Re: VisAD library update

• To: Wang Lizhi <wlz@xxxxxxxxx>
• Subject: Re: VisAD library update
• From: Tom Rink <rink@xxxxxxxxxxxxx>
• Date: Wed, 31 Jan 2007 07:05:29 -0600

Hi Lizhi,

We'll look into this.

Tom

Wang Lizhi wrote:

Hi, Don Murray,

The following two JPG file is the streamline with the previous 
version(stream-1.jpg) and the new version(stream-2.jpg).

    FlowControl cFlow = (FlowControl)streamUMap.getControl();
    cFlow.setStreamlineDensity( 1.0 );
    cFlow.setStepFactor( 0.5 );
The stream-1.jpg is what I want, but I have no idea about the stream-2.jpg

When I run the following code, there is something wrong. I paste the code and 
errors:

/////############### code begin ################//

import java.util.*;

import java.awt.BorderLayout;
import java.awt.Container;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.event.*;

import javax.swing.*;
import javax.swing.event.*;
import visad.*;
import visad.util.*;
import visad.java2d.DisplayImplJ2D;
import visad.java3d.DisplayImplJ3D;
import visad.java3d.DefaultRendererJ3D;
import java.rmi.RemoteException;

public class GEam3DView extends JTabbedPane
{
  public GEam3DView() throws RemoteException, VisADException
  {
     super();

     setupComponent();
  }

  private void setupComponent()
  {
     JPanel p = new JPanel();
     p.setLayout( new BorderLayout() );
     add( "3D", p );

     try
     {
        DisplayImpl display = new DisplayImplJ3D( "3D" );
        p.add( display.getComponent(), BorderLayout.CENTER );

        RealType x = RealType.getRealType( "X" );
        RealType y = RealType.getRealType( "Y" );
        RealType z = RealType.getRealType( "Z" );
        RealType pixel = RealType.getRealType( "pixel" );

        ScalarMap xMap3D = new ScalarMap( x, Display.XAxis );
        ScalarMap yMap3D = new ScalarMap( y, Display.YAxis );
        ScalarMap zMap3D = new ScalarMap( z, Display.ZAxis );
        ScalarMap pixMap3D = new ScalarMap( pixel, Display.RGB );
        ScalarMap areaMap3D = new ScalarMap( pixel, Display.IsoContour );

        RealTupleType xyz_domain = new RealTupleType( z, y, x );

        visad.Set xyz_domain_set = new Linear3DSet( xyz_domain,
               -1000, -800, 3, 0, 1000, 20, 0, 1500, 30 );

        FunctionType xyz_func_pixel = new FunctionType(
               xyz_domain, pixel );

        FlatField xyz_pixel_ff = new FlatField( xyz_func_pixel, xyz_domain_set 
);
//         xyz_pixel_ff.setSamples(
        DataReferenceImpl xyz_pixel_ref
               new DataReferenceImpl( "xyz_pixel" );
        display.addReference( xyz_pixel_ref );
        xyz_pixel_ref.setData( xyz_pixel_ff );

        display.addMap( xMap3D );
        display.addMap( yMap3D );
        display.addMap( zMap3D );
        display.addMap( pixMap3D );
        display.addMap( areaMap3D );
     }
     catch( RemoteException re ) { }
     catch( VisADException v5de ) { }
  }

  public static void main( String[] argv )
  {
     try
     {
        JFrame f = new JFrame();
        f.add( new GEam3DView() );
        f.setSize( 400, 400 );
        f.setVisible( true );
     }
     catch( java.rmi.RemoteException re ) { }
     catch( visad.VisADException ve ) { }
  }
}
/////// end of the code //////////////////////

errors as following:

java.lang.ArrayIndexOutOfBoundsException: 0 >= 0
at java.util.Vector.elementAt(Vector.java:427)
at 
visad.java3d.ShadowFunctionOrSetTypeJ3D.doTransform(ShadowFunctionOrSetTypeJ3D.java:124)
at visad.java3d.DefaultRendererJ3D.doTransform(DefaultRendererJ3D.java:133)
at visad.java3d.RendererJ3D.doAction(RendererJ3D.java:181)
at visad.DisplayImpl.doAction(DisplayImpl.java:1709)
at visad.ActionImpl.run(ActionImpl.java:364)
at visad.util.ThreadPool$ThreadMinnow.run(ThreadPool.java:95)


thanks

lizhi

----- Original Message ----- From: "Don Murray" <dmurray@xxxxxxxxxxxxxxxx>

To: "Wang Lizhi" <wlz@xxxxxxxxx>
Cc: "Tom Whittaker" <tomw@xxxxxxxxxxxxx>; <visad@xxxxxxxxxxxxxxxx>
Sent: Tuesday, January 30, 2007 10:34 PM
Subject: Re: VisAD library update

Hi-

Wang Lizhi wrote:

 When I use the updated version, my application do not display correctly

 Firstly, the Stream is very strange when I use
       streamUMap = new ScalarMap( ux, Display.Flow1X );
       streamVMap = new ScalarMap( vy, Display.Flow1Y );

The streamline code was revamped to be more "realistic" so it
will look different than the previous version.  When you say
"strange" does that mean different or inaccurate?  If the latter,
can you provide a screen shot with the old visad.jar and the new one?

 Secondly,  some error message is displayed as following:
    java.lang.ArrayIndexOutOfBoundsException: 0 >= 0
        at java.util.Vector.elementAt( Vector.java:427 )
        at visad.java3d.ShadowFunctionOrSetTypeJ3D.doTransform( 
ShadowFunctionOrSetTypeJ3D.java:124 )
        at visad.java3d.DefaultRendererJ3D.doTransform( 
defaultRendererJ3D.java:133 )
        at visad.java3d.RednererJ3D.doAction( RendererJ3D.java:181 )
        at visad.DisplayImpl.doAction( DisplayImpl.java:1709 )
        at visad.ActionImpl.run( ActionImpl.java:364 )
        at visad.util.ThreadPool$ThreadMinnow.run( ThreadPool.java:95 )
   Can I get some idea where I can deal with the error?

Can you provide some code which produces this problem?  What is
the data type of the field?

Don Murray
*************************************************************
Don Murray                               UCAR Unidata Program
dmurray@xxxxxxxxxxxxxxxx                        P.O. Box 3000
(303) 497-8628                              Boulder, CO 80307
http://www.unidata.ucar.edu/staff/donm
*************************************************************


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• References:
  • VisAD library update
    • From: Tom Whittaker
  • Re: VisAD library update
    • From: Wang Lizhi
  • Re: VisAD library update
    • From: Don Murray
  • Re: VisAD library update
    • From: Wang Lizhi