Hi:
My suggestion is to read the Java Graphics 2D information you need from the GVT tree.
Once you load a SVGDocument into a JSCGComponent (you do not need a canvas to access the GVT), you can access the GVT by adding a GVTTreeBuilderListener to your SVGComponent, in the gvtBuildCompleted event.
Once you have the GVT tree, you can walk through it, and retrieve the Graphics2D representation of your SVG file.
I use this method to feed a DXF exporter Library that requires Graphics 2D objects to transform into DXF and it works perfectly.
Basically:
public SomeMethod() {JSVGComponent svg = new JSVGComponent();
svg.addSVGDocumentLoaderListener(new SVGDocumentLoaderAdapter() {
public void documentLoadingStarted(SVGDocumentLoaderEvent e) {
}
public void documentLoadingCompleted(SVGDocumentLoaderEvent e) {
}
});
svg.addGVTTreeBuilderListener(new GVTTreeBuilderAdapter() {
public void gvtBuildStarted(GVTTreeBuilderEvent e) {
}
public void gvtBuildCompleted(GVTTreeBuilderEvent e) {
// Now the tree is ready, we have to walk through it
GVTTreeWalker tw = new GVTTreeWalker(e.getGVTRoot());
GraphicsNode node = tw.firstChild();
////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////
// Walk through the tree to locate and extract the Graphics info you want.
////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////
}
});try {
svg.loadSVGDocument(f.toURL().toString());
}
catch(Exception e){
System.out.println("Could not load SVG file into Component. "+e);
} }
On Jun 23, 2004, at 12:48 PM, Arek Stryjski wrote:
Hi,
I'm wondering that is the simplest way to change SVG into Java Image.
I will need to change XML fragment (one of org.w3c.dom.svg.SVGElement returned
from org.w3c.dom.events.Event.getTarget()) into java.awt.Image
In most cases the produced Image will be kind of Icon for element. I don't need
to save it in any format, I will use it in other swing components.
I was looking at org.apache.batik.transcoder and one way I see, is to implement
my own ImageTranscoder, TranscoderInput and TranscoderOutput
However maybe there are some ready classes that could help me to do part of this
job, or maybe there is some other place in Batik I should look for solution for
this.
Best regards Arek
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