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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22 views

What is the correct term or terminology for calculating variables within a defined distance of a point?

Imagine I have a dataset where each row is a single property with information like square footage, price, the lat/lon, etc. For each row, I would like to identify all other properties within a defined ...
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1answer
142 views

Scripting GeoServer with Groovy

I'm trying to add a script to GeoServer so I can create my own rendering transformation. However, I'm having trouble installing the scripting extension as outlined here. The script uses the GeoScript ...
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75 views

Geographic coordinates; Different latitude & longitude format?

I am having trouble identifying what format these coordinates are in. Is it DMS? Latitude Longitude N49-46.7 W086-56.4 N51-28.7 W000-27.7 N40-51.0 W074-03.6 N01-21.6 E103-59.4 How do ...
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1answer
120 views

Create a large polygon from separate smaller polygons

I am working with ArcMap 10.3 using a Basic license. The Problem: I have a vast number of sequential, individual polygons that I need to merge into larger pieces. Every piece that contains the same ...
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1answer
333 views

Clear Environment Settings in scratchWorkspace

I have several mxd files with a bad default geo-processing environment. The current and scratch workspaces are set to a location that no longer exists. I'm trying to use python to clear those settings ...
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1answer
49 views

Exporting shapefiles from large shapefile by field name?

I have a table with thousands of polyline segments. The lines in this file are named, and there are about 100 unique line names in total. I want to create a separate shapefile for all of the segments ...
4
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2answers
232 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 ...
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0answers
59 views

Last vertex incorrect after Dissolve (QGIS)

I have a polyline layer which is in individual segments in some areas, i.e. there are two line features which share an end vertex location but are separate database features. The line is a route that ...
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3answers
690 views

Using Intersect Tool in ArcGIS gives empty output? [closed]

I'm currently searching for correlations between pavement conditions and crashes on highways. I created a 420ft buffer layer for my selected highways and now I am intersecting it with a layer for ...
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1answer
43 views

What geoprocessing tool to use for analysis of multiple line feature classes?

I have many line feature classes that I am trying to use in an analysis. For sake of the question I will just use a basic example. I have a line feature class of State Roads for the state of Florida....
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1answer
62 views

Difference between layers using ArcGIS Geoprocessing?

I'm wondering if there is somewhere to get an output shapefile based on the difference between two layers. This would basically be the opposite of the clipping tool. for example. I have a roads ...
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2answers
348 views

Clip/Intersect in QGIS 2.8.2 resulting in empty attribute table

I'm trying to clip two layers together (a layer showing the area of a city and a layer showing a political boundary running through that city) in order to show the location of the political boundary ...
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0answers
181 views

Canceling a Geoprocessing Tool (Arcobjects)

I am trying to cancel all the ArcMap geoprocessing tools executions (GPTools) using an ArcObjects Extension in C#, but it doesn't seem to work or do anything for any GPTool that I am trying to cancel. ...
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2answers
264 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?...
5
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1answer
488 views

QGIS Count lines in polygon ( to be part of a graphical model )

My problem is very easy to understand but I can't find a solution. I'm actually working on the spreading of a local optic fibre network. These fibres will be contained in plastic tubes buried in ...
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1answer
195 views

How to fix unusual initial DEM input values and derivative raster output values in SAGA GIS without rescaling?

I am trying to run elevation derivative tools on a provincial DEM provided by the Ontario Government website (Ministry of Natural Resources and Forestry) and I am getting strange values when bringing ...
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1answer
28 views

Combining sections of a polyline in QGIS whilst summing a attribute table column

ive got to condense a sewer layer from junctions (small sections of pipe between manholes)to one section of pipe between the manholes and sum the lengths of all the sub sections. Does anyone know of ...
2
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1answer
231 views

How would I determine my search radius when conducting a Topographic Position Index in SAGA GIS?

When running the TPI tool in SAGA, I get this parameter-entry window: Under the section highlighted in the red box, what do these parameters mean? Do the search/neighbourhood grouping parameters mean ...
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1answer
430 views

Difference Tool (Polygon) Not Working

Okay so I'm using QGIS 2.10 (a couple of versions out of date, but shouldn't matter much, eh?) on Windows 7, and I can't figure out this supposedly a very basic geoprocessing tool DIFFERENCE. I'm ...
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1answer
404 views

Creating Topographic Position Index in SAGA GIS?

I am trying to create a TPI from a DEM tiff file in SAGA but keep getting the following result: I'm just not sure what I'm doing wrong.
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1answer
585 views

Joining multiple tables with the same columns

I have one main shapefile with many various attributes. It does include an ObjectID to act as the basis for a join/merge. This shapefile was distributed out to multiple people, who each worked on ...
3
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1answer
420 views

Clipping a vector line shapefile in QGIS based on a raster shapefile?

I have a vector line 'straten' shapefile which I want to have cliped based on raster shapefile "Luchtfoto 2016". Because some streets are running out of tmy raster, I want to have the vector cliped. ...
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1answer
51 views

Separating two parallel lines using ArcPy? [closed]

I have two parallel lines, with a distance x between them. I need to split the line in two using arcpy Example of the lines
2
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1answer
291 views

Creating local coordinate system from orthorectified image from drone

My plan is to use a drone and pix4d to map an area and produce a top down image. I have some position data that is in its own reference frame / Coordinate system. My question is what suggestions or ...
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0answers
61 views

Strip Map Index Tool: output has no geometry

I'm having a problem creating a grid index in ArcMap. I'm encountering the same problem with both the Strip Map Index Features (first choice) and Grid Index tools. Steps: Open the Strip Map Index ...
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0answers
307 views

Create a georeferenced PDF using a shapefile and add informations in R

I created a georeferenced PDF using a shapefile and OK no problem, but I'd like to know if is possible to insert a title inside a pdf (in top position "My geo PDF"), points of interest (pts.sampling) ...
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0answers
466 views

Merging multiple polygons in ArcMap?

I'm searching for an ArcMap (10.2) Tool that merges multiple polygons over a given distance (in the end term I want to select all polygons with an area greater than 7ha). To illustrate my use case ...
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2answers
96 views

Equivalent to ArcPy's PointGeometry in ArcObjects?

I'm trying to select a county feature from a nationwide counties layer using Geoprocessor's managed SelectLayerByLocation coclass: internal static void GetCountyName(IPoint centerpoint, out string ...
2
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1answer
52 views

Store and retrieve date of geoproccessing in feature class

I have geo-processing models and scripts that are run on existing feature classes. The models and scripts truncate(delete) the rows in feature classes, and then append new rows. The geo-processing ...
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0answers
102 views

Different FIPS Codes Versions for Counties [closed]

I am a SQL guy writing queries for supply chain consultants. I know little about FIPS. I found in our database, at least three versions of FIPS code for counties. The number of FIPS are from 3100 to ...
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1answer
49 views

Add map parts to existing map

I have 4 scanned maps in geotiff format and need to create a single map using OkMap with the 4 geotiff files. How can I add adicional map files to a single map using OkMap?
3
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1answer
153 views

Naming convention for scheduled geoprocessing outputs

I'm planning on implementing several geoprocessing python scripts that are scheduled to run nightly. The scripts will either output new feature classes, or update existing ones. The environment is an ...
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0answers
50 views

Polygon Buffer in QGIS [duplicate]

I am having trouble creating a buffer around a polygon of a county in QGIS. When I run the "fixed distance buffer" geoprocessing tool, no features are returned in the 'buffer' shapefile that is ...
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1answer
95 views

Can I interactively type multiple string records as input for GP Widget?

I am running a GP script tool where a required input is set up as a RecordSet for the user to type multiple string values that will be used by the tool for further analysis. However, when I publish my ...
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2answers
103 views

Split lines by zones

I have a Roads line feature class and a Zones polygon feature class. I want to make a model that splits the Roads lines using the Zones polygons. The output is to be lines, just like the original, and ...
0
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1answer
26 views

ArcMap 10.3 Clipping lines creates simplified output

As you can see from the image, the original lines (Yellow) have been drastically simplified (Red) by using the clip command from the Geoprocessing menu. The highlighted line is the clip area. The ...
2
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1answer
249 views

Optimal Site Selection Vector Files

I have 5 different polygon vectors: All have over 20.000 features; All have multiple attributes; All overlap each other at least more than 80%, but are shaped differently; All display information of ...
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1answer
333 views

Filling null attributes with mean attributes of neighboring polygons using ArcGIS Desktop?

I have a layer of polygons, where in some polygons there is missing data (null). I would like to fill these missing attributes by the average attributes in neighboring polygons. Is there a simple way ...
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0answers
37 views

Duplicating Features based on dates from CSV file

Recently I was able to get some data that has some time elements attached to it. This data is for estimated house values by census tract and replicates itself every month when available. The purpose ...
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0answers
106 views

Cancel/pause a Geoprocessing Task without rolling back?

I have a Snap Geoprocessing task that is for about 57,000 points to lines. The issue is I need to restart the VM it is running on. I have no idea how long it is going to run as it has been going for ...
0
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1answer
135 views

Rotating fishnet made of minimum bounding boxes?

Given a grid of points, I had to create something similar to a fishnet, and did so using the buffer -> minimum bounding geometry option as listed here (option A). Since my grid comes from Climate ...
1
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1answer
44 views

When Executing Snap Tool, Automatically select feature when Multiple found [closed]

I currently have 50,000+ points that have to be snapped to lines in my fiber network. Issue is I do not have the time (or patience) to sit here and make the selection every time there are multiple ...
5
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1answer
3k views

QGIS merge layers: error on data type

I am getting the following error: The log is not providing lot of information. What is meant by data type? I can't figure out where the problem is situated. The layers I want to merge are all ...
3
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1answer
120 views

Alternative to XTools' Split Polygons?

I have a model in ArcGIS 10.3.1 which splits a large (> 1,000) polygons by a road network (as polylines). Currently, I am using Xtools' Split Polygons, but this would require an end-user to have a ...
2
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1answer
502 views

Reading data from raster layer obtained via WMS in QGIS

I need to use some geological data from the WMS service http://mapas.igme.es/gis/services/oneGeology/IGME_EN_Geology/MapServer/WMSServer using QGIS. I've connected to the service and I can see the ...
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1answer
101 views

Forcing table output by geoprocessing to be added to TOC?

In ArcMap I can set a Geoprocessing option to add geoprocessing output to my table of contents (Geoprocessing > Geoprocessing Options...) If this option is enabled my script output will be added to ...
2
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2answers
109 views

Issue reporting in QGIS

I've had an issue with the Processing plugin over that last few days. QGIS has been really slow to start (about 15 minutes in some cases) and I then get a message that says "Plugin Processing: the ...
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1answer
69 views

Changing GP parameter value type dynamically for ModelBuilder? [closed]

I'm building custom geoprocessing tool with ArcObjects where output value can be feature class or table with GPFeatureSchema as default schema. But the type of an output dataset depends on some option....
1
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1answer
85 views

Creating layer representing non-intersecting area of two shapefiles in QGIS?

I have a shapefile for a country and a shapefile representing the mobile network coverage of an operator in that country. I would like to create a shapefile that represents the parts of the country ...
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1answer
82 views

Geoprocessing JoinField C# Usage Error

I'm trying to join a single column from one feature class to another inside a File GDB using C# and the ESRI.ArcGIS.DataManagementTools.JoinField class. I've gotten several other geoprocessing ...