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[Jung-support] error creating graph by GraphML file
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From: parinda <par...@ya...> - 2003-11-26 17:32:39
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Here is my simple application creating the graph from
raphMLFile
************************************
package test.edu.uci.ics.jung.algorithms.cluster;
import edu.uci.ics.jung.graph.Graph;
import
edu.uci.ics.jung.algorithms.cluster.BicomponentClusterer;
import edu.uci.ics.jung.algorithms.cluster.ClusterSet;
import edu.uci.ics.jung.io.GraphMLFile;
import edu.uci.ics.jung.utils.StringInputStream;
import javax.swing.JFrame;
//import edu.uci.ics.jung.io.PajekNetFile;
import edu.uci.ics.jung.visualization.GraphDraw;
/**
* @author Scott White
*/
public class TestBicomponentClusterer2 {
public TestBicomponentClusterer2(){
}
static GraphDraw gd;// Added by Parinda
static Graph graph; //Added by Parinda
public static void main(String[] args) {
TestBicomponentClusterer2 t = new
TestBicomponentClusterer2();
t.testExtract1();
}
public static void testExtract1() {
StringBuffer buffer= new StringBuffer();
buffer.append("<?xml version=\"1.0\"
encoding=\"iso-8859-1\" ?>\n");
buffer.append("<graph
edgedefault=\"undirected\">\n");
buffer.append("<node id=\"1\"/>\n");
buffer.append("<node id=\"2\"/>\n");
buffer.append("<node id=\"3\"/>\n");
buffer.append("<node id=\"4\"/>\n");
buffer.append("<node id=\"5\"/>\n");
buffer.append("<node id=\"6\"/>\n");
buffer.append("<edge source=\"1\"
target=\"2\"/>\n");
buffer.append("<edge source=\"1\"
target=\"6\"/>\n");
buffer.append("<edge source=\"1\"
target=\"4\"/>\n");
buffer.append("<edge source=\"1\"
target=\"5\"/>\n");
buffer.append("<edge source=\"2\"
target=\"6\"/>\n");
buffer.append("<edge source=\"4\"
target=\"5\"/>\n");
buffer.append("<edge source=\"3\"
target=\"4\"/>\n");
buffer.append("</graph>\n");
GraphMLFile graphmlFile = new GraphMLFile();
// graph = graphmlFile.load(new
StringInputStream(buffer.toString()));
graph = graphmlFile.load("C:/graph
library/jung/test/edu/uci/ics/jung/algorithms/cluster/datafile.graphml");
//BicomponentClusterer finder = new
BicomponentClusterer();
//ClusterSet bicomponents = finder.extract(graph);
//Assert.assertEquals(bicomponents.size(),2);
JFrame jf = new JFrame();
gd = new GraphDraw(graph);
jf.getContentPane().add(gd);
jf.setDefaultCloseOperationJFrame.EXIT_ON_CLOSE);
jf.pack();
jf.show();
}
}
***************************************
***************************************
here is the file datafile.graphml
<?xml version="1.0" encoding="iso-8859-1" ?>
<graph edgedefault="undirected">
<node id="1"/>
<node id="2"/>
<node id="3"/>
<node id="4"/>
<edge source="1" target="2"/>
<edge source="1" target="3"/>
<edge source="1" target="4"/>
<edge source="4" target="2"/>
</graph>
***************************************
***************************************
and Here is the first part of error messages it gives:
java.lang.NullPointerException
at
sun.awt.font.FontDesignMetrics.stringWidth(FontDesignMetrics.java:281
)
at
edu.uci.ics.jung.visualization.graphdraw.SettableRenderer.paintVertex
(SettableRenderer.java:238)
at
edu.uci.ics.jung.visualization.VisualizationViewer.paintComponent(Vis
ualizationViewer.java:290)
at
javax.swing.JComponent.paint(JComponent.java:808)
at
javax.swing.JComponent.paintChildren(JComponent.java:647)
at
javax.swing.JComponent.paint(JComponent.java:817)
at
javax.swing.JComponent.paintChildren(JComponent.java:647)
at
javax.swing.JComponent.paint(JComponent.java:817)
at
javax.swing.JComponent.paintChildren(JComponent.java:647)
at
javax.swing.JComponent.paint(JComponent.java:817)
at
javax.swing.JLayeredPane.paint(JLayeredPane.java:557)
at
javax.swing.JComponent.paintChildren(JComponent.java:647)
at
javax.swing.JComponent.paintWithOffscreenBuffer(JComponent.java:4794)
at
javax.swing.JComponent.paintDoubleBuffered(JComponent.java:4740)
at
javax.swing.JComponent.paint(JComponent.java:798)
at
java.awt.GraphicsCallback$PaintCallback.run(GraphicsCallback.java:21)
at
sun.awt.SunGraphicsCallback.runOneComponent(SunGraphicsCallback.java:
60)
at
sun.awt.SunGraphicsCallback.runComponents(SunGraphicsCallback.java:97
)
at
java.awt.Container.paint(Container.java:1312)
at
sun.awt.RepaintArea.paint(RepaintArea.java:177)
at
sun.awt.windows.WComponentPeer.handleEvent(WComponentPeer.java:260)
at
java.awt.Component.dispatchEventImpl(Component.java:3678)
at
java.awt.Container.dispatchEventImpl(Container.java:1627)
at
java.awt.Window.dispatchEventImpl(Window.java:1606)
at
java.awt.Component.dispatchEvent(Component.java:3477)
at
java.awt.EventQueue.dispatchEvent(EventQueue.java:456)
at
java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchTh
read.java:201)
at
java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThre
ad.java:151)
at
java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:145)
at
java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:137)
at
java.awt.EventDispatchThread.run(EventDispatchThread.java:100)
java.lang.NullPointerException
at
sun.awt.font.FontDesignMetrics.stringWidth(FontDesignMetrics.java:281
)
at
edu.uci.ics.jung.visualization.graphdraw.SettableRenderer.paintVertex
(SettableRenderer.java:238)
at
edu.uci.ics.jung.visualization.VisualizationViewer.paintComponent(Vis
ualizationViewer.java:290)
at
javax.swing.JComponent.paint(JComponent.java:808)
at
javax.swing.JComponent.paintWithOffscreenBuffer(JComponent.java:4787)
at
javax.swing.JComponent.paintDoubleBuffered(JComponent.java:4740)
at
javax.swing.JComponent._paintImmediately(JComponent.java:4685)
at
javax.swing.JComponent.paintImmediately(JComponent.java:4488)
at
javax.swing.RepaintManager.paintDirtyRegions(RepaintManager.java:410)
at
javax.swing.SystemEventQueueUtilities$ComponentWorkRequest.run(System
EventQueueUtilities.java:117)
at
java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:178)
at
java.awt.EventQueue.dispatchEvent(EventQueue.java:454)
at
java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchTh
read.java:201)
at
java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThre
ad.java:151)
at
java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:145)
at
java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:137)
at
java.awt.EventDispatchThread.run(EventDispatchThread.java:100)
java.lang.NullPointerException
at
sun.awt.font.FontDesignMetrics.stringWidth(FontDesignMetrics.java:281
)
at
edu.uci.ics.jung.visualization.graphdraw.SettableRenderer.paintVertex
(SettableRenderer.java:238)
at
edu.uci.ics.jung.visualization.VisualizationViewer.paintComponent(Vis
ualizationViewer.java:290)
at
javax.swing.JComponent.paint(JComponent.java:808)
at
javax.swing.JComponent.paintWithOffscreenBuffer(JComponent.java:4787)
at
javax.swing.JComponent.paintDoubleBuffered(JComponent.java:4740)
at
javax.swing.JComponent._paintImmediately(JComponent.java:4685)
at
javax.swing.JComponent.paintImmediately(JComponent.java:4488)
at
javax.swing.RepaintManager.paintDirtyRegions(RepaintManager.java:410)
at
javax.swing.SystemEventQueueUtilities$ComponentWorkRequest.run(System
EventQueueUtilities.java:117)
at
java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:178)
at
java.awt.EventQueue.dispatchEvent(EventQueue.java:454)
at
java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchTh
read.java:201)
at
java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThre
ad.java:151)
at
java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:145)
at
java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:137)
at
java.awt.EventDispatchThread.run(EventDispatchThread.java:100)
java.lang.NullPointerException
at
sun.awt.font.FontDesignMetrics.stringWidth(FontDesignMetrics.java:281
)
at
edu.uci.ics.jung.visualization.graphdraw.SettableRenderer.paintVertex
(SettableRenderer.java:238)
at
edu.uci.ics.jung.visualization.VisualizationViewer.paintComponent(Vis
ualizationViewer.java:290)
at
javax.swing.JComponent.paint(JComponent.java:808)
at
javax.swing.JComponent.paintWithOffscreenBuffer(JComponent.java:4787)
at
javax.swing.JComponent.paintDoubleBuffered(JComponent.java:4740)
at
javax.swing.JComponent._paintImmediately(JComponent.java:4685)
at
javax.swing.JComponent.paintImmediately(JComponent.java:4488)
at
javax.swing.RepaintManager.paintDirtyRegions(RepaintManager.java:410)
at
javax.swing.SystemEventQueueUtilities$ComponentWorkRequest.run(System
EventQueueUtilities.java:117)
at
java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:178)
at
java.awt.EventQueue.dispatchEvent(EventQueue.java:454)
at
java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchTh
read.java:201)
at
java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThre
ad.java:151)
at
java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:145)
at
java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:137)
at
java.awt.EventDispatchThread.run(EventDispatchThread.java:100)
java.lang.NullPointerException
at
sun.awt.font.FontDesignMetrics.stringWidth(FontDesignMetrics.java:281
)
at
edu.uci.ics.jung.visualization.graphdraw.SettableRenderer.paintVertex
(SettableRenderer.java:238)
at
edu.uci.ics.jung.visualization.VisualizationViewer.paintComponent(Vis
ualizationViewer.java:290)
at
javax.swing.JComponent.paint(JComponent.java:808)
at
javax.swing.JComponent.paintWithOffscreenBuffer(JComponent.java:4787)
at
javax.swing.JComponent.paintDoubleBuffered(JComponent.java:4740)
at
javax.swing.JComponent._paintImmediately(JComponent.java:4685)
at
javax.swing.JComponent.paintImmediately(JComponent.java:4488)
at
javax.swing.RepaintManager.paintDirtyRegions(RepaintManager.java:410)
at
javax.swing.SystemEventQueueUtilities$ComponentWorkRequest.run(System
EventQueueUtilities.java:117)
at
java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:178)
at
java.awt.EventQueue.dispatchEvent(EventQueue.java:454)
at
java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchTh
read.java:201)
at
java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThre
ad.java:151)
at
java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:145)
at
java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:137)
at
java.awt.EventDispatchThread.run(EventDispatchThread.java:100)
java.lang.NullPointerException
at
sun.awt.font.FontDesignMetrics.stringWidth(FontDesignMetrics.java:281
)
at
edu.uci.ics.jung.visualization.graphdraw.SettableRenderer.paintVertex
(SettableRenderer.java:238)
at
edu.uci.ics.jung.visualization.VisualizationViewer.paintComponent(Vis
ualizationViewer.java:290)
at
javax.swing.JComponent.paint(JComponent.java:808)
at
javax.swing.JComponent.paintWithOffscreenBuffer(JComponent.java:4787)
--- Yan-Biao Boey <yb...@uc...> wrote:
> Glad to hear that you got it running. You would have
> to write you own
> program to convert your database data to the Pajek
> format in order to have
> them read by JUNG. You can refer to the sample
> graphs in samples.datasets
> for the format. The Pajek files are all those with a
> ".net" extension.
>
> The Pajek web page is at
> http://vlado.fmf.uni-lj.si/pub/networks/pajek/. I
> believe the manual has a good description of what a
> Pajek file format
> should look like.
>
> Biao
>
>
> At 07:19 AM 11/25/2003, parinda wrote:
> >Hey Bio,
> >It's running now. It was my mistake. I was trying
> >Samples.graph.SimpleGraphDraw but it should be
> >"samples.graph.SimpleGraphDraw".Thanks for your
> help.
> >By the way I am very new to graph Drawing.In the
> >documentation of JUNG they are saying that the
> graph
> >should be read from the PajekNetfile. Is there
> anyway
> >I can build a graph based on data in my database?
> >
> >=====
> >
> >
> >__________________________________
> >Do you Yahoo!?
> >Free Pop-Up Blocker - Get it now
> >http://companion.yahoo.com/
>
=====
__________________________________
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