General CANVAS question.

[xul-vipz]

I'm not sure who to ask, but maybe you guys have an answer for me or can point me in the right direction.

A while ago I saw an simple demonstration of the CANVAS element:
(slide 20) http://www.mozilla-japan.org/events/200 ... ns/mscott/

At that time I was browsing with Firefox and the following question arose:

Is it possible to save a CANVAS graphical element to an image format on disk like PNG?

An addtional question (I didn't read the specs fully, so you may ignore this one):

Can I update CANVAS graphs dynamically? (like in: http://ecmanaut.blogspot.com/2006/01/sv ... taken.html)

[zcorpan]

Is it possible to save a CANVAS graphical element to an image format on disk like PNG?

Yes. The browser could provide UI for this, e.g. in the context menu. There's a method in the DOM for this, toDataURL(): http://www.whatwg.org/specs/web-apps/cu ... #todataurl

Can I update CANVAS graphs dynamically? (like in: http://ecmanaut.blogspot.com/2006/01/sv ... taken.html)

You draw on the canvas with script to create the graphs in the first place. So yes.