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Re: contouring into continents only [message #31803 is a reply to message #31797]

Mon, 19 August 2002 13:33

air_jlin
Messages: 22
Registered: July 2001

Junior Member

hi David,

i sometimes have to do the opposite (contours only over ocean areas)
and find that setting the land points in the grid to !VALUES.F_NAN
seems to do the trick...IDL counts those points as "missing data" and
just doesn't draw any contours over those areas.

best,
-Johnny

"David" <losiento@peromefrienaspam.com> wrote in message
news:<ajq3k4$2q9$1@crispin.sim.ucm.es>...
> Hi all.
>
> I'm desperately trying to draw contour lines inside continental boundaries
> only (I have irregularly gridded precipitation data). I have test several
> 'brute force' methods (as creating a mask of 1 over land and 0 over seas)
> but none seems to work properly.
>
> Is there any easy (as any esoteric keyword unknown to me) method to do that?
>
> thank you!
> David

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[Message index]

		Re: contouring into continents only By: R.Bauer on Tue, 20 August 2002 07:39
		Re: contouring into continents only By: David on Tue, 20 August 2002 03:07
		Re: contouring into continents only By: air_jlin on Mon, 19 August 2002 13:33
		Re: contouring into continents only By: David Fanning on Mon, 19 August 2002 09:09
		Re: contouring into continents only By: David Fanning on Mon, 19 August 2002 07:34
		Re: contouring into continents only By: David Fanning on Mon, 19 August 2002 07:27

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