commit f52a063dfd7883bbaa58617416a48c2be724e36b
author robertphillips <robertphillips@google.com> Mon Nov 17 12:11:42 2014 -0800
committer Commit bot <commit-bot@chromium.org> Mon Nov 17 12:11:42 2014 -0800
tree 33ba011391752281e896396e655edf5783953aca
parent a18cc77c338e79b5de5c7ee883da31f6befad9bc

Fix yet another convexicator issue

This CL fixes the case where a bad initial vector (i.e., nearly zero) managed to short circuit all of the convexicator's logic. The initial bad vector would become the last vector and then never get displaced.

The history of this is:

https://codereview.chromium.org/298973004/
Switched the convexicator to not advance the last vector when the cross product wasn't significant

https://codereview.chromium.org/573763002/
Fixed a bug (crbug.com/412640) wherein a zero area path was being incorrectly categorized as convex b.c. opposite but equal vectors were not signaling concavity.

BUG=433683

Review URL: https://codereview.chromium.org/727283003