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

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2
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1answer
496 views

Standalone Python script to split a polyline with a point layer

I have a polyline layer and a layer of points that are on top of the polylines. I do not have the ArcGis advanced license so I can't use the Split Line at Point tool. Can someone help me with a ...
2
votes
1answer
314 views

Python toolbox - keep parameter value updated after re-altering parameters

I am writing a Python toolbox with (among other) 3 parameters: 2 boolean (check boxes) and 1 string. The string parameter's properties depends on the 2 booleans' value: If at least the first boolean ...
2
votes
2answers
157 views

definition query with 3 plus variables to loop with python and save layer files

I have a script that takes an input feature class and uses a field within this class to create a definition query for each unique field. A question on how to do this is listed below saving layers for ...
2
votes
1answer
78 views

Replacing layer ArcSDE connection

I am very new to using Python... I have an MXD with all of my layer files in it. They are grouped by category etc. Each layer file references a dataset within my SDE. My SDE has two different ...
2
votes
1answer
152 views

problems overwriting files in ArcSDE with python script

I'm having a great deal of difficulty overwriting files when using ArcSDE. The usual 'arcpy.env.overwriteOutput' method doesn't seem to work. When I run this script: import arcpy from arcpy import ...
2
votes
1answer
113 views

Simple Folder to folder batch python script

I am writing script to take shape files from a folder to Buffer it to given distance to Output folder with same name as input files. Here are block of codes. # Name: Buffer_multiple file.py # Usage : ...
2
votes
5answers
224 views

Create Statewide Hydrologic Soil Group Map

This may be better for Engineering? Not sure. Background: Previously I have downloaded SSURGO soil data for the state of Pennsylvania by downloading each county and merging the shapefiles. I then ...
2
votes
1answer
86 views

Multiple Ring Buffer in ArcPy Generates Single Ring

I'm running a simple multiple ring buffer using ArcPy. My goal is to generate a multi ring buffer for each pond in my dataset of 50,000. Here's the line of code: ...
2
votes
2answers
458 views

Accessing multiple shapefiles in folder using Python and ArcGIS for Desktop?

I have been asked to create a custom script to reproject shapefiles (different projections) from a folder, but can't contain values such as filenames and path names to access them. I have started ...
2
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1answer
1k views

Using Python add-in wizard with ArcGIS 10.3 for Desktop?

I'd like to create an add-in for ArcMap (ArcGIS 10.3) using Python. Unfortunately, the wizard does not seem to have been updated for 10.3, which is the only version Esri provides for download at ...
2
votes
1answer
237 views

Python tool won't stop running— Not an infinite loop issue

I'm having trouble with a python script. It is essentially a near duplicate of another script which is running fine-- it is using different files, but apart from that the tools used and the order in ...
2
votes
1answer
754 views

Using ArcPy to Read from Excel Spreadsheet to Python Dictionary

How would I go about creating a script that reads a specified excel spreadsheet and places the values in a dictionary? I have read about the xlrd library and how the library in such endeavors to read ...
2
votes
2answers
588 views

Cannot convert string to int using ArcPy Calculate Field

When I load a csv file to join with ArcPy, it converts all string fields that are numeric to integers. Therefore, I have to add another field within the feature class that I'm using for joining that ...
2
votes
1answer
252 views

Using ArcGIS model to batch export set of layout view as JPEGs?

I have a large number of layout views I would like to export as JPEG maps using ArcMap 10.0. The layout view is based upon a user defined grid. Normally what I would do is manually select a grid, ...
2
votes
3answers
1k views

How to update the Z value using an UpdateCursor?

I have created the following script to mimic the ArcGIS 3D Analyst tool, FeatureTo3DByAttribute, which creates a 3D copy of a 2D feature class and sets the Z to a specified attribute. import arcpy, ...
2
votes
1answer
127 views

Creating Branching Python Script, Based on Whether Feature Classes Exists or Not?

What I would like to do is create a script that checks the existence of a feature class and, depending whether it does or not does, skip to different process. This would need to be implemented in ...
2
votes
1answer
407 views

How is the Python IDE aware of arcpy?

I'm using PyCharm 4 for some Python scripting. When I type import arcpy I can immediately start using items within the arcpy namespace, like the environment & workspace objects. How does the ...
2
votes
1answer
182 views

Geoprocessing service fails if output paramter is empty

I have made a network isolation model that lets the user pick a point on the network to simulate a pipe 'failure'/section that needs to be isolated and finds all valves that need to be turned and ...
2
votes
2answers
665 views

Add multiple Layer files in subdirectories to mxd using python

I have more than 300 layer files located in many sub-Folders and sub-sub-Folders. All Sub Folders are located in one large directory.I read Use python to add layers to TOC and I try, with arcpy, to ...
2
votes
1answer
206 views

How to read X,Y from mouse click in Python

I am looking for some advice… I am trying to build a tool that will precisely (10digit, eg: AA1234512345) identify British National Grid (BNG) by clicking on a map. The ArcGis default tool can only ...
2
votes
2answers
368 views

Select Layer By Attribute to be used in for loop

I'm trying to iterate through a feature class and select each feature one by one by using the OBJECTID field. When I use a single value, the SelectLayerByAttribute works, but how do I compare the ...
2
votes
1answer
217 views

Arcpy delete rasters in a folder

I'm working with rasters, there are 3 folder (input, query, result). In the input folder are the basic rasters. The user can choose between these rasters, the code can collect the rasters into the ...
2
votes
2answers
602 views

arcpy.da cursor : iteration not started

I am trying to convert cursors written in 10.0 to use the new arcpy.da module in 10.2.1. If I step through the code in debug mode, it steps into the for loop; however, when I attempt to run the code I ...
2
votes
1answer
117 views

Converting geographic units with ArcPy

I am trying to compare a set of point features to the centroid of a single feature polygon using ArcPy. The problem is that the polygon generates a set of XY coordinates in meters, whereas the set of ...
2
votes
1answer
58 views

arcpy cursor not accepting float(Inf)

I have a vector layer in which I have added some fields of type 'float' using arcpy.AddField_management. I'm performing simple calculations between those fields using update cursors but the problem is ...
2
votes
1answer
142 views

Subtracting columns (that include null values) in ArcMap Field Calculator

I’m desperately trying to run a very simple command where I subtract one column with others. However the problem is that some rows have NULL values, therefore the result of subtracting is also NULL. ...
2
votes
1answer
276 views

Tutorial on creating python toolboxes?

I've done the ESRI training: Creating Python Toolboxes Using ArcGIS 10.1 but is there anything more in depth? Since VBA is no longer supported in ArcMap 10 and up I'm trying to convert a cross section ...
2
votes
1answer
162 views

Arcpy reclassify all values to same number

Using ArcGIS 10.1 and arcpy, is there a way to reclassify all values of a raster file to the same value (leaving NoData Values as "NoData")? Lets assume that I have no way of knowing what the actual ...
2
votes
1answer
266 views

Exporting results from Select By Location comparisons of each line in one shapefile with polygons in another?

I use ArcMap 10 and I am trying to export multiple selections (a.k.a 'Select by Location') from one file against another. I start by selecting the first line of shapefile A and I want to select all ...
2
votes
1answer
158 views

Setting ArcPy environment variables with Python multiprocessing?

I have a script which uses ArcPy + Python multiprocessing. Are ArcPy environment variables shared between separate Python processes? If I write to arcpy.env.extent from within each process am I ...
2
votes
2answers
352 views

Using Python to move Text Elements for creating multi-page PDF

I have a map document which contains several text elements that I have grouped and am able to programmatically update. These groups represent a page of data. Now I'd like to export this data as a ...
2
votes
2answers
327 views

ArcGIS - Getting Python toolbox to function properly

as the header says, I do have a problem in getting my toolbox to function the way I want it to. In the following my parameter definition is shown, where from I would expect to get only feature classes ...
2
votes
1answer
112 views

Trying to generate a PDF for each feature in a feature class based on an attribute with Python.

I have a feature class of points that represent storm water inlets. I am trying to automate a process that does the following. finds all of the inlets that have a field called "Marker" populated ...
2
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2answers
2k views

Select points within a polygon and update attributes

This seems really simple but I can't get it to work. I have two feature classes, a polygon of sales areas for a city, and point layer of addresses. I want to select the addresses based on the sales ...
2
votes
1answer
478 views

ListRasters based on filename using Arcpy

I am trying to create a python script for ArcMap which calculates the ndvi from two raster images for each RGB/NIR pair in a folder. However, I am unsure how to create two raster lists; one which ...
2
votes
1answer
149 views

How to create Multipart Line in ArcPy?

I am developing some script in where I want to create custom multi part line geometry. For example: I have one array of points a,b,c and second array of points e,d,f. I want to create one ...
2
votes
3answers
2k views

List all Feature datasets & feature classes from a single geodatabase into CSV

I have prepared a python code and I got the following errors: "Parsing error IndentationError: expected an indented block (line 11)" and "Runtime error Traceback (most recent call last): ...
2
votes
1answer
198 views

Is the MakeFeatureLayer temporary location the same as “in_memory”? [duplicate]

From the ArcGIS Desktop Help: The layer that is created by the tool is temporary and will not persist after the session ends unless the layer is saved to disk or the map document is saved. ...
2
votes
1answer
82 views

Using search and update cursors for random number generation

I am having some trouble getting a searchcursor to return a value for each record. The purpose of my code is to scan through a list of records in a field (FieldA) and based on those values populate a ...
2
votes
1answer
197 views

How to SUM field, insert SUM into new field based on FIELD

This is a continuation of my previous question in an effort to build upon it. How to SUM field and then insert into NULL column? Given the examples of my data below, I would like to be able to ...
2
votes
1answer
386 views

Unable to open feature class Failed to execute (RasterToPolygon)

I'm trying yo execute the RastertoPolygon conversion tool in ArcGIs 10.1. I'm executing it through a for loop, then it resulted to an error (Unable to open feature class Failed to execute ...
2
votes
1answer
340 views

Removing last point in polygon geometry using ArcPy?

This polygon was created from a grid of 500 x 500 meters, then Union, Generalize and Dissolve was used to arrive at this geometry, the laspoint not help me, I just want to have points on each vertex. ...
2
votes
1answer
1k views

Merge feature classes in feature datasets

I'm trying to merge a group of like feature classes which are contained within separate feature datasets. I can merge feature classes within a file geodatabase without having issues by creating a list ...
2
votes
1answer
91 views

Batch create maps using arcpy.mapping

I'm trying to create .mxd and PDF outputs for a series of feature classes in an SDE. I'll need to match 2 feature classes (one original, one buffered) in the SDE based on similar file names. The ...
2
votes
2answers
78 views

Selection of lines that lays mostly in defined zone (majority overlap)

I have lines of surface runoff and I need to select the ones that are lying mostly in internal buffer of polygon. I'm trying to make some script in python, but it's very important to make the script ...
2
votes
1answer
810 views

ArcPy script error - NoneType object has no attribute X

I'm familiarising myself with using scripting in ArcMap 10.2 and as part of this I'm using the following to extract vertices from some polygons. ... ... import arcpy ... from arcpy import env ... ...
2
votes
1answer
153 views

Sum count column in raster attribute?

I am a beginner to python coding in GIS. I want to calculate the total number of counts in raster attribute table. In order to do that: I would like to build a attribute table of raster data use a ...
2
votes
1answer
158 views

forLoop & joinField & different names

I have a folder with an output (shapefiles) from an iteration. On this output, I want to perform a join between two attributetables. So far so good. Here comes the tricky part. There are different ...
2
votes
1answer
68 views

What are resources to learn ArcGIS for someone who already knew Python [closed]

I know that there are several resources recommendation questions, however, they are all from GIS people trying to learn Python (for example, here). My situation is the opposite: I have worked ...
2
votes
1answer
132 views

arcpy: join feature class (one to one) and get feature id of each joined object

I am currently spatial joining two feature classes like this arcpy.SpatialJoin_analysis(target_features,join_features,output_features, join_operation="JOIN_ONE_TO_ONE", ...