Programming ArcGIS Pro with Python (2nd Edition) by Pimpler Eric

Author:Pimpler, Eric [Pimpler, Eric]
Language: eng
Format: epub
Publisher: Technics Publications
Published: 2021-04-29T16:00:00+00:00

Set the fields property on the UniqueValuesRenderer to the Condition field and apply the symbology to the layer.

import arcpy.mp as map

try:

aprx = map.ArcGISProject(“CURRENT”)

for m in aprx.listMaps(“Streets and Railroads”):

for lyr in m.listLayers(“Street_Centerlines”):

if lyr.isFeatureLayer:

sym = lyr.symbology

sym.updateRenderer(‘UniqueValueRenderer’)

sym.renderer.fields = [“Condition”]

lyr.symbology = sym

except Exception as e:

print(“Error: “ + e.args[0])

You can check your code against a solution file found at c:\Student\ProgrammingPro\Solutions\Scripts\UniqueValueRenderer.py

Load the code into the ArcGIS Pro Python window and run it. The Street_Centerlines layer will be updated as seen in the screenshot below.

Download

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