Wolfgang Laun created BATIK-1158:
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Summary: <mask> using <filter> not rendered correctly
Key: BATIK-1158
URL: https://issues.apache.org/jira/browse/BATIK-1158
Project: Batik
Issue Type: Bug
Components: GVT
Affects Versions: 1.8
Environment: Ubuntu 14.04, java 1.8.0_60
Reporter: Wolfgang Laun
This svg below is supposed to create a white polygon on grey background, and is
rendered correctly in Firefox. But trying to display in Java using JSVGCanvas
shows white stripes in the background. As a workaround, opacity in <use> seems
to work. (Original files come from wikipedia's constellations, e.g.
en.wikipedia.org/wiki/Leo_(constellation) )
<svg xmlns="http://www.w3.org/2000/svg";
xmlns:xlink="http://www.w3.org/1999/xlink"; width="485.028pt" height="456.053pt"
viewBox="0 0 485.028 456.053" version="1.1">
<defs>
<filter id="alpha" filterUnits="objectBoundingBox" x="0%" y="0%" width="100%"
height="100%">
<feColorMatrix type="matrix" in="SourceGraphic" values="0 0 0 0 1 0 0 0 0 1 0
0 0 0 1 0 0 0 1 0"/>
</filter>
<mask id="mask0">
<g filter="url(#alpha)">
<rect x="0" y="0" width="486" height="457"
style="fill:rgb(100%,100%,100%);fill-opacity:0.149994;stroke:none;"/>
</g>
</mask>
<g id="surface2">
<path style="
stroke:none;fill-rule:nonzero;fill:rgb(13.730068%,12.159915%,12.54902%);fill-opacity:1;"
d="M 376.316406 213.578125 L 309.726562 248.511719 L 310.457031 254.695312 L
296.265625 256.878906 L 282.4375 258.335938 L 285.347656 287.808594 L
278.070312 289.265625 L 282.4375 339.847656 L 272.976562 340.9375 L 274.070312
350.035156 L 253.328125 114.960938 L 277.707031 112.050781 L 303.90625
108.050781 L 317.003906 66.203125 L 336.652344 61.105469 L 353.027344 55.648438
L 399.605469 206.664062 L 376.316406 213.578125 Z M 0.800781 384.96875 L
420.34375 384.96875 L 420.34375 0.335938 L 0.800781 0.335938 L 0.800781
384.96875 Z M 0.800781 384.96875 "/>
</g>
</defs>
<g id="surface0">
<use xlink:href="#surface2" transform="matrix(1,0,0,1,33,18)"
mask="url(#mask0)"/>
<!--use xlink:href="#surface2" transform="matrix(1,0,0,1,33,18)"
opacity="0.15"/-->
</g>
</svg>
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JFrame f = new JFrame("Batik");
final JPanel panel = new JPanel(new BorderLayout());
JSVGCanvas svgCanvas = new JSVGCanvas();
panel.add("Center", svgCanvas);
File file = new File( "aaa.svg" );
svgCanvas.setURI(file.toURI().toURL().toString());
f.getContentPane().add( panel );
f.setSize(600, 600);
f.setVisible(true);
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