| Re: filled closed curve [message #25541 is a reply to message #25538] |
Thu, 28 June 2001 07:29  |
btt
Messages: 345
Registered: December 2000
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Senior Member |
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Hi,
To shade the polygon on the current display (assuming you are using
direct graphics), try the POLYFILL procedure. You should set up a
coordinate system before calling POLYFILL unless you want to draw
directly in device (pixel) coordinate space.
Something like:
PLOT, X, Y, /NoData, /YNoZero, ...
POLYFILL, X, Y, Color = myColor, /Data
Ben
Jochen Weller wrote:
>
> Hello
>
> I am relatively new to IDL and have the following question.
>
> I have a data file which contains the x and y coordinate of a closed
> curve. I would like to shade the area inside the curve with a different
> color.
> Does anybody know how to do this ?
>
> Cheers
> Jochen
>
> ************************************************************ ******************
> * Jochen Weller Tel. +44 1223 337941 *
> * D.A.M.T.P. Fax: +44 1223 765900 *
> * Centre for Mathematical Sciences *
> * University of Cambridge www: www.damtp.cam.ac.uk/user/jw249/ *
> * Wilberforce Road e-mail: J.Weller@damtp.cam.ac.uk *
> * Cambridge, CB3 0WA *
> * U.K. *
> ************************************************************ ******************
--
Ben Tupper
Bigelow Laboratory for Ocean Sciences
180 McKown Point Rd.
W. Boothbay Harbor, ME 04575
btupper@bigelow.org
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