Latest Contributions by DaleHoneycutt

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 ... View more

FYI: In 10.1, there is a new data access Python module that has a ListDomains function that returns Domain objects. Domain objects have all the properties of the domain, not just the name. ListDomains is far superior to describing a workspace object. ... View more

isthere = False for domain in domains:   if domain == "GOES_TO":     isthere = True     break if not isthere:   # do something ... View more

The only way I can think of is to have the user supply the field mapping; they'll have to give you the name of a field on the shapefile and the corresponding field on your output FC.  You'll then have to create your own field mapping object in a script to use in the append tool.  Another way is to force your user to rename their fields to known names/types.  There are no easy solutions to this I'm afraid. ... View more

Does the documentation help?  Start with the Quick Tour of Feature and Record set topic.  I think it'll answer all your questions. ... View more

If your species are in separate feature classes, just run Intersect once, feeding it the separate feature classes.  If you have but one feature class containing all the species, just run Intersect on that one feature class. If you have some data you'd could let me play with, zip it up and email it to arcgisteamanalysis@esri.com.  I've been playing with some made-up data... it looks like an Identity (not Intersect) is what you need...  but w/o specific data, it's hard to say.  In any case, this is not a straight-forward problem, so I'd like to help you solve it. ... View more

Do you have polylines of each species?  I'm guessing that these polylines overlap each other.  It seems like you should be able to use the Intersect tool. Perhaps you can provide a small sample dataset? ... View more

If you're running 10.1 Service Pack 1, try 64-bit background processing.  This isn't a 'magic bullet' to use in place of careful optimization (all good points above). ... View more

I may be wrong here, but it sounds like you want to use the Concatenate Row Values tool found here: http://www.arcgis.com/home/item.html?id=52dfcef46fdb4c76bfbc08dc01570f3c ... View more

Use Table.  "Table View" is for tables in ArcMap's table of contents.  Like a Feature Layer, a Table View can have a selection. For the output value, you will need to query the result object.  The result object has a .getOutput method. ... View more

More information about your script is needed...  For example, are the variables "inLayer" and "pAOI" script parameters?  Please reply with the full script that you use in ArcMap. ... View more

Curtis -- you're absolutely right... my mistake (late night typo).  I would never recommend personal geodatabases...  File geodatabases all the way! Thanks for catching this! Dale ... View more

Sounds like you're writing to a shapefile instead of a geodatabase.  The reason is probably because your scratch workspace environment is set to a folder instead of a geodatabase.  There are a couple of ways to fix this: - In ModelBuilder, make sure that the output of Aggregate Points is being written to a geodatabase (file or personal--I recommend personal). - Set you Scratch Workspace environment variable to a geodatabase.  I suspect it's set to a folder. Using the current and scratch workspace environments explains scratch workspace and autogenerate output names (interesting stuff is at the bottom of the topic). ... View more