A site-package created by Esri to expose many ArcObjects to Python.

learn more… | top users | synonyms (1)

1
vote
1answer
93 views

Feature to Line on feature selections with ArcPy

I'm trying to collapse parallel polylines (dual carriageways in a shapefile of roads) to single centrelines. I'm aware of cartography's dual lines to centerline tool, but I find Feature To Line (Data ...
2
votes
0answers
874 views

Fixing “spatial index grid size is invalid” without Recalculate button

I've got a python script that is connecting a squence of points to make lines, and putting them into a feature class (based on answers to my previous question). It works wonderfully on a small area ...
3
votes
3answers
688 views

Runtime error : ERROR 000358: Invalid expression using SelectLayerByAttribute in ArcPy?

I cannot for the life of me persuade SelectLayerByAttribute to work (I need to automate this for a complex script). Working in ArcMap's python console on already loaded shapefile, the format below: ...
2
votes
1answer
180 views

Reporting Engines used with ArcGIS Server

I'm curious what others are using to build the more elaborate reports out of ArcGIS Web API apps? By elaborate I mean ones that include lots of dynamic charts and tables, multiple maps/data frames ...
0
votes
1answer
749 views

Can an arcpy.da.SearchCursor be used on a dataset residing in a ParcelFabric?

I'm using ESRI's LocalGovernmentMI.gdb data model and am managaing parcel data in a ParcelFabric dataset. I'm trying to use a search cursor on the ParcelFabric_Parcels dataset but I recieve this ... ...
8
votes
1answer
221 views

Difference between python window and toolbox

Are there differences in performance or other potentially critical area between running a python script in the python window versus running it from the toolbox in ArcGIS 10.0? I am asking in cases ...
1
vote
2answers
101 views

Select individual lines from feature class, convert to unique rasters: “raise e” error?

I have a feature class with 5 lines in it, and need select each one and turn them into its own raster -- for example, line 1 is raster 1, line 2 is raster 2, etc. This is the python script: import ...
2
votes
2answers
577 views

Run Python child script using Python Add-In button class?

I have a Python script which I want to execute using Python Add-In button class. Right now, I am using following: class child(object): """Implementation for Toolbar_addin.button2 (Button)""" ...
13
votes
1answer
371 views

Watermarking photos using their geotag and create a shapefile

I have geotagged photographs and I would like to place a watermark of the photos location on the front for easy reference as well as creating a shapefile from the coordinates. Does anyone know of any ...
0
votes
1answer
864 views

UnboundLocalError: local variable referenced before assignment

I have following simple function to get percent values for different cover types from a raster. It gives me following error: UnboundLocalError: local variable 'a' referenced before assignment which ...
0
votes
0answers
257 views

python script to calculate and return values based on several conditions

I need to calculate and return the value "continuous" to those records in a polygon feature class with species records aggregated to a UTM grid considering the attributes are species name, grid code, ...
2
votes
1answer
1k views

How to use CURRENT map document in Python tool?

I am attempting to use this code in a tool that I am working on: mxd = arcpy.mapping.MapDocument("CURRENT") df = arcpy.mapping.ListDataFrames(mxd)[0] XMIN = df.extent.XMin YMIN = df.extent.YMin XMAX ...
3
votes
2answers
517 views

Create line from two points, two different feature class

I'm attempting to automate this in ModelBuilder in ArcMap. I have one feature class with one point (Start) and one feature class with multiple points (Destinations). I want to iterate through the ...
4
votes
2answers
304 views

Accessing arcpy functions from IronPython

I made a few python scripts to automatically optimize and publish my data.. Now i'm thinking about writing a .NET program to manage and run these scripts: the obvious way is invoking them in a ...
0
votes
1answer
994 views

How to insert values from one table into another?

I am trying to write a script that iterates through each row of a table, calculates for this row something. The result of this calculation is finally stored in another table (with just one row). Now I ...
3
votes
1answer
220 views

How to make multivalue input script run from a toolbox?

I have a working python script: import arcpy sdeconnection = arcpy.GetParameterAsText(0) layerfiles = arcpy.GetParameterAsText(1).split(";") for layerfile in layerfiles: print layerfile lyr ...
2
votes
1answer
312 views

How to read XY, get raster value and then update field?

I've written a script to run through a point layer, using the SearchCursor in the data access module and then read the XY values. Within the with statement, I then use GetCellValue to get the ...
1
vote
1answer
194 views

Problem with calculating the total cell values

aa= arcpy.RasterToNumPyArray("water_depth") sum = numpy.sum(aa) print sum -2933737 Why I am getting negative values ? In my raster there is no any negative ...
2
votes
1answer
308 views

Arcpy Network Analyst solver error

Hello GIS Stack Exchange, I am finding it difficult to load locations to sublayers using python in ArcGIS 10.0 network analyst Vehicle routing problem. I'm also having some trouble debugging my ...
0
votes
0answers
29 views

using python and arcpy , how can I compute the direction and angle of a line segment? [duplicate]

if start_point_x < end_point_x and start_point_y > end_point_y: slope = ((end_point_y - start_point_y)/(end_point_x - start_point_x)) radian = math.atan(slope) degrees = ...
2
votes
0answers
178 views

Different results from Spatial Analyst GP Tool and Python

I am writing a script that has to subtract one raster from another. The rasters I have represent 1) Parking Lots (1 = Parking Lot, 0 = not Parking Lot) and 2) a buffer around the Parking Lot (1 = ...
0
votes
1answer
251 views

arcpy.setValue for Condition from Dictionary

Hi: I am trying to create a function to update multiple fields based on different criteria. I want to pass the field name and condition thru' a dictionary (please see the function description in the ...
0
votes
2answers
447 views

Add a time dimension in ESRI mosaic raster dataset

I am in the process of creating a script to pull daily .asc files from a ftp server, convert them to a raster format, and push them into a mosaic raster dataset. Ultimately, the raster dataset will be ...
1
vote
2answers
190 views

Set Extents of MXD to new layer data source?

Alright here I go again this forum has been good to me. I add a layer and replace its data with a shapefile I created using the following bit of python: layer = ...
2
votes
1answer
69 views

How to use arcpy.setValue for Title casing?

I am trying to figure out how to use fieldName.title() method while updating rows using updateCursor for multiple fields. I was trying to improve the code of this post to fit my purpose: ...
2
votes
1answer
169 views

Python script to update attributes crashing during loop

I have a script to update a field in one feature class from a selected record in another feature class. This is done through looping through records in one feature class selecting appropriate the ...
2
votes
1answer
163 views

Arcpad checkout to an area

I would like to check out data from an SDE database but for performance sake, i prefer to delete all features outside of my survey area. i've tried to copy features in area from sde to a file GDB ...
1
vote
1answer
105 views

Setting More Than One Workspace

I have a number of tables that contain known values in a field. For example, I have a soil type table with one field in it. That field contains a list of known soil types. I have another table that ...
5
votes
1answer
179 views

Listing ArcSDE versions using ArcPy?

I have an ArcSDE geodatabase with different versions for each user. How can I list each version using ArcPy?
1
vote
5answers
2k views

Arcpy to copy a layer in the ArcMap TOC, rename the copy, and paste back to TOC?

I want to make a copy of a layer in the ArcMap TOC (passed to my script as a Feature Layer), assign the copy a new name, set a definition query on it, and then add the copied Feature Layer back into ...
1
vote
1answer
179 views

Need python code example - setting a combo listbox to Null

I want to be able to set the value of a field to Null using python, but I get an error. I am using arcpy.CalculateField_management Any help would be appreciated. Rob Smith
1
vote
2answers
139 views

arcpy.sys versus sys

I just noticed that in the arcpy module (Esri) there's a sys sub-module. Does anyone know what the difference is in using one or the other? I've been looking around and can't find anyone who uses ...
2
votes
2answers
402 views

Quick way to make a convex hull

I am using Python and ArcGIS 10.1. Is there a function or very quick way to extract points out of point feature class into an array without looping through a search cursor (as I have millions of ...
3
votes
2answers
1k views

arcpy Problem with updateRow() when trying to update fields with UpdateCursor

I have a list of values which I am trying to add to an existing shapefile. The field where the values need to be inserted has been added via arcpy.AddField_management and thus the values of the rows ...
7
votes
2answers
2k views

How to Refresh open attribute table in ArcMap using ArcPy rather than ArcObjects?

I am running the Calculate Field GP tool from the arcpy in ArcMap. When a row value is updated, it does not show up untill I use the Reload Cache tool (Table Options > Reload Cache). How do I refresh ...
2
votes
1answer
320 views

Search cursor stops selecting after two iterations

I have a script which selects an extent from a grid and exports the data frame. import os, arcpy mxd = arcpy.mapping.MapDocument('CURRENT') df = arcpy.mapping.ListDataFrames(mxd,"Layers")[0] ...
5
votes
2answers
874 views

How to create Network Dataset for Network Assistant using ArcPy?

Is it possible to create a network dataset with ArcPy to be used with the network assistant? In the documentation I found the Build Network and Dissolve Network functions, but it looks like both ...
4
votes
1answer
809 views

Using matplotlib to create and export graphs automatically from ArcMap

I am going to start a project soon where, after the data has been processed in various ways, an output jpg showing a graph of the data should be produced. The workflow is as follows: 1. A feature ...
1
vote
2answers
844 views

Can anyone recommend an Arcpy GUI? [duplicate]

Can anyone recommend a GUI for arcpy? So if I want to run my script as an exe with some blank text boxes(or text boxes with default entries), radio buttons, check boxes etc.
1
vote
0answers
290 views

Problems running zonal statistics - not all zones represented

I have been working on a Python script to automate the steps illustrated by whuber here:Create points around the edge of viewshed results I am trying to create a horizon graph illustrating the ...
1
vote
1answer
228 views

How to add layer in Arcscene using script tool

import arcpy mxd = arcpy.mapping.MapDocument("CURRENT") df = arcpy.mapping.ListDataFrames(mxd, "*")[0] addLayer = arcpy.mapping.Layer(r"F:\project\Final\Ground floor\steps.lyr") ...
2
votes
1answer
1k views

How to write point geometries with arcpy instead of gp syntax?

Can someone help me fix some code that simply writes points into a featureclass? It used to work in the older gp. syntax, but I'm having difficulties rewriting it in arcpy for ArcGIS 10.0. In this ...
5
votes
1answer
4k views

How to Export Selected Feature to New Shapefile Using ArcPy?

I currently have a search cursor iterating through a shapefile in ArcGIS 10.1 that selects a feature and runs a viewshed analysis on that feature (and only that feature). What's the easiest way to ...
1
vote
2answers
1k views

How to Add Shapefile with Symbology from Layer File to ArcMap MXD using ArcPy/Python?

Say I have a Shapefile: C:\DATA\points.shp A layer file: C:\SYMBOLOGY\symbology.lyr And a map document: C:\MAPS\map.mxd How can I add points.shp to map.mxd with the properties of symbology.lyr ...
3
votes
1answer
609 views

Why is my simple arcpy script failing? (sets raster cell value to null if below threshold value, ArcGIS 10.1)

As mentioned in the title, simple script to set null cell values below three standard deviations beyond the mean: import arcpy, sys, os #Accept input and output raster inRas = sys.argv[1] outRas = ...
3
votes
3answers
654 views

Help with Python and adding a grouplayer to Arc, renaming it from a folder name, then adding layers to it from that folder

I am trying to use os.walk to go through a directory tree, pull out all the .shp files in it, create a grouplayer in the mxd, rename the grouplayer the folder name, then add the layers from that ...
3
votes
2answers
2k views

How to save currently opened mxd and changes using ArcPy and Python?

Here is what I have so far... import arcpy import arcpy.mapping as map mxd = map.MapDocument() mxd.save() And yes I know that map.MapDocument requires an argument, but I want it to automatically ...
1
vote
0answers
260 views

How to embed a PDF into an Excel spreadsheet? [closed]

This is what I want to do: Create report using a polygon feature class to output areas of polygons using some logic and the ExportReport() function (This I have accomplished) Create a PDF of the ...
2
votes
2answers
229 views

How can I set the settings of an Address Locator within a Model or arcpy?

I am creating a model that processes a large road dataset, then creates an address locator from the roads. The Create Address Locator tool does not allow me to set options like Spelling Sensitivity or ...
1
vote
2answers
189 views

How to get an attribute of the selected feature and pass it into a URL?

As a total Novice with Python, I thought 2 weeks would be enough time to learn how to build some tools for our GIS... I was wrong and I'm running up on a deadline. I am attempting to get a value ...