AW: Failure to generate XML after using SVGGraphics2D apparently OK.

Yinka Martins Mon, 03 May 2004 08:42:57 -0700

Title: Failure to generate XML after using SVGGraphics2D apparently OK.

Hey John,

That’s just the problem i had too using batik. (actually it’s one of the many problems I had). Though an experienced Java Developer, I could not tame the batik framework, spending a month trying to get it to do what I needed. My suggestion: there is another framework for Java / SVG out there. Its available at http://sis.cmis.csiro.au/svg . Although it’s development was stopped 2002, it’s just as complete as batik (some features are missing, but then there are others batik is lacking). The SVGToolkit, as it is called, is *** much *** less complex than batik. It took me a day to port all my batik code to SvgToolkit and get it running….

Give it a try, it worked fine for me ;-)

Greetz,

Yinka Martins.

-----Urspr�ngliche Nachricht-----
Von: Jones, John JH SITI-ITADED [mailto:[EMAIL PROTECTED]
Gesendet: Montag, 3. Mai 2004 16:44
An: [EMAIL PROTECTED]
Betreff: Failure to generate XML after using SVGGraphics2D apparently OK.

Hi,
I am using W2000 and Oracle Jdeveloper 9.0.3. I downloaded BATIK 1.5.1 on 17th April.

I have 30+ years of software experience but am a beginner at JAVA and BATIK and mailing lists . This is my first graphics program. (I have read the BATIK FAQ but quite a lot of it has no meaning for me.)

The program appears to work when I do not attempt to generate the XML. i.e the frame displays what I am expecting. I am trying to capture the XML in order to view the diagram in a browser. I have followed http://xml.apache.org/batik/svggen.html .

When I try to generate the XML after displaying the output, there are no exceptions raised or other messages but all I get is :

<?xml version="1.0" encoding="UTF-8"?>

<!DOCTYPE svg PUBLIC '-//W3C//DTD SVG 1.0//EN' 'http://www.w3.org/TR/2001/REC-SVG-20010904/DTD/svg10.dtd'>
<svg style="stroke-dasharray:none; shape-rendering:auto; font-family:'Arial'; text-rendering:auto; fill-opacity:1; color-rendering:auto; color-interpolation:auto; font-size:12; fill:black; stroke:black; image-rendering:auto; stroke-miterlimit:10; stroke-linecap:square; stroke-linejoin:miter; font-style:normal; stroke-width:1; stroke-dashoffset:0; font-weight:normal; stroke-opacity:1;" xmlns="http://www.w3.org/2000/svg" width="700" contentScriptType="text/ecmascript" preserveAspectRatio="xMidYMid meet" xmlns:xlink="http://www.w3.org/1999/xlink" zoomAndPan="magnify" version="1.0" contentStyleType="text/css" height="700">

<defs id="genericDefs" />
<g />
</svg>

Here are my imports and what I think to be the relevant bit of the main method:

package helen;
//import java.awt.Frame;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import javax.swing.UIManager;
import javax.swing.JFrame;
import java.awt.Dimension;
import java.awt.Toolkit;
import org.apache.batik.swing.*;
import org.apache.batik.svggen.*;
import org.apache.batik.dom.svg.SVGDOMImplementation;
import org.w3c.dom.*;
import org.w3c.dom.svg.*;
import java.awt.geom.*;
import java.awt.*;
import java.io.*;
      .................
// SVG set-up
    DOMImplementation impl = SVGDOMImplementation.getDOMImplementation();
    String svgNS = SVGDOMImplementation.SVG_NAMESPACE_URI;
    SVGDocument doc = (SVGDocument)impl.createDocument(svgNS, "svg", null);

SVGGraphics2D g = new SVGGraphics2D(doc);

Diag d = new Diag(g, xlim, ylim, xorig, yorig, 3600);

// Draw into g. For example:
    d.buildDiag();        //Builds the internal representation of diagram
    d.drawDiag();        //Uses SVGGraphics2D to draw the diagram
    g.setSVGCanvasSize(dim);

// The following populates the document root with the
// generated SVG content.
Element root = doc.getDocumentElement();
g.getRoot(root);

// Now, display the document
    JSVGCanvas canvas = new JSVGCanvas();
    frame.getContentPane().add(canvas);
    canvas.setSVGDocument(doc);
// frame.pack();
    frame.setVisible(true);

    System.out.println("Back from DrawDiag & display.");
    try
    { OutputStream outStream= new FileOutputStream("C:\\TEMP\\Helen_plasmid1.xml", false);
      Writer out = new OutputStreamWriter(outStream, "UTF-8");
//      Writer out = new OutputStreamWriter(System.out, "UTF-8");
//
      g.stream(out,true);
      Thread.sleep(10000);   // In case something is being slow.
      out.close();
    } catch (Exception e)
    { System.out.println("Failed to write xml version.");
    };
    System.out.println("Back from xml gen.");
}
          ........................

Any suggestions please?

John

AW: Failure to generate XML after using SVGGraphics2D apparently OK.

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