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

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401 views

Arc10.1: intermittent Error using arcpy.Delete() on temporary rasters

I've been pulling my hair out with an intermittent error when running from either the MS-DOS prompt, PyScripter, or WingIDE. Haven't bothered to check w/in Desktop apps (but a colleague says it's the ...
2
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2answers
1k views

Add value in attribute field using arcpy

I need to add value in a field in attribute table, the value is to be determined on the basis of value in another field in same attribute table but i am unable to deifne value in another field in the ...
2
votes
2answers
521 views

How can I perform an inside clip on a raster file based on another raster file?

I have a raster file that I would like to use to perform an inside clip on another raster file. I have tried using the extract by rectangle tool, but it gives me values ranging from 3.40282e+038 to ...
2
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1answer
667 views

How do I use the SearchCursor where_clause to get a max value from a column?

This is my first time asking a question on StackExchange. I hope I phrase my question and describe my attempts to understand my problem well enough! While working with SearchCursor, I'm trying to ...
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0answers
113 views

Subset a GeoTIFF image into regular grids and extract mean latitude, mean longitude, and mean RGB for each grid

How can I subset a GeoTIFF image with 1000 by 1000 pixels into regular square grids of 50 by 50 pixels (400 grid objects in total); and calculate mean latitude, mean longitude, and mean RGB for each ...
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1answer
694 views

ArcPy SelectLayerByAttribute Error and how to control GP output layer name

I have a rather long script that first references an SDE feature class (non-versioned) to perform an attribute selection based on a SQL selection. I've been unable to figure out why the script will ...
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5answers
1k views

String variable substitution in selection expression

I'm trying to put a variable into a string used to do a selection. At the moment it's like this... expression = "'No_Props' > 5 AND %s < 200 AND 'ST_Ori' >60" % metres_field ...
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2answers
514 views

arcpy.CopyFeatures between file GDBs?

I'm trying to figure out why I can't copy a featureclass from one file GDB to another. I can copy the featureclass to within the source GDB. There's no name conflict in the target GDB. I don't think ...
8
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1answer
242 views

Where to find and share Python geoprocessing scripts? [duplicate]

Where are folks storing and sharing their Python geoprocessing scripts? For example, I know that GitHub has some shared scripts. ESRI is phasing-out ArcScripts, which is still really handy, and ...
3
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1answer
1k views

Change ArcSDE data source for mxds in specific folder using ArcPy?

I've searched all the forums and help and have made progess but recently got an error that has thrown me for a loop - also some mxds are not being changed at all! What I'd like my code to do: Iterate ...
2
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1answer
868 views

Better way to get raster values for a large number of point features?

I have several projects with tree point features (SpecialStatusSpeciesPoint) that contain up to 2,000,000 records. I am trying to record tree height (Hgt) and base elevation (BaseElev) values, based ...
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1answer
397 views

how to add HTML popup in exported PDF map?

I am producing some maps of a point layer using arcpy.mapping.ExportToPDF. Is there a possibility of creating HTML popup for the final PDF based on this link? ...
3
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1answer
537 views

ArcPy merge datasets with slightly different fields

i have many (>15) shapefiles which have slightly differing fields. s1: (Name, age, layer_1, ...) s2: (Name, age, layer_1, layer_2, ...) ... s_n: (Name, age, layer_1, layer_1_extra, ...) I want to ...
1
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1answer
197 views

arcpy update cursor: can't connect to a database table

I am using updateCursor to retrieve some rows from a non spatial table using a connection of type "Spatial Database Connection" (That creates a .sde file) from ArcCatalog. However, it doesn't work, ...
7
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3answers
6k views

Python - formatting path strings and checking if a path exists

I would like to use the following code to determine if a path exists. The path I would like to check is being passed to my code via parameter on a ArcMap 10.0 tool dialog box. The parameters data ...
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1answer
2k views

While looping with arcpy: ERROR 010240: Could not save raster dataset

Hi I am very new to python coding and have been struggling with this for a while I cannot see the reason for this error! Any help will be greatly appreciated. Here is the code that is causing this ...
4
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2answers
3k views

use a selection of features in ArcMap in Python script

I am trying to write a python script and am stuck on the first obstacle. I want the user to select features in ArcMap and then use these selected features in a python script. Is that at all possible ...
3
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2answers
476 views

Explicitly locking a file geodatabase

I need to lock a file geodatabase (or only a single Mosaic dataset) at the beginning of a python script (and release it in the end).. I looked and looked and couldn't find any explicit arcpy command ...
3
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1answer
1k views

Iterating through an numpy array and index to a value in another numpy array

I am struggling to get this code to work I want to iterate through an numpy array and based on the result, index to a value in another numpy array and then save that in a new position based on that ...
1
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1answer
145 views

How do I obtain layout coordinates of features using arcpy?

I just read the topic about Convert point XY to page units XY using arcpy? but I didn't find a solution to my problem. I have a point layer file, I know coordinates in map view, I'd like to know ...
4
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1answer
1k views

arcpy “The table name is invalid”

I wrote a script that, ideally, loads raw .las (LiDAR data) files into a geodatabase, then creates a terrain from the multipoint files that are created. When I run the script though I get: ...
2
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0answers
388 views

Cost Path tool in script randomly throws error

I have a script tool that is creating a least cost path for sets of points using a Cursor. When applied, the script runs great, except every so often the tool is stopped because there is an error in ...
3
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1answer
679 views

How to replicate an unversioned SDE geodatabase to a file geodatabase?

I need to implement a process for creating a file geodatabase copy (a read-only snapshot, essentially) of a production SDE geodatabase without using versioning, adding global ID columns, etc. I cannot ...
0
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0answers
236 views

How to convert shapefile to tpk using python(ArcGIS 10.1)?

I'd like to convert shapefile to tpk using Arcpy.I surf in ArcGIS 10.1 help but i couldn't find any desire reference to help me . How can i convert shapefile to tpk using arcpy ? which function i need ...
6
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1answer
214 views

Python in ArcGIS: How to add a space between upper and lowercase letters in TOC

I'd like to use python to update the TOC by adding a space (white space) for layer names that are like this: "BoundaryBuffer" or "WaterEdge" and replace them with "Boundary Buffer" or "Water Edge". ...
3
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2answers
508 views

scratch files left behind by arcpy.sa.Con

I have a Con() statement that creates two "extra" scratch files during it's processing, but that do not get cleaned up once the operation is over and the output is saved. r=arcpy.sa.Con(elv, ...
4
votes
4answers
675 views

How to rename a file in the output (ArcGIS python)?

raslist=arcpy.ListRasters() for ras in raslist: arcpy.ProjectRaster_management(ras,outfolder2+ras+'_Albers',spatialref2) print ras+' has been reprojected' I was using the above code for ...
2
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3answers
615 views

ArcPy(10.1) distanceTo using dynamic geometries?

I am struggling to get the arcpy point class method distanceTo to function with dynamically generated geometries with a Python addin. I have used the default tool addin function and set self.shape ...
4
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1answer
227 views

How to implement multiprocessing with multiple geoprocesses?

I am relatively new to Python and thought I would give a stab at multiprocessing. I have a script that runs well in IDLE or as an ArcMap toolbox script. After perusing these forums and docs.python, I ...
3
votes
2answers
1k views

Append or merge consecutive line segments (contours) as one single line of the same elevation value

Is there a way using python (ArcPy) or ArcGIS 10.1 tools to collect consecutive line segments having the same elevation value and appending/merging/generating one single line from them? Each resulting ...
3
votes
1answer
562 views

'Pausing' a Python script tool to allow the user to provide input before continuing

I am using ArcGIS. I have written a Python script that creates various surfaces including NDVI. After the script creates those surfaces, I would like the script to stop running while the user ...
2
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2answers
521 views

Can anyone tell me why my field calculator is returning this error?

All I am trying to do is pull into a text field, a section of another text field via: fieldB = !fieldA![some_index:other_index] However I keep receiving the error below and I can't figure out why. ...
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0answers
101 views

Copy Raster Catalog from .mdb to .gdb, but only within a certain extent with arcpy?

I am stumped again, this website has really helped me before so here is another shot. I am trying to copy a raster catalog from a personal geodatabase to a newly created file geodatabase but only ...
6
votes
1answer
3k views

How to add feature class to MXD with ArcPy (Python)? [duplicate]

I am using ArcGIS 10.1 and I am trying to add a feature class that I create to an MXD, so that I can join to it. This all needs to be done using Python. Is this possible?
3
votes
2answers
253 views

Detecting ring direction of a polygon using ArcPy

I am using ArcPy in ArcGIS 10.1 to process some geometry using the arcpy.da data access module. However I have run into a problem with complex Polygons that contain inner rings/holes. From the ...
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2answers
576 views

How to write raster field values into attribute table using ArcPy?

Is it possible to use ArcPy (10 or 10.1 )to write raster field types into a featureclass? either SDE or filegeodatabase?. I'm hoping to use arcpy as means of automating the process of adding rasters ...
12
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2answers
1k views

Why learn/use Python Toolboxes over Python Script Tools?

I've written a few Python Toolboxes (which are new at ArcGIS 10.1), but am yet to decide whether/when I should write them rather than Python Script Tools in a standard toolbox. I thought the Online ...
4
votes
1answer
1k views

How to reduce time for 'Export to PDF' (or any other alternative to print maps) in Python?

For my work, I designed a tool to create PDF maps with large amount of data, intersected with 5 buffer rings using ArcPy. The job involves intersecting points, selecting points, generating Elevation ...
3
votes
1answer
307 views

How to get default parameter value for script tool from csv file?

I am fairly new to python scripting. I have just figured out how to read and write input parameters for a python script from a csv file. Now I am being asked to pre-populate the script tool dialog in ...
1
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2answers
182 views

Python select by attribute using a variable counter

I am brand new to python and trying to learn how to do some simple loops but I have hit a snag. Below is what I am working with, I am trying to select the polygon row by row, but I keep getting EOL ...
7
votes
3answers
543 views

can arcpy detect whether it's running in Desktop or Server?

I'm developing some code that I want to run both as an ArcGIS Server web service and as a standalone script. I want to be able to modify the execution slightly depending on whether it's running as an ...
0
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2answers
268 views

ListFeatureClasses brings back more than expected

Why, when I issue the function: fcList = arcpy.ListFeatureClasses(feature_type='point') does it bring back a list of grid/rasters as well as all my point featureclasses from ArcSDE. All I want is ...
5
votes
3answers
2k views

calculating a field in which null values may be present

I would like to calculate a field (short integer) using other fields (short integer) present in the table. In some cases these fields may have null values for one or more of the fields. For example, ...
0
votes
0answers
1k views

insert cursor and arcpy.da.editor

I am trying to insert geometries and attributes to a featurclass the has attachments enabled. The featureclass is in an sqlserver SDE 10 database with service pack 2 installed and the featureclass is ...
4
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2answers
2k views

How to copy selected (targeted) features to new shapefile using ArcPy?

I'm trying to copy specific attribute table rows from one shapefile to a new shapefile that will contain only the specified rows in its attribute table, that is, if a field GDP_TOP10 = 1. I'm using ...
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2answers
286 views

Python: Arcpy: Adding data to a shapefile

Complete arcpy beginner here... I have a shapefile with the fields CNTRY_NAME and GDP_HEAD. I have a list in Python gdppop2002 = [['Country1, 234.1232341], [Country2, 23.2341234],...etc...] I'm ...
5
votes
2answers
808 views

Does anyone use both ArcGIS and Python(x,y)?

I'm trying to get ArcGIS 10.1 and Python(x,y) to peacefully co-exist with a unified installation of Python. Surely someone else is using both these tools... right? Pointers would be much appreciated. ...
2
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1answer
940 views

Why does copy convert my Tiff raster value range?

Recently I have worked with some raster dataset. And I found there are different kind of raster dataset. Till now I have worked with grid type raster dataset and my add-in works fine with this type. ...
12
votes
2answers
1k views

ArcPy method to determine ArcMap document version

Is there a way with ArcPy to identify the version of a Map Document (MXD). I am working on a solution to inventory our MXD's and would like to know if a document is 8.1, 9.2, 10.0, etc. I am ...
1
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1answer
489 views

Creating an Origin/Destination (OD) cost matrix using ArcPy

I have created a python script that runs an OD cost matrix over five years from 1999 to 2004. I have set up an OD cost matrix for each year, which I think is very cumbersome. Is there someone who can ...