Setting the Size in DOM built by SVGGraphics2D

[Kirsch, Juergen A.]

I want to set the attributes 'width' and 'height' an the root-element of the DOM-tree that is built by SVGGraphics2D before outputting it to a file. But this doeasn't work! Can anybody help me please? This is my code:

 

            DOMImplementation impl = SVGDOMImplementation.getDOMImplementation();
            String svgNS = SVGDOMImplementation.SVG_NAMESPACE_URI;
            Document document = impl.createDocument(svgNS, "svg", null);
            SVGGraphics2D svgGenerator = new SVGGraphics2D(document);
            org.w3c.dom.Element svgRoot = svgGenerator.getRoot();
            if(comp instanceof QbChart){
                ((QbChart)comp).draw(svgGenerator, comp, d.width, d.height);
            } else {
                if(comp instanceof ZOwnerDrawnChart) {
                    ZOwnerDrawnChart oChart = (ZOwnerDrawnChart)comp;
                    oChart.setStringCalculationGraphics(svgGenerator);
                    oChart.setSize(d.width, d.height);
                    oChart.containerResized();
                }
                boolean opaque = comp.isOpaque();
                comp.setOpaque(true);
                svgGenerator.setClip(new java.awt.Rectangle(0, 0, d.width, d.height));
                comp.paint(svgGenerator);
                comp.setOpaque(opaque);
            }
            try {
                // set the width and height attribute on the root svg element
                svgRoot.setAttributeNS(null, "width", "15cm");
                svgRoot.setAttributeNS(null, "height", "10cm");
                //
                boolean useCSS = true;
                Writer out = new OutputStreamWriter(oStream, "UTF-8");
                svgGenerator.stream(out, useCSS);

            } catch .....