[jira] [Created] (BATIK-1099) Changing an SVGAnimateElement at runtime doesn't work

["Marco Herrn (JIRA)" <ji...@apache.org>]

Marco Herrn created BATIK-1099:
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             Summary: Changing an SVGAnimateElement at runtime doesn't work
                 Key: BATIK-1099
                 URL: https://issues.apache.org/jira/browse/BATIK-1099
             Project: Batik
          Issue Type: Bug
          Components: GVT
    Affects Versions: 1.7
            Reporter: Marco Herrn


Modifying an existing SVGAnimateElement at runtime leads to no visible change.

See for example this SVG snippet:

<g id="someId">
        <line ... />
        <line ... />
        <animate dur="0.2" from="0" to="1" repeatCount="indefinite"
                 attributeName="stroke-opacity" 
                 calcMode="discrete"/>
        <animate dur="0.2" from="0" to="1" repeatCount="indefinite"
                 attributeName="fill-opacity"
                 calcMode="discrete"/>
</g>

Trying to change this at runtime with the following code:

canvas.getUpdateManager().getUpdateRunnableQueue().invokeLater(new Runnable() {
  public void run() {
    for (SVGElement elm : currentlySelectedElements) {
      elm.setAttributeNS(null, "stroke", "green");
      Set<SVGAnimateElement> animateElements= getAnimateElements(elm);
      for (SVGAnimateElement anim : animateElements) {
        anim.setAttributeNS(null, "dur", "1");
      }
    }
  }
}); 

should result in a slower blinking frequency. However the blinking frequency stays the same. The stroke color is changed, however. So this seems to be a problem only with SVGAnimateElements.

See http://stackoverflow.com/questions/27439359 for more details about the problem



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