How to Make Transparent SVG Transparent in Java?
I have SVG file that actually empty, that have no element, yet. I will manipulate it in the java code by adding element. The SVG file will be inserted in a scrollpane. The problem is even the SVG file actually empty, the Scrollpane not transparent even if I have already set it transparent.
Here is the SVG file (I got it from client):
<?xml version="1.0" encoding="utf-8"?>
<!-- Generator: Adobe Illustrator 13.0.0, SVG Export Plug-In . SVG Version: 6.00 Build 14948) -->
<svg version="1.1"
baseProfile="full"
xmlns="http://www.w3.org/2000/svg"
xmlns:xlink="http://www.w3.org/1999/xlink"
xmlns:ev="http://www.w3.org/2001/xml-events">
id="chart"
width="1366px" height="768px" viewBox="0 0 1366 768" >
<defs>
<!-- some template here -->
</defs>
</svg>
and here is the scroll pane part (canvasDiagram is the SVGCanvas).
// the instantiation part
canvasDiagram.setDocumentState(JSVGCanvas.ALWAYS_DYNAMIC);
canvasDiagram.setURI(getClass().getResource("path to svg file").toString());
scrollPane 开发者_运维问答= new JScrollPane(canvasDiagram){
{
setOpaque(false);
getViewport().setOpaque(false);
}
};
The scrollpane is not transparent but white. I tried to insert the scroll pane content with transparent jPanel and its work so I believe the white content because of the canvasDiagram. Can you help me to make the empty part of canvasDiagram really transparent?
I found that setting a background with alpha value works more reliable than setting isOpaque(false)
setBackground(new Color(0,0,0,0));
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