Hi Rob,
[EMAIL PROTECTED] wrote:
Hello, I tried to include a viewbox-attribute when
exporting a Graphics2D to SVG using batik.
I tried to include a viewbox via the batik-examples as given on the website
(and as suggested in above links), using the given StyleSheetStyleHandler:
[...]
/** According to [EMAIL PROTECTED] do setPrecision(int precision)
* to bypass the otherwise occurring java.lang.NullPointerException
* at
org.apache.batik.svggen.SVGGeneratorContext.doubleString(SVGGeneratorContext.java:420)
* due to "a bug in doubleString where we did not initialize the DecimalFormat
object".
**/
ctx.setPrecision(3); // 3 is SVG-default as mentioned in
SVGGeneratorContext.java.
This bug has been fixed for a while so you shouldn't have to do
this (although it doesn't hurt much).
//something to set size of xml-document:
ctx.setComment("Generated by The Visual Language with Batik SVG Generator");
// Create an instance of the SVG Generator with context and document
SVGGraphics2D svg2d = new SVGGraphics2D(ctx, false);
// add a style sheet to the definition section
Element root = svg2d.getRoot();
Element defs = root.getElementById(SVGSyntax.ID_PREFIX_GENERIC_DEFS);
getElementById is also on the org.w3c.dom.svg.SVGSVGElement
interface, which is the real type of 'root'.
Element style =
document.createElementNS(SVGSyntax.SVG_NAMESPACE_URI,SVGSyntax.SVG_STYLE_TAG);
style.setAttributeNS(null, SVGSyntax.SVG_TYPE_ATTRIBUTE, "text/css");
style.setAttributeNS(null, "viewBox", "0, 0, 600, 400" );
This should probably be 'root' that you set 'viewBox' on
not the 'style' element.
style.appendChild(styleSheet);
defs.appendChild(style);
There is no real need for 'style' to be a child of defs, I normally
stick under the root SVG element ('root' in your code).
But the compiler (in JDK 1.5) doesn't accept:
root.getElementById(SVGSyntax.ID_PREFIX_GENERIC_DEFS);
(the method belongs to Document, not Element...)
How can I proceed ...?
See above.
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