| Re: Contouring zonally-symmetric fields with map_set [message #4315] |
Mon, 22 May 1995 00:00 |
rlefevre
Messages: 4
Registered: April 1994
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Junior Member |
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In article <3pq5bt$smd@kwuz.nerc-keyworth.ac.uk> wmc@unixa.nerc-keyworth.ac.uk (William Connolley) writes:
> From: wmc@unixa.nerc-keyworth.ac.uk (William Connolley)
> Subject: Contouring zonally-symmetric fields with map_set
> Date: 22 May 1995 13:59:25 GMT
> Hi all. I use map_set (specifically with polar stereos around the south pole,
> but I think that's irrelevent) and then contour. All works fine unless the field
> I am contouring is zonally symmetric (or a portion of it is). Then, IDL decides
> "ok, all the contours are at the same latitude, no need to draw circles, I'll draw
> straight lines". On a polar stereo plot, this then produces rubbish. If the field
> is entirely symmetric, all you get are dots at 0 E!!!
> I have a solution: add a small amount of random noise to the field. However, its a
> kluge (and therefore in the best traditions of programming... ;-)
> Any better solutions?
> - William Connolley wmc@bas.ac.uk
I had the same trouble with IDL 3.6.1. Get the new map_set from their server.
It worked for me.
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Randy J. Lefevre
Return e-mail to rlefevre@tamu.edu
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