Looking for a 3D "triangulate" equivalent [message #14656] |
Mon, 15 March 1999 00:00  |
burkhard prause[1]
Messages: 1 Registered: March 1999
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Junior Member |
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Hi everyone.
I have in the past used Triangulate to create adjacency lists for
irregular grids (centers of mass) in 2D. Now I have three dimensional
arrays, for which I need to do the same. There are many (some good, some
ugly) c/c++ routines out there that would perform delauney triangulation
on simplical vertices (finding minimal surface convex hulls), but unless
some have options that I don't know about, none that I know can give me
adjacency lists ("neighbors") for each point.
Does anyone know of such a routine, written in IDL (preferably, for ease
of use), or c for that matter? Where could I look for mathematical IDL
routines (in the future). I stop by the Johhs Hopkins library and David
Fannings (Hi David!) on occasion. What else is out there?
Burkhard
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Re: Looking for a 3D "triangulate" equivalent [message #14768 is a reply to message #14656] |
Wed, 24 March 1999 00:00  |
David Foster
Messages: 341 Registered: January 1996
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Senior Member |
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burkhard prause wrote:
>
> Hi everyone.
>
> I have in the past used Triangulate to create adjacency lists for
> irregular grids (centers of mass) in 2D. Now I have three dimensional
> arrays, for which I need to do the same. There are many (some good, some
> ugly) c/c++ routines out there that would perform delauney triangulation
> on simplical vertices (finding minimal surface convex hulls), but unless
> some have options that I don't know about, none that I know can give me
> adjacency lists ("neighbors") for each point.
>
> Does anyone know of such a routine, written in IDL (preferably, for ease
> of use), or c for that matter? Where could I look for mathematical IDL
> routines (in the future). I stop by the Johhs Hopkins library and David
> Fannings (Hi David!) on occasion. What else is out there?
>
> Burkhard
Burkhard -
Everyone looking for IDL routines should check out Ray Sterner's
libraries first:
http://fermi.jhuapl.edu/s1r/idl/idl.html
I have a pretty long list of IDL resources on the net...I'll email
them to you offline.
Dave
--
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David S. Foster Univ. of California, San Diego
Programmer/Analyst Brain Image Analysis Laboratory
foster@bial1.ucsd.edu Department of Psychiatry
(619) 622-5892 8950 Via La Jolla Drive, Suite 2240
La Jolla, CA 92037
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