| var filtersFactory = (function(){ |
| var ob = {}; |
| ob.createFilter = createFilter; |
| ob.createAlphaToLuminanceFilter = createAlphaToLuminanceFilter; |
| |
| function createFilter(filId){ |
| var fil = createNS('filter'); |
| fil.setAttribute('id',filId); |
| fil.setAttribute('filterUnits','objectBoundingBox'); |
| fil.setAttribute('x','0%'); |
| fil.setAttribute('y','0%'); |
| fil.setAttribute('width','100%'); |
| fil.setAttribute('height','100%'); |
| return fil; |
| } |
| |
| function createAlphaToLuminanceFilter(){ |
| var feColorMatrix = createNS('feColorMatrix'); |
| feColorMatrix.setAttribute('type','matrix'); |
| feColorMatrix.setAttribute('color-interpolation-filters','sRGB'); |
| feColorMatrix.setAttribute('values','0 0 0 1 0 0 0 0 1 0 0 0 0 1 0 0 0 0 1 1'); |
| return feColorMatrix; |
| } |
| |
| return ob; |
| }()); |