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Re: map projection question [message #31392 is a reply to message #31391]

Tue, 09 July 2002 11:48

Liam E. Gumley
Messages: 378
Registered: January 2000

Senior Member

"J. Li" wrote:
> I have a small strip of satellite image, centered around the
> International Date Line +/-5, i.e the longitudes range from -175 to 175.
>
> How do I limit the MAP_SET to the smaller portion of the Earth, say -175
> LON -> dateline -> +175 LON instead of the larger -175 LON -> Prime
> Meridian -> +175 LON? I cannot find a keyword that will let me to choose
> which portion to map. LIMIT keyword alone seems to be insufficient.

How about something like this?

window, /free, xsize=200, ysize=800
map_set, 0, -180, scale=50e6, /cont, /grid

Cheers,
Liam.
Practical IDL Programming
http://www.gumley.com/

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[Message index]

		Re: map projection question By: Mark Hadfield on Tue, 09 July 2002 15:08
		Re: map projection question By: Robert Stockwell on Tue, 09 July 2002 14:54
		Re: map projection question By: James Kuyper on Tue, 09 July 2002 12:35
		Re: map projection question By: Liam E. Gumley on Tue, 09 July 2002 11:48

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