Due to the current gap in continued funding from the U.S. National Science Foundation (NSF), the NSF Unidata Program Center has temporarily paused most operations. See NSF Unidata Pause in Most Operations for details.

Re: Triangulate 3D data points

Hi Antimbé,

> I would like to know if  visad has a program which can triangulate a 3D
> data, and
> vizualized the result triangulation.

You can triangulate 3-D data by constructing an Irregular3DSet
(If it is a tetrahedralization), or an Irregular2DSet (if it is
a triangulation embedded in 3-D), which will implicitly invoke
one of the system's Delaunay algorithms (it includes both
Watson's and Clarkson's).

If it is a embedded triangulation, you can visualize with a
program similar to visad/examples/Test62.java.  If it is a
tetrahedralization, you'll need to use the topology from the
Delaunay class to construct a VisADTriangleArray that you
visualize with a RealType mapped to Display.Shape.

Note that VisAD is a library so requires some programming.
The classes I mentioned are described in the Developer's
Guide and used in various examples.

Cheers,
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


  • 2000 messages navigation, sorted by:
    1. Thread
    2. Subject
    3. Author
    4. Date
    5. ↑ Table Of Contents
  • Search the visad archives: