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Questions tagged [overlapping-features]

Features that share some or all of their spatial location with other features.

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2
votes
2answers
725 views

How to find overlapping points and add their name value to each other?

I'm working on a point-layer where points represent the start and end point of lines (streets). Since some streets are joined to each other at the startpoints/endpoints (because they're next to each ...
3
votes
2answers
1k views

How to remove border line from one shapefile in interaction with another one

I'm new in QGIS, I have two shapefiles Northern Ireland (NI) and Ireland and there is overlapping with theirs borders. Is there same way that could use border of NI for example and give me output ...
1
vote
1answer
408 views

Totaling polygon area with overlapping buffers in ArcGIS for Desktop?

I'm using ArcGIS 10.3 to classify landcover within a 30-meter buffer of houses. I categorized this with the Image Classification toolbar, then converted the raster to polygon for calculation purposes. ...
3
votes
1answer
9k views

Calculating percentage of overlap between two different layers

I have two different layers (Layer 1 and Layer 2) both made up of many thousands of polygons. Many of the polygons in Layer 1 overlap to differing degrees with Polygons in Layer 2. I need to calculate ...
0
votes
1answer
4k views

Layers not showing up together in ArcGIS even when in same coordinate system [duplicate]

I have two layers in my project and both are being set to same coordinate system. But still they both son't show up together. Can someone please help me out in this. Projected Coordinate System: ...
8
votes
2answers
4k views

Merging overlapping features using Geopandas?

I have a Shapefile with overlapping features. Is there an easy way to merge them with geopandas? I found a way with shapely, but I would like to do it with geopandas directly.
1
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1answer
468 views

Calculating Feature Overlap Area within Single Shapefile

I have looked throughout this site to find a method to calculate the overlap area of multiple polygons within a single shapefile but haven't found one that works for my case. I've tried the intersect ...
0
votes
1answer
56 views

Fix all overlap errors without changing number of features

This set of features are owned lands that have been individually added as features, naturally they aren't perfectly placed I have fixed every big overlap and now only small lines overlaps are left, ...
0
votes
1answer
54 views

ArcGis: Count categorical variable per nuts3 by overlapping point-file and polygon-file

Download from this website the NUTS_RG_60M_2006 files (shapefile) and the csv-file T_DischargePoints_West.csv (source) and save them on your computer. Open them through ArcGis and plot xy-points. You ...
7
votes
2answers
6k views

Removing overlapping part of polygons using QGIS?

Here is what I'd like to achieve in QGIS. Is there a processing tool to remove the overlapping part of polygons? It is also very important that they do not get merged during the process and that ...
4
votes
1answer
800 views

Max value of overlapping Polygons

Licence: Advanced Version: ArcMap 10.3 In my shape are thousands of overlapping polygons. My goal is, to generate a new output in which the biggest overlapping value represents a new polygon/...
0
votes
1answer
1k views

Select one feature of multiple overlapping features (here polygons) on a Leaflet map

I have a map with multiple polygons rendered on it which can overlap eachother. I use leafletPip.pointInLayer(point, layer) from https://github.com/mapbox/leaflet-pip for determining which polygons do ...
5
votes
1answer
215 views

How to create random points in overlapping polygons?

I have a shapefile with ~1840 polygons, many of which overlap. I'm trying to find a way to create 1000 random points per polygon, based on polygon ID. I don't see a way to this using the GUI Random ...
1
vote
1answer
568 views

Point in overlapping polygons using R

I have shapefile with about 15,000 polygons. Some polygons overlap with other polygons. Most of them don't overlap with any other polygon. I also have a points data set with about 100 Million points (...
2
votes
0answers
275 views

Overlapping despite topological editing

I am digitizing polygons from an ortophoto. In the snapping options, I enabled 'topological editing' and 'avoid intersection' of the polygon layer. I digitized some not-adjacent areas and then made a ...
1
vote
1answer
220 views

Weighted polygon-feature-classes combination/overlay analysis using ArcGIS for Desktop?

I have several (sometimes, not always overlapping) Polygon Feature Classes which are all weighted/ranked through a field from 1 to 10 (10 is best). I would like to combine/overlay these layers them, ...
0
votes
1answer
1k views

Subset of lines that are within polygon in R

I have a large SpatialLinesDataFrame (~23000 features) and a SpatialPolygonsDataFrame (8 features). I want to make 8 new variables, each with the lines that are on the same locations as the polygons. ...
1
vote
1answer
805 views

ArcGIS - how to join attributes of overlapping polygons

Given two tables each with unique attribute sets, how do I merge the attributes of one layer onto the other, or create a new layer containing the attributes from both? The image shows my two layers: ...
2
votes
1answer
2k views

Finding all polygons overlapping polygons from another layer using MapInfo?

I have two polygon layers. One is All_India_Locality layer which has attributes:{Locality_ID,Locality_Name} and the other is All_India_Pincode layer which has attributes:{Pincode,City} I want to find ...
0
votes
1answer
80 views

Counting overlaps in ArcMap?

How can I count/find overlaps in ArcMap 10.4 but between area and line features (for example buildings and roads? Using topology I can find overlaps only between line-line or area-area feature.
1
vote
1answer
758 views

How to extract values from a raster stack within overlapping buffers?

In R, I have a raster stack with 6 variables. I would like to extract the mean and maximum value of each variable at 300 coordinates within a 500m buffer radius and a 1km buffer radius. In ArcGIS 10....
3
votes
2answers
390 views

Count duplicates in ArcGIS, ArcMap 10.4

How can I find how many duplicates I have in my dataset (areas, lines, points) using ArcMap? With topology I can find overlapping objects, but I want to find duplicates. Are there any tools from ...
4
votes
2answers
175 views

Display multiple identical polygons (with different attributes) on map

I need to create maps of multiple species in a certain area. However sometimes multiple species occurr in the exact same area. This results in two identical polygons on top of each other. Many of ...
6
votes
1answer
966 views

How to split overlapping linestrings?

I'm new to PostGIS and a bit lost... I work with linestrings that sometimes overlap, for example: I'd like to distinguish these linestrings by splitting them like Google Maps do: I was thinking ...
2
votes
1answer
1k views

Is it possible to intersect multiple polygon shapefiles to identify areas where two or more layers overlap?

I have 19 polygon shapefile layers, with some occasionally overlapping with one another. As a final output, I would like a shapefile that includes only the overlapping areas between 2 or more of these ...
0
votes
1answer
54 views

Consolidating many-to-one overlapping polygon feature values into another polygon attribute using ArcGIS for Desktop?

I have a situation similar to the one here: Using Spatial join for many to one relates in ArcGIS for Desktop? however the desired end product is a dissolved/aggregated feature that collects up all ...
0
votes
1answer
200 views

How to group overlapping polygon features to generate unique feature ID?

I have a group on onshore leases that are overlapping and I want to generate a field attribute so that all the polygons (or centroids of the polygons) that overlap have a unique ID so that I can ...
1
vote
0answers
37 views

Query regarding overlapping polygons [closed]

I have one shapefile which has 78765 polygons of different year, path and row. I want to remove the polygons which has more than 80% of overlap. Can somebody help me because symmetrical difference, ...
3
votes
1answer
430 views

PostGIS ST_Difference function returns wrong geometry in result

I have a strange st_difference behaviour. I’ve got two overlapping lines (each one has two points), but st_difference result is complete geometry of the first line. The code to reproduce is here: ...
8
votes
2answers
3k views

Summing attribute values for areas where multiple polgons overlap using ArcGIS Desktop?

I have one shapefile with many polygons (at least 100). Each polygon has a value. Almost all these polygons overlap with each other. I want to sum the values of the polygons in the overlappings depend ...
2
votes
1answer
65 views

Extracting the geometry of the parts not intersecting from 2 shapes overlapping each other in postgresql?

This seems simple enough, yet i do not find a clear awnser on that peculiar matter. What i am trying to do is to extract the parts of a shape that doesn't intersect with another when the 2 of them are ...
1
vote
2answers
172 views

Define if two polygon layers are overlapped completely in ArcGIS

I will try to be as detailed as I can. I have created a Script tool. In this tool, I have two parameters: a) the Landuse and b) the Flight. In the ToolValidator, I used the following code to check ...
1
vote
1answer
50 views

Applying the attributes of polygons to a line segment

I am trying to classify a line segment (pipeline) based off of surrounding features. I have created polygons that contain the necessary attributes (count of total nearby houses) that overlap this ...
0
votes
4answers
175 views

Count Points on Points using arcpy

I have a point feature class which contains features scattered around the city, with some of the points intersecting other points. These intersecting features are correctly different features (they ...
1
vote
1answer
50 views

Using overlap with different layer file to create a simple Y/N field in attributes of another layer

I have two layers, which I wish to use one of to educate and populate an attribute field in the other layer with a simple Yes/No for if they overlap in terms of location. Is there a simple way to do ...
7
votes
3answers
2k views

Alternative to ST_Union/ST_MemUnion for merging overlapping polygons using PostGIS?

New to PostGIS so I trust this is a very basic question but can't seem to find the right solution. I have a materialized view consisting of ~4 million polygons. Some of them overlap. I need to merge ...
1
vote
0answers
115 views

How can I use ST_Contains/ST_Overlaps with non-simple lines?

Following the SQL of the accepted answer to How to get smallest line segments from intersection + difference of multiple overlapping lines? copied below. I'm having some difficulties assign the ids of ...
-2
votes
1answer
73 views

Deleting layer which is overlapping in ArcMap? [closed]

I had merged two shapefiles. How to delete a shapefiles which is I give a red sign? It's like overlapping another shapefiles so I got trouble when I colouring them.
6
votes
1answer
268 views

How to get smallest line segments from intersection + difference of multiple overlapping lines?

Inspired by this question, and this excellent answer. I have multiple overlapping lines and want to extract the complete intersection of them. So from this sample data SELECT id, geom INTO stackex ...
6
votes
1answer
637 views

Showing density of overlapping features via transparency in ArcMap?

Below is a famous map produced by the Facebook team, which shows the connections between their users. Where there are multiple overlapping features, the lines show more brightly, giving a clear ...
12
votes
1answer
9k views

Determining if two polygons are overlapping in Google Maps?

I'm working with google maps and polygons, but I have to validate that polygons are not overlapping each other. I have a function that returns TRUE when a point (lat, lng) is inside a polygon, but it'...
1
vote
1answer
70 views

Partitioning value (100 tonnes/ha) of underlying shapefile to multiple features in same shapefile in areas that overlap using ArcGIS for Desktop?

I have tried searching for an answer but can't think of a way to generalize my question to other scenarios. Looking for answers using ArcMAP 10.1. I currently have two shapefiles. One contains ...
2
votes
1answer
285 views

PTV_Mercator correctly recalculated to WGS84 EPGS:4326 but not correct on map

I have recalculated PTV_Mercator (PTV Spherical Mercator EPSG:505456) coordinates to WGS84 EPGS:4326 coordinates in Excel. And when checking them on Google Maps they show up correct. But after ...
0
votes
1answer
83 views

Combining overlapping polygons to make a raster

I'm working in Arcmap10.3. I have some polygons layers that over lap that I want to merge to one polygon layer. Then I want to convert it to a raster in the end. I want the top layer of the 4 input ...
3
votes
1answer
149 views

How to join specific attributes of two polyline shapefiles that overlapped but information is stored differently (QGIS)?

I have just started using QGIS (2.12.3) and I need your help. Overall, I have two polyline shapefiles with the same geometry (the one layer overlaps the other), but the information is stored in a ...
4
votes
2answers
459 views

Deleting overlapping inside same polygon using QGIS?

I have same polygon partially overlapped: How to delete overlapping and merge it to same area? I am using QGIS 2.4.0.
2
votes
2answers
115 views

Create polygon label on both sides of polyline overlaping polygon

The image below represents areas which are as a final product exported to PDF as individual PDF's cut on the black line. The labels are created in a usual way. I need to generate labels and after ...
4
votes
1answer
1k views

Create frequency polygon from overlapping features in another polygon

Mac 10.9.5; QGIS 2.8.4-Wien; history and unioned data, in GDA94, zone 55 here. I have a polygon of fire history with a number of overlapping features. I want to create a new polygon for fire ...
1
vote
1answer
337 views

Calculate the overlapping percentage two web feature service poygons

Is it possible to calculate the overlapping percentage of two polygons coming from web feature service? I overlayed two WFS layers in my openlayers map. The two layers have same data but collected at ...
1
vote
3answers
799 views

Creating rings from existing polygons using QGIS?

I have been given a shapefile from a client that features pivots, yet they were recorded as 10 circles overlapping. The software my company uses requires that these polygons be rings that don't ...