Re: setPointSize makes points disappear

[Ed DeRouin <ed@xxxxxxxxxxx>]

Thanks, Bill.  I am using the OpenGL version of Java3D 1.2.1_03 on 
WindowsMe OS.  Write once, run almost anywhere, eh?
Ed


> Hi Ed,
>
> > I am displaying x,y,z points in 3D, similarly to the 2D example P2_04 in
> > the tutorial.  I can see the tiny points on the display, but when I add the
> > line
> >
> > dispGMC.setPointSize(20.0f);
> >
> > the points completely disappear.
> >
> > I compiled and ran example P4_14, which uses this line, and it works
> > fine.  A little exploration revealed that if I remove the line much later
> > in the program
> >
> > dRenderer.setBoxOn( false );
> >
> > the points disappear in this progam as well.
>
> I tried this in P4_14 and the points did not disappear. So I
> think this is a Java3D problem. Are you using the OpenGL or
> DirectX version of Java3D? I think DirectX is not so good with
> point and line sizes.
>
> Furthermore, the effect of setBoxOn() is to make a call to
> setWhichChild() on a Switch node in the Java3D scene graph.
> Point size goes into the PointAttributes of every Appearance
> in the scene graph. These two things should be independent
> in any correct Java3D implementation.
>
> Good luck,
> Bill
> ----------------------------------------------------------
> Bill Hibbard, SSEC, 1225 W. Dayton St., Madison, WI  53706
> hibbard@xxxxxxxxxxxxxxxxx  608-263-4427  fax: 608-263-6738
> http://www.ssec.wisc.edu/~billh/vis.html