Problems with setSVGDocument

Wed, 21 Jan 2004 10:06:44 -0800

Hi,
I have an RDF document that contains an "svg node", i.e. information suitable to be displayed on a JSVGCanvas:
I have developed an application that creates an empty SVGDocument, parses the RDF file, extracts the "svg node" from it and appends it to the SVGDocument.
The SVGDocument I obtain this way is correct, but when I call JSVGCanvas.setSVGDocument(svgDoc) it is not displayed.
(NB: I set my JSVGcanvas ALWAYS DYNAMIC)


Here is a fragment of my code:
public void showSvg(){
JSVGCanvas svgCanvas;
parserDom = new DOMParser();
DOMImplementation impl = SVGDOMImplementation.getDOMImplementation();
SVGDOMImplementation svgImpl = (SVGDOMImplementation) SVGDOMImplementation.getDOMImplementation();
String svgNS = SVGDOMImplementation.SVG_NAMESPACE_URI;

........

                try{
                        parserDom.parse(fileRDF.toURL().toString());
                        doc = parserDom.getDocument();

                        }
                        catch(SAXException e){
                                System.out.println("The file is not well formed");
                        }
                        catch(IOException e){
                                System.out.println("errore di IO nella lettura del file 
rdf");
                                }
                
                        
                tempDoc = impl.createDocument(svgNS,"svg",null);
                
        //***parse the RDF***
                
                DocumentTraversal trav = (DocumentTraversal)doc;
                        NodeIterator ni = trav.createNodeIterator(
                        doc.getDocumentElement(),
                        NodeFilter.SHOW_ELEMENT,
                        this,
                        true);
                        
                    dummyRoot = tempDoc.getDocumentElement();
                
                while(((node = ni.nextNode())!= null)){
                                Node importedNode = tempDoc.importNode(node, true);    
 
                                dummyRoot.appendChild(importedNode);
                                System.out.println("ho fatto l'append!!!");            
               
                                  }
                                        svgDoc = (SVGDocument)tempDoc;
                                
                        svgCanvas.setDocument(svgDoc);  //this doesn't work
                

           /////*******Nodes Filtering*******/////////  
                     public short acceptNode(Node node){
                                 if(node.getNodeName().equals("g"))
                                return FILTER_ACCEPT;
                                else return FILTER_SKIP;
                        }
                   }


Here is the rdf document:
<?xml version="1.0" encoding="UTF-8"?>
<web:RDF xmlns:web="http://www.w3.org/1999/02/22-rdf-syntax-ns#";
        xmlns="http://www.w3.org/2000/svg";
        xmlns:comed="schema#" >

<Record web:about="radiografia-1" comed:name="documentoanalisi.doc">
 <comed:content>
    <svg width="475" height="387" xmlns:xlink="http://www.w3.org/1999/xlink"; >
    <g visibility ="visible" id="xray">
    <image x="0" y="0" width="475" height="387" xlink:href="xray.jpg"/>
    </g>
    </svg>
 </comed:content>
  <comed:comments>
      <comed:note web:about="commento-1_2" comed:name="Dr. Livingstone"/>
      <comed:note web:about="commento-1_1" comed:name="Dr. Stranamore"/>
  </comed:comments>
</Record>

</web:RDF>




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