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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9
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3answers
5k views

Divide a complex shape file into a grid

I have a decently detailed shapefile with polygon/multipolygon features (the file is about 500mb). It's actually a shapefile of the entire world, with the features representing coastlines. I need to ...
1
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0answers
17 views

Using ArcMap's report system on large scale? [on hold]

I'm trying to set up a reporting system based off two layers - point and polygon feature classes. The system would run this report on each polygon that had a value in a specific field (polygons ...
3
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1answer
47 views

How to create checkboxes to select multiple inputs?

I am working on a script (to publish as a geoprocessing service) that will take multiple feature layers and use them as inputs to the ExportCAD_Conversion tool. What I ultimately want is a set of ...
0
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0answers
1k views

ArcGIS 10.1 - Error No spatial reference exists

I'm encountering a new error on some geoprocessing. It originally showed up while running commands in arcpy but now it crops up whenever I run some tools. I've been using the Extract by Mask on some ...
4
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3answers
2k views

How to enable multithreaded processing in qgis 2.2

I have found multiple links that appear to say that this now exists in qgis 2.2, but it appears that it's only using one core to full capacity. This is running on Ubuntu 14.04 The current process is ...
3
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1answer
221 views

Is there a decent algorithm in QGIS Process Modeller to create a grid?

I am using Process Modeller to automate merging several vector layers and then creating a grid to cover the extent of the merged layer. There are functions which already exist which are not listed in ...
0
votes
1answer
204 views

What to use as split field or target workspace with Split tool?

I'm trying to use the split tool in arcgis 10.1 but I dont know what I should use as the split field or my target workspace. W:\S&P\s&p techs\Emily\Geodatabase\Geodatabase.gdb this is what I ...
2
votes
1answer
438 views

Problem when executing Dissolve method in ArcEngine

I'm always having a problem in GP.execute() when trying to execute this method. Here is my code: Friend Function DissolveFeatures(ByVal pInFLayer As ESRI.ArcGIS.Carto.IFeatureLayer, ByVal ...
1
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2answers
350 views

How to extend polylines to the nearest point

Hi could anyone tell me a way of getting my polylines to search for a point within a certain number of meters of their start/end points and extend to it? edit: There was some broblem uploading a ...
5
votes
6answers
16k views

For every point, distance to nearest polygon of type X?

In ArcGIS how might one calculate as an attribute value the distance to the nearest polygon of type X? Say we have a point layer of wildlife observations and we want to know how far each of them is ...
23
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5answers
5k views

Is there any model builder in QGIS or other open source GIS?

Like the ModelBuilder of ArcGIS for Desktop to run simultaneous geoprocessing tools, is there any model builder available in QGIS or any other open source GIS software?
6
votes
3answers
7k 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 ...
0
votes
1answer
257 views

Field Mapping in ArcPy gives Error in adding input field to field map?

I have a process in which I am joining a DBF table to multiple shapefiles to create a new output of some selected fields which result from the join. I am new to fieldMapping and need help figuring out ...
3
votes
1answer
74 views

Running PostGIS ST_ClusterWithin on large dataset?

I am trying to use the new ST_ClusterWithin in PostGIS 2.2 to help me aggregate building polygons that are within 5 metres. The source data has > 13million polygons. I ran the following query on a ...
5
votes
2answers
72 views

Identifying a cluster of polygons based on attributes

I'm trying to identify a cluster of contiguous parcels that, when combined, add up to at least a given size and, when combined, have an assessed property value less than a given $ amount. I have a ...
3
votes
1answer
367 views

gp.CreateFeatureClass(..) and gp.CopyFeatures(..) isn't copying all fields of feature class

How do I get the ArcGIS 9.3 geoprocessor to copy all of the fields of a feature class? Here is a description of what I'm trying to do: I am modifying an existing script created by a developer not on ...
1
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1answer
184 views

ArcGIS Dissolve gives Error 999999 on one computer but works on a different one

I'm trying to run the geoprocessing tool "Dissolve" on a single feature class in a File GDB, yet I'm getting the error 999999 "the operation was attempted on an empty geometry", but there are no empty ...
0
votes
1answer
180 views

How to calculate frontages of city parcel data in ArcMap 10.0?

I need to calculate the length of polygon frontages (along streets) from our city's parcel (i.e. lot) data in order to do an analysis on lot frontages in various zoning districts. How can I do this?
3
votes
1answer
46 views

Passing in complex parameters to geoprocessing tool?

I'm currently using the Statistics geoprocessing tool (called Summary Statistics in the UI) from ArcObjects. This tool accepts two "complex" (for lack of a better term) arguments: Case fields ...
1
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1answer
49 views

QGIS Processing Script will not Validate

I am writing a script for QGIS that will identify the perimeter of only external facing walls. The script is probably a little long to post directly into this post, but it is accessible here. The ...
3
votes
1answer
157 views

IGPutilities in IGPFunctions?

In Esri's area calculation sample of IGPFunction implementation they use IGPUtilities but they don't release the instance. On the singletons page in SDK help they list GPUtilities as a singleton ...
1
vote
1answer
771 views

Difference between Spatial Join Tool and Spatial Join Function in ArcGIS Desktop?

I am curious to know if anyone can shed some light on the difference between ArcGIS' Spatial Join geoprocessing tool (found in Analysis -> Overlay toolbox) and the Spatial Join 'wizard' (found by ...
1
vote
2answers
13k views

Error:The type initializer for 'Oracle.DataAccess.Client.OracleConnection' threw an exception

I am developing custom geoprocessing tool (class-library project) on ArcGIS 10.2. This project uses Oracle.DatAccess from ODP.NET 1.0 . This is a simple tool which queries - oracle 10g database and ...
4
votes
1answer
51 views

Making output table of Python script tool be intermediate file to another model?

I have created a Python script tool using ArcPy. It has a File Geodatabase Table as output. I want to add the script to a new Model in ModelBuilder in ArcMap. The Table output should be an ...
1
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3answers
138 views

Geoprocessing Tools - I can't get Intersect/clip to work

I desperately need to intersect two layers, one of 32 large polygons (towns) the other of many smaller areas with those towns, so that I can classify and make calculations on the smaller areas sorted ...
2
votes
1answer
211 views

How to write shapefiles more efficiently in GeoScript?

I've created a geoscript (in groovy) to create a shapefile from generated geometries with certain attributes. It's a heatmap consisting roughly 65.000 polygons with an attribute storing the ...
1
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1answer
29 views

Arguments error when running LineDensity scripts in arcpy

I'm trying to use LineDensity tool on polyline features. The shapefile is small and includes some invalid geometries. The code I use is an adaptation of an ArcGIS Help script. Here is my code: ...
0
votes
1answer
197 views

Weighted Overlay - passing parameter as text error?

For some reason when hardcoding the save path for the wieghted raster just before runtime it works perfectly. Like such... arcpy.env.cellSize = "90" arcpy.env.workspace = r'G:\Xcel\Route ...
10
votes
4answers
9k views

What ArcGIS geoprocessing tools support exporting tabular data to CSV?

I have found that most if not all geoprocessing tools that allow tabular output are limited to geodatabase tables and DBF files for supported output formats. Are there any that also support CSV ...
1
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1answer
396 views

Minimizing error when buffering unprojected data in ArcGIS Desktop?

If I buffer hundreds of unprojected WGS84 points across the US by say, 3 miles, will I get accurate areas returned (3 x pi x r) for each of the circles created? I suspect not. If not, what would be ...
1
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3answers
34 views

How to find the output of a geoprocessing operation in ArcGIS?

I am merging some features using the Geo-processing tool in Arcgis 10.1. The tool requires that the output is saved in a folder. Although this was done after the process ended successfully i could not ...
12
votes
11answers
19k views

Exporting feature class into multiple feature classes based on field values using ArcGIS for Desktop?

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! ...
1
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1answer
42 views

How to get latitude and longitude data from the borders of a state in R

Here is my problem: I need to get longitude and latitude data from the borders of the Brazilian states. With this data I can plot a map of each Brazilian state and, of course, of the whole country. I ...
5
votes
1answer
935 views

Setting “REAL” work/scratch workspace in ESRI/ERDAS etc

I thought the issue was only in ARCGIS but it seems that ERDAS does the same thing. I have my C with 1.7TB and my D with 10TB and my scratch set to d:\scratch but still ERDAS (and ESRI) fills my ...
0
votes
1answer
274 views

How to apply the 'Integrate' tool (data management) using arcpy

I try to integrate two features (shapes) with their ranks using arcpy. -- arcpy.Integrate_management() -- I don't get a clue from the explanation/example in ArcGIS help. It's straight forward, ...
2
votes
1answer
25 views

How do you start a Toolbox tool from ArcObjects?

I want to put a couple of toolbox Tools onto an AddIn toolbar. I tried to reference the ProgIDs in the toolbar section of the Config.esriaddinx, but that didn't work (only saw blank spaces where the ...
1
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0answers
42 views

Script Error 'Invalid Pointer' in Spatial Analyst Tool

I have ArcGis 10.3 (previously 10.2 version) running on Windows 10 (previously Windows 8). My GIS licence is provide by my company where I have an intership, so I can't just uninstall/install back the ...
2
votes
0answers
64 views

ArcGIS .Net GP tools debug

I'm developing a GP Tool with .Net ArcObjects SDK. I would like to debug my GP tool but I haven't figured how. I have tried to enable background processing in Geoprocessing Options and attach ...
6
votes
1answer
254 views

PostGIS “Overlay” Style Union, not “Dissolve” Style

I'm trying to use PostGIS to do a 'union' of polygons. When I Googled "PostGIS Union", I found the ST_Union function, which performs what I would call a 'dissolve,' not a Union. What I actually want ...
18
votes
6answers
4k views

PostGIS: Select features that do NOT intersect

This seems to me like such a simple question (and it probably is) yet I cannot seem to find an example that gives me the answer. Using PostGIS, I just want to select points that fall outside of ...
2
votes
1answer
45 views

Calculate data from a set of raster files

I need to make some calculations with data from raster files saved in my postgis database. I need, build a map, using the average from a set of these raster files, for example. Besides, I need to ...
2
votes
2answers
7k views

Exporting county level data in *.shp file to 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 ...
7
votes
2answers
193 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 ...
6
votes
3answers
273 views

Improving ArcGIS Results saving and manipulating

The ArcGIS Results Window is an incredibly useful way to keep track of what has been done in a particular map. I use it constantly as a means of documenting the essential parts of a project's ...
4
votes
2answers
213 views

Determining flow amount along stream using ArcGIS Desktop?

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 ...
2
votes
1answer
58 views

Are QGIS Intersect and Clip Tools Broken?

I was getting this problem with a complex map so I have created a simplified map with two layers. Accessible greenspace contains a couple of hundred small, mostly isolated, polygons with one (name) ...
1
vote
1answer
24 views

Table Select does not work in Model Builder, when using parameter in SQL

I'm trying to create a model that uses values from a single table, in order to perform a different calculation for each raster in a file. Each raster is represented in the table by a row that contains ...
1
vote
0answers
28 views

Geoprocessing Tools Create Empty Shapefiles in QGIS? [closed]

I seem to have great difficulty using the geoprocessing tools in QGIS. Sometimes they work fine, sometime no matter what I do I get a null result, even though I can see I should be getting a ...
4
votes
2answers
3k views

Publishing geoprocessing tools to ArcGIS for Server gives ERROR 001488?

I have been trying to publish a geoprocessing tool to our new ArcGIS for Server 10.1 with SP1. I configured the serves to not to copy data to server when publishing services. The tool ran well and ...
0
votes
1answer
33 views

Support for Foreground and Background geoprocessing in ArcMap tools?

If not all ArcGIS tools support both foreground and background Geoprocessing, then how can I tell whether a tool will run in the foreground or run in the background?