Geoprocessing is a GIS operation used to manipulate GIS data. If you are performing geoprocessing using ArcGIS then the tag Geoprocessing-framework is specific to that software and should be used instead.

learn more… | top users | synonyms

4
votes
2answers
2k views

ArcGIS Geoprocessing Services - Don't work if 'Run python script in process' not checked

I have a standard geoprocessing toolbox that I am exposing as a geoprocessing service. The tools in this toolbox are plain 'ol python scripts. All of this is being done in ArcGIS 9.3.1. As a ...
4
votes
1answer
540 views

Why is a Merge process via ArcObjects extremely slow?

In one of my arcobjects-based GIS tools I have a process which takes an array of shapefile paths and uses them as inputs with the ESRI.ArcGIS.DataManagement.Merge tool. I run it via a Geoprocessor ...
4
votes
2answers
820 views

Gaussian Plume Model

I'm looking for code to implement a gaussian plume model in 3D. Any suggestions on where to start? Are there any python scripts out there? Thanks
4
votes
1answer
76 views

How to enable adding both feature classes / tables and layers from TOC to a script tool parameter input?

I have developed a script tool which will allow a user to specify input feature class or table and then will process it. Surprised I haven't noticed this before: I cannot find which data type my ...
4
votes
1answer
121 views

Does the ArcGIS Online “Spatial Analysis Service” require data to be hosted on ArcGIS.com?

I'm exploring the new-ish ArcGIS.com Spatial Analysis Service. The Spatial Analysis service contains a number of tasks that allow you to perform common spatial analyses on your hosted data. ...
4
votes
1answer
293 views

Regression with Nominal and Categorical Data

I am doing a project looking at the prevalence of a weeds in an area. As an example, I have the following layers: Weeds Layer (polygons) {categorical data} Each polygon represents a point or polygon ...
4
votes
1answer
110 views

Is it possible to use RPy/RPy2 in a Geoprocessing Script that is exposed as a GP Task on ArcGIS Server?

Is it possible to publish a Script tool that uses the RPy/RPy2 module (or more generally any Python-to-R link) to ArcGIS Server 10 SP2? If so, what specifically do I need to do, i.e. Install R on the ...
4
votes
1answer
255 views

Splitting data into geographic zones for multiprocessing

I have been looking at multiprocessing and tools like Find Duplicates in Big Data and they seem to simply split the data into sections based on rows/number of records. I am trying to do an intersect ...
4
votes
2answers
198 views

How to determine flow amount along a stream using ArcGIS 9.2?

I have DEM with resolution 20m and also stream network map in shape format, isohyetal map in shape format. I have also historic numerical data for rainfall, runoff and temperature from 1970-2000 for ...
4
votes
1answer
741 views

Raster Calculator dynamic map algebra expression

Is it possible to dynamically construct a Map Algebra expression that is dependent on the output of another tool, either using model builder or arcpy? For example, say I have a model that performs a ...
4
votes
1answer
85 views

Making 'persistent' ArcMap tool without creating Python add-in?

I want to make an addon that, while editing in ArcMap, will track where I pan and move the viewport. I have the pieces together, but I don't like debugging with the Python Add-In wizard, because I ...
4
votes
0answers
308 views

How to write a script to square polygon corners?

I'm looking for a script that will square the corners of polygons that are near 90 degrees but not exactly. Near could be dealt with via a variable, for example within 5 degrees of 90 (85 - 95 ...
3
votes
1answer
4k views

How to use ET GeoWizard tools or Xtools Pro in ModelBuilder or Python to automate processing?

Is it possible to use ET GeoWizard or XTools Pro tools in automation of mapping in either in ModelBuilder or Python?
3
votes
3answers
2k views

How to batch clip to single-part shapefile using ArcGIS 9.3 and Python 2.5?

How do I clip a shapefile to a single-part shapefile using ArcGIS 9.3.1 and Python 2.5? Example: I have a set of lines (lines.shp) I am trying to clip to each record in a shapefile called Grids.shp ...
3
votes
2answers
901 views

Calculating elevation profile of a trail?

What would be the best way to calculate an elevation profile of a trail remotely (without using altimeter/gps tracking your steps)? For example, to do it in the most rudimentary way you might take a ...
3
votes
3answers
345 views

Do Different ArcGIS for Desktop License Levels Process Faster?

At my job, I have access to all three levels of ArcGIS licensing on my computer. My question is: Does the license you are using in ArcMap make a difference on the speed of ArcMap? I'm pretty sure ...
3
votes
2answers
163 views

Can I convert the sharp edges of a polygon easily to round edges?

I use the python module "shapely" to make Polygons (like below). Can I convert the sharp edges of a polygon easily to round edges? Such that when I have unified some polygons I could issue a command ...
3
votes
2answers
871 views

Looking for Python module to do lat lon calculations

I'm looking for a Python module that can provide some / all of the following services using latitude/longitude to define points: Distance between two points Point in polygon Distance along a ...
3
votes
1answer
475 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 ...
3
votes
2answers
558 views

Create point geometry in a feature class with all the attributes prepopulated

So here is the problem. I have a text file with space delimited values. A standard text file with the headings separated by spaces and then on each next line values for these headings (columns) also ...
3
votes
2answers
921 views

Why is ICalculator.Calculate significantly slower than the CalculateField geoprocessing tool with SDE datasets?

I just discovered today that there are essentially two ways to calculate field values in ArcObjects: 1. Using ESRI.ArcGIS.GeodatabaseUI.ICalculator: ITable table = …; ICursor updateCursor = ...
3
votes
3answers
2k 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
2answers
1k 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
2answers
513 views

ArcGIS flow accumulation

I am trying to run ArcGIS 10.1 flow accumulation on a 10000 x 10000 cell unsigned 8Bit integer flow model (but 80% of that is no data). The data has been through a "fill" procedure once. The only ...
3
votes
3answers
498 views

ArcGIS Server 10.1 Python GP script shape as input parameter

I am writing a geoprocessing script that will need to accept a shape as an input parameter. This shape will be obtained by a user drawing the shape in a web application. The web application will ...
3
votes
1answer
273 views

How to write binary ArcGRIDs outside of ArcGIS in linux?

I've been looking for a way to create\write binary formatted ArcGRID images in Linux without much luck. It seems the GDAL project only supports reading these files, but there is not write support. ...
3
votes
1answer
71 views

Calculate and add area of overlapping features within polygons

I have a polygon layer of watershed boundaries And a single multipart feature that contains all public lands for the state. I need to find the area of public lands within each watershed and add it ...
3
votes
1answer
79 views

Copying/Pasting Information from Geoprocessing > Results > Messages

This seems so elementary, yet I am having difficulty locating the directions for copying and pasting the information in my analysis output to a word document for future reference. Specifically, I ...
3
votes
2answers
383 views

How can I GROUP BY linear spatial clusters with PostGIS?

I have a series of points in a horizontal line, arranged into discrete spatial clusters by the underlying data pattern. Here's an example of what they look like: How can I use PostGIS to group them ...
3
votes
1answer
68 views

How many polygons under a point (ArcGIS solution preferred)

Opposite of Point in Poly. How many polygons underneath a point. I have a point layer with many points. I have a polygon layer with many polygons. I need to add an attribute to the points that ...
3
votes
1answer
320 views

How To Determine Frequency Of Overlapping Polygons (Bounding-Boxes)

My starting point is a series of bounding box polygons, representing the extents of all the data sets in my inventory. I am trying to produce an output grid showing the frequency of coverage over the ...
3
votes
3answers
726 views

Large scale geoprocessing through ESRI REST interface?

A typical limitation of web based processing is that urls are limited to 2 thousand characters for a GET request. From my understanding of how the ESRI Javascript API works, JSONP is utilized to ...
3
votes
1answer
459 views

ArcGIS GeoProcessing Model - Store List of Altered Features in Database

I am trying to build a GeoProcessing model which will find any parcels that have had their geometry values changed and store the corresponding parcel numbers in a separate non-spatial table. I am ...
3
votes
1answer
73 views

Unexpected vertices from the ouput of ArcGIS union tool

I have found some unexpected behavior of ArcGIS union tool. My assumption was that this tool will never add any new vertex to the output layer, but this was not the case. I have run the ArcGIS union ...
3
votes
1answer
887 views

Simplification Tolerance value field is missing from Simplify Polygon tool of ArcGIS for Desktop?

Trying to run Simplify Polygon (Cartography -> Generalization) tool in ArcGIS 10.2 (ArcInfo License). I ran the tool successfully once, then tried again on a new polygon, but the simplification ...
3
votes
1answer
76 views

nx_spatial does not read all shapefile features

I have a polyline shapefile for a road network. The roads are split at every intersection (node), e.g. if two roads intersect at one point, then they are split into four links(edges). So using the ...
3
votes
2answers
562 views

How to run a custom Geoprocessing tool using no parameters?

I created a custom geoprocessing tool called "CreateCoverLayer". It has no input or output parameters. I have the following snippet of code, but get an error message due to the fact that the Execute ...
3
votes
1answer
2k views

How do you convert raster to polygon while avoiding small polygons

I intend to convert a raster to several polygons, but I want to ignore too small polygons, and just keep larger polygon. How can I do that? Thanks in advance!
3
votes
2answers
3k views

Extracting elevation from a TIN file with a point shapefile overlay

I have a TIN file that was built off of contour polyline shapefile (I think). I have a point shapfile with a few points. How can I extract elevation of the TIN file where the points occur? I am ...
3
votes
4answers
471 views

Redistribute linestring vertices to specified distance

I use a groundwater model program called GMS, and it has a very useful function "Redistribute vertices" (more info). I use this function all the time to both simplify and provide regular spacings ...
3
votes
1answer
919 views

Consuming an asynchronous Geoprocessing service in ESRI's Flex API

I have been trying to consuming my own asyncronous Geoprocessing service using ESRI's FLEX api, but i am either doing something dumb, or there is some trick involved in getting the results out. Since ...
3
votes
2answers
115 views

Open Source Interpolation Service?

We are seeking an open source solution for dynamic (on the fly) IDW or Kriging points interpolation. Basically we are looking for something similar to ArcGIS Spatial Analysis Service. ...
3
votes
1answer
75 views

Which parameter data type is used in the Integrate geoprocessing tool for ranking?

I'm trying to figure out which parameter data type is used in, for example, the Integrate geoprocessing tool. It looks like this: I'd like to use it in a geoprocessing tool I'm making, but can't ...
3
votes
1answer
95 views

Polygon Neighbors not found in Proximity Toolset of ArcGIS Desktop 10.0?

I cannot find the Polygon Neighbors tool. I have searched for it as I usually do and I have also browsed the proximity toolset but it is not there. The other Tools, e.g. Buffer and Near are there and ...
3
votes
2answers
865 views

Create a single connected polygon from multiple polygons

I am trying to create a single continuous (neighborhood) polygon from many tax block parcels. The Multipart to Singlepart GP tool does not accomplish the task since I need the polygon to be complete; ...
3
votes
2answers
474 views

.net Geoprocessing object: 000816: The tool is invalid

I am currently trying to build an ESRI Addin that supports multiple versions of ArcGIS (10.0 & 10.1). The project targets .net framework 3.5 and is built in the ArcGIS 10 environment. The ...
3
votes
2answers
355 views

Getting “Failed to open tool” message when trying to run geoprocessing tool from C# code

I've been experimenting with the Military Aspects of Terrain Template, which has a toolbox associated with it. I've been using the following WPF Runtime code, which should open a tool in the ...
3
votes
2answers
763 views

Resample, ArcGIS: How do I avoid resample taking into acount NoData values?

I am trying to Resample a raster dataset to match the resolution of another dataset. I have fine resolution data on small islands (surrounded by NoData in the sea). When I re-sample the data to a ...
3
votes
2answers
614 views

How to efficiently check for feature overlaps with Arcpy?

In an effort to reduce processing time, I am looking for ways to pre-process data within my script. I have ~18,000 featureclasses with ~500 features each (all simple circle polygons) from which I want ...
3
votes
1answer
334 views

FME: Can I add multiple feature types to the SQL Server Spatial reader?

The title's it, really. With .TAB file reader, you can add multiple layers to the reader and use the 'merge feature type' check box with an '*' to read all the layers listed in the source files, ...