Hi. Jim Graham pointed out this bug to me.
A fix is here: http://icedtea.classpath.org/~dlila/webrevs/7036754/webrev/ It just checks for inf/nan and just emits a line joining the endpoints in that case. The stroking is no longer symmetric with respect to right and left polynomial degrees. This is a bit more general. I have a question: The "curve is a straight line" check I use is this: 737 float dotsq = (dx1 * dx3 + dy1 * dy3); 738 dotsq = dotsq * dotsq; 739 float l1sq = dx1 * dx1 + dy1 * dy1, l3sq = dx3 * dx3 + dy3 * dy3; 740 if (Helpers.within(dotsq, l1sq * l3sq, 4 * Math.ulp(dotsq))) { However, this isn't making much sense mathematically right now. I would like to avoid redoing the math so if someone can quickly confirm/deny that it works that would be nice. Thank you, Denis.
