ArcGIS custom toolbox which uses a python script, for updating a mass amount of field aliases at once, using a list of field names and corresponding aliases input by user. Let’s say you have an ArcGIS feature class or table with a bunch of cryptic, abbreviated field names, and you want to add aliases to make them easier to understand. Let’s say you also have a list of field names and corresponding aliases that you have prepared in Excel or whatever. All you need to do is save that list as a CSV file with the field names in the first column and aliases in the second column. Then run this tool. The only inputs required are the feature class and the CSV file. The script uses the arcpy and csv packages. It first reads the CSV file and parses it into a python list where each item in the list is a list containing a field name and alias value. Then it iterates through that list, running an arcpy command that attempts to update the alias for each field name in the list. As the tool is running, it will display a message for each field that gets an updated alias. If a field name from your list does not exist in the feature class, the tool will display a message telling you that and move on to the next one. It should take just a few seconds per field to run. I ran this tool successfully with ArcGIS Desktop 10.5. I believe it could also be tweaked to work on a shapefile instead of a feature class. It’s really a pretty simple script, and I’m probably not the first person to come up with something like this, but I couldn’t find a solution searching elsewhere. Please let me know or suggest changes if it doesn’t work for you. ... View more

I struggled to find a simple solution to this, so thought I'd put it up to help the next person. What I was trying to do was iterate through the rasters which formed my mosaic and retrieve the acquisition date from each of them. In ArcMap, you would find this by opening the attribute table and clicking through the little arrow within the raster field for each record. import arcpy arcpy.env.workspace = r'D:\example.gdb' rows = arcpy.SearchCursor(r'D:\example.gdb\my_mosaic', fields='ObjectID') ObjectIDs = [] for row in rows:      ObjectIDs.append(row.getValue('ObjectID')) for ObjectID in ObjectIDs:      raster = 'my_mosaic\Raster.OBJECTID = ' + str(ObjectID)      aquisition_date = arcpy.GetRasterProperties_management(in_raster=raster, property_type='ACQUISITIONDATE')      print 'Aquisition Date = {}'.format(aquisition_date) Hope this helps someone out. ... View more

I am trying to create a Python Toolbox tool which is supposed to add two fields  State  and  StateAbb  to selected Shapefile from selected combobox. How I can add a Combobox which contains a list of US states to the Tool? import arcpy class Toolbox(object):     def __init__(self):         """Define the toolbox (the name of the toolbox is the name of the         .pyt file)."""         self.label = "states"         self.alias = "states"         # List of tool classes associated with this toolbox         self.tools = [states] class states(object):     def __init__(self):         self.label = "states Tool"         self.description = "Add and Insert Value from Combo"         self.canRunInBackground = False     def getParameterInfo(self):         param0 = arcpy.Parameter(             displayName="1- State Street Layer",             name="in_features",             datatype="GPFeatureLayer",             parameterType="Optional",             direction="Input"         )         params = [param0]         return params     def execute(self, params, messages):         """The source code of the tool."""         arcpy.AddField_management(params[0],"area","TEXT","#","#","#","#","NULLABLE","NON_REQUIRED","#")         arcpy.CalculateField_management(params[0],"area","!shape.area@squaremeters!","PYTHON_10.3","#")         return‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍ ... View more

Hi, I am trying to use arcpy to run a select by location and export the resulting selection (intersect) as a new feature class. I have set my workspace to the gdb containing the featureclasses I want to select by, and the features I want to select are a tile index feature class called 'tile_index'. The code will run but doesn't have any output. Any help would be great. Thanks! # Import arcpy and set path to data import arcpy arcpy.env.workspace = r"C:\folder\Data.gdb\" # Get the list of the featureclasses to process fc_tables = arcpy.ListFeatureClasses() for fc in fc_tables: arcpy.SelectLayerByLocation_management('fc', 'intersect', 'tile_index') arcpy.CopyFeatures_management(fc_tables, r"C:\Data.gdb\%Name%_selection")‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍ ... View more