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Re: Octaviz help, general question about plotting scattered data
From: |
Michael Creel |
Subject: |
Re: Octaviz help, general question about plotting scattered data |
Date: |
Tue, 17 Jul 2007 09:15:52 +0200 |
User-agent: |
Thunderbird 1.5.0.12 (X11/20070604) |
Jordi Gutiérrez Hermoso wrote:
<snip> someone point me in the right direction?
>
> My second question is no doubt more complex. Suppose I have scattered
> data points on some unstructured grid on the plane, and I have a
> function value at each point. That is, the only data I have is a bunch
> of (x,y,z) triplets that can be given to me in any order. They should
> represent samplings from a smooth function, hopefully a solution to a
> shallow water equation without shocks, once I get my code working. How
> can I form a quasi-smooth surface which interpolates with small
> polygons the data points that I give? I realise this may be a bit of a
> complicated problem in computational geometry, but it also seems like
> it should be a problem common enough for someone to have solved it
> very well already.
I recently added kernel smoothing to the econometrics package in o-f. This won't
use polygons, but it will do something similar, if that helps.
M.