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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73 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) ...
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34 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 ...
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46 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?
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2answers
101 views

Seeking list of Geoprocessing tools that take advantage of 64 bits?

I am looking for a list of ArcPy tools that will actually utilize 64 bit structure. I know some of the tools will just run a 32 bit version inside a 64 bit program. I could have sworn I have seen ...
4
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1answer
42 views

How to handle two onclick events that not both are fired?

I make a web application with ArcGIS API for Javascript (version 3.15) to access a geoprocessing service. The service is executed on an onclick event by the user, because the clicked position is used ...
3
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37 views

How to intersect two polyline layers? [duplicate]

I have two line shapefiles that overlap 50% of the time. I want to generate a new single shapefile that includes attributes of both datasets AND no duplicate segments. A short segment from one layer ...
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1answer
27 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 ...
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0answers
16 views

Area Normalizing Percentages after Intersect

I am summarizing Census data within custom drawn polygons. I am summarizing age data (percent male 24-29, etc.). As with whole numbers, I assumed I would need to area normalize the data AFTER the ...
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4answers
56 views

Reformat Attributes In a Feature Class

I am using ArcGIS 10.3 for Desktop. I received a feature class with attributes, as illustrated in the first table below. I am seeking a geoprocessing tool or process that would help me reformat ...
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1answer
29 views

Using Generate Near Table and keep the ID attributes

I try to use near table between two datasets to calculate the nearest distance. The original data is as the right one, and the near table generated is as the left one. The problem is the attribute of ...
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0answers
46 views

How to add Geo PDF header to a PDF rendered with mapnik?

I rendered a PDF with mapnik and I am now trying to add geospatial header information to the PDF. I tried the method add_geospatial_pdf_header() from mapnik.printing.PDFPrinter. I do get some Geo PDF ...
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2answers
165 views

Error while Geoprocessing with Geometry Objects

I'm trying to use the distanceTo() mehtod to return the distance between the centroid of a polygon and a line, but I keep getting this error: "AttributeError: 'Point' object has no attribute ...
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40 views

How to leave out cities with less than X number of observation in ArcGIS?

I would like to generate some quintile maps based on the averaged sentiment score in each city in the US. However, not all the city has the same number of data point. How can I tell ArcGIS to show ...
0
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1answer
90 views

DBMS Table Not Found with SQLite and ArcGIS 10.3

I'm trying to set up a spatially enabled SQLite database with ArcGIS 10.3. I've gone through the following steps: Create a database using the sqlite3 utility: sqlite3 mydatabase.sqlite Load the ...
3
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2answers
138 views

Calculating area in polygons NOT covered by other polygons in ArcGIS Desktop?

I have two polygon shapefiles, one is county boundaries and the other is the National Flood Hazard Layer that shows areas in the floodplain. The flood layer is an extremely complex and challenging ...
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0answers
36 views

Problem with Viewshed analysis in ArcObjects

I want to execute the Visibility Analysis Tool using ArcObjects 10.3. I tested the tool in ArcMap and it works great with the test data I provided, hence it should work as well in ArcObjects code. The ...
0
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1answer
48 views

Reshaping automatic polygon edge based on reference layer using ArcGIS for Desktop?

i have two polygon layer, one for Region administrative"Reference layer", and the second is administrative border is governorates. Governorates border is not identical with Region border. So there is ...
3
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2answers
98 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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3answers
178 views

Forcing Python Toolbox tool to break loop and do cleanup when user clicks Cancel?

I am writing a Python tool that perform heavy tasks in a loop. When the user clicks "Close" I want to break the loop, perform some cleanup, and then finish. Consider this example tool that counts ...
3
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1answer
56 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 ...
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2answers
48 views

Geoprocessing results outside of defined extent [closed]

I am running ArcGIS 10.2 Desktop Several different models I have built and tested successfully previously are demonstrating the same problem. They appear to execute slightly to the South of the ...
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2answers
106 views

Error adding row - sequence size must match size of row

I have this table with one row timestamp_pretty 3.1.2014 9:13 timestamp 1,38874E+12 msgid 3 targetType A mmsi 205533000 lat 53.4346 long ...
0
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1answer
46 views

Broken Project Data Source

I have built a Script Tool (from a modelbuilder model) in ArcGIS 10.2 which works perfectly fine in ArcGIS. However, I am getting the following error message when I try to publish this script tool ...
2
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1answer
60 views

QGIS 'Difference' tool return empty layers

I've been using QGIS's difference tool to create some new layers. All was going well until I hit a number of layers which return a blank layer with no features when I use the difference tool. The ...
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0answers
50 views

Python toolbox - get lat and long from tables

The objective of the python toolbox is to convert a bunch of tables to point feature classes. The user selects the tables (parameter 0 - multivalue). The user selects the output workspace where the ...
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0answers
25 views

DEM Mosaic Dataset Processing - Output Surface and Hillshade raster to same extent as input raster tiles

I have a lot of DEM rasters, tiled adjacent to each other. I would like to make a surface and a hillshade raster to the same extent as each DEM tile. Current issue: processing on a tile-by-tile basis ...
4
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1answer
71 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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2answers
105 views

Expand raster nodata area (shrink values area)

I need to fix a raster that's been inappropriately resampled along the nodata edge. The bad data area is narrow, pretty much a single cell. The value range is too variable to use a simple "erase less ...
5
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1answer
178 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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0answers
35 views

Reclassify a density surface a variable range of values

I have a set of points with a 'weight' value. I want to create a density surface from these points, classify it with 5 or so bins (actual number is arbitrary, but smaller than the default output ...
0
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1answer
43 views

How to show 100K results of a complex query on map without using graphics

I need to show all 100K points on the map without using any sort of clustering. Since they are too much they cannot be shown using a graphics layer. since they are result of a very complex Oracle ...
0
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2answers
60 views

Counting point objects near each feature in polyline layer of ArcMap?

I am having a little trouble finding a strategy for this. I have a polyline layer with Fiber segments, each have a FiberID. They are not unique, sometimes there will be two segments with the same ...
0
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2answers
71 views

Drawing map from XY coordinates in CSV and exporting it to JPEG using ArcPy?

I have a csv file containing about 40,000 rows of data with X, Y (longitude and latitude) data. It is US data, and I have downloaded a state.shp file on which the X, Y points can overlay. I am able ...
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1answer
68 views

Eliminate Polygon Part tool doesn't eliminate part - a bug?

I'm using the Eliminate Polygon Part tool in ArcGIS to remove dry land surrounded by water (aka islands). Tool Inputs: Condition: AREA Area: 50,000 Square Feet Percentage: 0 Eliminate contained ...
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56 views

Measuring Geodesic Distance in ArcGIS for Desktop? [closed]

I'm working with only a basic/student license for ArcGIS 10.1 on an ocean mapping project. I've created a grid that covers all ocean area, capturing various characteristics within that grid (the ...
4
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2answers
199 views

Iterate an intersect between polylines and polygons in QGIS using Python script

I have a shapefile made up of 127 separate polygons that represent different districts. Overlaid on this layer is a polyline layer of 2800 streets, some which are completely bound by the polygons and ...
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1answer
72 views

Running custom geoprocessing tools written for ArcGIS 10.x for Desktop in ArcGIS Pro?

I am developing geoprocessing tools for Arcgis Desktop 10.3. I also have ArcGIS Pro installed . Can I run geoprocessing tools (written for 10.x) in ArcGIS Pro? Is it theoretically possible? Can ...
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0answers
25 views

Connecting 1 point to many points following a route

I am using ArcGIS 10.2 Basic. Is there a way of connecting 1 point (A end point) to many other points (B end points) but following an existing line/route. The B end points all have a field that ...
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84 views

Calculating Aerosol optical thickness from Landsat 7

EDIT I have added question down I am reading one paper and I found method to retrive AOT from landsat 7 image This should be simplifield equation, because they assumed observation zenit as 0. Than ...
0
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1answer
41 views

Which operations must be performed using the Geoprocessing API in ArcGIS Pro?

I want to migrate .NET application from arcobjects to Arc GIS Pro SDK. As I understand some operations such as creating tables and feature classes, creating and modifying fields need to be performed ...
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2answers
65 views

How to show two layers with different projections in QGIS

I have a shapefile that define X and Y in meters, not lat and lon. Then I have another file (CSV) that stores points locations as lat and lon, e.g. 30.4, 2.2. I want to load these two files as two ...
2
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1answer
67 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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0answers
73 views

Creating polygons using mask layer?

I looked at this question, but it only answers part of my problem. I want to create Thiessen polygons based off of the green points within the blue polygon boundary ONLY. I've set the Processing ...
1
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1answer
32 views

How to match river direction with DTM?

I have rivers that some times they do not match their real direction based on the DTM, and they need to be flipped. Is there any way to automatically match river direction based on the DTM in ArcGIS ...
2
votes
2answers
66 views

What kind of operation will merge attributes from a point with a containing polygon?

I need to develop a process for merging the attributes of each point in a SDE feature class with a polygon in a SDE feature class that contains the point to create a third feature class. The third ...
3
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2answers
126 views

Which SRIDs to use for what tasks?

I try to understand the idea behind the different Spatial Reference Identifiers. I understand that the different SRIDs identify different projection views on the earth and that they are important for ...
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1answer
65 views

Feature class to feature class code

I have some code that will take a ArcGIS 10.2.2 feature class and post a copy of it in a different geodatabase. My code is set up so the end user can pick the feature class they want the model to ...
3
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3answers
197 views

Remove islands and completely surrounded polygons after polygonization with QGIS

I have a line map of buildings in a city. I was able to correctly polygonize the buildings in QGIS with the Polygonize processing algorithm. All the holes/islands became features as expected. Now I ...
1
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1answer
61 views

PostgreSQL equivalent of ArcGIS “Eliminate” function?

I am looking to eliminate small slivers in a shapefile dataset using PostgreSQL. What would work to dissolve features < 0.1 hectares into the neighbour with the longest shared boundary (1) or the ...
3
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1answer
165 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 ...