Adding element to DOM (problem)

[Vepsu <ve...@gmail.com>]

Hello, 

I have a problem and I can't seem to get around it.. 

So my java-app loads SVG-map and then I'm trying to add an element to it by
using DOM and I would like to see the change in SVGCanvas.

But when I add an element, the svgCanvas doesn't seem to update at all, even
that I'm pretty sure that the DOM-structure changes.
Funny thing is, that setAttributes -method works nicely and I can change
elements which are
already there (ie. change a fill-color for a circle).

Some code: 

// Loading the document

            String parser = XMLResourceDescriptor.getXMLParserClassName();
            SAXSVGDocumentFactory f = new SAXSVGDocumentFactory(parser);
            String uri = img.toString();
            doc = (SVGDocument)f.createDocument(uri);

            JSVGCanvas svgCanvas = new JSVGCanvas();
            svgCanvas.setDocumentState(JSVGCanvas.ALWAYS_DYNAMIC); 

            svgCanvas.setSVGDocument((SVGDocument)doc);

// Trying to add DOM-element

        UpdateManager um = svgCanvas.getUpdateManager(); 
        um.getUpdateRunnableQueue().invokeLater(new Runnable() {
                public void run() {

                    // This WORKS
                    Element cir = doc.getElementById("mycircle");
                    cir.setAttribute("fill", "yellow");
                    
                    // This doesn't
                    Element newMarker = doc.createElement("circle");
                    newMarker.setAttribute("cx", "120");
                    newMarker.setAttribute("cy", "120");
                    newMarker.setAttribute("fill", "blue");
                    newMarker.setAttribute("r", "50");
                    newMarker.setAttribute("stroke", "black");
                    newMarker.setAttribute("stroke-width", "4");
                   
svgCanvas.getSVGDocument().getRootElement().appendChild(newMarker);
                    
                    svgCanvas.repaint();
                    
                }    
        }); 

Any help would be welcomed.

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Re: Adding element to DOM (problem)

[Vepsu <ve...@gmail.com>]

Archie Cobbs wrote:
> 
> On Wed, Jun 4, 2008 at 7:11 AM, Vepsu <ve...@gmail.com> wrote:
>>                    Element newMarker = doc.createElement("circle");
> 
> That should be createElementNS(SVG_NAMESPACE_URI, "circle") instead...
> 
> -Archie
> 
> -- 
> Archie L. Cobbs
> 
> 

Thank you Archie, that did the trick. I also had to change the
namespace-parameters to null for the setAttributeNS -methods.

But it works now, you saved my day.
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Re: Adding element to DOM (problem)

[Archie Cobbs <ar...@dellroad.org>]

On Wed, Jun 4, 2008 at 7:11 AM, Vepsu <ve...@gmail.com> wrote:
>                    Element newMarker = doc.createElement("circle");

That should be createElementNS(SVG_NAMESPACE_URI, "circle") instead...

-Archie

-- 
Archie L. Cobbs