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Re: Missing 'dsearch'
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From: |
Stefan van der Walt |
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Subject: |
Re: Missing 'dsearch' |
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Date: |
Mon, 24 Oct 2005 20:09:16 +0200 |
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User-agent: |
Mutt/1.5.9i |
On Mon, Oct 24, 2005 at 10:36:07AM -0500, Maarten D. de Jong wrote:
> While researching some of the geometry functions in the SF-repositry, I
> noticed that there is no 'dsearch'. Without it, no natural neighbours
> interpolation is possible---and that is a nasty surprise, because I had
> counted on using precisely that particular type of interpolation for my
> work.
The function 'delaunay' is available, so implementing dsearch
shouldn't be too difficult.
In the meanwhile, a hack like this should work:
function i = dsearch(x,y,IGNORED,xi,yi)
dx = x-xi;
dy = y-yi;
d = dx.^2 + dy.^2;
i = find(d == min(d));
endfunction
Regards
Stéfan
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