| Re: 3-d viewing [message #19490 is a reply to message #19436] |
Wed, 22 March 2000 00:00   |
davidf
Messages: 2866
Registered: September 1996
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Senior Member |
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I wrote yesterday:
> I'd start with a program like Simple_Surface to help you set up
> the Viewport coordinate system, add a trackball, etc. You will
> want to substitute a Polygon object for the Surface object in
> that program, but most of the infrastructure is already
> built for you, and you can certainly see from the surface
> object how to scale your polygon object into the view.
Since this took just a couple of minutes to do, I decided to
make it available to everyone. The program is named
Poly_Surface. You call it with the vertex and polygon
lists that you can obtain from a program like Shade_Volume:
IDL> Poly_Surface, vertices, polygons
If you call the program with no parameters I'll build you
a little spherical polygon object. :-)
IDL> Poly_Surface
You can find the program here:
ftp://ftp.dfanning.com/pub/dfanning/outgoing/idl_course/poly _surface.pro
Be aware that this program is NOT extensively tested.
I only spent about 5 minutes on it. :-)
Cheers,
David
--
David Fanning, Ph.D.
Fanning Software Consulting
Phone: 970-221-0438 E-Mail: davidf@dfanning.com
Coyote's Guide to IDL Programming: http://www.dfanning.com/
Toll-Free IDL Book Orders: 1-888-461-0155
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