How to create offline_areas using extent

AgrimotionTeam — Fri, 03 Apr 2020 09:27:21 GMT

Hi,

I am trying to set layers in a webmap to be available for offline use without success. I want to create the offline areas using the layer extent, since I cannot create bookmarks from within python. I would greatly appreciate any assistance.

I've written the following Python routine (using arcgis 1.7.0):

def enable_offline_use(gis, wm):
#get each layer's extent and title
for layer in wm.layers:
layer_obj = gis.content.get(layer['itemId'])
item_prop = {'title': layer_obj.title }

#make available offline
wm.offline_areas.create(layer_obj.extent, item_prop)
wm.offline_areas.update()

This fails at the create call with:

... line 116, in enable_offline_use

wm.offline_areas.create(layer_obj.extent, item_prop)
File "C:\Program Files\ArcGIS\Pro\bin\Python\envs\arcgispro-py3\lib\site-packages\arcgis\mapping\_types.py", line 1296, in create
elif isinstance(area, Envelope) or \
NameError: name 'Envelope' is not defined

_types.py does not import Envelope. I can update the file as follows:

from arcgis.geometry import SpatialReference, Polygon, Envelope

Now it goes past this point, but when turning on verbose I get the following error:

INFO:arcgis.geoprocessing._tool:Running script CreateMapArea...
object of type 'NoneType' has no len()
ERROR:arcgis.geoprocessing._tool:object of type 'NoneType' has no len()
Completed script CreateMapArea...
INFO:arcgis.geoprocessing._tool:Completed script CreateMapArea...
Failed to execute (CreateMapArea).
ERROR:arcgis.geoprocessing._tool:Failed to execute (CreateMapArea).

So to summarize:

Should I be adding "Envelope" to the _types.py file, or is my configuration missing something?
Am I doing something obviously wrong in my script?

Thanks.

topic How to create offline_areas using extent in Python Questions

How to create offline_areas using extent