Does anyone know if it's possible, either natively or mathematically with javascript, to implement the evenodd fill-rule from SVG in the HTML5 canvas element? Links to projects that do this would be helpful.
Thanks!
A:
Yes, it should be possible with globalCompositeOperation. If I'm not mistaken, default "source-over" value should correspond to SVG's "evenodd" (otherwise, try few others one and see if resulting image looks identical).
kangax
2009-09-10 04:23:08
This works if you are drawing more than one shape. But if you are drawing a single path, it does not. Any other thoughts?
devongovett
2009-11-09 03:10:38
A:
By mathematically do you mean an algorithm implementation ? It is certainly possible, see http://gpolo.awardspace.info/fill/main.html. It is more a demo than anything, but it solves this issue "mathematically".
Abc
2010-07-09 03:37:23