A site-package created by Esri to expose GeoProcessing from ArcGIS to Python.

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6
votes
1answer
499 views

How to draw shapes with highest possible decimal accuracy

I am trying to read input of lat and long to draw the shape based on condition.The input is standard array of lat and long with 15 decimal accuracy. I am realizing - I am loosing some decimal accuracy ...
6
votes
2answers
1k views

Get shortest distance between two geometries in ArcPy

I'm using ArcPy and using a cursor to step through one polygon feature class. For each of these 'source' polygons, I am creating a SearchCursor to find all polygons in a second feature class that ...
6
votes
2answers
3k views

Segment road network line shapefile into new equal length segments line shapefile?

I would like to subdivide a road network for an entire state into segments of equal length. So, Highway X would be divided into 0.5 mile segments, with a record for each segment, and Highway Y would ...
6
votes
1answer
555 views

ModelBuilder: How to extract data by date, export to separate tables and interpolate tables to rasters

I've been using ArcGIS for a couple years, but when it comes to model builder I've only worked with very simple models. I'm hoping someone that is much smarter than myself can help me in building a ...
6
votes
1answer
223 views

Why do ECWs go missing when exporting MXD to PDF with ArcPy?

I'm trying to export some MXD maps to PDF with arcpy (ArcGIS 10.1). Everything works fine and dandy except for ECW images, which don't appear in the PDF. However, when I execute the same code from the ...
6
votes
2answers
315 views

Increasing search radius of nearest neighbors for Nibble tool?

I am working with a raster map vegetation types. I have about 20 types with unique raster code values that can be sorted into three classes: vegetation types I want to expand using the nibble ...
6
votes
1answer
1k views

Why are results from Python tool not in Results window?

I am relatively new to ArcPy 10. and I want to return the list of feature class from a dataset. I can see them through the message, but cannot see them from the result window. Actually there are only ...
6
votes
5answers
3k views

How to interpolate points along a line in Python for ArcGIS 9.3?

I am building a Python geoprocessing script for ArcGIS 9.3. In the script, I have a simple LINE feature class with one row, one line. How can I use a linear referencing system to interpolate a point ...
6
votes
1answer
83 views

Automatic creation of polygons from Feature Class points in ArcGIS for Desktop?

I have two point feature classes, let's call them A and B. They are well-spaced and the points are non-overlapping: My objective is to create a topology using these two sets of points by connecting ...
6
votes
1answer
203 views

Is setting the env.workspace var necessary for python add-in buttons in ArcMap?

I made a custom add-in for ArcMap (10.2 in my case) and was reviewing my code with a colleague. We're not sure if the setting the workspace is required in the code since the button's script is only ...
6
votes
1answer
235 views

Add raster paths to shapefile with Python (ArcGIS)?

I have a problem and maybe someone is able to help me or give me some hints how to start. Situation: I have a lot of raster and of every raster I have the center coordinate. Out of this coordinate I ...
6
votes
3answers
2k views

Merge Spatially Coincident Features in the Same Feature Class

I need a way to programatically merge grid cells (polygon 15x15m) that are directly on top of each other and add together some of their attributes. I am working in ArcGIS 10.1 with the data stored as ...
6
votes
3answers
617 views

Finding centerline of peninsula?

Given a peninsula stretching north south and the two coast lines connecting in the south, I want to find out which is the place, or rather line, which is furthest away from both coastlines on the ...
6
votes
1answer
258 views

Is it possible to install ArcPy on a server for use in a geoprocessing web application?

I have a website on my intranet and would like to add some geoprocessing tools to it with Python. Many Users will not have Arc installed on their machines, so I think I need to have the scripts set ...
6
votes
2answers
3k views

Installing ArcGIS 10 with Python(x,y)

EDIT 10/20/2011: The problem I was having below was caused by trying to install Python(x,y) after ArcGIS 10. I got a new machine yesterday and instructed IT to install Python(x,y) 2.6.5.3 (has ...
6
votes
1answer
1k views

ArcObjects C#: Create Random Points fails with ERROR 999999: Error executing function

I am having trouble running some ArcObjects C# code that calls create random points. I would not be doing this in ArcObjects, but I am suffering with the same issue using Arcpy as seen here: ...
6
votes
2answers
157 views

Calculate walking time on existing paths (hiking) in ArcGIS

I would like to calculate the walking time on existing paths in ArcGIS (hiking trails). I have a dem of my area (30px cell size) and I consider that the slope is the main factor which affect the ...
6
votes
1answer
81 views

Is the column order returned by arcpy.ListFields() always the same?

I'm using arcpy.ListFields() to get a list of fields in my Feature Class. Based on my limited testing of several geodatabases and tables, the order of fields returned is the field order specified in ...
6
votes
1answer
81 views

Ordering tool display within a Python Toolbox

I have created a python toolbox containing a number of classes which define the various tools within. As these classes are part of a workflow in which the tools are to be executed sequentially using ...
6
votes
2answers
220 views

How does the deactivate function of an ArcGIS Python Add-in Tool work?

I have not been able to figure out how the deactivate function of a Python Add-in Tool works in ArcGIS. The help page that mentions the function, and that it 'causes the tool to no longer be the ...
6
votes
1answer
4k views

ArcGIS ERROR 000824: The tool is not licensed in arcpy

I try to run the Zonal Statistic as a Table through arcpy and it gives me: ERROR 000824: The tool is not licensed. Here is the doc for the function: ...
6
votes
1answer
1k views

ArcPy script causing python.exe to stop working (memory issue?)

I have a script written in Python that uses ArcPy to create maps of the kernel densities of thousands of datasets. Each dataset is relatively small, but there about 50,000 sets in total. When I run ...
6
votes
1answer
634 views

Using python, how do you “reload cache” an opened Attribute Table

Used python to update a shapeFile through cursors. The Shapefile is updated, but there could be an opened Attribute Table. Manually you can hit "reload cache" to update the Attribute Table and see ...
6
votes
3answers
2k views

Projecting selection from large data set using ArcPy?

I have a large data set X(x1-xn) from which I must select consecutively the attributes A(a1-an) from X.fieldsSRC or X.fieldDST and project the selections. I have a functioning arcpy script that does ...
6
votes
1answer
388 views

Accessing graph in ArcMap document using ArcPy?

I am trying to access an existing graph in an ArcMap document with arcpy. I know how to create a new graph with arcpy, but I cannot seem to figure out how to access an existing graph in an ArcMap ...
6
votes
1answer
520 views

Arcpy hanging on Linux

I am having issues getting arcpy to run correctly on Linux Red Hat. I solved some earlier problems which appeared to be related to permissions on the init_server file. Now that si resolved, when I ...
6
votes
3answers
205 views

Batch merging shapefiles from different folders, different subfolders

I tried some of the scripts I found but none worked so far. What I am trying to do is batch merging hundreds, maybe thousands of shapefiles from different folders/sub-folders into a single shp or ...
6
votes
1answer
367 views

How can I exclude a field on a table from being copied?

I have a query "layer": >>> r = arcpy.MakeQueryLayer_management(r'C:\path\to\connection\file\connection.sde', 'TEST', 'SELECT T.ID AS OBJECTID, T.* FROM MY_TABLE T WHERE T.SOME_COLUMN = 1', ...
6
votes
1answer
643 views

ArcGIS Desktop 10.1 SP1: how to install/use additional Python modules?

I'm currently working on a project where I have to identify geomorphological features in a digital elevation model. Since the aim is to have a single ArcGIS Toolbox integrating all processing steps in ...
6
votes
1answer
1k views

How to add layer with ArcPy and retain feature class metadata (like Credits) in layer properties?

I have multiple feature classes in a geodatabase, each feature class has metadata including a Description, Credits, and other information. If I use the 'Add Data' button in ArcMap 10.1 to add one of ...
6
votes
1answer
407 views

Changes in synchronized replica not shown in ArcMap or ArcCatalog without refreshing

I am synchronizing a one-way replica in ArcEditor using Python. I tried adding RefreshActiveView and RefreshCatalog to the code, but I still need to refresh the synchronized database to see the ...
6
votes
1answer
2k views

Comparing extents of rasters using ArcPy?

I am writing a script that takes an input of an Area of Interest (AOI) and then walks through the base directories to find any file that has an extent that intersects with the AOI, clip it and ...
6
votes
1answer
654 views

ArcGIS 10 Linux experience

We have ArcGIS 10 installed on a nice clean Linux box. We have developed scripts to run on the Windows desktop development machines, and modified them to run on Linux. Now, if we run the scripts on ...
6
votes
1answer
122 views

Automate Exporting of Rasters Using Renderer in ArcGIS

It is possible to export rasters in ArcMap by right clicking the layer-> Data-> Export: You can then click 'Use Renderer' check box to ensure the image you export uses the current ...
6
votes
0answers
599 views

Are there any distinct advantages of creating a Python Toolbox over a Custom Toolbox? [duplicate]

I enjoy making different geoprocessing tools to practice Python and to become more familiar with the arcpy modules. I've just been using a Custom Toolbox and then importing the Python script and ...
6
votes
1answer
194 views

What percentage of ArcGIS users are using version 10.1 already?

I'm planning on building an add-in using ArcPy, but some of the functionality I need is only available in 10.1. I want to distribute this add-in and was wondering if making it 10.1 only would limit ...
6
votes
0answers
513 views

Land Classification with Spectral Python (SPy) [closed]

Does anyone have experience working with the Spectral Python module for land classification? The following k-means clustering example takes an iterative approach to classification through pixel ...
5
votes
2answers
3k views

Using MultiValue in Python script tool parameters?

My script works fine with a single feature class selected for clip_fc = arcpy.GetParameter(0) . However when I set clip_fc to MultiValue in the script properties and then select several feature ...
5
votes
6answers
699 views

How to divide a feature class into ranges?

I have a shapefile consisting of around 4000 polygons. The polygons are created from buffering around a similar number of islands somewhere in the Norwegian archipelago. Due to an error in the ...
5
votes
3answers
1k views

How can I have ArcGIS not automatically add raster clip output from Python window to the current map

I have a collection of rasters that I'm writing code to automate clipping based on a user defined shapefile. I am currently doing this in the Python window using the following as the main processing ...
5
votes
2answers
543 views

Split one field into 3 fields?

I need to split the values in a field according to what they represent to be able to do a join on the data. As seen above I have a ID field that needs to be split into the following: The ID consist ...
5
votes
4answers
7k views

How to get all field names from table using arcpy.ListFields?

I have a table: , Script at ModelBuilder's "calculate values": Expression: a("%path%") Code BLOCK: def a(path): fields = arcpy.ListFields(path,"FID_*") for field in fields: return ...
5
votes
2answers
6k views

Change Symbology of layers from within ArcMap

In an active ArcMap session - I want to change the symbology of a layer which is repeated multiple times in the mxd. Can I do this? The basic code I have for getting the layers is below. This is ...
5
votes
2answers
3k views

What is Python equivalent of ModelBuilder's Iterate Feature Selection?

My data consists of two featureclasses: Points = points representing trees Polygons = Polygons representing % canopy area by area. Each polygon in the FC has a % canopy measurement in the ...
5
votes
2answers
2k views

How to get an extent for Raster using python

I have to get an extent of a given raster so that I can save it and use the same to clip another raster with that extracted extent. As of now I am stuck in the extent part. import arcpy from arcpy ...
5
votes
3answers
1k views

Checking for number of shapefiles in directory using Python?

I want to test: to see whether or not ONE AND ONLY ONE shapefile (which will be based on a filename wildcard) exists in a directory. Add these shapefiles to a list Use this list variable as an ...
5
votes
4answers
3k views

Exporting list of Feature Classes to CSV using ArcPy and Python?

I am successfully using the follow script import arcpy from arcpy import env import os env.workspace = ("WORKSPACE") fcList = arcpy.ListFeatureClasses() print fcList to export feature class names ...
5
votes
4answers
4k views

Searching directories and subdirectories to perform intersects and clips using ArcGIS Desktop?

I'm trying to develop a tool using ArcGIS 10 that queries our company's data stores for any data that intersects a feature. So that when we acquire a new property we can run this tool and it will ...
5
votes
4answers
3k views

Automate Projection of multiple shp files using ArcPy

I have been trying to create a Python script that will convert all shape files within a folder from GCS WGS 84 to Web Mercator. Below is the code I have so far but what I'm struggling with is how to ...
5
votes
1answer
388 views

Determining Shape Area Field Name

I'm dealing with a varierty of spatial polygon files (shapefiles, file/personal gdb feature classes, sde feature classes (some with spatial views)) and depending on the file type, I get a mulittude of ...