Maptitude - http://research.umbc.edu/~roswell/maptitude.html
Bob,
As you know, trying to produce your table of points and closest polygons is
virtually impossible for lots of points within Maptitude. It is the kind of
thing that is quite easy in the GISDK. If you can't get the DK and write or
have one of your programmers write the program, then you could post the
project on this list and see if one of the DK programmers on the list can do
it (if you have the funds). It would probably take several hours total time
for someone to do it with the field names and layer names hardwired.
Larry Manire
-----Original Message-----
From: McLaughlin, Bob (DHS-EHIB) [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, March 06, 2001 10:40 AM
To: '[EMAIL PROTECTED]'
Subject: RE: [Maptitude] Tagging Overlapping Selections
Maptitude - http://research.umbc.edu/~roswell/maptitude.html
I have a layer of points (schools) and a layer of polygons (sections). I
create a selection set of the polygons that are within 1.5 miles of the
points. In many cases, a point "shares" the same polygon within the 1.5
mile radius. Thus, within the 1.5 mile radius of point #1 are polygons #1,
#2, and #3. Within the 1.5 mile radius of point #2 are polygons #3, #4, and
# 5. Thus, polygon #3 is common to both points. Now, I want to tag each
polygon with attributes from the points layer. I create a new field and
fill it using the TAG method. This works great, except for the common
polygons. These polygons get tagged with the attributes for the last point.
What I need is for another record to added in these cases so that I have a
table that has:
Polygon #3 Attributes from point #1
Polygon #3 Attributes from point #2
Is it possible to do this in Maptitude? In the past, I've had to do this
for just a few points, so I created separate selection sets for each
point/polygon combination, tagged them, and then exported them and
recombined them outside Maptitude. Now, however, I need to undertake this
type of analysis on thousands of points, so this solution is not practical.
Any insight is appreciated.
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