salut jean-david, the (a?) svg plugin and its scripting engine handles vectors and only knows about this vector based DOM. rasterizing indeed takes place within the rendering engine, but this is at the end of the pipeline where you have no more access (ASV's rendering engine is not ASV-specific, it gets used in different adobe products, most of them are not web-related...).
people also asked for a possibility of knowing the color on a certain pixel, it is the same impossible rendering thing. one more reason why you cannot get the information you want via the pixel result is that SVG uses the painter algorithm *and* allows opacity levels, filter effects and anit-alisiasing. thus a red color can be #ff0000 or a combination of filter, opacity effects and underlaying objects. you should basically know what you draw on the canvas, thus using geometry algorithms are best advice (not funny for everyone, but working). andré -- ___________________________________________________________________ andre m. winter, <http://www.carto.net/> <http://www.vectoreal.com/> <http://tirolatlas.uibk.ac.at/> Jean-David Benamou schrieb: > Sorry I think I was not clear enough : > > [EMAIL PROTECTED] wrote: > > >>Hi, >> >>There are no pixels in vector graphics. >> > > > but the rendering engine has to know the area to paint ?? > > >>The best you can do is calculate >>the enclosed surface in ECMAScript or JS and map it to your pixel size. >> >> >> > > Right but that can be a complicated and time expensive algorithm (for any > shape ... if I use dome kind of triangulation algorithm for instance) and > I am sure these computations are already done (at least at the rendering > level) because the graphic card has to know where to paint the fill zone. > > That was why I was thinking of pixels ... but If I had the surface of the > fill zone in (SVG unit)^2 I would be very happy. > > Thanks > JD > > > >>Ronan >> >> >> >> >>>Hi ------------------------ Yahoo! Groups Sponsor --------------------~--> $9.95 domain names from Yahoo!. Register anything. http://us.click.yahoo.com/J8kdrA/y20IAA/yQLSAA/1U_rlB/TM --------------------------------------------------------------------~-> ----- To unsubscribe send a message to: [EMAIL PROTECTED] -or- visit http://groups.yahoo.com/group/svg-developers and click "edit my membership" ---- Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/svg-developers/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
