[whatwg] [canvas] Proposal isPointInStroke(x, y)

Dirk Schulze dschulze at adobe.com
Sat May 4 17:27:25 PDT 2013

On May 3, 2013, at 5:10 PM, Ian Hickson <ian at hixie.ch> wrote:

> On Tue, 13 Nov 2012, Jeff Muizelaar wrote:
>> We have recently implemented isPointInStroke(x,y) in Firefox 
>> (https://bugzilla.mozilla.org/show_bug.cgi?id=803124). This is a 
>> parallel to isPointInPath(x,y) and returns true if the point is inside 
>> the area contained by the stroking of a path. It was easily implemented 
>> on top of Direct2D, Cairo, Skia, and CoreGraphics and shouldn't be 
>> difficult for other systems.
>> We implemented this to help support functionality needed for shumway 
>> (flash on html)
> Thanks for the heads-up. This is now in the spec as well.

Sorry for the late interference. isPointInStroke is implemented in WebKit and Blink for quite some time and should be in release versions already. No objection from this side :)

I would suggest a third argument:

	optional CanvasFillRule fillRule = "nonzero"

As we have for fill. (This is implemented in WebKit and Blink as well.)


> -- 
> Ian Hickson               U+1047E                )\._.,--....,'``.    fL
> http://ln.hixie.ch/       U+263A                /,   _.. \   _\  ;`._ ,.
> Things that are impossible just take longer.   `._.-(,_..'--(,_..'`-.;.'

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