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Re: 3D Puzzle [message #15530]

Fri, 21 May 1999 00:00

davidf
Messages: 2866
Registered: September 1996

Senior Member

Kelly Dean (krdean@lamar.colostate.edu) writes:

> I have an idea to create a 3D puzzle with our global data set. I have
> selected the map projection and drew a triangle around the area I would
> like to keep. These triangles would be pieced together to form a 3D
> globe.
>
> But - how would I black out the area around the outside of the
> triangle?

Use PolyfillV to find the image pixels inside the
triangle. All the pixels that are not inside are
outside (probably want to make some kind of 0/1
mask, I guess). Set the outside pixels to 0.

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/
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