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IDLgrPolygon image map scaling [message #42754]

Fri, 25 February 2005 11:00

b_gom
Messages: 105
Registered: April 2003

Senior Member

I'm having a bit of trouble with texture maps on a simple rectangular
IDLgrPolygon. I am trying to place a bitmap inside the axes of a custom
plot object. I create an IDLgrPolygon with the proper dimensions, and
add it to the model with my plot. I'm using a texture map so that I can
scale the plot dynamically, and so that it behaves itself in terms of
plotting order. The trouble is that IDL doesn't scale the image
uniformly. See:
http://people.uleth.ca/~brad.gom/texture_map.png
The pattern should be a checkerboard of alternating pixels. Is there
something I am missing? This effect occurs no matter what image
dimensions I use, dimensions of the polygon in data units, or
interpolation.

Brad

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[Message index]

		IDLgrPolygon image map scaling By: b_gom on Fri, 25 February 2005 11:00
		Re: IDLgrPolygon image map scaling By: b_gom on Mon, 28 February 2005 14:55
		Re: IDLgrPolygon image map scaling By: Karl Schultz on Mon, 28 February 2005 09:50

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