| Re: contour in polar coordinates [message #18138] |
Fri, 03 December 1999 00:00 |
davidf
Messages: 2866
Registered: September 1996
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Senior Member |
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Dmitri Chugunin (dimokch@mx.iki.rssi.ru) writes:
> I have a problem. Does anyone know how to plot contour in polar
> coordinates? Additional trouble is I have a data only in a belt, but not
> in hole circle.
>
> Thank you in advance,
> Dimok.
The most straightforward way, I think, is to convert your
polar coordinates to XY coordinates and grid, if necessary,
before contouring.
If you mean you would like your contour plot in a circular
type plot, then I have had some luck converting coordinates
to latitude/longitude coordinates and drawing the contours
on a circular map projection.
Cheers,
David
--
David Fanning, Ph.D.
Fanning Software Consulting
Phone: 970-221-0438 E-Mail: davidf@dfanning.com
Coyote's Guide to IDL Programming: http://www.dfanning.com/
Toll-Free IDL Book Orders: 1-888-461-0155
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