Hallo,
I'm very new to batik, and I spent several hours with Google to find a solution
for my problem, but without success.
I'm trying to parse a SVG which uses several "use" tags with "xlink:href". The
goal is to transform the svg into dxf format. The "parent" SVG can consist of
many use-tags, that address external SVG files with fragments (#):
<svg>
...
<use xlink:href="file:/C:/files/mySVG_1.SVG#Fragment_1" x="0" y="0"/>
<use xlink:href="file:/C:/files/mySVG_2.SVG#Fragment_2" x="0" y="0"/>
...
</svg>
The external files themselves consist of several group-tags, that can be
addressed by internal fragments again, e. g. "mySVG_1.SVG":
<svg>
...
<g id=" Fragment_1" >
<use xmlns:xlink="http://www.w3.org/1999/xlink";
xlink:href="#internalFragment_1"/>
<use xmlns:xlink="http://www.w3.org/1999/xlink";
xlink:href="#internalFragment_2"/>
</g>
...
<g id="internalFragment_1" >
<circle cx="491.5" cy="130" r="12.5" />
...
<path d="M 477 210 L 513 210 L 513 50 L 477 50 z" />
...
</g>
<g id="internalFragment_2" >
...
</g>
...
</svg>
What I need is the "primitives" of the "internalFragment_1" (circles, paths,
rectangles, etc.) to pass them to the appropriate dxf-methods.
In my SVG-parsing code I can detect the "SVGOMUseElement". I "manually" load
the external SVG (e. g. "mySVG_1.SVG") and recursively call my parsing method
with it:
void myTransform(Document doc, dxfContext);
...
else if (node instanceof SVGOMUseElement)
{
Document innerDoc = loadDocument(XLinkSupport.getXLinkHref((Element)
n));
if (innerDoc != null)
{
myTransform(innerDoc, dxfContext);
}
else
{
//if loadDocument (my own method) returns null, the link target
was not an external file but a simple internal fragment
//what to do here to resolve the internalFragments down to the
primitives?
}
...
But when I get the internal SVGOMUseElement addressed by "Fragment_1" I don't
know how to resolve the content of the addressed "internalFragment_1". There
are no childNodes or a shadowtree or something like that.
What is the right way to resolve the internal fragment of a SVG to get its'
primitives?
Thank you very much for your help.
Kind Regards.
Michael
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