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From Vincent Hardy <vha...@eng.sun.com>
Subject Re: Question: Graphics ->SVG->JPEG
Date Thu, 08 Feb 2001 22:33:30 GMT
Kevin,

Have a look at:

http://www-sop.inria.fr/koala/batik/mlists/batik-users/archives/msg00069.html

there is an example of what you are trying to do. The whole discussion
thread is at:

http://www-sop.inria.fr/koala/batik/mlists/batik-users/archives/threads.html

V.

Kelvin Ho wrote:
> 
> I try to generate a graphic using Batik and then convert to JPEG but I got
> java.lang.ClassCastException: org.apache.batik.dom.GenericDocument
> at org.apache.batik.refiml.transcoder.ImageTranscoder.transcodeToStream
> (ImageTranscoder.java:46)
> at zeo.transform(zeo.java:450)
> 
> Any ideal?
> 
> And here is the source code:
> 
>         DOMImplementation domImpl =
> GenericDOMImplementation.getDOMImplementation();
>         Document document = domImpl.createDocument(null, "svg", null);
>         svgGenerator = new SVGGraphics2D(document);
> 
>     svgGenerator.setSVGCanvasSize(new java.awt.Dimension (600,600));
>     svgGenerator.setPaint(Color.white);
>     svgGenerator.drawLine (100,0,100,700);
>     svgGenerator.fill(new Rectangle(10, 10, 100, 100));
> 
>       svgGenerator.stream (filename,CSS);
> 
>    String mimeType ="image/jpeg";
> 
>     TranscoderFactory factory =
> ConcreteTranscoderFactory.getTranscoderFactoryImplementation();
>     Transcoder t = factory.createTranscoder(mimeType);
>     if (t == null) {
>       System.out.println ("No transcoder found for mime type : "+mimeType);
>       System.exit(1);
>     }
>     try {
>       int k = mimeType.lastIndexOf('/');
>       String ext = mimeType.substring(k+1);
>       String url = filename.substring(0,filename.indexOf(".svg")) + "." +
> ext;
> 
>       OutputStream ostream = new BufferedOutputStream(new
> FileOutputStream(url));
> // Exception happen here!!!!
>       t.transcodeToStream(svgGenerator.getDOMFactory(), ostream);
>       ostream.flush();
>       ostream.close();
>     } catch (Exception e) {
>       e.printStackTrace();
>     }
> 
> Regards
> Kelvin
> 
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