Another approach which might work in some browsers would be to try to do the frame-freezing in the client, somehow using the <canvas> tag with the toDataURL() method. I gather that some browsers are at least contemplating such a thing but am unsure if anyone has yet implemented access to SVG data with toDataURL() -- basically allowing, through ECMAScript, the conversion of an on-screen bitmap to a PNG formatted string variable. Whether such client-side rasterization (to enable image analysis among other things) is, in the long run, done through <canvas> or through methods directly within the context of SVG, remains to be seen, but I wouldn't be completely surprised if some build of Opera allows it. Finding a place to scribble all those data, while the SVG animation is actually running, might prove a little hairy.
Another really pedestrian approach would be to get one of those freeware screen session recorders that people making disposable documentation (affectionately known as "doco") use to record mouse movements and so forth to teach people how to use software. Those things have been around for at least twenty years and used to be fairly easy to use. David ----- Original Message ----- From: Cameron McCormack To: [email protected] Sent: Tuesday, November 13, 2007 6:05 PM Subject: Re: [svg-developers] Export SVG animations to series of PNG, JPG or maybe anim GIF?! Hi. tzeentch.ofhell: > Is there an easy way to create a series of images from an animated > SVG? I tried to create a batch of sorts by calling the > batik.rasterizer.jar and setting > document.rootElement.setCurrentTime(xy) in onload, but that just > causes an NullPointerException in batik. :( I think setCurentTime() in onload doesn’t work since the animation engine only kicks off after the load even is dispatched. (Just submitted http://issues.apache.org/bugzilla/show_bug.cgi?id=43854 for this.) > So, is there any tool that can do that? I could, of course, use > Stop-Motion in Inkscape, but that would be reeeeaaaal tedious and a > PIA. Any suggestions?! At the very least, you could use the -snapshotTime command line argument and repeatedly call the Batik rasteriser, e.g. something like: for t in 0 1 2 3 4 5 6 7 8 9 10; do java -jar batik-rasterizer.jar -snapshotTime $t -d img$t.png my.svg done but that would have the overhead of creating the JVM for every snapshot. You’d need to write some Java to make it more efficient, by doing: - parse the XML into a Document object - loop for every snapshot time: - invoke the transcoder for the Document with the appropriate snapshot time hint -- Cameron McCormack, http://mcc.id.au/ xmpp:[EMAIL PROTECTED] ▪ ICQ 26955922 ▪ MSN [EMAIL PROTECTED] [Non-text portions of this message have been removed] ----- 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/ <*> Your email settings: Individual Email | Traditional <*> To change settings online go to: http://groups.yahoo.com/group/svg-developers/join (Yahoo! ID required) <*> To change settings via email: mailto:[EMAIL PROTECTED] mailto:[EMAIL PROTECTED] <*> 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/
