hey tom,
thanks for the quick response.
i just installed a new driver for my video card (which hopefully
supports openGL, any idea how i can test if it supports openGL or not?).
after installing this, i am going to install the openGL java3d and then
try my program again.
i will let you know how it goes.
thanks,
-Mike
On Fri, 2002-07-26 at 15:08, Tom Whittaker wrote:
> Mike:
>
> I've only looked at the Java3D for DirectX, since I use OpenGL on
> Windows.
>
> If no one else knows the answer and you want to do a quick check of the
> OpenGL version, you can get the auto-installer (which have Java, Java3D
> (OpenGL), visad.jar and jython.jar) and install that & test with it
> (there are a couple of batch files in the install directory that'll
> illustrate the start-up).
>
> http://www.ssec.wisc.edu/~tomw/visadtutor/jyvis.exe
>
> You can use the 'normal' Windows uninstall to get rid of it when you're
> done testing.
>
> tom
>
> On 26 Jul 2002, Mike Charters wrote:
>
> > i am having trouble getting my visAD program to work with windows.
> >
> > it runs and displays fine with linux, but when i copy it over to a
> > windows machine and run it i get this error:
> >
> > <snip>
> >
> > ************************************************************************
> > *** ERROR: Canvas3D constructed with a null GraphicsConfiguration
> > *** This will cause a NullPointerException in a subsequent release
> > ************************************************************************
> > java.lang.NullPointerException: Canvas3D: null GraphicsConfiguration
> > at javax.media.j3d.Canvas3D.<init>(Canvas3D.java:1093)
> > at javax.media.j3d.Canvas3D.<init>(Canvas3D.java:1058)
> > at visad.java3d.VisADCanvasJ3D.<init>(VisADCanvasJ3D.java:86)
> > at graph3d.graph3d$MyVisADCanvasJ3D.<init>(graph3d.java:637)
> > at graph3d.graph3d.display(graph3d.java:220)
> > at LS1a_020725.GUIModel.showLandscape(Unknown Source)
> > at LS1a_020725.GUIModel.step(Unknown Source)
> > at BAB_SYNTH_1.execute(Unknown Source)
> > at
> > uchicago.src.sim.engine.ActionGroup.execute(ActionGroup.java:154)
> > at
> > uchicago.src.sim.engine.ActionGroup.execute(ActionGroup.java:154)
> > at uchicago.src.sim.engine.Schedule.execute(Schedule.java:372)
> >
> > </snip>
> >
> > this error comes when I create a MyVisADCanvasJ3D (which extends
> > VisADCanvasJ3D). When I create I simply do:
> >
> > <snip>
> >
> > DisplayRendererJ3D dr = new DefaultDisplayRendererJ3D();
> > VisADCanvasJ3D mycanvas = new MyVisADCanvasJ3D(dr);
> >
> > </snip>
> >
> > and in the MyVisADCanvasJ3D constructor I do:
> >
> > <snip>
> >
> > public MyVisADCanvasJ3D(DisplayRendererJ3D dr)
> > {
> > super(dr);
> > }
> >
> > </snip>
> >
> > I looked through the VisAD code and it looks like my default
> > GraphicsConfiguration is not being created. The default graphics
> > configuration is generated in VisADCanvasJ3D if you do not specify one
> > in the constructor. The code to do this is:
> >
> > <snip>
> >
> > private static GraphicsConfiguration makeConfig() {
> > GraphicsEnvironment e
> > GraphicsEnvironment.getLocalGraphicsEnvironment();
> > GraphicsDevice d = e.getDefaultScreenDevice();
> > // GraphicsConfiguration c = d.getDefaultConfiguration();
> > GraphicsConfigTemplate3D gct3d = new GraphicsConfigTemplate3D();
> > GraphicsConfiguration c
> > gct3d.getBestConfiguration(d.getConfigurations());
> > return c;
> > }
> >
> > </snip>
> >
> > so I assume I probably don't have something set up correctly ... so this
> > code is returning a null GraphicsConfiguration because it cannot detect
> > the GraphicsConfiguration?
> >
> > I ran this "direct x diagnostic" program and i know direct3d 8.0 works
> > if that means anything.
> >
> > Anyone have any ideas what is wrong here?
> >
> > Thanks,
> > -Mike
> >
> >
>
> --
> Tom Whittaker
> University of Wisconsin-Madison
> Space Science and Engineering Center
> Cooperative Institute for Meteorological Satellite Studies
> Telephone/VoiceMail: 608.262.2759
