[Webkit-unassigned] [Bug 18209] Animation: SVG "rotate" transforms fail to obey the center point
bugzilla-daemon at webkit.org
bugzilla-daemon at webkit.org
Mon Jul 4 10:08:02 PDT 2011
https://bugs.webkit.org/show_bug.cgi?id=18209
--- Comment #11 from MH <martin.hejral at post.cz> 2011-07-04 10:08:02 PST ---
(In reply to comment #10)
> I'm unsure if that is right. We have the same animation like batik right now. I have to check it first. The problem on SVGTransform: We don't just add the translation on every repeat, it is like a matrix that gets _post multiplied_ to all previous transforms. Thats why I doubt that 25 after first iteration and 50 after second iteration is correct.
I understand, what you mean. It is good consideration.
By my opinion, the rock-bottom of this probles lies in this claim:
*Should be final animated-transformation after accumulation in 2 cycles:
transform="rotate(60,50,50)"* ?? (animated from="0,25,25" to="30,25,25")
Primary Question is: YES or NO?
================================
If confirmed YES, then Opera + FF are correct...
> Note that I changed the behavior of accumulation lately. We now calculate the distance from 0 to 100% for the first iteration 100% to 200% for the second iteration and so on.
It looks absolutely correct... the only possible "hanger" I see, is which value is iterated (transform matrix or XML attributes) I am not sure if we can iterate matrix...
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