The way I did this on a similar project was to put the new elements and attributes in a different namespace.
Batik does not try to render those elements, but it does make them available through the DOM.
G. Wade
Weiming Zhang wrote:
Hi,
Thank you very much.
Is it possible to rendering such svg content with Batik?
Yes, and no. There are some issues with the above example, like Batik requires an SVGDocument with a 'getRoot' method that returns the 'root' SVG element. So you might be able to write a 'hacked' document object that 'behaved' correctly however...
I tried the sample from SVG specification but it did not work. You are right, it has to have svg element as root for batik rendering.
I want to use
some custom XML tags to add some extra information to the document. For
example, I may specify for certain group of graphic shapes, there are
certain callbacks. Those callbacks will be specified as either elements
or attributes.
This makes me think that you may want (or at least get away with) something that looks more like:
<svg:svg width="4cm" height="8cm" version="1.1" xmlns="http://example.org"; xmlns:svg="http://www.w3.org/2000/svg";> <svg:ellipse cx="2cm" cy="4cm" rx="2cm" ry="1cm"> <callback-list> <!-- callbacks for the ellipse element --> <callback name="foo" function="bar"/> </callback-list> </svg:ellipse> </svg:svg>
This will work trivially "right out of the box".
This indeed works! But the callback related elements are not in SVG DTD, so batik does not validate the document? If I make a DTD or schema by adding some extra information to SVG DTD (is it possible to do inheritance with a DTD?), how can I let batik know?
Thanks.
wz
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