We have a stand-alone software (Point2Point) that takes in an origin and a
destination dbf. Files must have lat and long columns. The software allows
you to calculate the nearest destination to the origin, the nearest n
destinations to the origins; this can also be limited by a radius around
each origin. For example, show me the nearest 5 destinations within 8
miles...
Output is a text file. Please let me know if you'd like more info on this...
Erin Rubio
Spatial Insights, Inc.
A Geographic Information Services Company
8221 Old Courthouse Road Suite 203 Vienna, VA 22182
Tel: 703-827-7034 Fax: 703-827-7037
Sales: 800-347-5291
[EMAIL PROTECTED] spatialinsights.com
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]]On Behalf Of Richard Block
Sent: Tuesday, September 12, 2000 9:34 AM
To: [EMAIL PROTECTED]
Subject: MI Minimum Distance between two sets of points
Mappers
I have a large database of crimes (n=150,000) and a smaller data base of
rapid transit stations (n=125). For each of the crimes, I need to calculate
the minimum distance to a transit station and add that distance and the name
of the station to the database.
I have done this previously using a spreadsheet, but with so many incidents,
this seems inappropriate. Distance.mbx from Korem does not seem appropriate
because it requires that a point be selected and I have 150,000 of them.
Does anyone have a suggestion for an automated way to do this?
Thanks for your help
Richard Block
Department of Sociology
Loyola University
6525 N. Sheridan Rd.
Chicago IL 60626
773 508 3454
FAX 773 508 7099
[EMAIL PROTECTED]
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