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

22
votes
5answers
5k views

How to identify clusters in vector point data?

I have a vector dataset of rural broadband data-points (how fast, etc.) and I'd like to explore if there are clusters of points with similar characteristics, and to plot polygons encompassing them. ...
4
votes
3answers
660 views

How can I have ArcGIS not automatically add raster clip output from Python window to the current map

I have a collection of rasters that I'm writing code to automate clipping based on a user defined shapefile. I am currently doing this in the Python window using the following as the main processing ...
5
votes
1answer
278 views

Does Google Earth Builder support server-side geoprocessing?

Is there a feature in Google Earth Builder that supports server-side geoprocessing? For example, say I upload two large geo datasets to Google's cloud: one with lots of points and another with lots ...
1
vote
3answers
565 views

What other tools can complete this exercise besides ArcGIS Spatial Analyst?

excel spread sheet here The objective in the exercise is to determine how many public computers are available per person as a result of spatial distribution of libraries and people. Part 1: Grid of ...
1
vote
1answer
322 views

Comparing GIS libraries

I am new to GIS. As a part of my research, I want to figure out among OSSIM, Saga API, Terralib and MApnik which one will best satisfy the following functionalities and why ( all for desktop GIS ...
10
votes
1answer
1k views

Is there a way to access QGIS plugins in Python?

Is there a way to access QGIS plugins in Python? I'd like to write a script to do some geoprocessing, and I'd like to use the clip, regular points and convex hull tools in fTools, as well as the Road ...
4
votes
0answers
291 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 ...
7
votes
3answers
602 views

Making county-level shapefile from set of points at 30 x30 km spacing using ArcGIS for Desktop?

I have a data set in csv form, like: latitude, longitude, value -45, 45, 10 .... I would like to calculate county level means from these data, using either ArcGIS or R+grass. I have the ArcGIS USA ...
2
votes
2answers
499 views

Creating a GP script to update a table in SDE

I need to create a geoprocessing script to update a table on an SDE server, with some text input from the user. I thougth what I needed to do was create a toolbox with a python script associated with ...
1
vote
1answer
130 views

Clip GAPAnalysis and save as a new file output strange looking colors

I download USGS GAP Analysis and use a polygon to clip raster from that GAP Analysis. I am wondering why there is a strange looking color when you clipped the raster. If you zoom in, you can see ...
3
votes
3answers
718 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
1k views

How do you make a SQL join query for a NULL in a search cursor in ArcPy?

I am trying to learn how to do some error catching/avoiding in ArcPy. Here is a simplified version of what I would like to do. I would like to take some points, and then check to see if there is a ...
0
votes
1answer
384 views

Calculating length with Python and the PYTHON_9.3

(Please critic wholly if possible) If I have polyline data in NAD83 and I want to calculate geometry using the PYTHON_9.3 parameter from the arcgisscripting.create(9.3), I am getting mixed results. If ...
2
votes
2answers
2k views

ArcGIS Server Data Extraction - Job does not exist or is inaccessible

I have followed the documentation and video to set up a data extraction geoprocessing service, which I am accessing with the ArcGIS Viewer for Flex (v. 2.3.1). When I run the Extract Data widget in ...
1
vote
0answers
660 views

Conversion to Raster issue in ArcGIS 9.3.1

Trying to convert a polygon to raster in ArcGIS gives me an error... I am wondering if there is another way around to do this? I am using ArcGIS 9.3.1. The error i am getting is number 9999 when I ...
19
votes
2answers
321 views

Ways of expressing geographic questions in machine readable form

A core concept of GIS is answering questions about datasets. From the point of view of a database; SQL with spatial extensions is a way of asking such questions. What other ways can questions be ...
7
votes
9answers
3k views

Exporting feature class into multiple feature classes based on field values?

I have a feature class with over 2,000 features, and I need to make them all individual feature classes based on a field. I know there has to be a way to do this, but I just can't figure it out! ...
2
votes
0answers
157 views

ArcGIS Can't get ResultImageLayer

I am unable to get a ResultImageLayer. I can get a GPFeatureRecordSetLayer using ResultData and add the feature geometries individually. I am using ArcServer 10.1 so it is not a pre-release problem. ...
2
votes
3answers
2k views

Does ArcGIS 10 have a Geoprocessor Programming Model by using Arcpy?

Does ArcGIS 10 have a Geoprocessor Programming Model by using Arcpy? is it possible to use ArcGIS 9.3 Geoprocessor Programming Model within ArcGIS 10?
3
votes
1answer
659 views

Convert feature class to raster based on attribute field values

As part of a tool, I’m trying to convert a feature class to a raster based on attribute field values. I have accomplished this conversion using IRasterConvertHelper, but this is done without ...
1
vote
3answers
727 views

Automating capture of Extent from multiple mxds with multiple dataframes

I want to create a single shape file from multiple mxd's that have multiple frame sets with different extents in them. I have found/started a script to do this (attached) but can't figure out how 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 ...
1
vote
3answers
368 views

Repository of ArcView 3.x Avenue commands/methods/general information?

The time has come for my great ArcGIS 10 skills to be put to the test... but we don't have readily available licenses for a lot of functionality that is exposed through ArcView 3.x's Avenue scripts. ...
2
votes
3answers
542 views

Publishing layer Package tool as a geoprocessing service

I am trying to build a small application (silverlight based) that would allow creation of layer package based on an area of interest. I have identified a GP tool that does this. The tool is located in ...
1
vote
2answers
552 views

Opening a custom model's geoprocessor window with ArcObjects

I have developed a custom model using ModelBuilder in ArcGIS, and I would like to use a .NET Base Command to open the geoprocessor parameter window for this tool so the user can enter their ...
9
votes
4answers
450 views

How do I figure out if there are clusters of one set of points around another set of points from a different layer?

I want to see if there is clustering of a certain type of buildings (x) around another type of buildings (y). The two point files are in different layers. I cannot figure out which tool I would use to ...
5
votes
4answers
2k views

ArcInfo - How to extend batch of lines to another object

Is there any simple tool which allows to extend all lines in .shp to another .shp? To clarify, I do have river.shp and sections.shp on the river. I'd like to produce buffer from river, extend lines ...
3
votes
1answer
415 views

Taudem Resources

As I frequently deal with hydrology, I've heard Taudem mentioned quite a few times. I'm finding all sorts of information, but much of it is dated for use with previous versions. In addition, the ...
9
votes
3answers
2k views

ArcGIS Python Tool - Importing Custom Script Into ToolValidator Class

I had posted a question last week about customizing a ToolValidator class and got some very good answers. In working with the proposed solutions, I have created a custom module that performs queries ...
6
votes
2answers
805 views

Binding Objects to List for ArcGIS Python Script Tool Parameter?

I am working on a python based script/tool. I would like to make use of drop down lists for several of the parameters. This is very easy to do if the lists are just plain old strings. Does anyone ...
9
votes
5answers
3k views

Compiling Python Scripts that use ArcGIS Geoprocessing Tools?

I've been coding with Python for several months now and have developed some reasonably complex scripts for primarily geoprocessing tasks. That being said, I'm still learning a lot as I'm coming from a ...
4
votes
4answers
663 views

Unable to save selected layer by attribute for ArcGIS Geoprocessing

I am troubles using the SelectLayerByAttribute() function for arcgis geoprocessing. I have a layer and I want to select everything that matches on a particular attribute. I call MakeFeatureLayer() ...
6
votes
1answer
690 views

Is there a way to get the percentage of different landuse types upstream of a given point?

I'm a fairly novice GIS user and know just enough to get in trouble in a lot of cases. I am trying to look at the connection between several measured parameters at a few hundred stations along ...
8
votes
0answers
373 views

Using a different Python IDE/debugger for ArcGIS [duplicate]

Possible Duplicate: How can I effectively debug arcpy Python scripts? I prefer to use PyScripter over IDLE as my IDE/debugger for writing GP scripts in Python. In ArcGIS, however, when I ...
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 ...
6
votes
2answers
955 views

how to cluster points of interest by lat lon for my WP7 app

I have alread asked this question on SO, so I appologies if duplicating this is bad form. I will link to each of the sites if I get the right answer... ...
14
votes
2answers
2k views

Is there a way to automate the preprocessing of LANDSAT data?

I'm currently enrolled in a remotesensing course, using LANDSAT data. Part of my course is about standardizing the scenes based on radiance values. I assume that because this is such a tedious task, ...
4
votes
2answers
781 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
2
votes
0answers
314 views

Proximity Toolset Questions - Description, Examples of Usage, and Limitations

I was wondering if you could help me answer a few questions about the Proximity Toolset. I have been given the task of describing each tool in laymen terms, the typical usage of each tool, and most ...
8
votes
4answers
2k views

To what extent is SQL's language accessible via ArcGIS tools?

That question just sounds so redundant... At any rate, I have been asked to explore the uses of SQL in ArcGIS. We use an SDE DB for all server-side storage and DB managing/large-scale editing. ...
6
votes
1answer
1k views

ArcObjects C#: Create Random Points fails with ERROR 999999: Error executing function

I am having trouble running some ArcObjects C# code that calls create random points. I would not be doing this in ArcObjects, but I am suffering with the same issue using Arcpy as seen here: ...
3
votes
1answer
167 views

How can you map counties to congressional districts?

Given county A, I need to know what congressional districts are within it.
7
votes
2answers
850 views

Process a raster with multiple geoprocessing tools in arcgis 10 using python - flow between processes

I'm writing a short python script that includes processing rasters with different geoprocessing tools in ArcGis 10, for example, the three processes below, is this best way to use multiple tools ...
4
votes
3answers
3k views

Batch shapefile merge, with adding and calculating field

I have over 60 shapefiles, all in their own folders. I'm looking to add a field titled "Name" and then populate it with the name of the shapefile. I want to be able to do this so that I can then ...
3
votes
3answers
445 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
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. ...
11
votes
4answers
4k views

How to develop GUI in Python for geoprocessing?

I want to develop GUI in Python for geoprocessing, but I don't know what is the best GUI tool or library (Tkinter, PyQT, wxPython) for geoprocessing? Can I use PyQT for GUI programming in ArcGIS?
9
votes
4answers
4k views

How to find Clusters of N Points Within X Distance?

We have tried two methods of cluster analysis: Cluster and Outlier Hot Spot ... but neither meets our specification which has these 3 parameters: a Set of Point features N points within a ...
6
votes
2answers
3k views

Cannot get rid of lock on file geodatabase and feature class created in Python script

I have a python script, (for ArcGIS 10), that creates a new file geodatabase, creates a new feature class in that file geodatabase and then reads data from an SDE feature class to populate the new ...
5
votes
1answer
5k views

Watershed Delineation

I am trying to delineate just the catchment area of some lakes, and am wondering the correct way to do this. I already have a filled DEM, along with a flow direction and a flow accumulation raster. Is ...