Thanks thomas that worked. Now I have a question. I've tried early to put
my statement inside runnablequeue but gives me a nullpointerexception(i
think). That is when I didn't set my document state. So then is
runnablequeue only available when the document state is set to dynamic?
vyang
thomas.deweese wrote:
>
> Hi Vyang,
>
> vyang <[EMAIL PROTECTED]> wrote on 02/23/2007 03:58:58 PM:
>
>> I meant its an image of a svg file on server. I added your line of code
> to
>> my constructor and it doesn't seem to work. It is coded as follows:
>
> I suspect the problem is that you are modifying the document while
> Batik is trying to build the rendering tree. There are a number
> of ways to avoid this problem. Probably the simplest is to
> clone the entire tree into a new document before giving it to
> the Canvas to display.
>
> The best way would be to change the way you are doing everything
> and make your Document a dynamic SVG document. This would allow you
> to modify the document and have the Canvas automatically update the
> display. For this to work however you need to make all your changes
> to the document in the update manager's RunnableQueue. You can
> look at the Batik FAQ for information on how to run thing in
> the RunnableQueue.
>
>> impl = SVGDOMImplementation.getDOMImplementation();
>> svgNS = SVGDOMImplementation.SVG_NAMESPACE_URI;
>> xlinkNS = XMLConstants.XLINK_NAMESPACE_URI;
>>
>> doc = impl.createDocument(svgNS, "svg", null);
>> SVGOMDocument omDocument = (SVGOMDocument) doc;
>> try {
>> omDocument.setURLObject(new
> File("c:/icontemp.svg").toURL());
>> } catch (MalformedURLException ex) {
>> ex.printStackTrace();
>> }
>>
>> svgRoot = doc.getDocumentElement();
>> groupElement = doc.createElementNS(svgNS, "g");
>> svgRoot.appendChild(groupElement);
>>
>> I also notice that if I type real slow the image doesn't get broken up
> (my
>> method gets called after a key is pressed). Any thoughts on whats
>> happening?
>>
>> vyang
>
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