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Map_set limits [message #10400]

Tue, 25 November 1997 00:00

Erard
Messages: 11
Registered: November 1997

Junior Member

Hello.

I was trying to superimpose satellite images to a map in IDL 4, and had a
problem:

I have to set the map's dimensions to the image's to get a good match,
using the keyword "position" in map_set.
After several tries I found out that the map limits are enlarged by 2% in
both directions (long/lat), while the dimensions are unchanged. The result
is that I get a map of a larger area in the dimensions of my image.

So far, I have solved this problem by either increasing the map's
dimensions or by reducing the limits in long/lat by 2% before calling
Map_set, depending on the type of image I'm processing and the output.

I'm now in the process of writing of different version of Map_set adapted
to planetary mapping, and I want to get rid of this kind of problems. Does
anybody know why the position parameters are modified in map_set, and
whether I can safely spare this modification?

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[Message index]

		Map_set limits By: Erard on Tue, 25 November 1997 00:00
		Re: Map_set limits By: Stephane Erard on Tue, 02 December 1997 00:00
		Re: Map_set limits By: nick on Mon, 08 December 1997 00:00
		Re: Map_set limits By: davidf on Mon, 01 December 1997 00:00
		Re: Map_set limits By: Martin Schultz on Mon, 01 December 1997 00:00

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