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Re: problem with TRIANGULATION option in CONTOUR [message #73147 is a reply to message #73053]

Mon, 25 October 2010 15:17

David Fanning
Messages: 11724
Registered: August 2001

Senior Member

Ardhuin writes:

> Well, this is exactly what I do not want to do: I want to use my
> triangulation because it contains the information on the grid
> connectivity (islands are "holes" in the grid where the contouring
> should not do any filling).
>
> I have put the basic dataset at this ftp address:
> ftp://ftp.ifremer.fr/ifremer/cersat/products/gridded/wavewat ch3/TOOLS/IDL/BUG/
> with some illustrative plots. The standard contour fills everything,
> including land. If I do a TRIGRID before a TV then I get want I want:
> land and Islands are blank... but I'd like to do this with contour to
> use the native data resolution...

It seemed to me you wanted to put a contour plot on top
of an image, so that's what I've shown you how to do.
You will need Coyote Library programs to run the code.

http://www.dfanning.com/programs/coyoteprograms.zip

You can find the program I wrote, and a PNG file of what
the output looks like here:

http://www.dfanning.com/misc/contour_on_image.zip

Cheers,

David

--
David Fanning, Ph.D.
Fanning Software Consulting, Inc.
Coyote's Guide to IDL Programming: http://www.dfanning.com/
Sepore ma de ni thui. ("Perhaps thou speakest truth.")

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[Message index]

		problem with TRIANGULATION option in CONTOUR By: Ardhuin on Sat, 23 October 2010 05:35
		Re: problem with TRIANGULATION option in CONTOUR By: David Fanning on Tue, 26 October 2010 06:52
		Re: problem with TRIANGULATION option in CONTOUR By: Ardhuin on Tue, 26 October 2010 06:34
		Re: problem with TRIANGULATION option in CONTOUR By: David Fanning on Tue, 26 October 2010 05:18
		Re: problem with TRIANGULATION option in CONTOUR By: ben.bighair on Tue, 26 October 2010 04:31
		Re: problem with TRIANGULATION option in CONTOUR By: Ardhuin on Mon, 25 October 2010 23:04
		Re: problem with TRIANGULATION option in CONTOUR By: David Fanning on Mon, 25 October 2010 17:54
		Re: problem with TRIANGULATION option in CONTOUR By: ben.bighair on Mon, 25 October 2010 17:29
		Re: problem with TRIANGULATION option in CONTOUR By: David Fanning on Mon, 25 October 2010 15:17

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