Create Unique Symbology of Images per Point based off of an attribute field

SK_bp — Fri, 27 Dec 2024 11:06:58 GMT

I have a Point layer in ArcGIS Pro 3.2. The underlying attribute table has a field called ImagePath. In that field are unique UNC paths to images (e.g. *.png etc) that I want to act as the symbol for that point feature on the map.

Currently, I have the following code, partly generated from genAI, but can't figure out how to get this working - if it's at all possible. Does anyone have experience with automating this process as a script in ArcGIS Pro?

import arcpy

# Define the project and map
project = arcpy.mp.ArcGISProject("CURRENT")
map = project.listMaps("YourMapName")[0]

# Define the layer
layer = map.listLayers("YourLayerName")[0]

# Create a new unique value renderer
symbology = layer.symbology
symbology.updateRenderer('UniqueValueRenderer')
symbology.renderer.fields = ['ImagePath']

# Clear any existing classes
unique_value_renderer = symbology.renderer
unique_value_renderer.removeAllValues()

# Add a class for each unique value in the ImagePath field
unique_values = set()
with arcpy.da.SearchCursor(layer, ['ImagePath']) as cursor:
for row in cursor:
unique_values.add(row[0])

for value in unique_values:
if value:
unique_value_renderer.addValue(value, value, value)
symbol = unique_value_renderer.getSymbol(value)
picture_marker = arcpy.mp.PictureMarkerSymbol()
picture_marker.url = value
symbol.updateSymbol(picture_marker)

# Apply the symbology to the layer
layer.symbology = symbology

# Refresh the active view
arcpy.mp.ArcGISProject("CURRENT").activeView.refresh()

Re: Create Unique Symbology of Images per Point based off of an attribute field

DanPatterson — Fri, 27 Dec 2024 13:52:47 GMT

Before you go the coding route, have you managed to set it up properly?

Marker symbol layers—ArcGIS Pro | Documentation

picture symbols are expected to be in a blob field in an attribute table or preferably an attachment table

topic Create Unique Symbology of Images per Point based off of an attribute field in ArcGIS Pro Questions

Create Unique Symbology of Images per Point based off of an attribute field

Re: Create Unique Symbology of Images per Point based off of an attribute field