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To: batik-users@xmlgraphics.apache.org
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Subject: RE: CSS ignored when exporting to JPG
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From: thomas.deweese@kodak.com
Date: Tue, 11 Apr 2006 10:53:32 -0400
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Hi Dylan,

"Dylan Browne" <dbrowne@mango-solutions.com> wrote on 04/11/2006 10:48:01 
AM:

> Is there anyway I can keep my existing code which imports my stylesheet,
> which is - 
> 
> ProcessingInstruction pi =
> doc.createProcessingInstruction("xml-stylesheet","C:\svg\style.css");
> doc.insertBefore(pi, doc.getDocumentElement());
>
> I don't quite see why this is picked up ok in the browser and renders 
the
> SVG fine, but the stylesheet is not found when I choose to export the 
file
> to JPG using the transcoder classes.

   "C:\svg\style.css" is a relative URL, you need to make it absolute.
When the browser renders the file it provides the base url of the document
(which is likely a 'file:' URL) which is used to turn the relative URL 
into
an absolute URL.  I suspect all you need to do is use:

        "file:///C:/svg/style.css"

    Typically I will use the JDK provided functionality
        new File("C:\svg\style.css").toURL()

    Which almost always gives the 'expected' behavior for files...

> Thanks in advance again for any help,
> 
> Regards,
> Dylan.
> 
> 
> -----Original Message-----
> From: thomas.deweese@kodak.com [mailto:thomas.deweese@kodak.com] 
> Sent: 11 April 2006 14:13
> To: batik-users@xmlgraphics.apache.org
> Cc: batik-users@xmlgraphics.apache.org
> Subject: RE: CSS ignored when exporting to JPG
> 
> Hi Dylan,
> 
> "Dylan Browne" <dbrowne@mango-solutions.com> wrote on 04/11/2006 
07:12:20 
> AM:
> 
> > So Im guessing the stylesheet is not being found now?
> > org.w3c.dom.DOMException: Null Document reference: Invalid CSS 
document.
> 
>    Correct, most likely Batik can't find your CSS style sheet.  Commonly
> this is cause by using a relative reference when a Document without a 
> knowable base url is used.  In this case the problem is that you haven't
> properly set the xlink:href attribute:
> 
> 
> >         css.setAttributeNS(null, "xlink:href",
> > "http://localhost:7001/SVGWeb/style.css");
> 
>     This needs to be:
>         String XLINK_NAMESPACE_URI = "http://www.w3.org/1999/xlink";
>         css.setAttributeNS(XLINK_NAMESPACE_URI , "xlink:href",
>  "http://localhost:7001/SVGWeb/style.css");
> 
>     Assuming you have an HTTP server on local host at port 7001
> with a document at that location...
> 
> 
> > -----Original Message-----
> > From: Dylan Browne [mailto:dbrowne@mango-solutions.com] 
> > Sent: 11 April 2006 11:13
> > To: batik-users@xmlgraphics.apache.org
> > Subject: CSS ignored when exporting to JPG
> > 
> > Hi,
> > 
> > I have a problem when attempting to rasterize an SVG document created 
> using
> > the Batik DOM classes. It looks like the rasterize process is not 
> picking up
> > the stylesheet I am importing.
> > 
> > I include my stylesheet like this (this works fine in so far as 
> rendering
> > SVG in the browser goes):
> > 
> >         ProcessingInstruction pi = null;
> >         // import the stylesheet
> >         pi = doc.createProcessingInstruction("xml-stylesheet", 
> Config.CSS);
> >         doc.insertBefore(pi, doc.getDocumentElement());
> > 
> > When I am creating my JPG, I use the following code. This does 
generate 
> the
> > jpg, but any elements which are styled are not picked up so I end up 
> with a
> > largely black image with a few shapes visible:
> > 
> >     public void streamSVGIntoImageFormat(SVGDocument doc) {
> >         try {
> >             // create a JPEG transcoder
> >             JPEGTranscoder t = new JPEGTranscoder();
> >             // set the transcoding hints
> >             t.addTranscodingHint(JPEGTranscoder.KEY_QUALITY, new 
> Float(.8));
> >             // create the transcoder input
> >             TranscoderInput input = new TranscoderInput(doc);
> >             // create the transcoder output
> >             OutputStream ostream = new 
FileOutputStream("c:\\out.jpg");
> >             TranscoderOutput output = new TranscoderOutput(ostream);
> >             // save the image
> >             t.transcode(input, output);
> >             // flush and close the stream then exit
> >             ostream.flush();
> >             ostream.close();
> >         } catch (Exception e) {
> >            e.printStackTrace();
> >         }
> >     }
> > 
> > Does this look like an issue with how I import my stylesheet, or an 
> issue
> > with how I am calling the Transcoder code?
> > 
> > Thanks in advance for any help,
> > 
> > Kind regards,
> > 
> > Dylan
> > 
> > 
> > ---------------------------------------------------------------------
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> > For additional commands, e-mail: 
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> > 
> > 
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> > 
> 
> 
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