- From: Dean Jackson <dean@w3.org>
- Date: Tue, 20 Jul 2004 15:13:41 +1000
- To: Jim Ley <jim@jibbering.com>
- Cc: www-svg@w3.org
On Sat 17 Jul 2004, Jim Ley wrote: > > > "Chris Lilley" <chris@w3.org> wrote in message > news:792044751.20040717184656@w3.org... > > > > On Saturday, July 17, 2004, 12:28:47 PM, Jim wrote: > > JL> So there's no change allowing getPixel work on SVG Canvases aswell > > then? > > > > JL> That's a shame, what's the problem with it? > > > > OK, try to specify what it does in the general case. > > Rasterise the SVG canvas, and use getPixel exactly as you do on a Raster > image. > > The existing draft doesn't mention much about what the X and Y longs refer > to in getPixel I guess the intention is that it's raster pixel in the > co-ordinate space of the image, otherwise you'd have the same sampling > problems as with Vector formats I guess. That's right. We mean (x,y) in the raster image coords. > In which case all you need to > define is the size (so whole units in the user coordinate space maybe, or in > terms of pixel for example.) of the image to be rastered before being able > to call getPixel on it. That might be possible, but some implementations don't want to rasterize. Dean
Received on Tuesday, 20 July 2004 01:14:13 UTC