Questions tagged [arcpy]

A site-package created by Esri to expose ArcGIS Desktop (ArcMap and ArcGIS Pro) geoprocessing, mapping, etc, to Python.

Filter by
Sorted by
Tagged with
1
vote
1answer
2k views

Replace data source of layer in ModelBuilder

After reading through the documentation about MapDocument and Layer classes, I have been trying to use the replaceDataSource method in ModelBuilder to replace the data sources of certain layers within ...
3
votes
2answers
5k views

How should I go about calculating the centroid of several lat long points in python, and perl?

Calculating the centroid several time on a number of geographical points. I was wonder is there a perl or python module that could make my life easier when working with large datasets of lat long ...
2
votes
2answers
942 views

How can I “select by attributes” based on membership in py dictionary?

I am trying to write a script in arcpy that checks to see if elevation values in a point file are found in a dictionary, and if they are to produce a new point file with just those entries. Sounds ...
5
votes
3answers
2k views

Using threading module with Arcpy: Manager/Worker architecture

I asked this question on Stack Overflow on how to setup a manager/worker scenario. But I am getting some error when trying to use threading on my Python install with ArcGIS 10 (just the python ...
4
votes
2answers
1k views

Field calculation- Arcpy

I am developing a script to calculate the values of two fields (C and D) based on value of field A (It is a Point feature): A C D 0.2 1 1 0.2 1 2 0.2 1 3 0.4 2 1 0.5 3 1 0.5 3 2 So the idea is n = ...
0
votes
1answer
389 views

ArcGIS Server GP Service - RasterIO.dll crashing ArcSOC.exe

I've been having a terrible time this week turning some very simple geoprocessing scripts into gp services on ArcGIS Server 10 SP 4. In the case of the linked post, I found that using certain raster ...
3
votes
1answer
2k views

ArcPy: Feature class “doesn't exist” after MakeFeatureLayer

I was working on a Python script to analyze the geometries of a feature class and write something out. It worked fine the first time, but gave an IOError each subsequent time. I narrowed the problem ...
6
votes
0answers
707 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 ...
3
votes
5answers
2k views

Having trouble nesting updatecursors

I'm trying unsuccessfully to perform updates on multiple linked tables using updatecursors. The following code works as I would expect: trackRows = arcpy.SearchCursor("tracks","Key_='b2879561-d751-...
7
votes
1answer
605 views

Is there anyway to make GPModels with python scripts execute faster?

I do not know if anyone else has this problem but my GPModels that include simple python scripts seem to take way too long to execute. One example is a model I built which is a simple select feature ...
3
votes
1answer
292 views

Create Array From Selected Features Based on the Order in Which They Were Selected

I need to create an array of features from a selection based on the order in which they were selected. As in: I select feature 5,2,3,4. I need to have an array so I can apply attributes (with python) ...
2
votes
2answers
537 views

Tables in ArcMap 10.0 - are they layers or tableviews

Is a table in ArcMap a layer or a tableview. I want to be able to feed a table into an UpdateCursor via a toolbox script. If my table has a definition query on it how do I check for that with ...
2
votes
1answer
2k views

Adding Layer in current session using ARCPY

I wanted to add a layer through the toolbox using arcpy. The below script works fine through the python console in ArcMap, but does not when executed through the toolbox. The layer flashes for a ...
4
votes
2answers
2k views

In ArcPy, how can I save a clipped raster dataset to memory (not to file)?

I've been trying to clip a larger raster dataset by a polygon extent, where the resulting clipped raster dataset is saved in-memory. So far, my attempts produce vague errors. >>> arcpy....
10
votes
2answers
2k views

Check validity of file geodatabase using arcpy

AS the title suggests, how can I whether a GDB file is valid using arcpy? One approach is, only checking the whether the name ends with .gdb, but that's not a robust approach. Because a normal file ...
4
votes
2answers
5k views

Python method for finding a substring within a string

I converted a KML to a feature class and no longer have access to the symbology set in the original KML. I'm trying to re-create this by creating a new field that stores identifying information ...
4
votes
2answers
5k views

Customizing label features using arcpy

I have a script that creates symbology for a polyline (contours) and then adds it to a .mxd file. My problem is that it picks the “FontName” as the default field to label on the map (see attached ...
1
vote
1answer
600 views

Check multiple feature classes have same spatial reference

As the title says I've several feature classes. I want to check whether they have same spatial reference using arcpy
1
vote
1answer
965 views

How to create a pop-up box if a condition is true in a table? (ArcMap 10)

I'm creating a script that will grab layout data from a table for the current Building Number of the current building my map series is on. It works fine, but I need it to pop up a window if multiple ...
1
vote
1answer
2k views

Using arcpy.mapping.ExportToTIFF() to create dataframe geotiff

Has anyone created a dataframe geotiff using arcpy.mapping.ExportToTIFF() with satisfactory results? My output has poor quality and the georeferencing is significantly off. This example is the ...
6
votes
3answers
9k views

Select Layer By Attribute using loop

I have 273 features in the feature class and i want to select them one by one and use the statement in the following code. At the line: *arcpy.SelectLayerByAttribute_management (fc1,"NEW_SELECTION",...
0
votes
1answer
745 views

Defining projection in arc toolbox (JSON to shapefile) in python

I have a arc toolbox which converts JSON txt file to a shapefile but we have to define the projection. How can I hard code the defined projection so that user don't have to input the projection ? ...
4
votes
3answers
9k views

Add feature layer to display with in a script tool for desktop mapping 'App'

The point of this question is to find a way to programatically change the map extent based on user input. My method involves creating a Feature Layer & Selection, but if you have another (...
2
votes
0answers
114 views

network related issues arising when running an arcpy script

Essentially I wrote an arcpy script that is within a toolbox that I ported over to a different machine to test out after the script worked locally. The script essentially utilizes the psycopg module ...
0
votes
1answer
1k views

Testing if shapefiles intersect from a list using intersect: ArcGIS

I am new to programming and scripting in general, so please bear with me. I have generated a list of the location of all the shapefiles for my workplace. The files are all placed in folders, no ...
1
vote
1answer
162 views

Button that allows project search and zooms to site once executed

I am trying to create a button that will execute a Python script. I have limited Python experience. What we are trying to accomplish is to recreate these steps: Query on project Site and Radius ...
0
votes
1answer
242 views

Insert cursor raises exception on geodatabase

world, I'm having trouble to insert a line geometry into a personal geodatabase (using Python/ArcGIS 9.3.1). Everything works fine if the target feature is a shapefile. My guess is that calling: ...
1
vote
1answer
2k views

arcpy: creating polyline features from the following text file format

I am looking into a way of reading the following file format with python, where 0 0, 0 1, 0 2, ect... is the polyline object number and 0(1) 464736.1645 260940. 098377 are x, y coordinates of ...
3
votes
1answer
1k views

Select Layer by Location Produces Empty Output in Python

I am new to using Python scripts to execute ArcGIS tools. In my first script I am attempting to loop through many Select Layer by Location operations on overlapping feature classes. I want to create a ...
1
vote
2answers
455 views

ArcGIS Server GP Service: How to create a txt file or rename a dbf to txt in the “%SCRATCHWORKSPACE%”

My end goal is to get an excel (I'll probably just settle for .csv) file loaded from a silverlight app into my "%SCRATCHWORKSPACE%" for my gp service. I will be linear referencing the data onto a ...
1
vote
1answer
648 views

Generate MXD layer info report

I'd like to generate a report about MXD layers for a handful of MXDs. I want the report to display their name, workspace path and scale range settings. I can get the first two with ArcPy but I didn't ...
3
votes
2answers
2k views

Python and Data driven pages - Advanced use

I need to make a number of maps where only one input changes (a layer with the range of a radio tower) and I want to add the layer, apply symbology, zoom to it, change the title to include the name of ...
1
vote
1answer
2k views

arcpy.Delete_management not deleting

I'm struggling with deleting an mxd in a for loop. My code is: import arcpy, glob, os, datetime, time from time import strftime for filename3 in glob.glob(os.path.join(folderPath, "*.mxd"...
1
vote
1answer
1k views

Index out of range error when cleaning up variables

I'm running a script that parses points from a flat database structure into individual feature classes with related tables. A search cursor runs through and stores each field's data in a variable ...
2
votes
1answer
494 views

Use arcpy.SearchCursor with raster

How can I efficiently subdivide one raster into multiple rasters using the arcpy.SearchCursor? For example if I have a slope and I was to subdivide into 3 rasters: slope1 with values between 0 and ...
0
votes
1answer
146 views

Issue with branching model

I am having an issue with a branching model when the iteration tool is used. The test code/scripts/models are in Google docs or arcgis forums It runs and creates both versions of the process whereas ...
6
votes
1answer
5k views

ArcGIS License - ArcInfo level license set during python script execution vs via Desktop Administrator

We have an ArcInfo floating license available. Can I check out an ArcInfo level license via arcpy. Here, from the arcgis help, it says you can import a license level for stand-alone scripts. If a ...
0
votes
1answer
706 views

Does CopyFeatures from in_memory via Python script tool cause General function failure for you?

The Python code below looks pretty straightforward. import arcpy if arcpy.Exists("D:/temp/test.gdb"): arcpy.Delete_management("D:/temp/test.gdb") if arcpy.Exists("in_memory"): arcpy....
3
votes
3answers
4k views

Geoprocessing with ArcGIS Server 10.0 - %scratchworkspace%

http://help.arcgis.com/en/arcgisdesktop/10.0/help/index.html#/Key_concepts_for_geoprocessing_services/002v00000002000000/ I'm trying to have a new GP Service arcpy.AddMessage() the scratchworkspace ...
3
votes
1answer
221 views

arcpy pydev 3rd party toolbox intellisense

I am just newly started to look at arcpy and i see that it has good intellisense for system toolboxes by default and also if you import a custom toolbox - the intellisense gets update also - however ...
1
vote
1answer
1k views

Dynamic Text in ArcMap 10.0 and arcpy - getting user name in specific format

I need to put in a specific text into a text element. The initials of the user who built the map. With arcpy I am trying to set the text element with dynamic text. If I put <dyn type="user"/&...
6
votes
2answers
2k views

Creating geodatabase from CSV using python

I have a file with weather data (daily) for multiple weather stations for multiple years. I am looking for some python script to automate the database creation process and its interpolation on a daily ...
7
votes
1answer
3k views

Python-arcpy : How make feature list from gdb and value list from field and use them in gaLayer function?

I'm not an expert in python, however I have to write a script to do geostatistical analyses with the GACreateLayer function from Arcgis. I have several data (>2000) and I want to use list of features ...
5
votes
2answers
612 views

ArcMap Draw Camera Range with ArcPy

i am working on some camera data. I have some points which consist of azimuth, angle, distance, and of course coordinate field attributes. In arcmap I want to draw shapes like this: The shape is pink....
4
votes
2answers
1k views

Add a .lyr file to multiple mxd's within a specified folder using python

I need to create a python script that will look in a certain folder or workspace, and add a certain .lyr file to each mxd in the folder. I am able create a python script that adds the layer by ...
6
votes
2answers
4k 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, ...
2
votes
1answer
14k views

How to create a list and append objects to it through a loop

Still struggling with this script. Now I need to create an arpy.AddMessage that says "Projected: with the list of feature classes that were projected in the loop" i.e. Projected: filename, ...
3
votes
1answer
4k views

How to write a script that re-projects vector datasets in a folder?

This is probably a novice question, but I am a novice with python. I am trying to write a script that re-projects vector datasets in a folder. However there are rules in which to do this. They are: ...
4
votes
3answers
2k views

Questions on smooth lines on soil polygon?

In a couple of weeks I am going to do QA/QC on soil polygons and I'm wonder if there is a way for me to run a script or a tool box that allow me to find the jagged lines ? Alternative, my plan would ...
4
votes
1answer
1k views

Can I delete only tables, or only objects sharing a string of text, from a geodatabase?

I've got about 1000 tables in a geodatabse that I need to delete. They are named IntersectedBuffers_1, IntersectedBuffers_2, etc, and they're the only tables in the database. Could someone please ...