15225 2011-12-16 08:16:32 +0000 If an arc is given a negative radius couldn't the result of that just flip or invert the arc? It would be better than throwing an error, and what I'd expect to happen in that case. 2012-09-19 19:34:06 +0000 1 1 1 Unclassified WHATWG HTML unspecified Other other RESOLVED NEEDSINFO http://www.whatwg.org/specs/web-apps/current-work/#complex-shapes-(paths) P3 normal Unsorted 1 contributor ian ian jaredwilli mike contributor oldest_to_newest 61648 0 contributor 2011-12-16 08:16:32 +0000 Specification: http://www.whatwg.org/specs/web-apps/current-work/multipage/the-canvas-element.html Multipage: http://www.whatwg.org/C#complex-shapes-(paths) Complete: http://www.whatwg.org/c#complex-shapes-(paths) Comment: If an arc is given a negative radius couldn't the result of that just flip or invert the arc? It would be better than throwing an error, and what I'd expect to happen in that case. Posted from: 98.217.69.190 by jaredwilli@gmail.com User agent: Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/535.2 (KHTML, like Gecko) Chrome/15.0.874.121 Safari/535.2 63250 1 ian 2012-01-28 22:05:20 +0000 What do browsers do? 70487 2 contributor 2012-07-18 08:27:46 +0000 This bug was cloned to create bug 18014 as part of operation convergence. 74081 3 ian 2012-09-19 19:34:06 +0000 I'm going to punt on this for now since browsers are implementing this consistently. I would be interested in seeing examples where you run into negative radii, to see what the best thing to do in those cases would be — I could imagine cases where it's better to take the magnitude, some where it's better to not draw anything, some where it's better to draw a single dot, some where it's better to invert the arc, and I would love to know which cases actually come up in reality.