Calculate Field on Records Selected by Location in Modelbuilder not Calculating

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04-27-2012 02:23 PM
MikeMacRae
Occasional Contributor III
I have created a model and I have added a 'Select by Location' query to select records from a polygon feature class that lies outside of another polygon feature class.

[ATTACH=CONFIG]13900[/ATTACH]

So, I set the selection to choose all feature from the first polygon feature class 'WITHIN' the second polygon feature class and then set the 'Selection Type' to 'SWITCH_SELECTION' to get the feature outside.

[ATTACH=CONFIG]13899[/ATTACH]

I then use the 'Calculate Field' using the output of the select by location above, as an input to calculate a field called 'Comment' with the string 'Area2 outside of Area1' in hopes that it will only calculate the selected features.

[ATTACH=CONFIG]13901[/ATTACH]

It is not doing this. It's calculating all the records. How to I only calculate the selected records?

Thanks,
Mike
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MikeMacRae
Occasional Contributor III
Hey, thanks for the help! I discovered that you have to use the 'Select Layer by Location tool' to select the records and then use the 'Select by Attributes' immediately after that and choose 'Switch Selection'

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3 Replies
DanLee
by Esri Regular Contributor
Esri Regular Contributor
I think you need to use Select Layer By Location tool twice to get the opposite/switched selection:
First, use the tool to make a NEW_SELECTION by an expression.
Second, use the tool to SWITCH_SELECTION, without any expression.
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by Anonymous User
Not applicable
Original User: PhillipR

If you have a whole bunch of points that reside in and outside of for example a polygon feature class. This is how I would go about it.

Try selecting all (points) and then using the Select by Layer By Location remove all (points) that are completely within the selecting features.(polygons) etc..

[ATTACH=CONFIG]13918[/ATTACH]
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MikeMacRae
Occasional Contributor III
Hey, thanks for the help! I discovered that you have to use the 'Select Layer by Location tool' to select the records and then use the 'Select by Attributes' immediately after that and choose 'Switch Selection'
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