Questions tagged [geoprocessing]

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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1answer
3k views

Filling gaps in raster to zero value cells?

I am trying to add some forest elevations to a DEM using an ArcView (Basic) level license of ArcGIS Desktop. I have converted a polygon feature class of a forest into a raster with the same ...
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2answers
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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 ...
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3answers
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R Raster package: write NetCDF with time dimension

I am writing a rasterbrick with multiple layers to a netcdf file using the raster package in R: writeRaster(gridfile, "Data", "CDF", overwrite=TRUE, varname="Data",varunit="mm.d-1",longname="...
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1answer
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How can I debug a geoprocessing service on the server?

I've a geoprocessing script that I'm trying to get working. I've turned on Show Messages, so I can see how far in the script I've gotten before the submitted job fails, but it's not helping, as I'm ...
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3answers
834 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 ...
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2answers
344 views

Determining best neighbourhood search radius for Topographic Position Index (TPI) for predictive soil mapping?

I'm not sure how to determine the best input values for a search radius to create a TPI for the purpose of predictive soil mapping. Would this depend on the spatial extent of the area I wish to map?...
4
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1answer
867 views

Problems with nested loops - How to start from 0?

I have : 12 lines feature classes (lineFC) A polygon feature class (grid) Another polygon feature class with much bigger polygons (gridDivision) The process: Select one lines FC from a list Select ...
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2answers
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Displaying estimated computational time when running tools in ArcGIS for Desktop?

I'm almost positive I have set up models to display the estimated runtime/computational time for the models/tools in the past, but I can't seem remember how to turn on this option. I've looked around ...
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1answer
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Simplification Tolerance value field is missing from Simplify Polygon tool of ArcGIS for Desktop? [duplicate]

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 ...
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2answers
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Merging Attributes of points into polygon using ArcMap?

I am using ArcMap 10. I have points layer which the attribute looks like this: FID Shape ID Lat Long 0 Point 2065 -5.51666 106.48333 1 Point 2319 21.93333 120.73366 I also have ...
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Efficiently checking for feature overlaps with ArcPy? [closed]

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 ...
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1answer
443 views

Custom c# GP Tool ArcGIS Server 10.1 - build for 'Any CPU', x86, or 64bit? Does it matter?

I think I understand most explanations of these targets, but I get confused in the context of ArcGIS customizations like this because what we are compiling has to work in conjunction with ArcGIS, not ...
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2answers
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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 ...
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2answers
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How to auto-add new values to unique values classification values range?

I am using ArcGIS Desktop 10.1, ArcGIS Server 10.1 & SQL Server 2008 software. I am adding the query layer and directly publishing to ArcGIS Server and accessing the map in a JavaScript ...
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1answer
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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 ...
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4answers
757 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() ...
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1answer
7k views

How to measure distance between 2 GPS points in Pandas?

I have two data frames both containing x,y GPS coordinates and I'm trying to determine if they are within a 1/4, 1/2 and 1 mile of each other. Like this: # COORDS1 DAY LATITUDE ...
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1answer
2k 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 ...
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1answer
95 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
494 views

Custom Geoprocessing messages/progress indicator Arcgis 10.2 Modelbuilder?

I was wondering if anyone knew a way of customizing the progress indicator for tool developed in Arcgis's model builder. I have a complicated tool, which uses a feature selection iterator, and I would ...
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1answer
3k views

Points of LinearRing do not form a closed linestring - one point intersection

I'm trying to index geojson data using elasticsearch. There is some kind of polygons that causing an error: "Points of LinearRing do not form a closed linestring". Looks like it happens because ...
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2answers
374 views

“Levelling” elevation data coinciding with polygon?

I have a shapefile containing building geometries (polygons) and a elevation dataset. The elevation data doesn't perfectly match the buildings. I want to "flatten" the elevation data so that ...
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2answers
2k 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 ...
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2answers
620 views

Moran's I z-score in ArcPy

I have a ArcPy script to calculate Moran's I several times (50 to be precise). However, I am not interested in the Moran's I value, what I need is the z-score returned by the tool. Even though the ...
4
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1answer
831 views

Polygon to Raster taking longer in script than in ArcMap?

I have a large dataset that I am working with. Basically I have a table with 900,000 records that I join to a geodatabase feature layer, then convert that to a raster. This process takes a total of ...
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3answers
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Incorporating SQL Statements in ModelBuilder?

I have a point data set where each point has a unique operator associated with it. I'd like to select by attribute = operator name and generate a new shapefile for each operator containing only the ...
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2answers
518 views

Slow performing ArcGIS Near tool returns -1?

We are running an ArcGIS 10.0 geoprocessing script written in Python that (as part of many steps above & below) runs the Near tool. Both the input and output datasets (shapefiles & personal ...
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3answers
1k 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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1answer
770 views

Hosting geoprocessing tool on geoserver

Like ArcGIS Server, is there a way to host, geoprocessing tools onto Geoserver?
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2answers
2k views

Is it possible to publish a geoprocessing services that uses a custom gptool on ArcGIS Server 10?

I have developed a custom GP tool in C# which does a bunch of processing on a given layer. It works great in ArcMap on all machines that I have deployed it to. I created a model which uses this tool ...
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3answers
2k views

Converting ESRI Web Client JSON to Standard Feature Class With Python Geoprocessor

Is there a function exposed by ESRI's python geoprocessor that converts the JSON format used in the various web clients to a valid feature class. Clearly, the function exists because something is ...
4
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1answer
258 views

Adding and calculating X and Y attributes in integer raster using ArcGIS Spatial Analyst?

I have an integer raster created from an input floating point (LiDAR) raster by multiplying it by the (elevation) value of 100 (any other value higher would not work) Thus, I can add a "double" ...
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1answer
81 views

Attribute data disappearing after converting points to line

I am currently working on a project strictly in Modelbuilder. I am trying to teach myself how to use it. I don't yet know how to use Python and am still in the early learning stage. My question has ...
4
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2answers
5k 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; ...
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2answers
1k 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

Creating iterative Select by Location, Summary Statistics tool using ModelBuilder?

I do a lot of proximity analysis using "select by location" and would like to cut down on the effort spent each time doing this! I have put together a model using ModelBuilder that: Iterates over ...
4
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1answer
607 views

Strange things are afoot with the "Eliminate Polygon Parts' tool

I am working with a polygon that is the result of a buffer and has a bunch of internal doughnut holes: What I want is this: I am using arcpy.EliminatePolygonParts_management() to fill in the holes ...
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2answers
3k 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 ...
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1answer
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How to use ICalculator with a pre-expression in C#

Another wonderful predicament. I am trying to use an instance of ICalculator to update a field based on another field. Textbook stuff. Unfortunately, the example in the SDK for C# is a bit lacking. ...
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2answers
238 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 ...
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1answer
1k views

ArcGIS - Geoprocessing creating temporary files (e.g. “g_g193”). What produces these and how can they be cleaned up?

I have a couple of ArcGIS extensions that are running a lot of geoprocessing models with a mix of ArcObjects. I've noticed that the some, as of yet unidentified, geoprocessing steps are creating ...
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2answers
271 views

Completely dicing feature class in ArcGIS Desktop?

Every so often I have to update my city's FEMA data, which requires running the Dice (Data Management) geoprocessing tool on the buffered floodway features so that it can be more easily processed as a ...
4
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2answers
207 views

Issue with QGIS 2.10.1 Clip and Intersect Tools

Having an issue in QGIS 2.10 -- clip and intersect don't seem to be working correctly. I am trying to show zipcode by a legislative district in Florida. When I clip the zipcode shapefile by the ...
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1answer
522 views

Count points in polygons using QGIS modeler

it is the first time that I’m using the QGIS graphical modeler and I found some troubles (QGIS 2.14.1). I’m trying to count points that intersect with polygons in a vector grid, but filtering the ...
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3answers
2k views

How to simplify borders between polygons in shapely?

I have some fairly complex, and not completely accurate shapes stored as shapely Polygon objects. I'm trying to find the common borders, which should be as easy as finding the LineString returned from ...
4
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1answer
714 views

Access ArcGIS Server directories in geoprocessing service

I would like to save a file in the output folder on the ArcGIS Server and then provide a link for the user so he can download it. I have two problems: I can't figure out how to access the output ...
4
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2answers
96 views

How to merge geographically similar polygons?

I'm working with zoning data at the parcel level for a city, e.g., each parcel has a zoning attribute. My goal is to create a contiguous zoning map without intersections from roads and highways. I ...
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1answer
306 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 ...
4
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1answer
705 views

Geoprocessor object won't execute

I've tried several different approaches to getting the simple geoprocessing package that I created to execute from my C# project . . . ESRI.ArcGIS.Client.Tasks.Geoprocessor _localGPService = ...
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1answer
854 views

Why does a geoprocessing service fail every other time it is run?

I have a ArcGIS Server 10 geoprocessing service right now that takes in a string and runs a parameterized query to SQL Server 2008R2 through pyodbc. The service works, but only every other time. I can ...

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