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Re: IDL contour [message #692 is a reply to message #691]

Tue, 12 January 1993 08:52

pat
Messages: 25
Registered: June 1992

Junior Member

Mirko Vukovic (at913@cleveland.Freenet.Edu) wrote:

> In a previous article, apwang@waikato.ac.nz () says:
>> Does anyone know how to draw a contour graph in polar
>> coordinate system without changing to cartician coordinate
>> by using IDL? Any help will be appreciated very much!
> I second the request for polar grid contour/surface routine

you can't do it directly. what i do is interpolate
my polar grid to a cartesian grid and then contour it. i use
trigrid and triangulate to do the interpolation.
the problem i still have is that polycontour bites.
if anyone has a color contouring routine which knows how
to handle unclosed contours, please post it. if i'm
feeling inspired one of these days, i translate the NCAR
CONPACK routines into IDL. they're ugly but they do
the job.

pat

--
"I have a cunning plan." -- Baldric
patrick m. ryan
nasa / goddard space flight center / oceans and ice branch / hughes stx
pat@jaameri.gsfc.nasa.gov / zmpmr@charney.gsfc.nasa.gov

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[Message index]

		Re: IDL contour By: turet on Tue, 12 January 1993 13:02
		Re: IDL contour By: peba1231 on Tue, 12 January 1993 09:54
		Re: IDL contour By: pat on Tue, 12 January 1993 08:52
		Re: IDL contour By: at913 on Tue, 12 January 1993 06:39

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