Custom Weighted Overlay Tool (Python) Not Automatically Adding Output to Map Document

Anonymous User — Thu, 24 Mar 2022 02:09:07 GMT

I am attempting to develop a custom Weighted Overlay tool (via Python script). This tool is based on the utility of the Weighted Overlay (Spatial Analyst) tool. I would like for the user to input only the layer weight values (0% - 100%) and be presented with the output weighted overlay raster layer. I have hard-coded the four input raster data layers, which is the goal. I have developed a script that correctly creates the new layer, but the newly created output raster data layer is not automatically added to the map document. Is there something I can add to my script to accomplish this automatic addition?

Here is the script that I am using to publish this geoprocessing service:

# FireIncidentRiskAnalysis.py
# Usage: FireIncidentRiskAnalysis <Fire_Incident_Risk_Analysis>
# Description:
# ---------------------------------------------------------------------------

# Import arcpy module
import arcpy
from arcpy import env
from arcpy.sa import *

arcpy.env.overwriteOutput = True
arcpy.env.workspace = arcpy.env.scratchGDB

StationProximity = arcpy.GetParameter(0)
if StationProximity == '#' or not StationProximity:
StationProximity = 25

Landuse = arcpy.GetParameter(1)
if Landuse == '#' or not Landuse:
Landuse = 25

HazardousSiteProximity = arcpy.GetParameter(2)
if HazardousSiteProximity == '#' or not HazardousSiteProximity:
HazardousSiteProximity = 25

HydrantProximity = arcpy.GetParameter(3)
if HydrantProximity == '#' or not HydrantProximity:
HydrantProximity = 25

# Script arguments
#Fire_Incident_Risk_Analysis = arcpy.GetParameterAsText(0)
#if Fire_Incident_Risk_Analysis == '#' or not Fire_Incident_Risk_Analysis:
Fire_Incident_Risk_Analysis = "C:\\CapstoneProject\\Project_Toolbox\\FireIncidentRiskAssessment\\FireIncidentRiskAssessment.gdb\\AnalysisOutput" # provide a default value if unspecified

# Local variables:
Proximity_to_Fire_Station_Raster = "ParcelsNearStationRaster"
Landuse_Raster = "LanduseReclass"
Hazardous_Material_Site_Buffer_Raster = "HazardousMaterialSites"
Fire_Hydrant_Buffer_Raster = "FireHydrantDistanceBuffers"

remapstation = RemapValue([[1,4],[2,3],[3,2],[4,1],["NODATA","NODATA"]])
remaplanduse = RemapValue([[1,4],[2,3],[3,2],[4,1],["NODATA","NODATA"]])
remaphazardous = RemapValue([[1,4],[2,3],[3,2],[4,1],["NODATA","NODATA"]])
remaphydrant = RemapValue([[1,5],[2,4],[3,3],[4,1],["NODATA","NODATA"]])

myWOTable = WOTable([[Proximity_to_Fire_Station_Raster, StationProximity, "VALUE", remapstation],
[Landuse_Raster, Landuse, "VALUE", remaplanduse],
[Hazardous_Material_Site_Buffer_Raster, HazardousSiteProximity, "VALUE", remaphazardous],
[Fire_Hydrant_Buffer_Raster, HydrantProximity, "VALUE", remaphydrant]], [1, 5, 1])

# Execute WeightedOverlay
WeightedOverlayOutput = WeightedOverlay(myWOTable)

arcpy.CopyRaster_management(WeightedOverlayOutput, Fire_Incident_Risk_Analysis)
#WeightedOverlayOutput.save(Fire_Incident_Risk_Analysis)

Any assistance would be greatly appreciated.

Re: Custom Weighted Overlay Tool (Python) Not Automatically Adding Output to Map Document

RhettZufelt — Thu, 24 Mar 2022 14:59:23 GMT

you should be able to use arcpy.mapping to add the layer to the dataframe:

Add Layer

topic Custom Weighted Overlay Tool (Python) Not Automatically Adding Output to Map Document in ArcMap Questions

Custom Weighted Overlay Tool (Python) Not Automatically Adding Output to Map Document

Re: Custom Weighted Overlay Tool (Python) Not Automatically Adding Output to Map Document