTo(hx, hy);
     ctx.lineTo(hx, hy + 100);
     ctx.strokeStyle = hMaxY > 0 ? "green" : "blue";
     ctx.stroke();
     ctx.beginPath();
     ctx.moveTo(hx - 100, hy);
     ctx.lineTo(hx, hy);
     ctx.strokeStyle = hMinX < 0 ? "green" : "blue";
     ctx.stroke();
     ctx.beginPath();
     ctx.moveTo(hx, hy);
     ctx.lineTo(hx + 100, hy);
     ctx.strokeStyle = hMaxX > 0 ? "green" : "blue";
     ctx.stroke();
 }

 function scalexy(x, y, mag) {
     var length = Math.sqrt(x * x + y * y);
     return mag / length;
 }

 function drawArrow(x, y, dx, dy) {
     var dscale = scalexy(dx, dy, 1 / scale * 100);
     dx *= dscale;
     dy *= dscale;
     ctx.beginPath();
     ctx.moveTo((x - srcLeft) * scale, (y - srcTop) * scale);
     x += dx;
     y += dy;
     ctx.lineTo((x - srcLeft) * scale, (y - srcTop) * scale);
     dx /= 10;
     dy /= 10;
     ctx.lineTo((x - dy - srcLeft) * scale, (y + dx - srcTop) * scale);
     ctx.lineTo((x + dx * 2 - srcLeft) * scale, (y + dy * 2 - srcTop) * scale);
     ctx.lineTo((x + dy - srcLeft) * scale, (y - dx - srcTop) * scale);
     ctx.lineTo((x - srcLeft) * scale, (y - srcTop) * scale);
     ctx.strokeStyle = "rgba(0,75,0, 0.4)";
     ctx.stroke();
 }

 function drawCurveSpecials(curve, type) {
     if (pt_labels) {
         drawPoints(curve, type, pt_labels == 2);
     }
     if (control_lines != 0) {
         drawControlLines(curve, type, control_lines);
     }
     if (curve_t) {
         drawPointAtT(curve, type);
     }
     if (draw_midpoint) {
         var mid = pointAtT(curve, type, 0.5);
         drawPoint(mid.x, mid.y, true);
     }
     if (type == PATH_LINE) {
         return;
     }
     if (draw_deriviatives > 0) {
         var d = dxy_at_t(curve, type, 0);
         drawArrow(curve[0], curve[1], d.x, d.y);
         if (draw_deriviatives == 2) {
             d = dxy_at_t(curve, type, 1);
             if (type == PATH_CUBIC) {
                 drawArrow(curve[6], curve[7], d.x, d.y);
             } else {
                 drawArrow(curve[4], curve[5], d.x, d.y);
             }
         }
         if (draw_midpoint) {
             var mid = pointAtT(curve, 0.5);
             d = dxy_at_t(curve, type, 0.5);
             drawArrow(mid.x, mid.y, d.x, d.y);
         }
     }
     if (type != PATH_CUBIC) {
         return;
     }
     if (draw_hodo == 1 || draw_hodo == 2) {
         var hodo = hodograph(curve);
         var hMinX = Math.min(0, hodo[0], hodo[2], hodo[4]);
         var hMinY = Math.min(0, hodo[1], hodo[3], hodo[5]);
         var hMaxX = Math.max(0, hodo[0], hodo[2], hodo[4]);
         var hMaxY = Math.max(0, hodo[1], hodo[3], hodo[5]);
         var hScaleX = hMaxX - hMinX > 0 ? ctx.canvas.width / (hMaxX - hMinX) : 1;
         var hScaleY = hMaxY - hMinY > 0 ? ctx.canvas.height / (hMaxY - hMinY) : 1;
         var hUnit = Math.min(hScaleX, hScaleY);
         hUnit /= 2;
         var hx = xoffset - hMinX * hUnit;
         var hy = yoffset - hMinY * hUnit;
         ctx.moveTo(hx + hodo[0] * hUnit, hy + hodo[1] * hUnit);
         ctx.quadraticCurveTo(
             hx + hodo[2] * hUnit, hy + hodo[3] * hUnit,
             hx + hodo[4] * hUnit, hy + hodo[5] * hUnit);
         ctx.strokeStyle = "red";
         ctx.stroke();
         if (draw_hodo == 1) {
             drawHodoOrigin(hx, hy, hMinX, hMinY, hMaxX, hMaxY);
         }
     }
     if (draw_hodo == 3) {
         var hodo = hodograph2(curve);
         var hMinX = Math.min(0, hodo[0], hodo[2]);
         var hMinY = Math.min(0, hodo[1], hodo[3]);
         var hMaxX = Math.max(0, hodo[0], hodo[2]);
         var hMaxY = Math.max(0, hodo[1], hodo[3]);
         var hScaleX = hMaxX - hMinX > 0 ? ctx.canvas.width / (hMaxX - hMinX) : 1;
         var hScaleY = hMaxY - hMinY > 0 ? ctx.canvas.height / (hMaxY - hMinY) : 1;
         var hUnit = Math.min(hScaleX, hScaleY);
         hUnit /= 2;
         var hx = xoffset - hMinX * hUnit;
         var hy = yoffset - hMinY * hUnit;
         ctx.moveTo(hx + hodo[0] * hUnit, hy + hodo[1] * hUnit);
         ctx.lineTo(hx + hodo[2] * hUnit, hy + hodo[3] * hUnit);
         ctx.strokeStyle = "red";
         ctx.stroke();
         drawHodoOrigin(hx, hy, hMinX, hMinY, hMaxX, hMaxY);
     }
     if (draw_sequence) {
         var ymin = Math.min(curve[1], curve[3], curve[5], curve[7]);
         for (var i = 0; i < 8; i+= 2) {
             drawLabelX(ymin, i >> 1, curve[i]);
         }
         var xmin = Math.min(curve[0], curve[2], curve[4], curve[6]);
         for (var i = 1; i < 8; i+= 2) {
             drawLabelY(xmin, i >> 1, curve[i]);
         }
     }
 }

 function logCurves(test) {
     for (curves in test) {
         var curve = test[curves];
         if (curve.length != 8) {
             continue;
         }
         var str = "{{";
         for (i = 0; i < 8; i += 2) {
             str += curve[i].toFixed(decimal_places) + "," + curve[i + 1].toFixed(decimal_places);
             if (i < 6) {
                 str += "}, {";
             }
         }
         str += "}}";
         console.log(str);
     }
 }

 function draw(test, lines, title) {
     ctx.fillStyle = "rgba(0,0,0, 0.1)";
     ctx.font = "normal 50px Arial";
     ctx.textAlign = "left";
     ctx.fillText(title, 50, 50);
     ctx.font = "normal 10px Arial";
     ctx.lineWidth = "1.001"; "0.999";
     var secondPath = test.length;
     var closeCount = 0;
     var logStart = -1;
     var logRange = 0;
     // find last active rec type at this step
     var curType = test[0];
     var curStep = 0;
     var hasOp = false;
     var lastActive = 0;
     var lastAdd = 0;
     var lastSect = 0;
     var lastSort = 0;
     var lastMark = 0;
     activeCount = 0;
     addCount = 0;
     sectCount = 0;
     sortCount = 0;
     markCount = 0;
     activeMax = 0;
     addMax = 0;
     sectMax = 0;
     sectMax2 = 0;
     sortMax = 0;
     markMax = 0;
     lastIndex = test.length - 3;
     for (var testIndex = 0; testIndex < test.length; testIndex += 3) {
         var recType = test[testIndex];
         if (!typeof recType == 'number' || recType < REC_TYPE_UNKNOWN || recType > REC_TYPE_LAST) {
             console.log("unknown rec type: " + recType);
             throw "stop execution";
         }
    //     if (curType == recType && curType != REC_TYPE_ADD) {
    //         continue;
    //     }
         var inStepRange = step_limit == 0 || curStep < step_limit;
         curType = recType;
         if (recType == REC_TYPE_OP) {
             hasOp = true;
             continue;
         }
         if (recType == REC_TYPE_UNKNOWN) {
             // these types do not advance step
             continue;
         }
         var bumpStep = false;
         var records = test[testIndex + 2];
         var fragType = records[0];
         if (recType == REC_TYPE_ADD) {
             if (records.length != 2) {
                 console.log("expect only two elements: " + records.length);
                 throw "stop execution";
             }
             if (fragType == ADD_MOVETO || fragType == ADD_CLOSE) {
                 continue;
             }
             ++addMax;
             if (!draw_add || !inStepRange) {
                 continue;
             }
             lastAdd = testIndex;
             ++addCount;
             bumpStep = true;
         }
         if (recType == REC_TYPE_PATH && hasOp) {
             secondPath = testIndex;
         }
         if (recType == REC_TYPE_ACTIVE) {
             ++activeMax;
             if (!draw_active || !inStepRange) {
                 continue;
             }
             lastActive = testIndex;
             ++activeCount;
             bumpStep = true;
         }
         if (recType == REC_TYPE_SECT) {
             if (records.length != 2) {
                 console.log("expect only two elements: " + records.length);
                 throw "stop execution";
             }
             ++sectMax;
             var sectBump = 1;
             switch (fragType) {
                 case INTERSECT_LINE:
                 case INTERSECT_QUAD_LINE:
                 case INTERSECT_QUAD:
                 case INTERSECT_SELF_CUBIC:
                 case INTERSECT_CUBIC_LINE:
                 case INTERSECT_CUBIC:
                     sectBump = 1;
                     break;
                 case INTERSECT_LINE_2:
                 case INTERSECT_QUAD_LINE_2:
                 case INTERSECT_QUAD_2:
                 case INTERSECT_CUBIC_LINE_2:
                 case INTERSECT_CUBIC_2:
                     sectBump = 2;
                     break;
                 case INTERSECT_LINE_NO:
                 case INTERSECT_QUAD_LINE_NO:
                 case INTERSECT_QUAD_NO:
                 case INTERSECT_SELF_CUBIC_NO:
                 case INTERSECT_CUBIC_LINE_NO:
                 case INTERSECT_CUBIC_NO:
                     sectBump = 0;
                     break;
                 case INTERSECT_CUBIC_LINE_3:
                 case INTERSECT_CUBIC_3:
                     sectBump = 3;
                     break;
                 case INTERSECT_CUBIC_4:
                     sectBump = 4;
                     break;
                 default:
                     console.log("missing case " + records.length);
                     throw "stop execution";
             }
             sectMax2 += sectBump;
             if (draw_intersection <= 1 || !inStepRange) {
                 continue;
             }
             lastSect = testIndex;
             sectCount += sectBump;
             bumpStep = true;
         }
         if (recType == REC_TYPE_SORT) {
             ++sortMax;
             if (!draw_sort || !inStepRange) {
                 continue;
             }
             lastSort = testIndex;
             ++sortCount;
             bumpStep = true;
         }
         if (recType == REC_TYPE_MARK) {
             ++markMax;
             if (!draw_mark || !inStepRange) {
                 continue;
             }
             lastMark = testIndex;
             ++markCount;
             bumpStep = true;
         }
         if (bumpStep) {
             lastIndex = testIndex;
             logStart = test[testIndex + 1];
             logRange = records.length / 2;
             ++curStep;
         }
     }
     stepMax = (draw_add ? addMax : 0) + (draw_active ? activeMax : 0)
             + (draw_sort ? sortMax : 0) + (draw_mark ? markMax : 0)
             + (draw_intersection == 2 ? sectMax : draw_intersection == 3 ? sectMax2 : 0);
     if (stepMax == 0) {
         stepMax = addMax + activeMax + sortMax + markMax;
     }
     drawnPts = [];
     drawnLines = [];
     drawnQuads = [];
     drawnCubics = [];
     var pathIndex = 0;
     var opLetter = 'S';
     for (var testIndex = lastIndex; testIndex >= 0; testIndex -= 3) {
         var recType = test[testIndex];
         var records = test[testIndex + 2];
         for (var recordIndex = 0; recordIndex < records.length; recordIndex += 2) {
             var fragType = records[recordIndex];
             if (!typeof fragType == 'number' || fragType < 1 || fragType > FRAG_TYPE_LAST) {
                 console.log("unknown in range frag type: " + fragType);
                 throw "stop execution";
             }
             var frags = records[recordIndex + 1];
             switch (recType) {
                 case REC_TYPE_COMPUTED:
                     if (draw_computed == 0) {
                         continue;
                     }
                     ctx.lineWidth = 1;
                     ctx.strokeStyle = pathIndex == 0 ? "black" : "red";
                     ctx.fillStyle = "blue";
                     var drawThis = false;
                     switch (fragType) {
                         case PATH_QUAD:
                             if ((draw_computed & 5) == 1 || ((draw_computed & 4) != 0
                                     && (draw_computed & 1) == pathIndex)) {
                                 drawQuad(frags[0], frags[1], frags[2], frags[3],
                                         frags[4], frags[5]);
                                 drawThis = true;
                             }
                             break;
                         case PATH_CUBIC:
                             if ((draw_computed & 6) == 2 || ((draw_computed & 4) != 0
                                      && (draw_computed & 1) != pathIndex)) {
                                 drawCubic(frags[0], frags[1], frags[2], frags[3],
                                         frags[4], frags[5], frags[6], frags[7]);
                                 drawThis = true;
                             }
                             ++pathIndex;
                             break;
                         case COMPUTED_SET_1:
                             pathIndex = 0;
                             break;
                         case COMPUTED_SET_2:
                             pathIndex = 1;
                             break;
                         default:
                             console.log("unknown REC_TYPE_COMPUTED frag type: " + fragType);
                             throw "stop execution";
                     }
                     if (!drawThis) {
                         break;
                     }
                     drawCurveSpecials(frags, fragType);
                     break;
                 case REC_TYPE_PATH:
                     if (!draw_path) {
                         continue;
                     }
                     var firstPath = testIndex < secondPath;
                     if ((draw_path & (firstPath ? 1 : 2)) == 0) {
                         continue;
                     }
                     ctx.lineWidth = 1;
                     ctx.strokeStyle = firstPath ? "black" : "red";
                     ctx.fillStyle = "blue";
                     switch (fragType) {
                         case PATH_LINE:
                             drawLine(frags[0], frags[1], frags[2], frags[3]);
                             break;
                         case PATH_QUAD:
                             drawQuad(frags[0], frags[1], frags[2], frags[3],
                                     frags[4], frags[5]);
                             break;
                         case PATH_CUBIC:
                             drawCubic(frags[0], frags[1], frags[2], frags[3],
                                     frags[4], frags[5], frags[6], frags[7]);
                             break;
                         default:
                             console.log("unknown REC_TYPE_PATH frag type: " + fragType);
                             throw "stop execution";
                     }
                     drawCurveSpecials(frags, fragType);
                     break;
                 case REC_TYPE_OP:
                     switch (fragType) {
                         case OP_INTERSECT: opLetter = 'I'; break;
                         case OP_DIFFERENCE: opLetter = 'D'; break;
                         case OP_UNION: opLetter = 'U'; break;
                         case OP_XOR: opLetter = 'X'; break;
                         default:
                             console.log("unknown REC_TYPE_OP frag type: " + fragType);
                             throw "stop execution";
                     }
                     break;
                 case REC_TYPE_ACTIVE:
                     if (!draw_active || (step_limit > 0 && testIndex < lastActive)) {
                         continue;
                     }
                     var x1 = frags[SPAN_X1];
                     var y1 = frags[SPAN_Y1];
                     var x2 = frags[SPAN_X2];
                     var y2 = frags[SPAN_Y2];
                     var x3, y3, x3, y4, t1, t2;
                     ctx.lineWidth = 3;
                     ctx.strokeStyle = "rgba(0,0,255, 0.3)";
                     switch (fragType) {
                         case ACTIVE_LINE_SPAN:
                             t1 = frags[SPAN_L_T];
                             t2 = frags[SPAN_L_TEND];
                             drawLinePartial(x1, y1, x2, y2, t1, t2);
                             break;
                         case ACTIVE_QUAD_SPAN:
                             x3 = frags[SPAN_X3];
                             y3 = frags[SPAN_Y3];
                             t1 = frags[SPAN_Q_T];
                             t2 = frags[SPAN_Q_TEND];
                             drawQuadPartial(x1, y1, x2, y2, x3, y3, t1, t2);
                             break;
                         case ACTIVE_CUBIC_SPAN:
                             x3 = frags[SPAN_X3];
                             y3 = frags[SPAN_Y3];
                             x4 = frags[SPAN_X4];
                             y4 = frags[SPAN_Y4];
                             t1 = frags[SPAN_C_T];
                             t2 = frags[SPAN_C_TEND];
                             drawCubicPartial(x1, y1, x2, y2, x3, y3, x4, y4, t1, t2);
                             break;
                         default:
                             console.log("unknown REC_TYPE_ACTIVE frag type: " + fragType);
                             throw "stop execution";
                     }
                     break;
                 case REC_TYPE_ADD:
                     if (!draw_add) {
                         continue;
                     }
                     ctx.lineWidth = 3;
                     ctx.strokeStyle = closeCount == 0 ? "rgba(0,0,255, 0.3)"
                             : closeCount == 1 ? "rgba(0,127,0, 0.3)"
                             : closeCount == 2 ? "rgba(0,127,127, 0.3)"
                             : closeCount == 3 ? "rgba(127,127,0, 0.3)"
                             : "rgba(127,0,127, 0.3)";
                     switch (fragType) {
                         case ADD_MOVETO:
                             break;
                         case ADD_LINETO:
                             if (step_limit == 0 || testIndex >= lastAdd) {
                                 drawLine(frags[0], frags[1], frags[2], frags[3]);
                             }
                            break;
                         case ADD_QUADTO:
                             if (step_limit == 0 || testIndex >= lastAdd) {
                                 drawQuad(frags[0], frags[1], frags[2], frags[3], frags[4], frags[5]);
                             }
                             break;
                         case ADD_CUBICTO:
                             if (step_limit == 0 || testIndex >= lastAdd) {
                                 drawCubic(frags[0], frags[1], frags[2], frags[3],
                                         frags[4], frags[5], frags[6], frags[7]);
                             }
                             break;
                         case ADD_CLOSE:
                             ++closeCount;
                             break;
                         default:
                             console.log("unknown REC_TYPE_ADD frag type: " + fragType);
                             throw "stop execution";
                     }
                     break;
                 case REC_TYPE_SECT:
                     if (!draw_intersection) {
                         continue;
                     }
                     if (draw_intersection != 1 && (step_limit > 0 && testIndex < lastSect)) {
                         continue;
                     }
                     // draw_intersection == 1 : show all
                     // draw_intersection == 2 : step == 0 ? show all : show intersection line #step
                     // draw_intersection == 3 : step == 0 ? show all : show intersection #step
                     ctx.lineWidth = 1;
                     ctx.strokeStyle = "rgba(0,0,255, 0.3)";
                     ctx.fillStyle = "blue";
                     var f = [];
                     var c1s;
                     var c1l;
                     var c2s;
                     var c2l;
                     switch (fragType) {
                         case INTERSECT_LINE:
                             f.push(5, 6, 0, 7);
                             c1s = 1; c1l = 4; c2s = 8; c2l = 4;
                             break;
                         case INTERSECT_LINE_2:
                             f.push(5, 6, 0, 10);
                             f.push(8, 9, 7, 15);
                             c1s = 1; c1l = 4; c2s = 11; c2l = 4;
                             break;
                         case INTERSECT_LINE_NO:
                             c1s = 0; c1l = 4; c2s = 4; c2l = 4;
                             break;
                         case INTERSECT_QUAD_LINE:
                             f.push(7, 8, 0, 9);
                             c1s = 1; c1l = 6; c2s = 10; c2l = 4;
                             break;
                         case INTERSECT_QUAD_LINE_2:
                             f.push(7, 8, 0, 12);
                             f.push(10, 11, 9, 17);
                             c1s = 1; c1l = 6; c2s = 13; c2l = 4;
                             break;
                         case INTERSECT_QUAD_LINE_NO:
                             c1s = 0; c1l = 6; c2s = 6; c2l = 4;
                             break;
                         case INTERSECT_QUAD:
                             f.push(7, 8, 0, 9);
                             c1s = 1; c1l = 6; c2s = 10; c2l = 6;
                             break;
                         case INTERSECT_QUAD_2:
                             f.push(7, 8, 0, 12);
                             f.push(10, 11, 9, 19);
                             c1s = 1; c1l = 6; c2s = 13; c2l = 6;
                             break;
                         case INTERSECT_QUAD_NO:
                             c1s = 0; c1l = 6; c2s = 6; c2l = 6;
                             break;
                         case INTERSECT_SELF_CUBIC:
                             f.push(9, 10, 0, 11);
                             c1s = 1; c1l = 8; c2s = 0; c2l = 0;
                             break;
                         case INTERSECT_SELF_CUBIC_NO:
                             c1s = 0; c1l = 8; c2s = 0; c2l = 0;
                             break;
                         case INTERSECT_CUBIC_LINE:
                             f.push(9, 10, 0, 11);
                             c1s = 1; c1l = 8; c2s = 12; c2l = 4;
                             break;
                         case INTERSECT_CUBIC_LINE_2:
                             f.push(9, 10, 0, 14);
                             f.push(12, 13, 11, 19);
                             c1s = 1; c1l = 8; c2s = 15; c2l = 4;
                             break;
                         case INTERSECT_CUBIC_LINE_3:
                             f.push(9, 10, 0, 17);
                             f.push(12, 13, 11, 22);
                             f.push(15, 16, 14, 23);
                             c1s = 1; c1l = 8; c2s = 18; c2l = 4;
                             break;
                         case INTERSECT_CUBIC_LINE_NO:
                             c1s = 0; c1l = 8; c2s = 8; c2l = 4;
                             break;
                         case INTERSECT_CUBIC:
                             f.push(9, 10, 0, 11);
                             c1s = 1; c1l = 8; c2s = 12; c2l = 8;
                             break;
                         case INTERSECT_CUBIC_2:
                             f.push(9, 10, 0, 14);
                             f.push(12, 13, 11, 23);
                             c1s = 1; c1l = 8; c2s = 15; c2l = 8;
                             break;
                         case INTERSECT_CUBIC_3:
                             f.push(9, 10, 0, 17);
                             f.push(12, 13, 11, 26);
                             f.push(15, 16, 14, 27);
                             c1s = 1; c1l = 8; c2s = 18; c2l = 8;
                             break;
                         case INTERSECT_CUBIC_4:
                             f.push(9, 10, 0, 20);
                             f.push(12, 13, 11, 29);
                             f.push(15, 16, 14, 30);
                             f.push(18, 19, 17, 31);
                             c1s = 1; c1l = 8; c2s = 21; c2l = 8;
                             break;
                         case INTERSECT_CUBIC_NO:
                             c1s = 0; c1l = 8; c2s = 8; c2l = 8;
                             break;
                         default:
                             console.log("unknown REC_TYPE_SECT frag type: " + fragType);
                             throw "stop execution";
                     }
                     if (draw_intersection != 1) {
                         switch (c1l) {
                             case 4:
                                 drawLine(frags[c1s], frags[c1s + 1], frags[c1s + 2], frags[c1s + 3]);
                                 break;
                             case 6:
                                 drawQuad(frags[c1s], frags[c1s + 1], frags[c1s + 2], frags[c1s + 3],
                                         frags[c1s + 4], frags[c1s + 5]);
                                 break;
                             case 8:
                                 drawCubic(frags[c1s], frags[c1s + 1], frags[c1s + 2], frags[c1s + 3],
                                         frags[c1s + 4], frags[c1s + 5], frags[c1s + 6], frags[c1s + 7]);
                                 break;
                         }
                         switch (c2l) {
                             case 0:
                                 break;
                             case 4:
                                 drawLine(frags[c2s], frags[c2s + 1], frags[c2s + 2], frags[c2s + 3]);
                                 break;
                             case 6:
                                 drawQuad(frags[c2s], frags[c2s + 1], frags[c2s + 2], frags[c2s + 3],
                                         frags[c2s + 4], frags[c2s + 5]);
                                 break;
                             case 8:
                                 drawCubic(frags[c2s], frags[c2s + 1], frags[c2s + 2], frags[c2s + 3],
                                         frags[c2s + 4], frags[c2s + 5], frags[c2s + 6], frags[c2s + 7]);
                                 break;
                         }
                     }
                     for (var idx = 0; idx < f.length; idx += 4) {
                         if (draw_intersection != 3 || idx == lastSect - testIndex) {
                             drawPoint(frags[f[idx]], frags[f[idx + 1]], true);
                         }
                     }
                     if (!draw_intersectT) {
                         break;
                     }
                     ctx.fillStyle = "red";
                     for (var idx = 0; idx < f.length; idx += 4) {
                         if (draw_intersection != 3 || idx == lastSect - testIndex) {
                             drawTAtPointUp(frags[f[idx]], frags[f[idx + 1]], frags[f[idx + 2]]);
                             drawTAtPointDown(frags[f[idx]], frags[f[idx + 1]], frags[f[idx + 3]]);
                         }
                     }
                     break;
                 case REC_TYPE_SORT:
                     if (!draw_sort || (step_limit > 0 && testIndex < lastSort)) {
                         continue;
                     }
                     ctx.lineWidth = 3;
                     ctx.strokeStyle = "rgba(127,127,0, 0.5)";
                     switch (fragType) {
                         case SORT_LINE:
                         case SORT_LINE_UNSORTABLE:
                             drawLinePartial(frags[1], frags[2], frags[3], frags[4],
                                 frags[5], frags[6]);
                             break;
                         case SORT_QUAD:
                         case SORT_QUAD_UNSORTABLE:
                             drawQuadPartial(frags[1], frags[2], frags[3], frags[4],
                                 frags[5], frags[6], frags[7], frags[8]);
                             break;
                         case SORT_CUBIC:
                         case SORT_CUBIC_UNSORTABLE:
                             drawCubicPartial(frags[1], frags[2], frags[3], frags[4],
                                 frags[5], frags[6], frags[7], frags[8], frags[9], frags[10]);
                             break;
                         case SORT_LINE_COMPACT:
                         case SORT_QUAD_COMPACT:
                         case SORT_CUBIC_COMPACT:
                             // unsupported
                             break;
                         default:
                             console.log("unknown REC_TYPE_SORT frag type: " + fragType);
                             throw "stop execution";
                     }
                     break;
                 case REC_TYPE_MARK:
                     if (!draw_mark || (step_limit > 0 && testIndex < lastMark)) {
                         continue;
                     }
                     ctx.lineWidth = 3;
                     ctx.strokeStyle = fragType >= MARK_DONE_LINE ?
                             "rgba(127,0,127, 0.5)" : "rgba(127,127,0, 0.5)";
                     switch (fragType) {
                         case MARK_LINE:
                         case MARK_DONE_LINE:
                         case MARK_UNSORTABLE_LINE:
                         case MARK_SIMPLE_LINE:
                         case MARK_SIMPLE_DONE_LINE:
                         case MARK_DONE_UNARY_LINE:
                             drawLinePartial(frags[1], frags[2], frags[3], frags[4],
                                 frags[5], frags[9]);
                             break;
                         case MARK_QUAD:
                         case MARK_DONE_QUAD:
                         case MARK_UNSORTABLE_QUAD:
                         case MARK_SIMPLE_QUAD:
                         case MARK_SIMPLE_DONE_QUAD:
                         case MARK_DONE_UNARY_QUAD:
                             drawQuadPartial(frags[1], frags[2], frags[3], frags[4],
                                 frags[5], frags[6], frags[7], frags[11]);
                             break;
                         case MARK_CUBIC:
                         case MARK_DONE_CUBIC:
                         case MARK_UNSORTABLE_CUBIC:
                         case MARK_SIMPLE_CUBIC:
                         case MARK_SIMPLE_DONE_CUBIC:
                         case MARK_DONE_UNARY_CUBIC:
                             drawCubicPartial(frags[1], frags[2], frags[3], frags[4],
                                 frags[5], frags[6], frags[7], frags[8], frags[9], frags[13]);
                             break;
                         default:
                             console.log("unknown REC_TYPE_MARK frag type: " + fragType);
                             throw "stop execution";
                     }
                     break;
                 default:
                     continue;
             }
         }
         switch (recType) {
             case REC_TYPE_SORT:
                 if (!draw_sort || (step_limit > 0 && testIndex < lastSort)) {
                     break;
                 }
                 var angles = []; // use tangent lines to describe arcs
                 var windFrom = [];
                 var windTo = [];
                 var opp = [];
                 var minXY = Number.MAX_VALUE;
                 var partial;
                 for (var recordIndex = 0; recordIndex < records.length; recordIndex += 2) {
                     var fragType = records[recordIndex];
                     var frags = records[recordIndex + 1];
                     var idx = 10;
                     switch (fragType) {
                         case SORT_LINE:
                         case SORT_LINE_UNSORTABLE:
                             partial = linePartial(frags[1], frags[2], frags[3], frags[4],
                                 frags[5], frags[6]);
                             break;
                         case SORT_QUAD:
                         case SORT_QUAD_UNSORTABLE:
                             partial = quadPartial(frags[1], frags[2], frags[3], frags[4],
                                 frags[5], frags[6], frags[7], frags[8]);
                             idx += 2;
                             break;
                         case SORT_CUBIC:
                         case SORT_CUBIC_UNSORTABLE:
                             partial = cubicPartial(frags[1], frags[2], frags[3], frags[4],
                                 frags[5], frags[6], frags[7], frags[8], frags[9], frags[10]);
                             idx += 4;
                             break;
                         case SORT_LINE_COMPACT:
                         case SORT_QUAD_COMPACT:
                         case SORT_CUBIC_COMPACT:
                             // unsupported
                             continue;
                         default:
                             console.log("unknown REC_TYPE_SORT frag type: " + fragType);
                             throw "stop execution";
                     }
                     var dx = boundsWidth(partial);
                     var dy = boundsHeight(partial);
                     minXY = Math.min(minXY, dx * dx + dy * dy);
                     angles.push(tangent(partial));
                     windFrom.push(frags[idx]);
                     windTo.push(frags[idx + 1]);
                     opp.push(frags[idx + 5]);
                 }
                 var radius = Math.sqrt(minXY) / 2 * scale;
                 radius = Math.min(50, radius);
                 var centerX = (partial[0] - srcLeft) * scale;
                 var centerY = (partial[1] - srcTop) * scale;
                 ctx.lineWidth = 1;
                 ctx.strokeStyle = "rgba(127,0,171, 0.5)";
                 ctx.fillStyle = "rgba(0,0,0, 0.5)";
                 ctx.font = "normal 10px Arial";
                 ctx.textAlign = "center";
                 for (var angleIndex = 0; angleIndex < angles.length; ++angleIndex) {
                     var angleParts = [
                         angles[(angleIndex + angles.length - 1) % angles.length],
                         angles[angleIndex],
                         angles[(angleIndex + 1) % angles.length]
                     ];
                     var angleStart = (angleParts[0] + angleParts[1]) / 2;
                     if (angleParts[0] > angleParts[1]) {
                         angleStart -= Math.PI;
                     }
                     var angleEnd = (angleParts[1] + angleParts[2]) / 2;
                     if (angleParts[1] > angleParts[2]) {
                         angleEnd -= Math.PI;
                     }
                     ctx.beginPath();
                     ctx.arc(centerX, centerY, radius + (opp[angleIndex] ? 10 : 0),
                         Math.PI * 2 - angleStart - Math.PI / 18, Math.PI * 2 - angleEnd + Math.PI / 18, true);
                     ctx.stroke();
                     var tx = centerX + Math.cos(angleStart) * (radius + (opp[angleIndex] ? 10 : 0));
                     var ty = centerY - Math.sin(angleStart) * (radius + (opp[angleIndex] ? 10 : 0));
                     ctx.fillText(windFrom[angleIndex], tx, ty + 5);
                     tx = centerX + Math.cos(angleEnd) * (radius + (opp[angleIndex] ? 10 : 0));
                     ty = centerY - Math.sin(angleEnd) * (radius + (opp[angleIndex] ? 10 : 0));
                     ctx.fillText(windTo[angleIndex], tx, ty + 5);
                 }
                 break;
             default:
                 break;
         }
     }
     if (draw_log && logStart >= 0) {
         ctx.font = "normal 10px Arial";
         ctx.textAlign = "left";
         ctx.beginPath();
         var top = ctx.canvas.height - 20 - (logRange + 2) * 10;
         ctx.rect(50, top, ctx.canvas.width-100, (logRange + 2) * 10);
         ctx.fillStyle = "white";
         ctx.fill();
         ctx.fillStyle = "rgba(0,0,0, 0.5)";
         if (logStart > 0) {
             ctx.fillText(lines[logStart - 1], 50, top + 8);
         }
         ctx.fillStyle = "black";
         for (var idx = 0; idx < logRange; ++idx) {
             ctx.fillText(lines[logStart + idx], 50, top + 18 + 10 * idx);
         }
         ctx.fillStyle = "rgba(0,0,0, 0.5)";
         if (logStart + logRange < lines.length) {
             ctx.fillText(lines[logStart + logRange], 50, top + 18 + 10 * logRange);
         }
     }
     if (draw_legend) {
         var pos = 0;
         var drawSomething = draw_add | draw_active | draw_sort | draw_mark;
    //     drawBox(pos++, "yellow", "black", opLetter, true, '');
         drawBox(pos++, "rgba(0,0,255, 0.3)", "black", draw_intersection > 1 ? sectCount : sectMax2, draw_intersection, intersectionKey);
         drawBox(pos++, "rgba(0,0,255, 0.3)", "black", draw_add ? addCount : addMax, draw_add, addKey);
         drawBox(pos++, "rgba(0,0,255, 0.3)", "black", draw_active ? activeCount : activeMax, draw_active, activeKey);
         drawBox(pos++, "rgba(127,127,0, 0.3)", "black", draw_sort ? sortCount : sortMax, draw_sort, sortKey);
         drawBox(pos++, "rgba(127,0,127, 0.3)", "black", draw_mark ? markCount : markMax, draw_mark, markKey);
         drawBox(pos++, "black", "white",
                 (new Array('P', 'P1', 'P2', 'P'))[draw_path], draw_path != 0, pathKey);
         drawBox(pos++, "rgba(0,63,0, 0.7)", "white",
                 (new Array('Q', 'Q', 'C', 'QC', 'Qc', 'Cq'))[draw_computed],
                 draw_computed != 0, computedKey);
         drawBox(pos++, "green", "black", step_limit, drawSomething, '');
         drawBox(pos++, "green", "black", stepMax, drawSomething, '');
         drawBox(pos++, "red", "black", lastIndex, drawSomething & draw_log, '');
         drawBox(pos++, "red", "black", test.length - 1, drawSomething & draw_log, '');
         if (curve_t) {
             drawCurveTControl();
         }
         ctx.font = "normal 20px Arial";
         ctx.fillStyle = "rgba(0,0,0, 0.3)";
         ctx.textAlign = "right";
         ctx.fillText(scale.toFixed(decimal_places) + 'x' , ctx.canvas.width - 10, ctx.canvas.height - 5);
     }
     if (draw_hints) {
         ctx.font = "normal 10px Arial";
         ctx.fillStyle = "rgba(0,0,0, 0.5)";
         ctx.textAlign = "right";
         var y = 4;
         ctx.fillText("control lines : " +  controlLinesKey, ctx.canvas.width - 10, pos * 50 + y++ * 10);
         ctx.fillText("curve t : " +  curveTKey, ctx.canvas.width - 10, pos * 50 + y++ * 10);
         ctx.fillText("deriviatives : " +  deriviativesKey, ctx.canvas.width - 10, pos * 50 + y++ * 10);
         ctx.fillText("intersect t : " +  intersectTKey, ctx.canvas.width - 10, pos * 50 + y++ * 10);
         ctx.fillText("hodo : " +  hodoKey, ctx.canvas.width - 10, pos * 50 + y++ * 10);
         ctx.fillText("log : " +  logKey, ctx.canvas.width - 10, pos * 50 + y++ * 10);
         ctx.fillText("log curve : " +  logCurvesKey, ctx.canvas.width - 10, pos * 50 + y++ * 10);
         ctx.fillText("mid point : " +  midpointKey, ctx.canvas.width - 10, pos * 50 + y++ * 10);
         ctx.fillText("points : " +  ptsKey, ctx.canvas.width - 10, pos * 50 + y++ * 10);
         ctx.fillText("sequence : " +  sequenceKey, ctx.canvas.width - 10, pos * 50 + y++ * 10);
         ctx.fillText("xy : " +  xyKey, ctx.canvas.width - 10, pos * 50 + y++ * 10);
     }
 }

 function drawBox(y, backC, foreC, str, enable, label) {
     ctx.beginPath();
     ctx.fillStyle = backC;
     ctx.rect(ctx.canvas.width - 40, y * 50 + 10, 40, 30);
     ctx.fill();
     ctx.font = "normal 16px Arial";
     ctx.fillStyle = foreC;
     ctx.textAlign = "center";
     ctx.fillText(str, ctx.canvas.width - 20, y * 50 + 32);
     if (!enable) {
         ctx.fillStyle = "rgba(255,255,255, 0.5)";
         ctx.fill();
     }
     if (label != '') {
         ctx.font = "normal 9px Arial";
         ctx.fillStyle = "black";
         ctx.fillText(label, ctx.canvas.width - 47, y * 50 + 40);
     }
 }

 function drawCurveTControl() {
     ctx.lineWidth = 2;
     ctx.strokeStyle = "rgba(0,0,0, 0.3)";
     ctx.beginPath();
     ctx.rect(ctx.canvas.width - 80, 40, 28, ctx.canvas.height - 80);
     ctx.stroke();
     var ty = 40 + curveT * (ctx.canvas.height - 80);
     ctx.beginPath();
     ctx.moveTo(ctx.canvas.width - 80, ty);
     ctx.lineTo(ctx.canvas.width - 85, ty - 5);
     ctx.lineTo(ctx.canvas.width - 85, ty + 5);
     ctx.lineTo(ctx.canvas.width - 80, ty);
     ctx.fillStyle = "rgba(0,0,0, 0.6)";
     ctx.fill();
     var num = curveT.toFixed(decimal_places);
     ctx.font = "normal 10px Arial";
     ctx.textAlign = "left";
     ctx.fillText(num, ctx.canvas.width - 78, ty);
 }

 function ptInTControl() {
     var e = window.event;
 	var tgt = e.target || e.srcElement;
     var left = tgt.offsetLeft;
     var top = tgt.offsetTop;
     var x = (e.clientX - left);
     var y = (e.clientY - top);
     if (x < ctx.canvas.width - 80 || x > ctx.canvas.width - 50) {
         return false;
     }
     if (y < 40 || y > ctx.canvas.height - 80) {
         return false;
     }
     curveT = (y - 40) / (ctx.canvas.height - 120);
     if (curveT < 0 || curveT > 1) {
         throw "stop execution";
     }
     return true;
 }

 function drawTop() {
     if (tests[testIndex] == null) {
         var str = testDivs[testIndex].firstChild.data;
         parse_all(str);
         var title = testDivs[testIndex].id.toString();
         testTitles[testIndex] = title;
     }
     init(tests[testIndex]);
     redraw();
 }

 function redraw() {
     ctx.beginPath();
     ctx.fillStyle = "white";
     ctx.rect(0, 0, ctx.canvas.width, ctx.canvas.height);
     ctx.fill();
     draw(tests[testIndex], testLines[testIndex], testTitles[testIndex]);
 }

 var activeKey = 'a';
 var addKey = 'd';
 var centerKey = 'c';
 var computedKey = 'q';
 var computedBackKey = 'Q';
 var controlLinesBackKey = 'V';
 var controlLinesKey = 'v';
 var curveTKey = 'u';
 var deriviativesKey = 'f';
 var hodoKey = 'h';
 var intersectTKey = 't';
 var intersectionBackKey = 'I';
 var intersectionKey = 'i';
 var logKey = 'l';
 var logCurvesKey = 'z';
 var markKey = 'm';
 var midpointKey = 'k';
 var pathKey = 'b';
 var pathBackKey = 'B';
 var ptsKey = 'x';
 var sequenceKey = 'j';
 var sortKey = 'o';
 var stepBackKey = 'S';
 var stepKey = 's';
 var xyKey = 'y';

 function doKeyPress(evt) {
     var char = String.fromCharCode(evt.charCode);
     switch (char) {
     case '0':
     case '1':
     case '2':
     case '3':
     case '4':
     case '5':
     case '6':
     case '7':
     case '8':
     case '9':
         decimal_places = char - '0';
         redraw();
         break;
     case activeKey:
         draw_active ^= true;
         redraw();
         break;
     case addKey:
         draw_add ^= true;
         redraw();
         break;
     case centerKey:
         setScale();
         redraw();
         break;
     case controlLinesBackKey:
         control_lines = (control_lines + 3) % 4;
         redraw();
         break;
     case controlLinesKey:
         control_lines = (control_lines + 1) % 4;
         redraw();
         break;
     case computedBackKey:
         draw_computed = (draw_computed + 5) % 6;
         redraw();
         break;
     case computedKey:
         draw_computed = (draw_computed + 1) % 6;
         redraw();
         break;
     case curveTKey:
         curve_t ^= true;
         if (curve_t) {
             draw_legend = true;
         }
         redraw();
         break;
     case deriviativesKey:
         draw_deriviatives = (draw_deriviatives + 1) % 3;
         redraw();
         break;
     case hodoKey:
         draw_hodo = (draw_hodo + 1) % 4;
         redraw();
         break;
     case intersectionBackKey:
         draw_intersection = (draw_intersection + 3) % 4;
         redraw();
         break;
     case intersectionKey:
         draw_intersection = (draw_intersection + 1) % 4;
         redraw();
         break;
     case intersectTKey:
         draw_intersectT ^= true;
         redraw();
         break;
     case logCurvesKey:
         logCurves(tests[testIndex]);
         break;
     case logKey:
         draw_log ^= true;
         redraw();
         break;
     case markKey:
         draw_mark ^= true;
         redraw();
         break;
     case midpointKey:
         draw_midpoint ^= true;
         redraw();
         break;
     case pathKey:
         draw_path = (draw_path + 1) % 4;
         redraw();
         break;
     case pathBackKey:
         draw_path = (draw_path + 3) % 4;
         redraw();
         break;
     case ptsKey:
         pt_labels = (pt_labels + 1) % 3;
         redraw();
         break;
     case sequenceKey:
         draw_sequence ^= true;
         redraw();
         break;
     case sortKey:
         draw_sort ^= true;
         redraw();
         break;
     case stepKey:
         step_limit++;
         if (step_limit > stepMax) {
             step_limit = stepMax;
         }
         redraw();
         break;
     case stepBackKey:
         step_limit--;
         if (step_limit < 0) {
             step_limit = 0;
         }
         redraw();
         break;
     case xyKey:
         debug_xy ^= true;
         redraw();
         break;
     case '-':
         scale /= 2;
         calcLeftTop();
         redraw();
         break;
     case '=':
     case '+':
         scale *= 2;
         calcLeftTop();
         redraw();
         break;
     case '?':
         draw_hints ^= true;
         if (draw_hints && !draw_legend) {
             draw_legend = true;
         }
         redraw();
         break;
     case '/':
         draw_legend ^= true;
         redraw();
         break;
     }
 }

 function doKeyDown(evt) {
     var char = evt.keyCode;
     switch (char) {
     case 37: // left arrow
         if (evt.shiftKey) {
             testIndex -= 9;
         }
         if (--testIndex < 0)
             testIndex = tests.length - 1;
         drawTop();
         break;
     case 39: // right arrow
         if (evt.shiftKey) {
             testIndex += 9;
         }
         if (++testIndex >= tests.length)
             testIndex = 0;
         drawTop();
         break;
     }
 }

 function calcXY() {
     var e = window.event;
 	var tgt = e.target || e.srcElement;
     var left = tgt.offsetLeft;
     var top = tgt.offsetTop;
     mouseX = (e.clientX - left) / scale + srcLeft;
     mouseY = (e.clientY - top) / scale + srcTop;
 }

 function calcLeftTop() {
     srcLeft = mouseX - screenWidth / 2 / scale;
     srcTop = mouseY - screenHeight / 2 / scale;
 }

 function handleMouseClick() {
     if (!curve_t || !ptInTControl()) {
         calcXY();
         calcLeftTop();
     }
     redraw();
 }

 function handleMouseOver() {
     calcXY();
     if (!debug_xy) {
         return;
     }
     var num = mouseX.toFixed(decimal_places) + ", " + mouseY.toFixed(decimal_places);
     ctx.beginPath();
     ctx.rect(300,100,num.length * 6,10);
     ctx.fillStyle="white";
     ctx.fill();
     ctx.font = "normal 10px Arial";
     ctx.fillStyle="black";
     ctx.textAlign = "left";
     ctx.fillText(num, 300, 108);
 }

 function start() {
     for (var i = 0; i < testDivs.length; ++i) {
         tests[i] = null;
     }
     testIndex = 0;
     drawTop();
     window.addEventListener('keypress', doKeyPress, true);
     window.addEventListener('keydown', doKeyDown, true);
     window.onresize = function() {
         drawTop();
     }
 }

 </script>
 </head>

 <body onLoad="start();">
 <canvas id="canvas" width="750" height="500"
     onmousemove="handleMouseOver()"
     onclick="handleMouseClick()"
     ></canvas >
 </body>
 </html>