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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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 ...
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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?
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473 views

Where is this raster offset being introduced in the QGIS processing toolbox?

I'm using the (awesome!) processing toolbox in QGIS 2.0 to reclassify some NoData values in a raster from -9999 to 0, but at some point in the process there's an offset of about 0.2 degrees being ...
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200 views

How does the geoprocessing results window store the tasks?

Yesterday I was working in a single mxd all day, performing dozens of calculations and other analysis using multiple tools. A lot of it was trial and error, so when I found the correct combination I ...
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537 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 ...
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675 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 ...
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1answer
5k views

Distinction between Difference and Clip tools in QGIS?

What is the primary distinction between the Difference and Clip geoprocessing tools in QGIS?
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425 views

Reduce processing time in Erase function using Arcpy in IDLE

I am processing 18,000 feature classes (saved in a file GDB), each with ~500 records (polygon features) in ocean areas, and I am running a script to remove area overlapping with the coast, using the ...
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8k views

arcpy.MakeFeatureLayer in-memory layer still exists when subsequent step fails during testing

When I used arcgisscripting to create in-memory output layer with gp.makefeaturelayer, I would put it in a try/except block and delete the gp object in the except piece when the makefeaturelayer would ...
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1answer
547 views

Simulate (Mock) GPS Tracks

I have the following scenario: 1) I need to create GPX files for use in testing of a mobile device. 2) The tracks to be described within will span large distances over long time periods (i.e. it's ...
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1answer
1k views

How to achieve equivalent to Dissolve from ArcGIS for Desktop using ST_Union?

I am trying to achieve an equivalent to the Dissolve tool from ArcGIS for Desktop using ST_Union from PostGIS but it seems I am not getting expected result. I have one table which has certain ...
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2answers
1k views

Python Script to convert a mass of KMLs to a single fGDB

I have a mass of KML files, approx 350+ that I need in a single fGDB. I lifted a string of code from ESRI help to attempt to do this - I got it working to the point of creating all the individual ...
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1answer
620 views

Good practices for storing connection info while deploying geoprocessing tool on Server

I have a geoprocessing tool written in python. It will be deployed on ArcGIS for Server 10.1 as a GeoProcessing Service and it's processing workflow includes some manipulations with data in SDE ...
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1k views

How to split features?

I would like to split a shapefile in qgis according to how the polygons overlaps. Don't know how to though? See pic for explanation:
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2answers
122 views

Extracting Overlapping Parts of Single Polygon Layer using QGIS?

I have a single polygon layer with over 200 buffers with a lot of overlapping areas. I want to use QGIS to create a new layer representing the overlap. I've seen several questions that are similar, ...
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634 views

Batch Converting ASCII into Feature Classes using shapefile lists [closed]

Problem. I have 413 ASCII files totalling 4 billion points, and my system cannot handle converting them to MULTIPOINT so that I can generate Terrains. Therefore I would like to create 12+ subsets of ...
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1answer
1k views

GDAL bindings problem with ArcMap 10.1 Python tool

I'm really getting mad with this. ArcGIS sometimes can be so just...irritating! Forgive me if this question is by any means duplicating this one or similar ones, but I really can't find my way out of ...
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673 views

Large point to Polygon by buffer-join-buffer-dissolve issues

I have a few large datasets (about 10 million points) which I am buffering, then joining, dowgrading and finally buffering and dissolving. This is all in a model which works fine with sample smaller ...
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2answers
205 views

Erase features from feature classes based on record ID?

This is the challenge: I have two feature classes, which have the same number of polygon features, that when overlaid form concentric "rings." I need to erase the inner circle from the outer circle ...
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2answers
2k views

Importing ArcPy taking many seconds and code is really slow for GeoProcessing Tools 64-bit (ArcGIS 10.1 SP1)

I've installed ArcGIS10.1 SP1 and whenever I import arcpy (on Pywin console or Eclipse PyDev) it takes aprox. 15-20seconds. Is this normal? I don't think so... I had Python 2.7.3 64-bit previously ...
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1answer
1k views

Schema Lock issue when using ITable.AddField via ArcObjects

During a process I am running, I sometimes need to create a field that is missing in an attribute table. Unfortunately, the program is complaining that the table I am adding the field to has a schema ...
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1answer
2k views

Input of in-memory geometry object to Dissolve tool in ArcPy script throws Error 000732?

In an arcpy script, I run a Union on a list of geometry objects. The output is set to an empty geometry object. The Union runs fine. What I am trying to do is then feed that output into the ...
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785 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 ...
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2answers
2k views

Access geoprocessing service via REST, get JSON back

I have an ArcGIS Server 10.0 geoprocessing task with a REST endpoint something like this: http://server/arcgis/rest/services/MyService/GPServer/MyTask The task takes a parameter. I was hoping I could ...
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1answer
888 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 ...
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2answers
884 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 ...
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1answer
5k 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?
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How to cut a shape file?

I want to use a shape file of the Corine Land Cover. This covers all of Europe, but I am only interested in the area of Scandinavia. How can I cut this file using free software (preferably a ...
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1answer
288 views

need to find max value among fields AND PRINT FIELD NAME

I have a Census dataset that contains eight fields with percentages. I would like a python script that finds the highest value between the eight fields, but also tells me which field the highest ...
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1answer
2k views

How do I fill gaps in a raster to zero value cells?

I am trying to add some forest elevations to a DEM using ArcView. I have converted a polygon feature class of a forest into a raster with the same resolution as my DEM. Then I reclassed the forest ...
4
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1answer
3k views

Performing Geoprocessing SQL Queries in QGIS from a PostGIS Database

This may be a dumb question, but is there way to run a PostGIS geoprocessing SQL query in QGIS? Specifically, I am thinking of running SQLs such as ST_Union, ST_Split etc etc. I have tried the ...
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1answer
1k views

How to declare ArcSDE workspace for Geoprocessing tool in ArcGIS 10.1 using ArcObjects and c#?

What is the proper way to declare an ArcSDE workspace for Geoprocessing tools in c# .net? I am using ArcGIS 10.1 SDE (MS SQL) on SQL Server 2008. I want to write code so that every night the server ...
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1answer
76 views

Geoprocessing tools fail though CRS same, prj-file ok, edit mode off, topology valid, etc

For my layers none of the QGIS geoproccesing tools (difference, intersection, etc. all give empty attribute tables) work, though I've checked for all (?) error sources (as in the title). Then I tried ...
4
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1answer
142 views

How to cut unwanted area (polygon) using ArcGIS for Desktop?

I am using ArcGIS 10.2 for Desktop with a Basic level license. There are two overlapping polygon. Polygon A (with line stripes) and Polygon B (in beige color). Polygon A and Polygon B is a separate ...
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3answers
945 views

ArcServer 10.1 - Publishing C# Executable as a Geoprocessing Service

I am trying to publish an arcobjects C# executable as a gpservice. We did this in 10.0 by adding it to a toolbox and hitting publish. Using ArcCatalog in 10.1 you must first run the script before you ...
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596 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 ...
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1answer
2k views

Clipping MrSID files in ArcGIS Desktop?

Does anyone have experience subsetting/clipping a large NAIP imagery file in MrSID format? Some of the NAIP files we have are by county and they have really large file sizes. The files are from the ...
3
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1answer
369 views

getResultImageLayer is not working

I am trying to obtain the shapefile output that I am receiving from the gpTool, which is hosted on the ArcServer, and placing it on the Map using, gp.getResultImageLayer(jobInfo.jobId,"final_shp", ...
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2answers
163 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 ...
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2answers
558 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 ...
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246 views

How to use Memory layers in QGIS plugin to store results of Geoprocessing tools

I'm building a plugin to perform Multi Criteria Analysis (yes another one...). As part of my workflow intersecting vectorlayers is needed. I use QgsOverlayAnalyzer.intersection (a pity union is not ...
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1answer
2k 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 ...
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2answers
366 views

Event layer to feature class - fastest method?

There are three methods to convert the output of a Make XY Event Layer to a Feature Class: Copy Features Feature to Point Feature Class to Feature Class Which one is the fastest method? I need to ...
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2answers
1k views

Not able to create a geoprocessing package in ArcMap using my own Network Dataset and associated data

I went through the following two examples to get an idea of how to create a custom, local Routing Task . . . This is a walkthrough that takes you step by step through the creation of your first ...
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3answers
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Is there a website in which I can do geoprocessing online?

Is there a website in which I can do geoprocessing online? I know there are a lot of sites that allow the visualisation of your data online or some basic map-making, but I need something more... Kind ...
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1answer
1k views

Running Model within ArcMap using VBA?

I would like to Run/execute a model within ArcMap 9.3.1 vba. I can run it in vba by exporting out the VBS script and importing it into vba, however I'm wondering if there is an easier way to just call ...
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2answers
949 views

Problems Integrating Sub-Model into Master Model

I am attempting to integrate a iterative model into a master model to merge all of the outputs of the iterative model into one feature class. However, when I attempt to set the output of the sub-model ...
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2answers
88 views

ArcPy Empty Buffers

I have written an ArcPy script to process a DTM into a point feature class to be used in Landform classification and ranking. It successfully produces what I need most of the time. Randomly the ...
2
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1answer
327 views

Clipping buffers to census tracts

I have donut buffers generated to protect anonymity of household locations. They need to be clipped so that they are only inside the census tract that the original point was in. The code takes about 8 ...
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2answers
598 views

How to erase polygon from another in QGIS

I want to erase the pink polygon from the blue polygon. I've tried clip, difference, and symmetrical difference. Clip produces an empty polygon. Difference produces just another blue polygon.