topic Re: Zoom map to the extent of a layer in Arcpy.mp (ArcGIS Pro Project) in Python Questions

Zoom map to the extent of a layer in Arcpy.mp (ArcGIS Pro Project)

JamesTaylor3 — Tue, 02 May 2017 20:08:43 GMT

I'm writing code to create new ArcGIS Pro Projects using the Pro arcpy (package arcpy.mp)

Doing something like this:

import arcpy.mp
aprx = arcpy.mp.ArcGISProject(r"C:\temp\Empty.aprx")
map = aprx.listMaps()[0]
map.map.addDataFromPath(r"C:\Users\xxxxxx\Documents\Test1\Orthomosaic.tif")
aprx.saveACopy(r"C:\temp\jNew.aprx")

But I can't figure out to zoom the map to the extent of Orthomosaic.tif (or any other extent for that matter).

From the docs at Alphabetical list of arcpy.mp classes—ArcPy | ArcGIS Desktop

I can see that a MapFrame has a zoomToAllLayers method, but a MapFrame is only available on a Layout element.

Anyone know how to do this?

Thanks.

Re: Zoom map to the extent of a layer in Arcpy.mp (ArcGIS Pro Project)

IanMurray — Tue, 02 May 2017 20:45:42 GMT

I don't use ArcGIS Pro yet, but looking at the various helps, I would guess you would need to get the extent object of your layer and then apply that extent a Camera Object, which you can use to overwrite the default Camera object in your Map or Mapframe.

The Example on the Camera Help my point you in the right direction.

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

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

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

Re: Zoom map to the extent of a layer in Arcpy.mp (ArcGIS Pro Project)

JamesTaylor3 — Tue, 02 May 2017 20:51:10 GMT

There's this statement:

Extent is not a direct property of the Camera object because it is not an explicit property but rather a derived property. Camera positions do not store extent properties, but from an X, Y location and a scale, extent is derived. The getExtent method will return a derived extent. When an extent is returned from a 3D map view, it is based on the camera position looking straight down (pitch=-90). When the setExtent method is used on a 3D map, again, the result will appear as if the camera is looking straight down.

And I have tried setting X,Y and Scale but they don't seem to take. They always remain nan.

I have also tried zooming a layout and copying the camera from that to the Map.defaultCamera. The extent on the map seems correct on the Map when you open the project, however ArcGIS Pro doesn't zoom the map to that extent when you open the project.

Re: Zoom map to the extent of a layer in Arcpy.mp (ArcGIS Pro Project)

IanMurray — Sat, 11 Dec 2021 13:34:36 GMT

Your last sentence seems to contradict itself, could you be a little clearer?

The Camera is the only thing now that controls extents and scales, since there is no longer a dataframe, so it seems like changing the Camera would be to go about this.

From the help:

import arcpy
aprx = arcpy.mp.ArcGISProject(r"C:\Projects\YosemiteNP\Yosemite.aprx")

m = aprx.listMaps("Yose*")[0]
lyr = m.listLayers("Ranger Stations")[0]
lyt = aprx.listLayouts("Main Attr*")[0]
mf = lyt.listElements("mapframe_element", "Yosemite National Park")[0]
mf.camera.setExtent(mf.getLayerExtent(lyr, False, True))

aprx.saveACopy(r"C:\Projects\YosemiteNP\Yosemite_Updated.aprx")
del aprx‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍

Have you tried setting the camera of both the map frame and map?

Also would you mind posting your code ths far you've been trying?

bixb0012‌

Re: Zoom map to the extent of a layer in Arcpy.mp (ArcGIS Pro Project)

JamesTaylor3 — Tue, 02 May 2017 21:42:54 GMT

The example you listed above only zooms the Layout, not the Map that the Layout contains.

I have tried setting both the MapFrame and the Map. That's what I was trying to say in the last sentence of my last post.

My code is essentially this:

import arcpy.mp
aprx = arcpy.mp.ArcGISProject(r"C:\temp\Empty.aprx")
map = aprx.listMaps()[0]

layout = aprx.listLayouts()[0]
map.map.addDataFromPath(r"C:\Users\xxxxxx\Documents\Test1\Orthomosaic.tif")

mapFrame = layout.listElements("MAPFRAME_ELEMENT")[0]

mapFrame.zoomToAllLayers()

map.defaultCamera = mapFrame.camera
aprx.saveACopy(r"C:\temp\New.aprx")

And the Map is added to the Layout in Empty.aprx before I run this code.

Now when I open New.aprx the map is NOT zoomed to the extent of all layers (the extent of Orthomasaic.tif), however if you look at the Map Properties its extent is set to the extent of all layers (the extent of Orthomasaic.tif).

Re: Zoom map to the extent of a layer in Arcpy.mp (ArcGIS Pro Project)

JoshuaBixby — Tue, 02 May 2017 21:51:43 GMT

In order to modify the extent, scale, etc... using ArcPy; you need to retrieve the camera of a mapframe, not the defaultCamera of a map. Insert a layout, insert a mapframe tied to a map, and then you can set the extent, scale, etc...

(Example code will come later)

Re: Zoom map to the extent of a layer in Arcpy.mp (ArcGIS Pro Project)

JamesTaylor3 — Sat, 11 Dec 2021 13:34:39 GMT

I uploaded my code, project and image for testing to here:

https://community.esri.com/docs/DOC-10001-zoom-to-a-layer-in-arcgis-pro-project-using-arcpymp

Here's my code:

import arcpy.mp

try:
 aprx = arcpy.mp.ArcGISProject(r"C:\Temp\ArcPro\Empty.aprx")
 
 map = aprx.listMaps()[0]
 print(map.name)
 
 layout = aprx.listLayouts()[0]
 mapframe = layout.listElements("MAPFRAME_ELEMENT")[0]
 print (mapframe.name)
 print (mapframe.map.name)

 ext = mapframe.camera.getExtent()
 print ("MapFrame Extent: " + ext.JSON)

 mapframe.map.addDataFromPath(r"C:\Temp\ArcPro\Orthomosaic.tif")
 mapframe.zoomToAllLayers()

 ext = mapframe.camera.getExtent()
 print ("MapFrame Extent: " + ext.JSON)

 mapext = map.defaultCamera.getExtent()
 print ("Map Extent: " + mapext.JSON)

 aprx.saveACopy(r"C:\Temp\ArcPro\New.aprx")

except Exception as err:
 print("Error Aprx. %s" % str(err))

Here's the output:

MyMap
My Map Frame
MyMap
MapFrame Extent: {"xmin":-13520478.935883986,"ymin":2728123.2144682845,"xmax":-10568557.934067367,"ymax":6815398.4477528343,"spatialReference":{"wkid":32632,"latestWkid":32632}}
MapFrame Extent: {"xmin":424855.68683000002,"ymin":5132283.3477261541,"xmax":425127.21863000002,"ymax":5132659.3148338469,"spatialReference":{"wkid":32632,"latestWkid":32632}}
Map Extent: {"xmin":424842.11024000001,"ymin":5132306.757046001,"xmax":425140.79522000003,"ymax":5132635.9055140009,"spatialReference":{"wkid":32632,"latestWkid":32632}}
Press any key to continue . . .

When you open New.aprx in ArcGIS Pro the Layout is zoomed to Orthomosaic.tif, but MyMap is not, even though the Map Extent looks correct and is the same as the MapFrame Extent.

Re: Zoom map to the extent of a layer in Arcpy.mp (ArcGIS Pro Project)

JamesTaylor3 — Wed, 03 May 2017 16:37:42 GMT

I just talked to an arcpy.mp developer and he said zooming on a Map View is not supported in arcpy.mp yet and probably will not be for awhile.

Re: Zoom map to the extent of a layer in Arcpy.mp (ArcGIS Pro Project)

MarkHammond — Fri, 20 Apr 2018 13:05:49 GMT

I was able to get this working on ArcGIS Pro 2.1.2 (but previous versions may work as well). It seems to only work if I run it from the command line, not from within the Pro python window. Here is the code in case anyone is trying to do something similar.

This code queries a layer for a feature with a specific ID, then zooms the mapframe to the extent of the feature and outputs a PDF.

import arcpy

project = arcpy.mp.ArcGISProject("//mapserver/blah/Pro-workforce2.aprx")
map = project.listMaps()[0]
whereZoom = "BlahID = '20181520528'"
layer = map.listLayers("Zoom")[0]
arcpy.SelectLayerByAttribute_management(layer,"NEW_SELECTION",whereZoom)
lyt = project.listLayouts()[0]
mf = lyt.listElements('MAPFRAME_ELEMENT','*')[0]
mf.camera.setExtent(mf.getLayerExtent(layer,True,True))
mf.zoomToAllLayers()

lyt.exportToPDF("//mapserver/blah/test-%s.pdf" % whereZoom)

Re: Zoom map to the extent of a layer in Arcpy.mp (ArcGIS Pro Project)

HenryWhitenack — Tue, 19 Jun 2018 19:58:35 GMT

This bit of code works like a charm, thanks for posting Mark Hammond.

Re: Zoom map to the extent of a layer in Arcpy.mp (ArcGIS Pro Project)

simoxu — Tue, 03 Jul 2018 08:02:16 GMT

Thanks for sharing.

This works for the layout view, but it won't change the map extent in the mapview.

I can't believe it that this function has not been implemented in ArcGIS Pro 2.2.0.

Re: Zoom map to the extent of a layer in Arcpy.mp (ArcGIS Pro Project)

simoxu — Tue, 22 Jun 2021 08:27:31 GMT

I've created a ArcGIS Idea for this function to be considered by ESRI. Please vote it up.

https://community.esri.com/ideas/15227

Re: Zoom map to the extent of a layer in Arcpy.mp (ArcGIS Pro Project)

AustinRobey1 — Fri, 21 Dec 2018 19:25:06 GMT

I posted and up-voted on the ArcGIS Idea above, but posting here too in case it helps anyone...

You can sort-of hack this workflow in ArcPro by running the script in a Task Step and ending with a selection rather than a zoom extent. Then, pass the selection to a second Task Step which runs the Zoom To Selection command. It is not great, slower and clunkier than simply running the script directly, but I have gotten it to work.

Re: Zoom map to the extent of a layer in Arcpy.mp (ArcGIS Pro Project)

Anonymous User — Tue, 13 Oct 2020 16:06:35 GMT

{"xmin":-13520478.935883986,"ymin":2728123.2144682845,"xmax":-10568557.934067367,"ymax":6815398.4477528343,"spatialReference":{"wkid":32632,"latestWkid":32632}}

Do you know what units the map frame extent coordinates are in? I am having a similar issue. thank you

Re: Zoom map to the extent of a layer in Arcpy.mp (ArcGIS Pro Project)

ChrisHolmes — Thu, 10 Dec 2020 15:39:43 GMT

Is it still the case that zoom to extent on the map view is not supported in arcpy? So far, my searching makes me think that it is not. thanks

@JoshuaBixby

Re: Zoom map to the extent of a layer in Arcpy.mp (ArcGIS Pro Project)

JoshuaBixby — Thu, 10 Dec 2020 18:49:01 GMT

Since 2018 when this thread was opened, ArcPy has added functionality.

aprx = arcpy.mp.ArcGISProject("CURRENT") ext = # ArcPy Extent Object aprx.activeView.camera.setExtent(ext)

The activeView property returns either the active map or active layout, and the camera can be accessed to set the extent.

Re: Zoom map to the extent of a layer in Arcpy.mp (ArcGIS Pro Project)

ChrisHolmes — Thu, 10 Dec 2020 21:27:59 GMT

Yes, agreed. I was able to zoom to extents on the active view. But there's no way to do this on a map view that is not active or when working with a project that is not currently open in ArcGIS Pro.

thanks

Re: Zoom map to the extent of a layer in Arcpy.mp (ArcGIS Pro Project)

ChrisHolmes — Mon, 14 Dec 2020 16:29:21 GMT

Having spent some time with the layout and mapframe I am now using zoom to extent and set scale on the map frame which works well.

Having said that the end use will still need to manually zoom to extent in the map view to do their work.

Ideally I would have liked to loop through all map views using arcpy and complete the zoom to extent before the aprx file opens so that all map views would be focused on the appropriate parcel when it opens, but this will have to do.

Re: Zoom map to the extent of a layer in Arcpy.mp (ArcGIS Pro Project)

PattyLake1 — Wed, 16 Dec 2020 12:58:27 GMT

Wondering if the zoom to selected feature in ArcPy on the Map View versus the Map Frame has been resolved? I am trying to do a select feature by attribute in Model Builder (ARCPRO) and zoom to the selected features. I attempted to locate your submitted Idea but the link is broken. Thanks!

Re: Zoom map to the extent of a layer in Arcpy.mp (ArcGIS Pro Project)

ChrisHolmes — Thu, 17 Dec 2020 16:55:40 GMT

As Joshua mentioned and as far as I can see you can only zoom on the active map view. Otherwise it must be done on a layout/map frame.