My own personal way of doing this would be to leave the drawing-rendering to Batik, and retrieve the BufferedImage it produces. To do so, you need a JSVGComponent (no need to add it into any container) to which you add a GVTRenderingListener and a UpdateListener. (see thread from feb.2005 with subject "drawing SVG on a Canvas")
Once you have your SVG loaded, you need to apply your transformations to your SVG document in the DOM using the <transform> attribute on your SVG element. (make sure to do so in the UpdateManager thread. You can capture the UpdateManager in the JSVGComponent once the GVTTree is built).
When your document is transformed, a UpdateCompleted event will be fired, from which you can recuperate the new BufferedImage that holds your transformed SVG Document.
Snippet for running in the UpdateManager Thread:
updateManager.getUpdateRunnableQueue().invokeLater(new Runnable() {
public void run() {
yourSvgDocument.getDocumentElement.setAttribute("transform", "YOUR TRANSFORM MATRIX HERE");
}
});
Regards,
Andres.
On Feb 16, 2005, at 8:15 AM, Sylvain Caillet wrote:
Hi to all !
I'm new to this mailing-list and glad now to work with Batik!
I have very simple SVG files (only simple graphics) to manage on an AWT panel (the panel already exists so i couldn't use the canvas provided by Batik). I have created a SVGObject class which create a SVGDocument with a SVG file byte stream. After, i have to create graphical function to translate, rotate, skew, ... these SVG.
I use the following code in my SVGObject.paint() method :
GVTBuilder gtv = new GVTBuilder();
GraphicsNode gn = gtv.build(myBridgeContext, mySVGDocument);
Graphics2D g2d = (Graphics2D)g.create(extent.x,extent.y,extent.x+extent.width,extent.y+extent.height);
gn.paint(g2d);
My question is :
- how could i apply some transformations to mySVGDocument before creating the updated graphics node to paint ?
I had a look to the SVGTransformList DOM interface but i could not find any method to get this object from my SVGDocument.
I you have an idea, or an example, it would be great !
Thank you all
Sylvain Caillet
PS : SVG example:
<svg width="600" height="600" scale1000="0.1" id="main" originx="300" originy="300">
<rect x="0" width="600" y="0" height="600" style="stroke:rgb(255,255,255);fill:rgb(255,0,0);"/>
<line y2="600" x1="0" style="stroke: rgb(255, 255, 255); " x2="600" y1="0"/>
<line y2="600" x1="600" style="stroke: rgb(255, 255, 255); " x2="0" y1="0"/>
</svg>
