RESOLVED DUPLICATE of bug 45107 Bug 45170
dragging a slider over population pyramid is slow and lagging 
https://bugs.webkit.org/show_bug.cgi?id=45170
Summary dragging a slider over population pyramid is slow and lagging
Michael N.
Reported 2010-09-03 04:43:43 PDT
on the animated population pyramid of statistics Germany http://www.destatis.de/bevoelkerungspyramide/ choose "Altersgruppen ändern" (de) or "Change Age-Groups" (en) in the lower right. The pyramid then changes its color and exposes two blue rectangles that are used as sliders, allowing you to change age groups. Moving these sliders is slow and laggy and selects the text. This is a lot smoother in other browsers. During SVGopen this could be reduced to SVG being part of HTML in the above example and the following reduced testcase as standalone SVG doesn't reproduce the behaviour http://vis.uell.net/testcases/slider.svg Keep in mind however that this standalone SVG doesn't do any computations while dragging the slider (in this case a yellow rectangle).
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Nikolas Zimmermann
Comment 1 2010-09-03 07:16:05 PDT
Hi Michael, thanks for the bug report, I already filed a bug with your reduced testcase at 45107. Marking as duplicate. Patch is about to be uploaded. Cheers, Niko *** This bug has been marked as a duplicate of bug 45107 ***
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