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

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0
votes
2answers
239 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
votes
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 ...
1
vote
2answers
232 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
710 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
votes
1answer
837 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. ...
9
votes
2answers
921 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
vote
1answer
406 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 ...
1
vote
0answers
378 views

Python Addin toolbar- Environment mask parameter not being recognised?

I've created a button on a python addin toolbar which uses the selected features from the selected layer in the TOC, creates a feature layer from that selection and uses that feature layer to set the ...
2
votes
2answers
108 views

How to reproject all featureclasses in a database to another database?

I am very new to arcpy and have ArcGIS 10.0 I would like to make a script where I would only have to change two variables in a script (database_input and database_output) so that I can reproject all ...
0
votes
1answer
347 views

Apply Symbology to a group layer

I currently have around 200 features that all need have the same symbology applied to them. I have used the ApplySymbologyfromlayer_management however this takes much to long to process, at least a ...
0
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0answers
68 views

Pyscripter hangs on spatial join?

I've got a script which loops through a series of FC layers (tracker points). Using a FOR loop, they're reprojected then joined to a streets layer. Sometimes it works fine, then other times it never ...
6
votes
4answers
2k views

How to check via Arcpy if ArcMap is currently in an edit session or not?

I've created a Python add-in button that helps speed up my coworkers workflow by copying one feature class attribute to another. It uses the arcpy.UpdateCursor function to update a row in the target ...
1
vote
1answer
234 views

OD cost matrix Arcpy [closed]

I'm trying to create an OD cost matrix python script. I'm doing an OD cost matrix analysis. I'll find out the average time with patients to hospitals over 10 years. When I do this analysis, the ...
2
votes
1answer
260 views

How to catch invalid expression errors in Python?

I have a script that creates a new feature using arcpy.GetParameterAsText, but I'm having trouble creating an error message for incorrect user input. The input for a parcel # should be something like ...
1
vote
2answers
508 views

ArcPy Field Calculation with special characters

I'm trying to calculate a string field, using "µSv/h". Running this in the manual field calculator works just fine, but I've tried this in the Python window in ArcMap as well as the IDLE, but both ...
2
votes
2answers
527 views

Python Code: “Compare two fields and select missing records”

The code I wrote is not right!! It's selecting more than what is actually missing. I think I'm wrong on the matched code line. I need the script to make a list of the "FLAG" field and a list of the ...
1
vote
2answers
268 views

Polyline will not turn into a feature layer via MakeFeatureLayer_management (arcpy)

I've got a python script that is connecting a sequence of points to make lines (script is based on answers to my previous question). To attempt to make subsequent processing more efficient, I would ...
6
votes
1answer
828 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 ...
3
votes
1answer
434 views

mosaic raster to file geodatabase yields missing raster sections

Since upgrading to ArcGIS 10.1 (SP 1) from 10.0, I've been encountering an issue when running the arcpy.MosaicToNewRaster_management() tool with output to a file geodatabase. I'm principally working ...
1
vote
1answer
93 views

Feature to Line on feature selections with ArcPy

I'm trying to collapse parallel polylines (dual carriageways in a shapefile of roads) to single centrelines. I'm aware of cartography's dual lines to centerline tool, but I find Feature To Line (Data ...
2
votes
0answers
814 views

Fixing “spatial index grid size is invalid” without Recalculate button

I've got a python script that is connecting a squence of points to make lines, and putting them into a feature class (based on answers to my previous question). It works wonderfully on a small area ...
3
votes
3answers
624 views

Runtime error : ERROR 000358: Invalid expression using SelectLayerByAttribute in ArcPy?

I cannot for the life of me persuade SelectLayerByAttribute to work (I need to automate this for a complex script). Working in ArcMap's python console on already loaded shapefile, the format below: ...
2
votes
1answer
176 views

Reporting Engines used with ArcGIS Server

I'm curious what others are using to build the more elaborate reports out of ArcGIS Web API apps? By elaborate I mean ones that include lots of dynamic charts and tables, multiple maps/data frames ...
0
votes
1answer
685 views

Can an arcpy.da.SearchCursor be used on a dataset residing in a ParcelFabric?

I'm using ESRI's LocalGovernmentMI.gdb data model and am managaing parcel data in a ParcelFabric dataset. I'm trying to use a search cursor on the ParcelFabric_Parcels dataset but I recieve this ... ...
8
votes
1answer
215 views

Difference between python window and toolbox

Are there differences in performance or other potentially critical area between running a python script in the python window versus running it from the toolbox in ArcGIS 10.0? I am asking in cases ...
1
vote
2answers
96 views

Select individual lines from feature class, convert to unique rasters: “raise e” error?

I have a feature class with 5 lines in it, and need select each one and turn them into its own raster -- for example, line 1 is raster 1, line 2 is raster 2, etc. This is the python script: import ...
2
votes
2answers
557 views

Run Python child script using Python Add-In button class?

I have a Python script which I want to execute using Python Add-In button class. Right now, I am using following: class child(object): """Implementation for Toolbar_addin.button2 (Button)""" ...
13
votes
1answer
362 views

Watermarking photos using their geotag and create a shapefile

I have geotagged photographs and I would like to place a watermark of the photos location on the front for easy reference as well as creating a shapefile from the coordinates. Does anyone know of any ...
0
votes
1answer
806 views

UnboundLocalError: local variable referenced before assignment

I have following simple function to get percent values for different cover types from a raster. It gives me following error: UnboundLocalError: local variable 'a' referenced before assignment which ...
0
votes
0answers
253 views

python script to calculate and return values based on several conditions

I need to calculate and return the value "continuous" to those records in a polygon feature class with species records aggregated to a UTM grid considering the attributes are species name, grid code, ...
2
votes
1answer
1k views

How to use CURRENT map document in Python tool?

I am attempting to use this code in a tool that I am working on: mxd = arcpy.mapping.MapDocument("CURRENT") df = arcpy.mapping.ListDataFrames(mxd)[0] XMIN = df.extent.XMin YMIN = df.extent.YMin XMAX ...
3
votes
2answers
475 views

Create line from two points, two different feature class

I'm attempting to automate this in ModelBuilder in ArcMap. I have one feature class with one point (Start) and one feature class with multiple points (Destinations). I want to iterate through the ...
4
votes
2answers
294 views

Accessing arcpy functions from IronPython

I made a few python scripts to automatically optimize and publish my data.. Now i'm thinking about writing a .NET program to manage and run these scripts: the obvious way is invoking them in a ...
0
votes
1answer
944 views

How to insert values from one table into another?

I am trying to write a script that iterates through each row of a table, calculates for this row something. The result of this calculation is finally stored in another table (with just one row). Now I ...
3
votes
1answer
209 views

How to make multivalue input script run from a toolbox?

I have a working python script: import arcpy sdeconnection = arcpy.GetParameterAsText(0) layerfiles = arcpy.GetParameterAsText(1).split(";") for layerfile in layerfiles: print layerfile lyr ...
2
votes
1answer
307 views

How to read XY, get raster value and then update field?

I've written a script to run through a point layer, using the SearchCursor in the data access module and then read the XY values. Within the with statement, I then use GetCellValue to get the ...
1
vote
1answer
188 views

Problem with calculating the total cell values

aa= arcpy.RasterToNumPyArray("water_depth") sum = numpy.sum(aa) print sum -2933737 Why I am getting negative values ? In my raster there is no any negative ...
2
votes
1answer
298 views

Arcpy Network Analyst solver error

Hello GIS Stack Exchange, I am finding it difficult to load locations to sublayers using python in ArcGIS 10.0 network analyst Vehicle routing problem. I'm also having some trouble debugging my ...
0
votes
0answers
29 views

using python and arcpy , how can I compute the direction and angle of a line segment? [duplicate]

if start_point_x < end_point_x and start_point_y > end_point_y: slope = ((end_point_y - start_point_y)/(end_point_x - start_point_x)) radian = math.atan(slope) degrees = ...
2
votes
0answers
166 views

Different results from Spatial Analyst GP Tool and Python

I am writing a script that has to subtract one raster from another. The rasters I have represent 1) Parking Lots (1 = Parking Lot, 0 = not Parking Lot) and 2) a buffer around the Parking Lot (1 = ...
0
votes
1answer
244 views

arcpy.setValue for Condition from Dictionary

Hi: I am trying to create a function to update multiple fields based on different criteria. I want to pass the field name and condition thru' a dictionary (please see the function description in the ...
0
votes
2answers
431 views

Add a time dimension in ESRI mosaic raster dataset

I am in the process of creating a script to pull daily .asc files from a ftp server, convert them to a raster format, and push them into a mosaic raster dataset. Ultimately, the raster dataset will be ...
1
vote
2answers
182 views

Set Extents of MXD to new layer data source?

Alright here I go again this forum has been good to me. I add a layer and replace its data with a shapefile I created using the following bit of python: layer = ...
2
votes
1answer
68 views

How to use arcpy.setValue for Title casing?

I am trying to figure out how to use fieldName.title() method while updating rows using updateCursor for multiple fields. I was trying to improve the code of this post to fit my purpose: ...
2
votes
1answer
163 views

Python script to update attributes crashing during loop

I have a script to update a field in one feature class from a selected record in another feature class. This is done through looping through records in one feature class selecting appropriate the ...
2
votes
1answer
161 views

Arcpad checkout to an area

I would like to check out data from an SDE database but for performance sake, i prefer to delete all features outside of my survey area. i've tried to copy features in area from sde to a file GDB ...
1
vote
1answer
105 views

Setting More Than One Workspace

I have a number of tables that contain known values in a field. For example, I have a soil type table with one field in it. That field contains a list of known soil types. I have another table that ...
5
votes
1answer
171 views

Listing ArcSDE versions using ArcPy?

I have an ArcSDE geodatabase with different versions for each user. How can I list each version using ArcPy?