Hi sent1729,
[email protected] wrote on 05/31/2006 11:20:27 AM:
> I use Batik as my SVG browser. I am having couple of images
> in my SVG document. How to refer those images inside the SVG
> document by using a relative path to the database. My database could
> sit any where on my computer and I am trying to tie the images
> inside the svg document with respect to the location of the database.
> My question:
> Is it possible to refer the xlink:href attribute relative to the
> database so that I can avoid the step of writing the doc to a file
> and directly open the doc from the database.
Yes, in fact there are a number of ways to accomplish this...
> This is what I do to directly open the doc from the database:
> TransformerFactory tmf=TransformerFactory.newInstance();
> Transformer tf=tmf.newTransformer();
> DOMSource source=new DOMSource(doc);
> StreamResult result=new StreamResult("name of file for
output");
I would suggest using a DOMResult with an SVGDocument element
(gotten from: org.apache.batik.dom.svg.SVGDOMImplementation). This
will avoid the need to generate XML and reparse that speeding things
up a bit.
> tf.transform(source,result);
> svgRoot = (SVGElement) doc.getDocumentElement();
> svgCanvas.setDocument(doc);
Given the above code I'm surprised to see this since I would
have expected you to give the filename from above.
If you have the document in memory as a batik.dom.svg.SVGOMDocument
(Batik's implementation of the SVGDocument interface) then you
can call 'setURLObject(URL baseURL)' to set the URL against which
all relative URL's will be resolved.
You can also use the 'xml:base' attribute to adjust the base
URL for resolution of relative URL's within subparts of the SVG
tree (or the whole tree if you set it on the root SVG element).
I hope this helps.
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