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Re: Object Graphics Roting Sphere [message #37965 is a reply to message #37964]

Wed, 04 February 2004 17:59

David Fanning
Messages: 11724
Registered: August 2001

Senior Member

Jamie writes:

> Does anyone have an example of how to make a rotating sphere using object
> graphics? An example that shows a rotating planet with a topographic map
> would be ideal ;)

Well, here is something really simple and easy. Download
SIMPLE_SURFACE:

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

Find these two lines on line 434:

thisSurface = OBJ_NEW('IDLgrSurface', data, x, y, $
Color=[255,255,0], _Extra=extra, Hidden_Lines=hidden_lines)

Replace the two lines above with this one:

thisSurface = OBJ_NEW('ORB',Color=[255,255,0])

Walla! Behold, a rotating sphere!!

I'll leave the topographic map part to you. :-)

Cheers,

David
--
David W. Fanning, Ph.D.
Fanning Software Consulting, Inc.
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: Object Graphics Roting Sphere By: David Fanning on Thu, 05 February 2004 09:55
		Re: Object Graphics Roting Sphere By: Rick Towler on Thu, 05 February 2004 09:16
		Re: Object Graphics Roting Sphere By: David Fanning on Wed, 04 February 2004 18:05
		Re: Object Graphics Roting Sphere By: David Fanning on Wed, 04 February 2004 17:59

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