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Re: regridding questions... [message #6137] Fri, 19 April 1996 00:00
safier is currently offline  safier
Messages: 12
Registered: March 1995
Junior Member
>>>> > "Phil" == Phil Williams <williams@irc.chmcc.org> writes:

Phil> I have some data that is sampled on a close-to-rectangular
Phil> grid that looks something like the following:

Phil> ________ / / \ \________ \ \ / ________/ / /

Phil> Are you following me? I have the x and y points defined in
Phil> an MxN array. The data is an MxN complex array. How would
Phil> I go about using, or can I even, some IDL function to
Phil> accomplish getting the data points on a regular rectangular
Phil> grid?

Phil> I have tried to use triangulate and trigrid with no success.
Phil> krig2d can't allocate enough space for the new array.

Phil> I've come to a dead end and any help would be greatly
Phil> appreciated!

Phil> TIA,

How about using bicubic spline interpolation to inetrpolate the values
on a nice rectangular grid of your choice?

Cheers,

Pedro
--
Pedro N. Safier | "God offers to everyone his
Department of Astronomy | choice between truth and repose.
U. of Maryland at College Park | Take which you please--you can
phone: 301-405-1531; fax: 301-314-9067 | never have both." R. W. Emerson
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