Ian-
Thanks for the link. The JaiToolsCircle class gives me some good ideas.
Thanks Again,
Peter
________________________________
From: Ian Turton <[email protected]>
To: Peter Borissow <[email protected]>
Cc: Michael Bedward <[email protected]>; geotools-gt2-users
<[email protected]>
Sent: Tuesday, November 22, 2011 12:35 PM
Subject: Re: [Geotools-gt2-users] Kernel Density Estimation - KDE
On 22 November 2011 12:45, Peter Borissow <[email protected]> wrote:
> Hello Michael-
> Thanks for your response. I *think* the way to go is to start off with a
> raster surface (GridCoverage2D) and iterate through all the pixels in the
> grid and measure distances to all the neighboring points (points that fall
> within a certain distance of the pixel). Knowing relative distances to the
> neighboring points, we can apply a simple calculation to assign a weight to
> the given pixel.
>
> Can you please point me to an example of how to iterate through all the
> pixels in an empty GridCoverage2D, get the coordinate for that pixel, and
> assign a value for the pixel?
Have a look at http://code.google.com/p/spatial-cluster-detection/ for
an example of generating rasters from circles - Points should be a
fairly simple simplification of the method :-)
Ian
--
Ian Turton
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