A python API created by ESRI to perform geoprocessing and layer management.
3
votes
3answers
464 views
Copy dbf data into a shapefile in Arcpy
Basically it's to perform a one-to-many join in a python script, from a dbf to a shapefile. I saw (Greg Krakow's method) using QGIS, but I can't use it (I'm working on it, but QGIS is not yet ...
3
votes
1answer
168 views
How to convert a string from GetParameterAsText to uppercase?
This is my first question here and I'm sure it's ridiculously simple. But I have Googled and no luck.
I am trying to make a tool in ArcToolbox using a Python script so users can input a street and ...
3
votes
2answers
257 views
Trouble finding YMin and YMax of a shapefile in ArcMap 10 and Arcpy
I want a python script that tells me the Xmin, Xmax, Ymin, and Ymax of a polygon. (I guess this is finding the extent of a polygon?)
My current script gives me the correct the Xmin and Xmax, but it ...
3
votes
2answers
165 views
How to select polygon features that have their centers outside of another polygon feature class
Since I only have Incorporated area feature class, how can I select census blocks that are in unincorporated area? Or not within any incorporated areas?
Thank you.
John
3
votes
1answer
64 views
How to return text from GP service?
So I've got a website that I want to extend by letting people look up postal/zip codes for an address they enter. I've already got all the addresses (with their postal codes) for the city in an ...
3
votes
1answer
147 views
Pasing multivalue parameter using arcpy
I am trying to get my head around how multivalues derived from the arcpy command GetParameterAsText gets looped through a script. Could some please provide a sample script that does the follow basic ...
3
votes
1answer
322 views
How to write a python script to give multiple buffers of different sizes in ArcGIS?
I want to write a loop that will cause the output to be multiple buffer shapefiles. For example I want a circle buffer of 50ft, 100ft, 150ft..... Can anyone help? I'm new to this and am trying to ...
3
votes
1answer
461 views
ArcPy Rename Loop
Does anybody have an ArcPy script which points to a directory and renames files within that directory?
For example, I have approximately 1500 raster files with names along the lines of ...
3
votes
2answers
2k views
Assertion Error when attempting arcpy.mapping.AddLayer
Whenever I attempt to use AddLayer it gives me: Runtime error <type 'exceptions.AssertionError'>
This is what I've been using:
arcpy.mapping.AddLayer(MainDF, ...
3
votes
2answers
81 views
arcpy Problem with updateRow() when trying to update fields with UpdateCursor
I have a list of values which I am trying to add to an existing shapefile. The field where the values need to be inserted has been added via arcpy.AddField_management and thus the values of the rows ...
3
votes
1answer
93 views
Has anybody used arcpy.mapping.ExportReport successfully on 64bit machine?
The online help for arcpy.mapping.ExportReport says that it has some restrictions on use but does not list 64bit machines amongst them.
I am running the following test from IDLE under ArcGIS 10.1 SP1 ...
3
votes
1answer
813 views
How do I use python to batch process the reprojection of a group of shapefiles?
My client would like his shapefiles reprojected and I would like to get a script that can batch process all the files located in the same folder. I am new to Python and ArcPy but am very interested. ...
3
votes
2answers
358 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 ...
3
votes
1answer
293 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 ...
3
votes
2answers
917 views
Selecting features through arcpy
I would like to achieve the following functionality through arcpy:
Querying an existing baselayer on time and create a new layer
Apply symbology from an existing layer and add the new layer to the ...
3
votes
3answers
694 views
Does ArcPy have a spatial search function for geometry?
My problem:
Using ArcPy I want to loop over buffers and select geometry_features inside each buffer and do something (update) only the objects found within that specific buffer.
The code below ...
3
votes
3answers
1k 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
536 views
ArcGIS Select Analysis using Unique Values from Field
I am trying to create separate shapefile using Select analysis with ArcPy by doing an SQL query to create them based on a unique value from the field. I want to create a list of the unique values in ...
3
votes
2answers
811 views
Is it possible to get arcpy on 9.3* or Qgis? Or maybe some of the functions?
If this isn't possible what would be the closest equivalent open source? Could parts of the module be ported to work on 9.3 or QGIS? I'm not sure if this would infringe on the license porting for 9.3. ...
3
votes
1answer
105 views
Beginning Arcpy: Asking for a quick review of my script
I cobbled this code together from ESRI documentation and stackexchange answers.
I tried to use SearchCursor(points, fields=fieldname) but I get this error:
TypeError: SearchCursor() got an ...
3
votes
1answer
460 views
How to find and delete identical points?
I recently performed Integrate on a merged point feature class in ArcGIS 10.1. I specified "1 meter" XY tolerance for the Integrate command. The resulting point feature appears to be what I want ...
3
votes
2answers
122 views
How to filter out multipart polygons and then buffer?
I've written a small script trying to accomplish the task described in the question title. It basically looks like:
in_fc = '...' # Some shapefile goes here
# Get the fields (column names) of the ...
3
votes
1answer
149 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 ...
3
votes
3answers
678 views
How to create lines from points pair coordinates with arcpy?
I've got some points pair coordinates (start and end points) which I have to transform into lines. Until now, I used an append of both the coordinates in a pippo.Point(), a pippo.CalculateGeometry() ...
3
votes
3answers
511 views
How do I access a multivalue output parameter from a python script in modelbuilder in ArcGIS 10.0?
How do I access a multivalue output parameter from a python script in modelbuilder, in ArcGIS 10.0? That is, I have a python script that loops through several input layers (working through a script ...
3
votes
2answers
1k views
Arcpy - How do I specify the precision and scale of a new field?
I'm wanting to create a field with a maximum of 1 decimal place and then calculate a value into it: (I know that all my values are < 10)
arcpy.AddField_management('C:/shapefile.shp', 'myField', ...
3
votes
5answers
403 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 = ...
3
votes
3answers
298 views
Convert cursor output to list of geometries
I want to convert all the geometries returned by search cursor to a list.
import math
import arcpy
from arcpy import env
env.workspace = r"C:\GIS Data\GIS data_for Maeenul vai"
desc = ...
3
votes
2answers
374 views
How to use Matplotlib in Python 2.6 installed by default ArcGIS 10.0 installation?
I am wondering if anyone has successfully run Matplotlib with the default installation of Python 2.6 that comes Arcgis 10.0. It does not seem to work with the python version installed by Arcgis 10.0. ...
3
votes
2answers
762 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 ...
3
votes
1answer
1k 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 ...
3
votes
3answers
576 views
Using Python to combine middle parts of two fields into third field
Below is how I used the Update Cursor in my final script. As you can see getValue was used a few times, perhaps there is a cleaner way to do this? But my concatenated field wouldn't populate properly ...
3
votes
1answer
1k views
How do I 'select' using ArcPy?
When using a cursor to loop through an attribute table, is it possible to iteratively select each row?
I want to clip a line to a polygon grid (see previous question); due to the size of the grid the ...
3
votes
2answers
461 views
Arcpy: print to PDF with Vector shapefiles, text etc
I have a small python script which exports a set of data driven pages to PDF. This works fine, including appending each page to an 'all' pdf.
My issue is that it creates rasters of each layer in the ...
3
votes
2answers
616 views
Resequencing Legend Items in Python
I create various layers programmically with Python in ArcMap 10. I can adjust how the layers are sequenced using the arcpy.mapping.MoveLayer command. But I want to have the legend reflect a different ...
3
votes
1answer
58 views
Why is my simple arcpy script failing? (sets raster cell value to null if below threshold value, ArcGIS 10.1)
As mentioned in the title, simple script to set null cell values below three standard deviations beyond the mean:
import arcpy, sys, os
#Accept input and output raster
inRas = sys.argv[1]
outRas = ...
3
votes
2answers
42 views
Is it possible to have tool parameters appear only if clause met?
I'm writing an arcpy script for a tool that has a large number of parameters (around 10).
About half of these are "dependent" (perhaps not in the technical sense of the term), as in [first ...
3
votes
1answer
71 views
How can I validate a table name on SDE with Oracle backend?
Second title: "Is arcpy.ValidateTableName broken on Oracle?"
I have an Oracle SDE database 9.3.1 (service connection). My arcGIS client tools are version 10.0 SP5). I have some names of feature ...
3
votes
2answers
235 views
arcpy.da.SearchCursor - unique value get second field value
I have a feature class and using arcpy.da.SearchCursor I'm getting unique values of a field (e.g. Name). How can I use this method to get the associated row value of a different field (diff field = ...
3
votes
1answer
103 views
Is it possible to get the coordinates of a user clicked point in a current MXD with ArcGIS 10.0 ArcPy?
I would like to know if it is possible to get the coordinates from a user clicked point in the current map document - arcpy.mapping.MapDocument("CURRENT")?
3
votes
1answer
161 views
getting the specified geographic transformation, or at least the GCS, of a data frame
First, the TLDR digest:
I'm getting a bogus value from dataFrame.geographicTransformations on some machines; how do I get the correct value as shown in the properties dialog? and/or
Given a spatial ...
3
votes
1answer
200 views
Zoom to Shapefile attribute table row feature
I am working with the python code below in ArcGIS to zoom into a shapefile's attribute table row features without selected until the end of table one by one.
I am trying to use this code but this one ...
3
votes
1answer
187 views
How to List field name aliases in ONE shapefile/layer using ArcPy?
I want to use arcpy/python to print out a list of all the field name aliases for a specified shapefile. So far I have been able to hack a script I found to list all the field name aliases associated ...
3
votes
2answers
273 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 ...
3
votes
2answers
769 views
Using arcpy from the command line on ArcGIS Linux Server 10.1
We installed ArcGIS SERVER (not Desktop!) 10.1 on a RHEL (Red Hat) machine. ArcGIS Sever is supported for Linux.
However, it appears they don't make it easy to script in python, from the command ...
3
votes
1answer
647 views
How to reference a specific layer in a dataframe with Arcpy
I am trying to reference a Layer named "Tim" in the dataframe "Layers" in my .mxd. It is not working. I have looked at the ArcGIS online help and all else in this forum. Can't get rid of this Runtime ...
3
votes
3answers
375 views
merging data in ArcSDE
I need some suggestions/inspiration for a problem we have.
The problem:
We have an ArcSDE master GIS database. We will edit this data almost exclusively outside of ArcGIS and outside of ArcSDE. In ...
3
votes
2answers
597 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 ...
3
votes
1answer
415 views
ArcPy not running on standard console
I know this is a newbie ArcPy question, but here is the deal:
While I'm inside ArcMap 10, the Python window gives me all output correctly, like this:
>>> arcpy.env.workspace = ...
3
votes
1answer
2k views
How to sort a feature class and then calculate a sequential ID field?
I am in ArcMap and I want to sort the records based on a field and then do a Calculate Field with an auto-incrementing value with the sort in-place. Any ideas?
It looks like I could get an update ...
