topic Re: Model Builder - preconditions in Geoprocessing Questions

Model Builder - preconditions

AndreaBoyco — Fri, 23 Aug 2013 19:36:07 GMT

I am building a procedure using the model builder, but I have a problem with some tools that require the feature class to be created previously, and sometimes even showing in the table of contents of my project.
I have tried setting the preconditions but it still won't work.

I've had this problem up to now with "select attributes" and with "join fields". Is there any way to set the model for this to work?

Thanks

Re: Model Builder - preconditions

AmyKlug — Fri, 23 Aug 2013 20:09:22 GMT

I am building a procedure using the model builder, but I have a problem with some tools that require the feature class to be created previously, and sometimes even showing in the table of contents of my project.
I have tried setting the preconditions but it still won't work.

I've had this problem up to now with "select attributes" and with "join fields". Is there any way to set the model for this to work?

Thanks

You don't want feature classes to be created? You can try setting it to "intermidiate" then it won't be saved, just used in the model. (just right click the green circle/file created)

Re: Model Builder - preconditions

AndreaBoyco — Fri, 23 Aug 2013 20:18:39 GMT

no, that's not what I meant.

For example, during the procedure I want to select rows from a feature class that I created one step before; but because that file doesn't really "exist", the select tool won't run.

Re: Model Builder - preconditions

AmyKlug — Fri, 23 Aug 2013 20:31:20 GMT

Try Make feature layer:

http://resources.arcgis.com/en/help/main/10.1/index.html#//00170000006p000000

the input will be your output that doesn't exist yet

Re: Model Builder - preconditions

AndreaBoyco — Fri, 23 Aug 2013 20:56:26 GMT

Thanks, I'll try