Re: Volume rendering of Irregular3DSet

• To: gunnar.sletta@xxxxxxxxxxx
• Subject: Re: Volume rendering of Irregular3DSet
• From: Bill Hibbard <hibbard@xxxxxxxxxxxxxxxxx>
• Date: Mon, 19 Mar 2001 04:56:04 -0600

Hi Gunnar,

> I've constructed a Irregular 3D set and I want to view it, and I used the
> same approach as for Linear3DSet, where I simply enabled textures, and it
> produced the slice planes automatically. I couldn't make this work for
> irregular sets.
> 
> Do I have extract each triangle/tetrahedra and make sets out of them as
> done in Delaunay.main or is there some simpler way of doing this?

Actually, VisAD volume rendering is more complex than the
Delaunay.main() logic. Volume rendering from Linear3DSets
creates six different sets of transparent faces and switches
between them as the volume rotates. There is no good way to
do this with Irregular3DSets or even Gridded3DSets.

Your best bet is to resample your Field to a Linear3DSet
that covers the same volume as your Irregular3DSet.

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

• References:
  • Volume rendering of Irregular3DSet
    • From: gunnar . sletta