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.

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7
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677 views

Reordering polygon shapefile permanently?

I've written a script which produces a polygon shapefile of the extents of all the thousands of rasters in our library. I want to organise the FID so that the files with the largest extents are on the ...
5
votes
4answers
1k views

Is there a way to convert 3D polylines to 3D points in ArcGIS?

I need to convert a huge number of very dense (densified to 1m) 3D polylines to 3D points. I need each vertex along the line and no duplicates (two of the same XYZ coordinates) if possible. Is there ...
3
votes
2answers
822 views

How to combine polygons in a vector with GRASS?

I need to combine polygons of similar geological classes which are stored in a vector file called geology. I was looking for somethiing like "union selected features" or similar. In the GRASS Book ...
7
votes
3answers
411 views

Is there a way to Query what's “NOT THERE”?

If you have land tenure mapping, and you're only interested in the areas for which there are no polygons in a region, is there a way to query these areas out and create a shapefile from them. A ...
1
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0answers
143 views

How to get SplineWithBarriers to work in C#

I have been having fits trying to get SplineWithBarriers to work but to no avail. My environment: Windows 7 64 bit Visual Studio 2010 Team Edition ArcMap Release Version 10.0 Product Version: ...
2
votes
3answers
505 views

How Can I Correctly Transform (Unproject?) from LCC

I am a complete n00b when it comes to GIS, so please bear with me. I started out by posting here: http://stackoverflow.com/questions/6963991/how-can-i-transform-the-coordinates-of-a-shapefile . In ...
6
votes
1answer
1k views

How to eliminate gaps in the ArcGIS union operation?

I have a layer that has nested polygons in them. I want to aggregate the polygons. I do this using the Union function. I use the "No Gaps" option when I perform the union. However, when I overlay ...
6
votes
2answers
905 views

How can you insert a table record without geometry into a feature?

I am working with ArcGIS and Python and trying to append table rows into a featureclass. You cannot use append and you cannot just make a tableview of the featureclass and then try to append it in. ...
4
votes
1answer
78 views

using SPOT Messengers in a corporate environment

We're looking into using SPOT Messenger GPS devices in a corporate setting for our wilderness field staff. GlobalStar, who operates Spot, has a commercial XML data push service which will dump ...
2
votes
1answer
164 views

Geoprocessing service - empty memory after calling

I'm following this sample for ADF libraries ...
1
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1answer
2k views

Append and Merge tools issues in Arc 10

Append and Merge tools issues in Arc 10. keep getting error 000278 - failed on input OID ...... (could not write value to one field or the other). Does anyone know how to fix this? Never had this ...
5
votes
3answers
978 views

arcpy taking longer and longer in a loop

I am looping through an amount of point arrays, creating data on the fly. The features/arrays, are largely similar in size. One thing I have noticed, is that when I start the process, the time it ...
1
vote
1answer
89 views

Online resources for creating shp files performing basic GI functionality

I am looking to build polygons, based on files containing a grid of points. The representation of the polygon would be an aggregation of the points. As the end wares are ESRI, I was wondering if ...
5
votes
3answers
373 views

Interactive “For each … Do” loop?

What is the most direct and straightforward, hopefully interactive, method to conduct a For each item Do... loop, where the input list is a selection of polygons? A word about "interactive". I'm not ...
0
votes
1answer
491 views

Any issues in converting a AutoCAD 2010 DWG to FeatureClass?

I have a small .NET script that uses ArcObjects such as CADtoFeatureClass to convert DWG files to ESRI FeatureClasses. This standalone program has been working great with DWGs created in previous ...
2
votes
2answers
6k views

How can I export county level data in a .shp file to a text (csv) file in ArcMap?

I have a shape file created as per the answer to my previous question, which includes county level means for each county in the US. How can I now export this data in a .csv file, e.g. with just the ...
5
votes
1answer
361 views

Combined area of all features within features of another layer

I have a grid shapefile (basically, a half-degree grid of the world, where each cell has a unique id number), and a set of files with features. I want to record for each grid cell, all the areas ...
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
704 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
577 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
323 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
301 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
610 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
503 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
131 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
720 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
387 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
672 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
323 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
5k 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
669 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
734 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
371 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
545 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
564 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
453 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
425 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
810 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
669 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
698 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 ...