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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170 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 ...
0
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0answers
44 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
62 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
125 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, ...
3
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3answers
226 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
69 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 ...
-3
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2answers
49 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 ...
1
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2answers
120 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 ...
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1answer
50 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
105 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
51 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
27 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
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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2answers
131 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
votes
1answer
294 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 ...
0
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0answers
42 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
44 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 text ...
0
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2answers
73 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
103 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
111 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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0answers
65 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
votes
2answers
272 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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0answers
26 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 ...
2
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0answers
109 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 ...
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1answer
43 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
82 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
votes
1answer
109 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
80 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
vote
1answer
38 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
67 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
votes
2answers
140 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 ...
1
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1answer
67 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
votes
3answers
242 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 ...
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1answer
77 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
votes
1answer
190 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 ...
0
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0answers
44 views

Zonal statistics as table fails using Geoprocessor and C#

The above code snippets fails while calculating the Zonal statistics as table using Geo processor in C#, butit works in ArcMap. Any ideas where/what I did wrong?
0
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1answer
65 views

ArcPy empty shape?

I have a small script to search through a featureclass and copy and entire row to another featureclass. Its working well, in that I get all of the attributes for the row, but there is no geometry for ...
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0answers
54 views

Difference tool

I am new to QGIS, however yesterday I had the Difference tool working and today I cannot get it working! I have followed the same method but no result. Is this common? How can I go about making this ...
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0answers
105 views

Adding rasters with GeoTools

I'm using org.geotools.process.raster.AddCoveragesProcess class, to add two raster's with same resolution and buonding box. I get the following exception java.lang.IllegalArgumentException: Range ...
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0answers
17 views

Population distribution on the basis of area for different polygons

I am facing a very unusual problem of distributing population of a village over some polygons in the same village but on the basis of area . Let me give you an example-- -- I have census population ...
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0answers
77 views

Using linear regression for geospatial data?

Say, my database has three columns. A: county (300 rows with 300 counties as index), B: X (some independent variable in continuous scale, which is the average of everyone in that county), and C: Y (...
2
votes
1answer
457 views

How to calculate WGS84 (EPSG:4326) area in C# or SQLGeometry?

I am not normally a GIS developer, I am just helping out with a bug and I am stumped on what is going on here, could I get some help please. I have two calculations, one in 4326 (WGS84) and one in ...
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2answers
1k views

Using arcpy.MakeFeatureLayer_management on Shapefile and Feature Class

The larger goal with this code is to create a temporary polygon based on the calculated coordinates (which it does), then to see if the polygon intersects with the "unobscured_FC". After I run the ...
1
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1answer
76 views

Acquiring administrative country border data with a given resolution

I want to be able to find out which country a given (lat,long) pair falls into, but I don't need this to be extremely accurate and especially coasts can be quite crude as false positive hits will be ...
8
votes
9answers
3k views

Maximizing the use of CPU

My script is intersecting lines with polygons. It's a long process since there are more than 3000 lines and more than 500000 polygons. I executed from PyScripter: # Import import arcpy import time # ...
1
vote
0answers
103 views

How add two coverages with different bounding-box and different resolution using geotools

I'm developing a Java application with some spatial analysis operations. One of the operations is to add two coverages. But how can I add two coverages with different bounding-box and different ...
2
votes
1answer
43 views

Spatial Join - Grid Containing Points, Display Highest Value Only

Sorry if this has been answered--I couldn't find anything specific to my question, however. I have a polygon grid layer and a point layer which contains numerical values (1-4) I want to use a ...
0
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1answer
42 views

How to merge csv and county shape file?

I have some data in a csv file. One of the interested variable is test done (1=done, 2=not done). There is a variable of county name in which I would like to join with a county shape file. I only ...
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1answer
99 views

How does majority algorithm works in ArcGIS

I'm trying to understand how does the majority resampling works in ArcGIS, they write that "The MAJORITY option, which performs a majority algorithm, determines the new value of the cell based on the ...
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0answers
27 views

Geoprocessing in web worker

I would like to use a geoprocess using the esri js api from inside a web worker, can this be achieved? I didn't manage to pass the geoprocessor to the web worker because it seems that you can't pass ...