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Re: texture_coord [message #27685 is a reply to message #27683]

Sun, 04 November 2001 08:53

David Fanning
Messages: 11724
Registered: August 2001

Senior Member

Karl Schultz (kschultz@researchsystems.com) writes:

> I sent David an updated program that fixes the
> problem by fully specifying the texture coordinates.
> It wasn't so bad.

Indeed. I made a couple of modifications to the
program to make it more general. And I found
that a one-pixel border (instead of two) around the
image was enough to be able to specify a surface color.
(I worry whether this might be OpenGL-implementation
specific, but it definitely works on my machine
in every instance I've tried it.)

You can find the final program here:

http://www.dfanning.com/programs/texture_surface.pro

Try this:

IDL> Texture_Surface

Or, to position the image on the surface and color
the rest of the surface a light gray color:

IDL> Texture_Surface, Position=[10, 5, 35, 30], $
BorderColor=[185, 185, 185]

An article that explains the details of this can be
found here:

http://www.dfanning.com/ographics_tips/imgtex.html

Cheers,

David
--
David W. Fanning, Ph.D.
Fanning Software Consulting
Phone: 970-221-0438, E-mail: david@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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[Message index]

		Re: texture_coord By: Mark Hadfield on Sun, 04 November 2001 13:23
		Re: texture_coord By: David Fanning on Sun, 04 November 2001 08:53
		Re: texture_coord By: Karl Schultz on Fri, 02 November 2001 09:49
		Re: texture_coord By: David Fanning on Fri, 02 November 2001 09:30
		Re: texture_coord By: Pavel A. Romashkin on Fri, 02 November 2001 09:16
		Re: texture_coord By: David Fanning on Fri, 02 November 2001 09:04
		Re: texture_coord By: Karl Schultz on Fri, 02 November 2001 08:46
		Re: texture_coord By: Karl Schultz on Fri, 02 November 2001 08:39
		Re: texture_coord By: David Fanning on Fri, 02 November 2001 07:09
		Re: texture_coord By: Mark Hadfield on Thu, 01 November 2001 18:48
		Re: texture_coord By: David Fanning on Thu, 01 November 2001 17:31
		Re: texture_coord By: Mark Hadfield on Thu, 01 November 2001 17:07
		Re: texture_coord By: David Fanning on Thu, 01 November 2001 16:34
		Re: texture_coord By: Harald von der Osten-[1] on Thu, 01 November 2001 10:48
		Re: texture_coord By: David Fanning on Thu, 01 November 2001 09:57
		Re: texture_coord By: David Fanning on Thu, 01 November 2001 09:53
		Re: texture_coord By: Karl Schultz on Thu, 01 November 2001 08:11
		Re: texture_coord By: David Fanning on Thu, 01 November 2001 07:18

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