Further to my earlier email. The spatial-cluster-detection code Ian points to is where I hope to integrate back my code... If only I can find time for it...
Andy http://www.geog.leeds.ac.uk/people/a.turner/ -----Original Message----- From: Ian Turton [mailto:[email protected]] Sent: 22 November 2011 17:35 To: Peter Borissow Cc: geotools-gt2-users 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 ------------------------------------------------------------------------------ All the data continuously generated in your IT infrastructure contains a definitive record of customers, application performance, security threats, fraudulent activity, and more. Splunk takes this data and makes sense of it. IT sense. And common sense. http://p.sf.net/sfu/splunk-novd2d _______________________________________________ Geotools-gt2-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/geotools-gt2-users ------------------------------------------------------------------------------ All the data continuously generated in your IT infrastructure contains a definitive record of customers, application performance, security threats, fraudulent activity, and more. Splunk takes this data and makes sense of it. IT sense. And common sense. http://p.sf.net/sfu/splunk-novd2d _______________________________________________ Geotools-gt2-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/geotools-gt2-users
