topic Re: Extent of map in ArcGIS PRO in Python Questions

Extent of map in ArcGIS PRO

DavidMatthews3 — Sat, 11 Dec 2021 17:03:33 GMT

In the transition from arcpy.mapping to arcpy.mp there doesn't seem to be a way to get the extent (in order to calculate the center) of the current map.The camera extent only applies to layouts and MapFrames.

Does anyone know how to get around this?

Something like

aprx=arcpy.mp.ArcGISProject("CURRENT")
mapView = aprx.listMaps()[0]
extent = mapView.extent‍‍‍

Is this possible in pro?

Re: Extent of map in ArcGIS PRO

DanPatterson_Retired — Wed, 07 Mar 2018 00:58:37 GMT

I haven't had the need to burrow into it yet, but http://pro.arcgis.com/en/pro-app/arcpy/mapping/map-class.htm

cites that it is the mapframe that you are after

Maps are accessed using the listMaps function from the ArcGISProject object and it returns a Python list of Map objects. It is important to uniquely name each map so a specific map can be easily referenced using its name property. A map can also be accessed from a MapFrame object using the map property. Note: arcpy.mp does not provide access to map views within the application; it only provides access to MapFrames.

The mapframe http://pro.arcgis.com/en/pro-app/arcpy/mapping/mapframe-class.htm

Re: Extent of map in ArcGIS PRO

DavidMatthews3 — Sat, 11 Dec 2021 17:03:36 GMT

Thanks Dan but it looks like this only works for map frames in layouts. I'm looking for the current extent of the map (what would be a dataframe in 10.3).

So in 10.3 you might do this

mxd = arcpy.mapping.MapDocument("CURRENT")
df=arcpy.mapping.ListDataFrames(mxd)[0]
extent = df.extent

‍‍‍‍

Re: Extent of map in ArcGIS PRO

DanPatterson_Retired — Wed, 07 Mar 2018 11:09:08 GMT

Everything seems to be associated with the mapframe, even the camera's extent properties as you point out, there has to be a way to step back one step.

Re: Extent of map in ArcGIS PRO

DavidMatthews3 — Sat, 11 Dec 2021 17:03:39 GMT

After seeing this duplicate question arcGIS Pro Extents in the Viewing Pane Joshua Bixby which i missed yesterday it seems you need to save the aprx first and use defaultCamera

aprx=arcpy.mp.ArcGISProject("CURRENT")
mapView = aprx.listMaps()[0]
mapExtents=mapView.defaultCamera.getExtent()
mapExtents.lowerLeft‍‍‍‍

Pan around and save the aprx then

mapExtents=mapView.defaultCamera.getExtent()
mapExtents.lowerLeft‍‍

Gives you the current extents (in this case the lower left extents).

Seems like a bug /missing feature

Re: Extent of map in ArcGIS PRO

simoxu — Wed, 04 Jul 2018 04:06:44 GMT

I tried this code, it didn't work.

Is there an ArcgGIS Idea that we can vote to get this function implemented ASAP? it's hard to believe this function is missing in the latest version...

Re: Extent of map in ArcGIS PRO

DanPatterson_Retired — Wed, 04 Jul 2018 04:19:53 GMT

ArcGIS Ideas‌ is where you can create an idea

Re: Extent of map in ArcGIS PRO

simoxu — Wed, 04 Jul 2018 04:41:02 GMT

Just done it Please vote it up.

Allow arcpy.mp to change the map extent in ArcGIS Pro

Re: Extent of map in ArcGIS PRO

SamMcCants — Tue, 25 Jun 2019 09:47:10 GMT

This worked for me, thank you. One year later, is this still not possible without saving the project? This seems like a big oversight, no?

Re: Extent of map in ArcGIS PRO

MattWilkie1 — Thu, 03 Dec 2020 23:19:23 GMT

that link is now "hidden or archived". Searching about hasn't led me to it's new home yet.

Re: Extent of map in ArcGIS PRO

ToyotaT18 — Wed, 21 Jul 2021 23:23:21 GMT

I was looking for similar, thought I'd post the answer here in case anyone else was looking.

You can use aprx.activeView.camera.getExtent()

Re: Extent of map in ArcGIS PRO

SRK — Wed, 18 Sep 2024 14:11:16 GMT

@ToyotaT18This should be the accepted answer as this solution works without saving the project and always grabs the current view of the map currently looked at.