Re: Help request for generating an SVG export

[Xavier Roger-Machart <xrogermachart AT gmail.com>]

Thanks, I'll give it a try in the coming days and get back to you.

2012/3/26 guilhelm savin <guilhelm.savin AT gmail.com>

Hi Xavier,

You can try to use the new FileSinkSVG2 that I have

just pushed :

|

| import org.graphstream.stream.file.FileSinkSVG2;

|

| ...

|

| String path = "C:\\test.svg";
| 
| Graph graph = new SingleGraph("GraphStream");
| 

| 

| // If there is no layout computed, you need to

| // compute one :

|

| SpringBox sb = new SpringBox();

| graph.addSink(sb);

|

| // -------------------------------------------

|

| graph.addNode("A");
| graph.addNode("B");

| graph.addNode("C");
| graph.addEdge("AB", "A", "B");
| graph.addEdge("BC", "B", "C");
| graph.addEdge("CA", "C", "A");

| 

| // Compute the layout

| 

| sb.addAttributeSink(graph);

| sb.shake();

| sb.compute();

| 

| while (sb.getStabilization() < 1)

|  sb.compute();

| 

| // ------------------

|

|
| FileSink out = new FileSinkSVG2();
| 
| try {
|    out.writeAll(graph, path);

| } catch (IOException ex) {
|    Logger.getLogger(App.class.getName()).log(Level.SEVERE, null, ex);
|    return;
| }

| 

This is a really draft version so tell me bugs you

meet and I will try to fix them.

Hope this helps ...

Guilhelm

2012/3/21 Xavier Roger-Machart <xrogermachart AT gmail.com>

Hello,

I'm trying to create an SVG export of a simple graph, however I could not find a way to have a working image yet. Here's roughly what I wrote :

        String path = "C:\\test.svg";

        Graph graph = new SingleGraph("GraphStream");
       
        graph.addNode("A");
        graph.addNode("B");
        graph.addNode("C");
        graph.addEdge("AB", "A", "B");
        graph.addEdge("BC", "B", "C");
        graph.addEdge("CA", "C", "A");
       
        FileSink out = FileSinkFactory.sinkFor(path);
       
        try {
            out.writeAll(graph, path);
            out.flush();
        } catch (IOException ex) {
            Logger.getLogger(App.class.getName()).log(Level.SEVERE, null, ex);
            return;
        }

This will generate an SVG file that actually contains some lines, but it seems they've not been organized yet or something. Also it contains lines not no points :

<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<svg xmlns:svg="http://www.w3.org/2000/svg" width="100%" height="100%">
  <g id="AB">
    <line x1="0.000000" y1="0.000000" x2="0.000000" y2="0.000000"/>
  </g>
  <g id="BC">
    <line x1="0.000000" y1="0.000000" x2="0.000000" y2="0.000000"/>
  </g>
  <g id="CA">
    <line x1="0.000000" y1="0.000000" x2="0.000000" y2="0.000000"/>
  </g>

What am I doing wrong here, and is there any documentation I missed out on that particular subject ?

Thanks

Xavier

--
Guilhelm Savin
PhD Student of Computer Science

LITIS, University of Le Havre
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http://gsavin.lewub.org

http://d3-project.org
http://iscn.univ-lehavre.fr
http://graphstream-project.org
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