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Hi Bill,
thanks for your fast help. The DisplayImplJ3D with a TwoDDisplayRendererJ3D is
indeed a lot faster and probably satisfies my speed needs. However, though I
only changed the type of display from
display = new DisplayImplJ2D("display1");
to
display = new DisplayImplJ3D("display1", new TwoDDisplayRendererJ3D());
my application crashs after a while with a java.lang.IndexOutOfBoundsException
[...] at javax.media.j3d.J3dThread.run. Then I tried the P5_01 example with the
3D modification and set the number sample points to 10000. Same error after a
while (see full error trace below). The original 2D version works fine (and
slow) with 10000 samples. I think the error is somewhere in VisAD or Java3D.
You find the modificated P5_01 attached.
Cheers,
Timo
PS. Here's the output of two runs:
~/da/test/visad: java P5_01
java.lang.IndexOutOfBoundsException: Index: -1, Size: 1
at java.util.ArrayList.RangeCheck(ArrayList.java:491)
at java.util.ArrayList.get(ArrayList.java:307)
at javax.media.j3d.RenderBin.findOrderedCollection(RenderBin.java:3061)
at javax.media.j3d.RenderBin.findEnvironmentSet(RenderBin.java:3449)
at javax.media.j3d.RenderBin.insertRenderAtom(RenderBin.java:2867)
at javax.media.j3d.RenderBin.processGeometryAtoms(RenderBin.java:2398)
at javax.media.j3d.RenderBin.processMessages(RenderBin.java:974)
at
javax.media.j3d.StructureUpdateThread.doWork(StructureUpdateThread.java:83)
at javax.media.j3d.J3dThread.run(J3dThread.java:256)
Exception in thread "main" java.lang.OutOfMemoryError
<<no stack trace available>>
java.lang.NullPointerException
at visad.DerivedUnit.toThis(DerivedUnit.java:718)
at visad.DerivedUnit.toThis(DerivedUnit.java:659)
at visad.BaseUnit.toThat(BaseUnit.java:462)
at visad.BaseUnit.toThis(BaseUnit.java:376)
at visad.Unit.convertTuple(Unit.java:74)
at visad.FlatField.getFloats(FlatField.java:1131)
at
visad.ShadowFunctionOrSetType.doTransform(ShadowFunctionOrSetType.java:1333)
at javax.media.j3d.J3dThread.run(J3dThread.java:256)
Exception in thread "main" java.lang.OutOfMemoryError
<<no stack trace available>>
java.lang.NullPointerException
at visad.DerivedUnit.toThis(DerivedUnit.java:718)
at visad.DerivedUnit.toThis(DerivedUnit.java:659)
at visad.BaseUnit.toThat(BaseUnit.java:462)
at visad.BaseUnit.toThis(BaseUnit.java:376)
at visad.Unit.convertTuple(Unit.java:74)
at visad.FlatField.getFloats(FlatField.java:1131)
at
visad.ShadowFunctionOrSetType.doTransform(ShadowFunctionOrSetType.java:1333)
at
visad.java3d.ShadowFunctionOrSetTypeJ3D.doTransform(ShadowFunctionOrSetTypeJ3D.java:101)
at
visad.java3d.DefaultRendererJ3D.doTransform(DefaultRendererJ3D.java:98)
at visad.java3d.RendererJ3D.doAction(RendererJ3D.java:195)
at visad.DisplayImpl.doAction(DisplayImpl.java:1008)
at visad.ActionImpl.run(ActionImpl.java:225)
at visad.util.ThreadPool$ThreadMinnow.run(ThreadPool.java:86)
Terminated
--------
2nd run:
~/da/test/visad: java P5_01
Exception in thread "main" java.lang.OutOfMemoryError
<<no stack trace available>>
at
visad.java3d.ShadowFunctionOrSetTypeJ3D.doTransform(ShadowFunctionOrSetTypeJ3D.java:101)
at
visad.java3d.DefaultRendererJ3D.doTransform(DefaultRendererJ3D.java:98)
at visad.java3d.RendererJ3D.doAction(RendererJ3D.java:195)
at visad.DisplayImpl.doAction(DisplayImpl.java:1008)
at visad.ActionImpl.run(ActionImpl.java:225)
at visad.util.ThreadPool$ThreadMinnow.run(ThreadPool.java:86)
Terminated
~/da/test/visad: java P5_01
Exception in thread "main" java.lang.OutOfMemoryError
<<no stack trace available>>
java.lang.NullPointerException
at visad.DerivedUnit.toThis(DerivedUnit.java:718)
at visad.DerivedUnit.toThis(DerivedUnit.java:659)
at visad.BaseUnit.toThat(BaseUnit.java:462)
at visad.BaseUnit.toThis(BaseUnit.java:376)
at visad.Unit.convertTuple(Unit.java:74)
at visad.FlatField.getFloats(FlatField.java:1131)
at
visad.ShadowFunctionOrSetType.doTransform(ShadowFunctionOrSetType.java:1333)
at
visad.java3d.ShadowFunctionOrSetTypeJ3D.doTransform(ShadowFunctionOrSetTypeJ3D.java:101)
at
visad.java3d.DefaultRendererJ3D.doTransform(DefaultRendererJ3D.java:98)
at visad.java3d.RendererJ3D.doAction(RendererJ3D.java:195)
at visad.DisplayImpl.doAction(DisplayImpl.java:1008)
at visad.ActionImpl.run(ActionImpl.java:225)
at visad.util.ThreadPool$ThreadMinnow.run(ThreadPool.java:86)
java.lang.NullPointerException
at visad.DerivedUnit.toThis(DerivedUnit.java:718)
at visad.DerivedUnit.toThis(DerivedUnit.java:659)
at visad.BaseUnit.toThat(BaseUnit.java:462)
at visad.BaseUnit.toThis(BaseUnit.java:376)
at visad.Unit.convertTuple(Unit.java:74)
at visad.FlatField.getFloats(FlatField.java:1131)
at visad.ShadowFunctionOrSetType.doTransform(ShadowFunctionOrSetType.jav
a:1333)
at visad.java3d.ShadowFunctionOrSetTypeJ3D.doTransform(ShadowFunctionOrS
etTypeJ3D.java:101)
at visad.java3d.DefaultRendererJ3D.doTransform(DefaultRendererJ3D.java:9
8)
at visad.java3d.RendererJ3D.doAction(RendererJ3D.java:185)
at visad.DisplayImpl.doAction(DisplayImpl.java:1008)
at visad.ActionImpl.run(ActionImpl.java:225)
at visad.util.ThreadPool$ThreadMinnow.run(ThreadPool.java:86)
--
__.__________
|lmo |homas/*
VisAD Tutorial
Copyright (C) 2000 Ugo Taddei
*/
// Import needed classes
import visad.*;
import visad.java2d.DisplayImplJ2D;
import visad.java3d.*;
import java.rmi.RemoteException;
import java.awt.*;
import javax.swing.*;
/**
VisAD Tutorial example 5_01
A simple sine curve, but this time animated.
Run program with java P5_01
*
*/
public class P5_01{
// Declare variables
// The quantities to be displayed in x- and y-axes
private RealType length, amplitude;
// The function amplitude = f(length)
// as ( length -> amplitude )
private FunctionType func_len_amp;
// Our Data values for length are represented by the set
private Set lengthSet;
// The Data class FlatField, which will hold data.
private FlatField amp_len_ff;
// The DataReference from the data to display
private DataReferenceImpl amp_len_ref;
// The 2D display, and its the maps
private DisplayImpl display;
private ScalarMap lenXMap, ampYMap, ampRGBMap;
public P5_01 (String[] args)
throws RemoteException, VisADException {
// Create the quantities
length = new RealType("length", SI.meter, null);
amplitude = new RealType("amplitude", SI.meter, null);
// Create the function
func_len_amp = new FunctionType(length,amplitude);
// Create the domain (length) set
int nSamples = 10000;
lengthSet = new Linear1DSet(length, -3.0, 3.0, nSamples);
// Values for amplitude are in an array like float[ rangeDim ][ nSamples]
float[][] ampVals = new float[1][nSamples];
// Get the lengthtime values in the domain set to help with the calculations
// "flase" means we don't get a copy from the samples
float[][] lenVals = lengthSet.getSamples( false );
// Create some amplitude values:
for(int i=0;i<nSamples;i++){
ampVals[0][i] = (float) Math.sin( (float) lenVals[0][i] );
}
// Create a FlatField
// Use FlatField(FunctionType type, Set domain_set)
amp_len_ff = new FlatField( func_len_amp, lengthSet);
// and initialize it with the first samples array
amp_len_ff.setSamples( ampVals );
// Create Display and its maps
// A 2D display
// display = new DisplayImplJ2D("display1");
display = new DisplayImplJ3D("display1", new TwoDDisplayRendererJ3D());
// Get display's graphics mode control draw scales
GraphicsModeControl dispGMC = (GraphicsModeControl)
display.getGraphicsModeControl();
dispGMC.setScaleEnable(true);
// Create the ScalarMaps
lenXMap = new ScalarMap( length, Display.XAxis );
ampYMap = new ScalarMap( amplitude, Display.YAxis );
ampRGBMap = new ScalarMap( amplitude, Display.RGB );
// Add maps to display
display.addMap( lenXMap );
display.addMap( ampYMap );
display.addMap( ampRGBMap );
// Create a data reference and set the FlatField as our data
amp_len_ref = new DataReferenceImpl("amp_len_ref");
amp_len_ref.setData( amp_len_ff );
// Add reference to display
display.addReference( amp_len_ref );
// Create application window, put display into it
JFrame jframe = new JFrame("VisAD Tutorial example 5_01");
jframe.getContentPane().add(display.getComponent());
// Set window size and make it visible
jframe.setSize(300, 300);
jframe.setVisible(true);
// index to count time step
int index=0;
// Loop forever, changing the samples array every time
while(true){
try{
// recalculate the values
for(int i=0;i<nSamples;i++){
ampVals[0][i] = (float) Math.sin( lenVals[0][i] + (float) index/50);
}
// Update samples
amp_len_ff.setSamples( ampVals );
// System.out.println("update!" + index);
index++;
Thread.sleep(10);
}
catch (InterruptedException ie){
ie.printStackTrace();
}
}
}
public static void main(String[] args)
throws RemoteException, VisADException
{
new P5_01(args);
}
} //end of Visad Tutorial Program 5_01
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