topic Re: MOOC, Cartography and ArcGIS PRO in Python Questions

MOOC, Cartography and ArcGIS PRO

AdrianOConnor — Thu, 03 Mar 2022 22:47:40 GMT

Hello

I'm well into Week 3 of the MOOC Program and thoroughly enjoying the experience.

However, after digging a bit deeper by poking around the Python Notebook and viewing a few videos on Python and ArcPy I've come to the conclusion that there's a V8 under the hood!

The trouble is I don't know how to get it out of first gear.

Here is a question for you. In week three, we were asked to build a definition query. I was wondering can this definition query be exported/imported into Python Notebook?

The reason is that I would like to view the query as a python string. Does that make sense? I understand that python can accomplish all of the analysis tools + more and that the language is intuitive and easy to learn.

Well, I have to say I'm ready to venture into the unknown. I know that model builder can be exported to Python Notebook so I'm asking what about definition a query etc, etc.

I figure that beginning with concepts that are familiar to me might help me learn python. I want to get out of first gear and see what this baby can really do, but need your help!

Sincerely

Adrian

Re: MOOC, Cartography and ArcGIS PRO

RhettZufelt — Thu, 03 Mar 2022 23:18:16 GMT

Not exactly sure what you are asking, but the definition query can be read or set using the arcpy mapping module on the layer class.

So, if you set a definition query in Pro, you can use something like

infc.definitionQuery

to get the current query in python format. you can use this same property to set a definition query on a layer as well.

Re: MOOC, Cartography and ArcGIS PRO

KimberlyGarbade — Fri, 04 Mar 2022 00:20:47 GMT

The layer supports method will tell you if your layer supports a definition query:

The layer DefinitionQuery property will set a definition query on a layer: