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

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60 views

Insert last coordinates from a list of coordinates with line ID into a multipart polyline feature class

I'm having problems creating the last line from a list of coordinates that I have. I have a text file with coordinate data with a X, Y, and a Line ID (LID). I read the file and inserted each ...
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49 views

Creating sign locations from an existing database with offset & dist to nearest intersection (buffer analysis)?

I have a database of 22,000+ signs that contains the offset from centerline along with a distance to/from the edge of pavement to a specific intersecting road for each sign. I also have a street ...
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263 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 ...
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90 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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265 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 ...
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173 views

Problems running zonal statistics - not all zones represented

I have been working on a Python script to automate the steps illustrated by whuber here:Create points around the edge of viewshed results I am trying to create a horizon graph illustrating the ...
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216 views

arcpy & TraceGeometricNetwork return ERROR 000584

I am developing a script to automate the creation of a road network following varying criteria. I have created a geometric network and I would like to get the connection between several points with ...
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162 views

ArcGIS opposite to pivot table

fellow GIS-ers :)! I've been trying to find a tool to do the opposite to what the "pivot table" tool does but I dont thin there is any tools for that. I have a raster data set derived from Landsat ...
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60 views

Are polygons created in Arcpy built in any order?

My script uses a search cursor to evaluate polyline coordinates and build polygons based on those coordinates. The script works well, but I am curious as to whether anyone knows the order (if there ...
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323 views

How to transfer the attributes of features based on their spatial relationship?

I'd like to check if a point feature class is placed on a line feature using python in ArcGIS 10.0. I have created a set of point features and placed them directly on a group of line features at ...
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212 views

Why does Clip analysis generate (some) empty output?

I am running a script that is working (see below) - it pulls a file from a folder, clips from that file based on an intersection with another file, and creates a new shapefile in a new folder. It has ...
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177 views

arcpy ArcGIS Server

Could someone please help me by giving me an example on how to make/connect/Add ArcGIS Server connection via python/arcpy? Thank you in advance. I'm using ArcMap 10.0 I desire to "Use GIS Services" ...
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194 views

How to access selected feature attributes using Python Add-in button?

I'm trying to extract the attributes of a selected feature in ArcMap using an add-in button, but I don't know how to refer to this selection in the script. Later I need to copy these attributes into ...
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96 views

Is segment of polyline contained in polygon

I am pretty new to arcpy and am slowly learning all its functions. I have a scenario where I am traversing a polyline. I get a start point and an end point on the polyline and form a segment with ...
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62 views

Script Tool Problems ArcMap 10.0

I Have a scipt tool that runs when input shape files are added from the table of contents (added from drop down menu.) However this tool will not run when they shape files are added using the add file ...
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84 views

Are multiple separate feature classes more efficient than repeatedly deleting all features from the same feature class?

Quick Version: Is it more efficient, in terms of database performance, to have multiple separate temporary feature classes or one feature class that you repeatedly empty out and fill? I am working ...
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419 views

ArcPy 10.1 PointGeometry.projectAs()

I'm trying to reproject an X,Y passed in from an Add-in. So far this works fine: pointGeometry = arcpy.PointGeometry(arcpy.Point(x,y),srIn,False, False) projectedPoint = ...
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153 views

Table record counts change when using python tool

I have a python tool which investigates mxd files and clips/projects and exports all visible datasets. Recently I've found that the record counts (even on non-clipped data) is different. It's ok if I ...
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96 views

jagged edges in mosaic DEM

I encounter edge issues when trying to mosaic USGS NED DEMs in ArcGIS 10.0.0. After projection and aggregation, I attempt arcpy.MosaicToNewRaster_management(). I've reproduced the same results using ...
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277 views

Algorithm to place the minimum of rectangles to cover a polygon

I'm trying to cover a polygon with the minimum set of rectangles like explained in the picture below, the used rectangles have the same size a*b (a != b) , the rectangle could be rotated by ...
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80 views

Why does the method partCount in ArcGIS always give back a value of 1?

Does anyone knows why method "partCount" in arcgis version 10.0 always gives me back value 1, even when I have object with interniorring or multipart object? partnum = 0 partcount = feat.partCount ...
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211 views

Clipping .mdb in place and schema locks

I have an .mdb with a feature class that I want to clip in place - that is, I want to clip it with another polygon, and then store the results back in the original .mdb. I am doing this with arcpy. My ...
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284 views

ArcGIS/arcpy: Geometry object comparison methods not working. Do they take z values into account?

I have an arcpy script that makes calculations based on an input PolygonZ feature class. What I need to do in several places in the script is test whether a point falls within a polygon in 2D. In ...
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120 views

How can I draw an ellipse filling the dataframe with ArcPy?

I need to modify one of my template scripts to draw a circle from the centre of the (inset) data frame to the edge of the data frame. This will then be used to clip the data frame to shape. I'm using ...
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497 views

Variable stored as NoneType in Python with updateCursor

SOLVED: although the field was not nullable (no null values), a glitch created one in the heading field, so the variable was stored as a null value and thus the NoneType. I am using updateCursor to ...
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185 views

ArcGIS 10.0 - How to have GP Service make rest calls instead of Silverlight client?

I have a Silverlight client that densifies a user drawn polyline. The returned vertices from the polyline are then sent to esri elevation sample server for each vertex to find an elevation value. ...
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248 views

Relate first point and last point of polyline to point feature(s)

I am working on a small script using ArcMap10/arcpy to generate a upstream-downstream uniqueid for a polyline feature class using point id's that fall on the starting point and ending point of a line. ...
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104 views

Copied points not intersecting the original points

I'm using an arcpy search cursor to access a Oracle database. I have a simple Python class that I copy the returned row objects into, which gives me more flexiblity than the cursor. The problem is ...
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80 views

getSelectedExtent not working on joined layers

When joining layers the getSelectedExtent function in ArcPy fails to get the extent. Unjoining the layers and running it yeilds the expected result. The joined layers are all located on an SDE. Is ...
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652 views

ArcGIS 10.0/arcpy: Can't retrieve the points in a polyline geometry obect: any idea why?

My arcpy script builds a Python dictionary, dictCLPnts, that holds the geometry objects of a polyline feature class. The following code snippet shows the attempt to access the geometry object with ...
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142 views

Arcpy problems regarding convertToMSD() Function

I am having trouble getting the ConvertToMSD Function to work. Technically it works, but not in the long run of my script. I use the converttomsd function to create an msd. I then publish this msd as ...
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27 views

ArcPy inconsistently accepts SQL queries for MakeFeatureLayer or SelectLayerByAttribute

I need to buffer a subset of features in a particular feature class. To do this, I am first creating a feature layer (using a SQL query to select only what I want), and then running Buffer. So my ...
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31 views

Cause of ExecuteError: ERROR 999999: Error executing function from Spatial Join?

I'm trying to use the spatial join to append rows to my target feature from my join feature. Here's my code: #import the module import arcpy from arcpy.sa import * from arcpy import env ...
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30 views

How do I change graduated color class values with python?

I am trying to use python to adjust my graduated color symbols' class breaks and labels. The layer is a query layer tied to an SQL DB and I want to be able to execute my python (after the database has ...
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7 views

Spatial Join in Arcpy - wrong line segments are being matched

I'm working on an analysis in which I want to compare 2 polyline-datasets. In one of the first steps, I use a spatial join to create a sub-dataset with only those line segments that have an exact ...
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29 views

arcpy.Clip_analysis() Automatically Affixing .shp.shp to Target Feature Class Name?

I created a Python script that was previously working fine, but is now giving me an error when I try to use the arcpy.Clip_analysis() function in arcmaps 10.2.1. I am not adding a filetype extnsion ...
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14 views

procedurally alter dimensions of embedded Picture_Element

Theoretically, should it be possible using arcpy to alter Picture Element dimensions whose images are embedded? My attempts haven't worked. I thought to clone these as a possible workaround but those ...
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48 views

kriging interpolation of many z

I have similar questions with Iterating through z-values in ModelBuilder. I want to interpolate my z's with my specific interpolation extent raster and extract each value to specific grid points (I ...
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37 views

how to create a shapefile containing attributes from a list?

I have a list of features and each feature is a dict in that list. following you can see the structure: [ {"FID": 0, "Shape": polyline, "Nodes": [0,1]}, {"FID": 1, "Shape": polyline, "Nodes": ...
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28 views

ArcPy select and merge dropping records from table?

I'm working on a python script for ArcGIS using the arcpy module. I have ArcGIS 10.1 and Python 2.7 on Windows 7 machine and using Notepad ++ and IDLE to run it. The script selects specific records ...
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19 views

CreateObject cannot open map document error when cycling through list of MXDs

I have a stand alone Python script that aims to make a list of data sources from a series of folders/sub-folders full of MXDs. However I am continually getting the: CreateObject cannot open map ...
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25 views

Unable to load shapefiles fully using shapefile.py

I am trying to load my shapefiles directly via Python rather than loading them from Arc Catalog to ArcMAP. I load these modules first: import sys import os import arcpy import numpy Then I add a ...
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29 views

Using arcpy to enable layer masking (Advanced Drawing Options)

I am looking for a way to enable and change layer masking (under Advanced Drawing Options) with arcpy... it seems you can do this if you have the Production Mapping extension, but I do not have it... ...
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30 views

How can I define coordinate system of feature class when overlaying with coordinate zone shapes in python?

I have generated bounding boxes for CAD drawings that do not have defined coordinate system files. I know that each drawing could be in one of 6 different systems that do not overlap. My idea was to ...
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57 views

Script to turn layers on/off in Data Driven Pages?

I'm working with Data Driven Pages to create a map series of communities (points). I'm using Model Builder to create a line poly feature for each community. The line poly shows the time away from each ...
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48 views

Arcpy raster calculation producing random no data cell in output

I've been trying to get the raster calculation below to work using python: import arcpy from arcpy import env import os from arcpy.sa import * arcpy.CheckOutExtension("spatial") KSat_mm = ...
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27 views

Using GDAL and Python to replace the Spatial Analyst TabulateArea method

Has anyone tried to phase out the use of ESRI's Spatial Analyst extension by replacing it with GDAL in Python? I have a script that only uses the TabulateArea and Statistics analysis but not much else ...
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43 views

when using arcpy.mapping.ListDataFrames, python.exe crash

Has anybody had this problem? this drive me crazy. what is wrong with my code? import arcpy mxd = arcpy.mapping.MapDocument(r"D:\Project\Project.mxd") df = arcpy.mapping.ListDataFrames(mxd, ...
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34 views

Determine Transect line to cover area

I'm near certain this is a solved problem, but I haven't been able to find a solution from searches so here's my situation (probably I'm searching the wrong thing)... I need to compute the ...
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21 views

Using file directories from a table

I have a toolset that will be using a set of file directories as input (shapefiles, raster etc.).The table can be stored as CSV or DBF. Is there a way to read a specific cell (row,column) of the ...