Model Builder Help w/Geoprocessing

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12-19-2012 10:27 AM
JeffSlauenwhite
New Contributor II
Hi All,

I have a shapefile of municipal boundaries and another of lights.  I want to select, and count the lights within each boundary and then write the result to a file or even simply get count of the number within model builder, to keep it simple.

Anyone have any simple ideas on how can I do this without making a series of select by attribute and then select by location tools?

Furthermore how could I write out the count of these records to a file?
I know there are tools within model builder I'm just not aware of - I'm fairly novice to using it.

Anything you can tell me will help.

Thanks
JS
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1 Reply
DaleHoneycutt
Occasional Contributor III
Lot's of ways to do this, but the simplest is probably the Spatial Join tool.  The parameter values you supply to Spatial Join are as follows:

Target Features: your municipal boundary polygons
Join Features: your "lights" feature class - I'm assuming these are point features.  If not, this technique won't work.
Output Feature Class: whatever you want.  This will be a polygon feature class.
Join Operation: JOIN_ONE_TO_ONE
Field Map: (no change, leave as is)
Match Option: INTERSECT

The output feature class will have a Join_Count field which is the number of points that fall w/in the polygon
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