Support rectangular clipPaths
fskpf opened this issue · 4 comments
At least simple rect clipPaths should be possible.
Can't we draw into a separate canvas with the clipPaths dimensions and then draw this canvas onto the output canvas?
You can just clip in general, I guess. But the result may not be ideal (e.g. with zigzag fills). Doesn't canvas have a way of clipping to a region?
https://developer.mozilla.org/en-US/docs/Web/API/CanvasRenderingContext2D/clip
This should work. I assume that clipPaths can be defined anywhere in the SVG and referenced by any element as well. So I'd do something similar as for the defs (collect them first and reuse where needed?)
That should work, yeah. I think you can probably generate the clipping region for canvas directly and re-use that. But shapes inside a clip-path may still have an ID that could be referenced in a use, so we must not skip them entirely for normal processing. Although I think we collect the shapes with ID via XPath anyway, so that shouldn't be affected.
I probably won't find time today with family and SpaceX, though ;)