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Re: Mapping on Objekts... [message #8536 is a reply to message #8523]

Tue, 18 March 1997 00:00

davidf
Messages: 2866
Registered: September 1996

Senior Member

Christian Lenz <cnlenz@uni-paderborn.de> writes:

> A long time ago, I read something about mapping of Pictures on a cube. I
> thing it was in the IDL Basics, but i can't find it again.
>
> Now I would like to map a picture on a outside of a zylinder. Has anyone
> a tip for me?

I've never really tried this with a zylinder, but I think I could get it to
work. You do it in the C-buffer, with the Pattern and Image_Coord
keywords. (Image_Coord matches the coordinates of the image in
Pattern with the vertices specified in the positional argument
to Polyfill. For a zylinder you may have to do the rendering in narrow strips
to make the edges more or less a smooth curve. (Guess this depends on
how your zylinder is rendered on the display.)

Cheers!

David

P.S. You can find a good description of how to do these Z-buffer
tricks in my soon-to-be announced IDL Programming Guide. I am
very pleased with the new graphics sections. It may be the
best material I have ever written on IDL techniques. :-)

-----------------------------------------------------------
David Fanning, Ph.D.
Fanning Software Consulting
2642 Bradbury Court, Fort Collins, CO 80521
Phone: 970-221-0438 Fax: 970-221-4762
E-Mail: davidf@dfanning.com
Coyote's Guide to IDL Programming: http://www.dfanning.com
-----------------------------------------------------------

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[Message index]

		Re: Mapping on Objekts... By: davidf on Thu, 20 March 1997 00:00
		Re: Mapping on Objekts... By: J.D. Smith on Thu, 20 March 1997 00:00
		Re: Mapping on Objekts... By: J.D. Smith on Thu, 20 March 1997 00:00
		Re: Mapping on Objekts... By: J.D. Smith on Thu, 20 March 1997 00:00
		Re: Mapping on Objekts... By: J.D. Smith on Wed, 19 March 1997 00:00
		Re: Mapping on Objekts... By: davidf on Wed, 19 March 1997 00:00
		Re: Mapping on Objekts... By: davidf on Tue, 18 March 1997 00:00

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