I am trying to assign attributes from one point layer to another point layer based on closest location.
So I am trying to use a spatial join and generate the ArcPy code in order to ensure reproducibility.
I have tried two ways to do a spatial join.
First, "right click on the layer file in the table of contents" > joins and relates > join > ... . This works but does not generate Python code.
Second, Analysis toolbox > Overlay toolset > spatial join. This generates Python code but also an "Error 999999: An expected Field was not found or could not be retrieved properly. Failed to execute (SpatialJoin)." (the second sentence of the error message appears roughly 20 times). I played around with different "Field Maps", "Match options", "Search Radius" and "Distance Field name" without success.
Running the following python code has also generate the same error:
import arcpy arcpy.env.workspace = "Path_to_workspace" arcpy.SpatialJoin_analysis ("dataset1", "dataset2","Path_to_folder_with_output_file/output_file.shp","JOIN_ONE_TO_ONE", "KEEP_ALL", "#", "CLOSEST", "#", "#")
Do you know how I can generate Python code from the first approach or avoid the error in the second code?
I think the issue arose because "dataset1" and "dataset2" where generated from CSV files using coordinates and the MakeXYEventLayer_management command. So once I saved them as a shapefile and used the shapefile for the spatial join it worked. It is not obvious to me why this is the case, so feel free to add intuition.
I solved the issue using the following code:
import arcpy arcpy.env.workspace = "Path_to_workspace" # Define projection spRef = "path_to_projection/projection.prj" # Data set 1 arcpy.MakeXYEventLayer_management("path_to_table/table_dataset1.txt", 'x', 'y', 'dataset1',spRef) arcpy.FeatureClassToFeatureClass_conversion('dataset1', 'Path_to_folder_with_input_file', 'dataset1.shp') # Data set 2 arcpy.MakeXYEventLayer_management("path_to_table/table_dataset2.txt", 'x', 'y', 'dataset2',spRef) arcpy.FeatureClassToFeatureClass_conversion('dataset2, 'Path_to_folder_with_input_file', 'dataset2.shp') arcpy.SpatialJoin_analysis ("Path_to_folder_with_input_file/dataset1.shp", "Path_to_folder_with_input_file/dataset2.shp","Path_to_folder_with_output_file/output_file.shp","JOIN_ONE_TO_ONE", "KEEP_ALL", "#", "CLOSEST", "#", "#")