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Re: Anisotropic smoothing operations [message #24833 is a reply to message #24831]

Thu, 26 April 2001 11:41

Craig Markwardt
Messages: 1869
Registered: November 1996

Senior Member

Ben Tupper <pemaquidriver@tidewater.net> writes:
...
>
> That's a good idea. I'm not sure how to implement it in my situation.
>
> I am using a routine for building a 2d grid from scattered data.
> The grid is initialized with a user defined MISSING value (in my
> case, NAN.) The data is sprinkled over the grid then smoothed with
> the moving boxcar. This sprinkle/smooth sequence is repeated a
> number of times. Using SMOOTH, the NANs are replaced by (real)
> smoothed values as the influence of the scattered data values grows
> outward. It is possible (likely) that there will be NANs remaining
> on the grid after the sprinkle/smooth iterations have been
> completed. These areas will be in the regions of the grid where the
> original data values are sparse. That is the effect I would like to
> achieve.

Question by an idiot: couldn't you use KRIG2D/TRIANGULATE/TRIGRID for
this? They're designed to take irregular points to a regular grid and
filling in the gaps.

Craig

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Craig B. Markwardt, Ph.D. EMAIL: craigmnet@cow.physics.wisc.edu
Astrophysics, IDL, Finance, Derivatives | Remove "net" for better response
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[Message index]

		Re: Anisotropic smoothing operations By: Ben Tupper on Thu, 26 April 2001 15:31
		Re: Anisotropic smoothing operations By: Craig Markwardt on Thu, 26 April 2001 11:41
		Re: Anisotropic smoothing operations By: Ben Tupper on Thu, 26 April 2001 10:15
		Re: Anisotropic smoothing operations By: Jaco van Gorkom on Thu, 26 April 2001 03:25

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