Arcgis Pro 2.9 ArcPy Get Selected Feature

[YinghongLi1]

If a user selects a feature from the map by clicking,  can I use Python to get this selected feature?  I am from ArcObject and am learning ArcPy.  From the reference document and samples, I have not found a way to get the selected feature from the map directly.  I am wondering if ArcPy has classes/functions to interact with maps.

Thanks

[BlakeTerhune · Accepted solution]

You'll want to get familiar with the arcpy.mp sub module. In general, you'll define a project, then identify a map in that project, then a layer in that map, then call the layer's getSelectionSet () method. This only gives you a list of objectId values for the selected features, not the actual feature. If you want access to the feature, use a data access cursor. Or, if you want to run a tool on the selected feature, you can usually just use the layer with the selection as the input and it will only run on the selection.

[YinghongLi1]

Thanks.  I assume that there is no method that can get a map click point, right?

[BlakeTerhune · Accepted solution]

Interesting question. If you were making a Python Toolbox, I think you could use a GPFeatureRecordSetLayer parameter. In the getParameterInfo function of the tool, you would create a feature class that outputs to a memory workspace, then make a feature layer from the feature class, and set the value of the GPFeatureRecordSetLayer parameter to the feature layer. This creates an input on the tool to draw a feature on the map.

I've seen this done in ArcMap, but not in ArcGIS Pro so the process might be slightly different.

[RhettZufelt · Accepted solution]

Not sure in Pro as I have not looked into Add Ins for Pro, but in ArcMap, getting the map click point was fairly simple using an Add In.

Good example here.

R_

[YinghongLi1]

Thanks.  Will take a look at the samples.

[YinghongLi1]

i got a message saying "can't be downloaded securely".  Please help.  Thanks...

[RhettZufelt]

Looks like that page hasn't been updated to https yet.

Here is the download link in https.

R_

[YinghongLi1 · Accepted solution]

Thanks.  I got the downloads.

It is an addin file so i can't check the source file.  I need some Python code to guide my tool creation.  

[YinghongLi1]

Thanks.  I got it.  I am going to take a look at it.