Can't get ApplySymbologyFromLayer to work on Rasters.

Question

I'm having a hard time symbolizing a raster from a Layer file.

rasterPath = r"......\DEM\slopeoutput1"

rasterLayerName = 'slopeoutput12'

SlopeSymbology1 = ".....\SlopeAnalysis\HeatSlope.lyr"

md = arcpy.mapping.MapDocument(mxdpath)
df = arcpy.mapping.ListDataFrames(md)[0]

arcpy.MakeRasterLayer_management(rasterPath, rasterLayerName)
arcpy.mapping.Layer(rasterLayerName)
arcpy.ApplySymbologyFromLayer_management(rasterLayerName, SlopeSymbology1)

md.save()

I can get this to work in the python window but then when i run it as a script it doesnt apply the Symbology.

curtvprice · Answer

Here's an attempt as to what I'm getting at. I am assuming you want to run this script tool from ArcMap and you want the created feature class to be added to the current map. Your approach you have already (above) is appropriate if you are trying update an MXD on disk. import arcpy, datetime # script parameter type Folder, Input outfolder = arcpy.GetParameterAsText(0) # script parameter type Feature Class, Input prjbdy = arcpy.GetParameterAsText(1) # in script tool properties, type SQL Expression, Input # and set dependent on parameter 1 table express = arcpy.GetParameterAsText(2) # Script parameter 3 type Feature Class, Derived # and assign .lyr symbology to param 3 # Parameter 3 derived value is set below at end of script # hard coded feature class name outfc_name = "testingggADAdaani" date = datetime.datetime.now() fgdb_name = "SlopeAdam{}.gdb".format(date.strftime("%Y%m%d")) fgdb = arcpy.CreateFileGDB_management(namefile, fgdb_name) arcpy.env.workspace = str(fgdb) # str() converts result to path outfc = arcpy.Select_analysis(prjbdy, outfc_name, express) arcpy.SetParameterAsText(3, outfc) ‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍

AdamArcichowski1 · Answer

Yes, this would make my code a lot cleaner. Could you show me what you mean. I am aware of how to change Parameter Property to Derived. I just dont know how it would look in the script. Below is a test code i written up. import arcpy, datetime date = datetime.datetime.now() namefile = arcpy.GetParameterAsText(0) prjbdy = arcpy.GetParameterAsText(1) express = arcpy.GetParameterAsText(2) prjsymb = arcpy.SetParameterAsText(3) mxdpath = "C:\Users\Adam\Desktop\Test5.mxd" arcpy.CreateFileGDB_management(namefile, "\SlopeAdam" + date.strftime("%Y%m%d")+ ".gdb") fgdb = namefile + "\Slope" + date.strftime("%Y%m%d")+ ".gdb" arcpy.env.workspace = fgdb mxd = arcpy.mapping.MapDocument(mxdpath) df = arcpy.mapping.ListDataFrames(mxd)[0] arcpy.MakeFeatureLayer_management(prjbdy, "prjbdy_Layer",express) arcpy.CopyFeatures_management("prjbdy_Layer", "testingggADAdaani") arcpy.MakeFeatureLayer_management("testingggADAdaani", "test2") layer = arcpy.mapping.Layer("test2") arcpy.mapping.AddLayer(df, layer, "AUTO_ARRANGE") arcpy.ApplySymbologyFromLayer_management('test2', "C:\Users\Adam\Desktop\SlopeAnalysis\prjbdy_Layer.lyr") mxd.save() del mxd‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍

curtvprice · Answer

I understand, however the output will not be a parameter, it will be be saved in a FGDB automatically.

If the output path is not exposed as an output tool parameter (ie the output path is generated internally by the script), you set the output to Derived, apply the .lyr symbology to it -- and in your code populate the output path into that derived parameter with SetParameterAsText.

That said, glad you got it to work though -- whatever works is good as far as I am concerned!