Hello to all.
I had the problem of painting a SVG to a Graphics2D. But I needed to
do it with out a JSVGCanvas, JSVGComponent, etc. I had a lot of
problems finding documentation, examples, etc, and finally solved the
problem by my self. This is the code, I hope it may help to others:
public static void main(String[] args) throws Exception {
SVGDocument document = null;
// Load the document
String parser = XMLResourceDescriptor.getXMLParserClassName();
SAXSVGDocumentFactory f = new SAXSVGDocumentFactory(parser);
File file = new
File(LaMierdaEsta.class.getResource("test.svg").getFile());
document = (SVGDocument) f.createDocument(file.toURL().toString());
// Build the tree and get the document dimensions
UserAgentAdapter userAgentAdapter = new UserAgentAdapter();
BridgeContext bridgeContext = new BridgeContext(userAgentAdapter);
GVTBuilder builder = new GVTBuilder();
GraphicsNode graphicsNode = builder.build(bridgeContext, document);
CanvasGraphicsNode canvasGraphicsNode = (CanvasGraphicsNode)
graphicsNode.getRoot().getChildren().get(0);
Rectangle2D bounds = canvasGraphicsNode.getSensitiveBounds();
// TODO: This is a workaround to solve the problem
// of the nodes having a clip of size 1
GVTTreeWalker treeWalker = new GVTTreeWalker(graphicsNode);
GraphicsNode currNode;
while ((currNode = treeWalker.nextGraphicsNode()) != null) {
currNode.setClip(null);
}
// XXX: We want to scale 2 in x and 1.5 in y
double scaleX = 2;
double scaleY = 1.5;
graphicsNode.setTransform(AffineTransform.getScaleInstance(scaleX,
scaleY));
// Paint it to a image using a Graphics2D
BufferedImage bufferedImage = new BufferedImage((int)
(bounds.getWidth() * scaleX), (int) (bounds.getHeight() * scaleY),
BufferedImage.TYPE_INT_RGB);
Graphics2D g2d = (Graphics2D) bufferedImage.getGraphics();
graphicsNode.paint(g2d);
g2d.dispose();
// Write the image to a file
ImageIO.write(bufferedImage, "png", new File("out.png"));
}
There is a TODO: the problem was that all objects in the tree has
clips with bounds of (0, 0, 1, 1) so the only thing I get first was a
black image only with the pixel at 0, 0 painted. I don't know why all
the clips are this way, y any one knows it please tell me. At least
the workaround works.
Regards, Demi�n Gutierrez.
PS: I',m very new using batik (a few days) so if you have coments or
suggestions about my code, they are welcomed. :-)
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