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From Thomas DeWeese <thomas.dewe...@gmail.com>
Subject Re: Problem using path objects (SVGOMPathElement) parsed from svg file
Date Sat, 24 Nov 2012 12:14:36 GMT
Hi Nierop,

   I'm fairly sure that the problem is that you haven't booted the SVG DOM.
 Please see the following link for information on how to do that:

http://wiki.apache.org/xmlgraphics-*batik*/BootSvgAndCssDom

On Thu, Nov 22, 2012 at 3:04 AM, Nierop, P. van <p.van.nierop@vu.nl> wrote:

>  My next goal is to read in this svg file and generate a object
> representation of the path element (try to make it a valid SVGOMPathElement
> instance) This is the java code with which I try to read the svg:
>
> import java.io.File;
> import java.io.IOException;
> import java.net.URI;
> import org.apache.batik.dom.svg.SAXSVGDocumentFactory;
> import org.apache.batik.dom.svg.SVGOMPathElement;
> import org.apache.batik.util.XMLResourceDescriptor;
> import org.w3c.dom.Element;
> import org.w3c.dom.svg.SVGDocument;
>
> public class TestSVGDomParser {
>
>     public static void main(String[] args) throws IOException {
>
>         URI fileURI = new File("basedrawing.svg").toURI();
>
>         String parser = XMLResourceDescriptor.getXMLParserClassName();
>         SAXSVGDocumentFactory f = new SAXSVGDocumentFactory(parser);
>         SVGDocument doc = (SVGDocument) f.createDocument(
> fileURI.toString() );
>
>         // try to get a path using the unique identifier
>         Element e = doc.getElementById("test");
>
>         // cast to path
>         SVGOMPathElement path = (SVGOMPathElement) e;
>
>         // works fine
>         System.out.println( path.getAttribute("d") );
>
>         // does not work, throws a null pointer exception
>         System.out.println( path.getTotalLength() );
>     }
>
> }
>
> The problem I think is that the cast of the e (instance of Element) to
> path (instance of SVGOMPathElement) does not trigger the internal
> interpretation of the 'd' attribute. I conclude from this that I do not
> follow the proper procedures to build the object representation of the svg
> document.
>
> Could someone advise me on how to proceed?
>
> Thanks in advance,
>
> Pim
>
>
> --
>
> *-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-
>
>    Pim van Nierop
>
>    Center for Neurogenomics and Cognitive Research
>    Faculty of Earth and Life Sciences
>    Vrije Universiteit
>    Amsterdam
>    Email    pim.van.nierop@cncr.vu.nl
>    Tel.     +31 (0)20 5987114
>    Fax.     +31 (0)20 5987112
>
> *-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-
>
>
>

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