Dear mr. Luk,
We have developed two MapInfo plugins that might help you out!
The first tool is HOTSPOT. Hotspot accepts pointdata and returns the a
thematic grid where the colors indicate a measurement for point density.
This tool was originally developed for the Amsterdam Police Department
policy unit. There is used for creating maps of crime-density.
Where HOTSPOT does not produce a nearest neighbour analysis in the sence of
Voronoy polygons, TRIANGULATOR, our second tool, does. It takes any point
map and can produce
- Voronoy (or Thiessen) polygons. (This is a nearest neighbour analysis)
- Delaunay Triangles
- A thematic slope map
- An thematic aspect map
- An interpolated grid
- 3D surface map (with mapinfo 6)
- Contour lines
- Contour surfaces
A time limited, but fully functional, trial version of both these products
and more can be downloaded at:
www.mercatorgeo.nl
Please have look and let me know what you think.
Regards,
Roeland
Roeland van der Spek
Mercator Geosystems
www.mercatorgeo.nl
----- Original Message -----
From: Chiu Luk <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Tuesday, June 27, 2000 9:52 PM
Subject: MI Nearest Neighbor Analysis
> Hi everybody:
>
> Does anyone has ever written (or know who has written) a MapInfo routine
on Nearest Neighbor Analysis to measure the extent of point clustering? Any
hint to help me locate such resources is much appreciated. Thanks.
>
>
> Chiu LUK
> Policy & Research Section
> Urban Development Services
> City of Toronto
>
> Correspondence:
> Chiu Luk
> Urban Development Services
> East District Office, City of Toronto
> 150 Borough Drive
> Scarborough Civic Centre
> Toronto, ON M1P 4N7
>
> Phone: (416) 396-7031
> Fax: (416) 396-4265
> E-mail: [EMAIL PROTECTED]
>
>
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