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

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730 views

How to check whether a fc is registered as versioned or not using python

How can I check whether or not a feature class is versioned using python? I'm trying to register feature classes using a python script. Before I do this I need to check whether a feature class is ...
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1answer
5k views

How to access data from a selected feature in ArcGIS 10?

First to describe my problem as I see it. I've been asked to design a tool that will take a selected features attributes and copy it out to an output table, with each successive selection and ...
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2answers
197 views

Download data via a ftp server using polygon features

The attached script loops through the features of a polygon featureclass and uses that attribute information to download particular files via a ftp server. The script works great for downloading ...
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2answers
539 views

Make Buffer like Offset in Arcpy

I would like to make a buffer for a polyline and get as Output a Polygon with the same angles as the polyline, having not arcs, like in ordinary buffers. i tried the FLAT option in arcpy, but it's ...
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2answers
493 views

Correct usage of a counter using arcpy.da.UpdateCursor

In the Python code inside a Calculate Value tool in my model, I have the following: getNum("%Selected Features%") def getNum(ftr): lst = [4, 11, 15] #values for SQL expression x = 20 fields ...
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1answer
93 views

Is there any restriction on file size while using arcgis tool box or arcpy methods

I am working with ArcToolBox's tools and their python supports. I found there is some restriction on file size of shape files/feature classes etc. It makes me interested to know about is there any ...
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1answer
465 views

How to use a search cursor on a joined table in ArcMap?

I'm struggling to get a search cursor to work on a joined table view. I've used search cursors before, but never on data that has been joined. Arcpy keeps saying that some of my joined fields don't ...
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2answers
606 views

arcpy - how to check if a domain contains a particular coded value?

How can I check if a domain contains a particular coded value? How to check if domain already exists? shows how to verify whether a domain exists in a geodatabase. However, I can't see how to check ...
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2answers
1k views

arcpy.UpdateCursor for multiple fields

I've hit a wall trying to loop through multiple fields with arcpy.UpdateCursor. I have a list of files (2) with multiple fields (10-15'ish) that have its own error check in SQL, and an error value to ...
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2answers
4k views

How to clip a vector feature to the extent of an existing raster dataset using arcpy

I have a clipped raster dataset with polylines (from the contour tool) overlayed (see attached). I am trying to clip the polylines to the extent of the raster dataset, which seems simple enough, but ...
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2answers
1k views

Use arcpy.mapping to list broken data layers?

I want to list all the broken links in all mxds in a server drive. But whenever I try I get an error come up. Can someone use a specific example, say the drive is D drive, how would I put it into ...
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4answers
2k views

Creating perpendicular snapped polylines between an existing point and polyline using arcpy

Here's my situation - I'm working on a project that requires 20,000+ short connector lines be created, each drawn from a point to a snapped location on a nearby polyline such that the resulting ...
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3answers
881 views

arcpy taking longer and longer in a loop

I am looping through an amount of point arrays, creating data on the fly. The features/arrays, are largely similar in size. One thing I have noticed, is that when I start the process, the time it ...
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1answer
493 views

Determining ESRI File Geodatabase release version?

Is there any method in Python, ArcObjects, or the File GDB API for determining the release version (9.3, 10.0, etc.) of a file geodatabase? There is a need to find all of our shared 10.0 version file ...
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1answer
143 views

Is there a way to use ArcPy module in the python shell that is not with ArcGIS?

I have ArcGIS 10.2 installed on my machine. When ArcGIS was installed, python 2.7.3(32 bits) was also installed. I need python 2.7.5 64bits for some gdal functions. So I installed python 2.7.5 64bits ...
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1answer
222 views

How to select specific row in attribute table using ArcPy (without iterating through whole table)?

I am using ArcGIS 10.2 and have assumed until now that it is possible to select a specific row in an attribute table. However, I can't seem to find a way to do this. The only available methods seem to ...
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3answers
4k views

Why can't I import arcpy?

>>> import arcpy Traceback (most recent call last): File "<interactive input>", line 1, in <module> File "C:\Python27\lib\arcpy\__init__.py", line 21, in <module> ...
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1answer
786 views

How to keep spatial reference using arcpy.RasterToNumPyArray?

I am using ArcGIS 10.1, and want to create a new raster based on two preexisting rasters. The RasterToNumPyArray has a good example which I want to adapt. import arcpy import numpy myArray = ...
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2answers
194 views

Using newly created features in the next part of a python script

Good Afternoon I am trying to write a python script which buffers a large number of features from a geodatabase (but not all) and then dissolves the newly created buffer shapefiles together. ...
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1answer
1k views

Copy a polygon geometry in Arcpy

This to me sounded very simple so I am probably missing something basic here. What I need to do is to create a copy of a polygon shapefile to a new shapefile with slightly different attributes. Where ...
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1answer
2k views

How to programmatically add shapefile to data frame in Arcmap

I have a toolbox with python script which creates a shapefile from JSON txt file, but it does not show the generated shapefile in arcmap, i have to add it from the output location. What code shall I ...
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1answer
1k views

Is there a way to delete a raster using arcpy / ArcGIS 10.0?

I'm trying to find a way to delete a raster dataset (in any format) using arcpy. As it is now I have been writing custom functions for each file type (eg, delete directory and pyramids for grids, ...
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2answers
2k views

How do I calculate a weighted centroid with respect to a raster, e.g. population weighted centroid

In ArcGIS 10.0, how do I calculate the weighted centroid of a collection of polygons, where I want the weight to be a raster layer. In particular I am using a raster of population counts and would ...
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2answers
153 views

Is there a way to refresh imported modules in a ArcGIS Python Toolbox?

When using a python toolbox (.pyt) in ArcMap, I'll typically follow a pattern where the .pyt file itself is simply a wrapper to collect input arguments and define the tools themselves. Supporting ...
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268 views

How to do a separate Python installation with ArcGIS?

I see a lot of threads asking how you can have a separate Python installation (e.g. the Anaconda or Python XY distribution) and get it to work with arcpy, while not 'breaking' ArcGIS at the same time. ...
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1answer
1k views

How to Make a New Shapefile Based on Attributes of an Existing Shapefile?

In my last post I had an issue where I wanted to create multiple shapefiles based on only one attribute field (years). How to do it was answered in that post. I want to make that tool more dynamic so ...
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1answer
303 views

Good practices for storing connection info while deploying geoprocessing tool on Server

I have a geoprocessing tool written in python. It will be deployed on ArcGIS for Server 10.1 as a GeoProcessing Service and it's processing workflow includes some manipulations with data in SDE ...
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2answers
557 views

Problem with the where clause in ArcGIS when dealing with variables

I am writing a python script for ArcGIS. I have an input feature class which contains multiple pipelines which is saved as a variable InputPipeline. I would like to iterate through the pipelines and ...
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2answers
714 views

How to check if domain already exists?

I am trying to check the existence of domains in my file geodatabase which contains 4 domains (automatically populated after I created some annotation feature classes). My code is as follows: import ...
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2answers
636 views

Create a polyline buffer with Arcpy

I'm trying to write a python script with ArcPy that draws arcs and I've achieved something with creating a buffer and then clipping it with a bounding box so I only keep the length I need (I thought ...
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2answers
1k views

Using SearchCursor to access & export values in a raster table

I am desperately trying to export the values in a raster table to a .txt file. I've seen some other folk post about this, but for some reason can't get the code to work in my case. I have a raster, ...
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2answers
1k views

Calculating slope cell-by-cell in ArcPy

I am relatively new to the ArcGIS-Python environment and want to calculate elevation raster slope. But it says "ValueError: setting an array element with a sequence". Below code is what I have. Any ...
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1answer
3k views

Arcpy cursors, WHERE clauses, and date/time fields

I'm having trouble making a selection of rows that meet certain date criteria using my arcpy.UpdateCursor(). I need to update records in a field in a geodatabase table with an ascending value based on ...
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1answer
2k views

Create a definition query for groups of layers: Is it possible?

I have a large number of groups created, with each group having many layers. I have looked for a way to set a definition query for all the layers in each group but haven't found anything. Is it even ...
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4answers
5k views

How to use Arcpy UpdateCursor to update a field?

This should be simple but I've spent days trying everything to get it to work. I need to update a field in a layer based on two other fields. I can't even get it to update based on one field. Could ...
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2answers
129 views

What are the alternatives to ArcMap's Report Wizard?

I have a polygon layer which has lots of attributes, and I'd like to create a report template which summarises these attributes for individual polygons. That is, the user will select a polygon from ...
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1answer
142 views

Arcpy Pythonaddins Equivalent of arcpy.GetParameterAsText

I've build a neat little search arcpy script. The user opens any mxd, zooms to a location, chooses a corporate fGDB, and runs the tool. The user gets a list of all the populated feature class that ...
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1answer
228 views

data driven pages format

I have an issue, but I don't even know the terms needed to search for an answer. I'm exporting the pages to png files. The pages are divided by lots. Each page has a label with the lot number. In ...
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2answers
404 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 ...
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5answers
706 views

How to add Radio Buttons to Python Script tool dialog?

I have 3 Point shapefiles for 3 species that contains the accession points of each. The user needs to specify only one species at a time. I need to write a script tool for adding the selected Point ...
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1answer
479 views

problem with “Con” conditional expression

I created a python script where I use Con (Spatial Analyst). Till now I passed the where clause value as value>1000 and it worked fine for me. But recently I found some raster on which Con ...
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2answers
2k views

How to clip/export multiple selected vector layers in a map to extent of another raster/vector layer in ArcGIS?

Is there a way to clip/export selected vector layers (more than one) in a map to the extent of another raster/vector layer at a time?? in Arcgis or any other software. I am using Arcgis10. I am ...
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3answers
488 views

How not to Copy Features when too many would be output?

This question has already been posed to the ArcGIS Geoprocessing forum but I have had no responses there. I have a 3.5 million polygon layer (cadastre) stored in Oracle via ArcSDE. I use a polygon ...
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1answer
719 views

arcpy.mapping.ListLayoutElements() takes longer in a tool than in ArcMap

Has anyone else noticed that accessing elements from arcpy.mapping.ListLayoutElements() through a tool script takes longer than within ArcMap? Whether using a specific name, wildcard or nothing, the ...
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2answers
2k views

(New at Python Scripting) Creating a Loop so i can replace text in page layout in multiple mxds instead of one mxd at a time

I found some code on a website that will perform a search and replace on page layout text elements. Currently you can only do it one MXD at a time. I was hoping to change the code so I can do a search ...
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2answers
126 views

Creating numpy.array with variable number of fields to test arcpy.da.ExtendTable performance?

There was an ArcPy Café blog posting entitled Adding Fields: Performance Tips which advocated: Two approaches to help increase performance when adding numerous fields to a table or feature ...
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2answers
949 views

How to replace arcpy.CalculateField_management with an update cursor?

I'd like to replace this expression arcpy.CalculateField_management(bufferFile, "Shape_Area", "float('!shape.area@squaremeters!')", "PYTHON") with an arcpy.da.updatecursor. The reason for this is ...
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1answer
248 views

What is the most efficient way to get a list of featureclasses from a large ArcSDE database?

I have a SDE DB which consists of 40 feature datasets and around 300 featureclasses. I need to get the full list of all featureclasses whose name does not contain "ARCHIVE". It takes several minutes ...
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3answers
551 views

Convert polyline with Left ID and Right ID to polygons with ID

I have a polyline shape file which contain Left Id and Right ID information and struggling in converting this polyline layer to polygon with ID via arcpy. I am using ArcGIS(editor) license so feature ...
5
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1answer
2k views

Setting Output Parameter in ArcPy for Server Tool

I have published the following script tool (which is wrapped in a model, i.e. just the script tool and all of its parameters) to ArcGIS Server 10. The GP service succeeds when run, but I cannot ...