Find Points within Polygons

Permanently deleted user

September 25, 2018 18:45

I have a fairly simple workflow where I am trying to identify tobacco facilities that fall within 1000 feet of a school. I've created a buffer layer around the schools and my basic workflow is as follows:

 

Query the Buffer layer

 

Get the geometry of the resulting buffer feature set

 

Using a For Each - Query the tobacco facilitiy layer using the geometry of the buffer layer.

 

However, I have an alert at the end showing the tobacco facility query result count and it keeps returning 0, like none of the facilities fall within the buffer, but I know they do.

 

Any ideas what I'm doing wrong? My workflow is below.

 

https://drive.google.com/open?id=1A7iOvq1zZ0zzs3vfBKxH6f_eV8MtUPzB

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  Permanently deleted user

  September 29, 2018 00:36

  Hi Lisa, 

   

  It looks like right now your workflow:

  1. queries all features in your layer [bufferFeatureLayerURL]
  2. gets the geometry from the first feature that was returned by that query
  3. goes through each feature that was returned in step 1.  For each one, it runs a second query on [buyFeatureLayer], which looks for things that interect the geometry from step 2.  
  4. We show (alert) the count of features found by the query in step 3

  I think what you'll want to do is replace that GetGeometry activity (which only gets the first feature's geometry) with a UnionTask activity (which will combine the geometries from all the features).  Then take your second query out of the ForEach, so that it only runs once.  If your geometries are unioned, only need to run one query on that to find everything in [buyFeatureLayer] that intersects.

   

  Hope that helps! 

   

  -Amanda

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  Permanently deleted user

  October 01, 2018 18:54

  Thank you Amanda! That did it!

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