Questions tagged [overlapping-features]
Features that share some or all of their spatial location with other features.
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1answer
26 views
Calculating overlapping of lines using QGIS?
I have a GeoPackage that includes series of lines, each line corresponds to the itinerary of a person from point A to point B. I would like to know how to calculate the overlapping of lines (the ...
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2answers
36 views
Checking for overlapping geometries in one table using PostGIS?
I have a table with geometries where some geometries overlaps with other geometries in the same table.
I already found an answer for this question here:
Check whether table has overlapping polygons, ...
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1answer
30 views
Buffering without overlap using QGIS?
Goal: Buffering line features, where the buffer "ends" when an other buffer is about to overlap. Simply: Buffering without overlapping and creating a smooth border between the buffer.
My first ...
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1answer
33 views
Identifying polygons in two separate layers with a large (>85%) overlap
I have two separate layers and I want to identify polygons that overlap more than 85%. When I try "Extract by location" tool it gives me the polygons that overlap even in small areas.
I am using QGIS ...
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1answer
21 views
Calculating area of overlap between two polygons in separate layers using QGIS?
I have 2 layers with 1-1 polygon. The polygons are overlapping.
How do I calculate the area of the overlap using QGIS?
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0answers
23 views
Consolidating points and retaining most attribute data using ArcMap?
I have multiple points with the exact same attribute data (coordinates, date, time) and the only data that really differs is the individual animal ID. I want to create another layer where all points ...
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0answers
40 views
Overlapping points in QGIS 2.18.24
On my map I used delimited text layers to plot 5 different categories of points, each a separate color. It seems like QGIS slightly spread out points in each category but completely overlapped points ...
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1answer
33 views
Lines overlaping in same layer - PostGIS
I have lines overlapping in one layer as in image below. How do I delete one of these lines and leave the other one in the dataset?
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0answers
20 views
Using merge rules in field mapping of ArcGIS Merge tool? [duplicate]
I am working with ArcGIS and have below simple two point features that I want to merge to get the right side feature class. I give merge tool the first two feature sets, and in field mapping section, ...
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3answers
57 views
Adding value of overlapping point features?
I have several different point feature classes (shape files) spread on a grid, each point (located at grid centers) has a attribute named value. For example, assume we have a 3x3 grid, which has nine ...
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0answers
20 views
Separating multiple overlapping polygons using ArcPy? [closed]
How do I separate multiple overlays in a polygon using arcpy, according to image?
Each overlap must be a single polygon
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0answers
31 views
Why 2 layers in the same projection do not overlap in QGIS? [duplicate]
Can someone please explain why my project CRS which is in PRS92 (EPSG:3124), and the layers are in the same projection but do not overlap. But when I change one of my layers in WGS84, the values are ...
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1answer
104 views
Create raster out of overlapping buffers within the same shapefile in QGIS 3.0
This question has been asked before but none of the provided solutions work for me.
I have a bunch of points. Around the points I have created buffers which overlap to differing degrees.
Each ...
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1answer
29 views
Geographically Weighted Regression with overlapping polygons
Is it statistically correct (or possible at all) to calculate a spatial regression with (partly) overlapping spatial areas?
I have market areas as the spatial unit with different sociodemographic, ...
4
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1answer
157 views
Fitting known size polygons into irregular polygons using ArcGIS Desktop?
I have a task that sounds simple, but I just can't get through the last step. I need to find suitable areas where wind farms that have a size of 500x150 meters, could be placed. The restrictions are ...
3
votes
1answer
80 views
Determining validity of odd polygon using ArcObjects?
Using ArcGIS 10.4.1 a user in our department created a polygon and saved it to a feature class as shown below. The area covered is correct as at times it could overlap itself. I have calculated the ...
3
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2answers
113 views
Removing Intersection of Buffers in Same Layers
I have created a series of buffer regions around line segments in QGIS (in my case a road network):
The buffers are in transparent blue with the darker circles being where the buffer segments overlap....
3
votes
1answer
68 views
Select features in a polygon that covered the most by features of another polygon layer QGIS
I am working in QGIS. I have 2 polygon layers,
One layer is the parcel polygons layer for a county called "Parcel"
The other layer is the building footprints polygon layer for the same county called "...
3
votes
1answer
37 views
Calculate the sum of the areas of polygons within bigger polygons from another layer _ QGIS
I would like to add in the attributes of each of my roof boundaries (red polygons, which sometimes overlap) the sum of the surfaces of the (green) surfaces.
I have already tried "join attributes by ...
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0answers
72 views
Calculate percentage overlap of polygon features in two layers QGIS
I have two polygon layers (building footprints and parcel boundaries) for a county.
I want to join the parcel ID numbers to the attributes of the building footprint features based on location and ...
4
votes
1answer
84 views
Summing attribute values of overlapping polyline portions in QGIS 3.0.3
Note:
This is basically the same question that I asked before in Summing attribute values of overlapping polyline portions in ArcGIS Desktop?, but this time, I'm trying to solve the same problem using ...
1
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1answer
53 views
Extract a line segment out of a polyline on the basis of numeric values (distances) defined as attributes [QGIS]?
I have a set of points (red in the picture) in a shapefile containing an ID as well as two numeric values representing distances in Meters for each point.
After creating polylines for each point via ...
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0answers
50 views
Select events that represent the most recent work on roads
I have a question on Stack Overflow where I ask about Selecting events that represent the most recent work on roads. So far, I have been provided an answer that seems to work, although it is quite ...
5
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1answer
72 views
Select point by number of overlapping features
I have this polygon layer converted to lines, and had the line nodes extracted using Extract nodes. The resulting point layer has several overlapping points because of common borders with adjacent ...
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0answers
9 views
Polygon Multiple FID attribute for one
I am using ArcMap attempting to find the total area of this multi-part polygon, however in the attribute table there are multiple FID corresponding to the same polygon. They all have the same acreage ...
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2answers
60 views
How to extract multiple polygons from a layer that overlap with a point?
I would like to get attributes of polygons that overlap with a point. This is to see on which street the lanterns are located, so if they are on a crossing I want to get both streets.
Right now I can ...
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1answer
100 views
Display overlapping polyline segments as multiple lines with offsets?
Selecting which polyline is displayed on top in case of segment overlaps seems to be quite a FAQ, however, I would like to find a way to display overlapping polyline segments side-by-side, i.e. as ...
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0answers
31 views
Separating overlapping polygons into a new shapefile
I am currently working on building a model so that my process is easier to follow so the solution would preferably be something I can add to modelbuilder.
I have a shapefile of polygons that represent ...
1
vote
1answer
41 views
Highlighting using distinct color where features overlap in QGIS?
I have two species on my map and right now they are different colors. However, what I want to happen is when they overlap in the same spot, the color is a distinct difference from the other two colors....
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1answer
37 views
Can QGIS print nested or overlapping polygons in order?
I use MapInfo-Discover and have calculated Catchment areas for analysis. MI won’t print overlapping polygons in one table in any set order; dividing the data into 100’s of tables isn’t a solution.
...
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2answers
41 views
Polygon Shapefile Overlap with a Raster
I have some raster files of an agricultural region. There are more than 50 small fields in the agricultural region. For each field, a shapefile has been provided. As shown in the image below, each ...
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0answers
51 views
Modify polygons so that they don't overlap and area stays the same
I have a set of polygons and they can overlap with each other, like this:
I want to modify them in such a way that they don't overlap and the resulting surface area stays the same. Something like ...
1
vote
1answer
85 views
How to calculate the overlap of two polygons in PostGIS
I am trying to calculate the percentage overlap of two vector polygon layers and saving the result as a separate column. The code below is working:
CREATE TABLE parcels_all_shapefile_new AS
SELECT ...
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2answers
95 views
Summing attribute values of overlapping polyline portions in ArcGIS Desktop?
I have polylines of 80+ bus routes operating in a city. The polylines have attribute values for the number of passengers, number of trips, etc. Many of the polylines overlap at certain areas of the ...
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0answers
54 views
problem with resizing Polygons with gBuffer in R
I'm working on something and having a little problem.
library(tmaptools)
library(rgeos)
library(raster)
library(leaflet)
library(dplyr)
USA <- getData(country="USA",level=1)
Texas <- USA[USA@...
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0answers
31 views
How to combine multiple overlapping rasters and outputs a new raster that carries the maximum value [duplicate]
I have 7 classification rasters. Each raster has probability values from 1 to 10. All of the rasters overlap each other at some areas. I would want to create a new raster that carries the maximum ...
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3answers
112 views
ArcGIS merge polygons (catchments)
I have a shape with 113 polygons. (partial catchment in hydrometric station sections). Is there any method, in ArcGIS, to overlap and merge polygons from upstream to downstream, in order to results a ...
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0answers
45 views
How to count buffer overlaps in the same layer
(1) I have a layer of points that identify services (Library, Hospital, police, etc.)
(2) I have a buffer layer of the area of influence of each service.
(3) There are several places where areas of ...
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0answers
32 views
Preventing Symbols Overlapping in FeatureLayer using ArcGIS Engine?
I'm adding some symbols to the map according to the village location, but I faced a problem because some points appeared on the same coordinates.
Is there any way to prevent symbols overlapping?
...
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1answer
66 views
Finding overlapping annotations using ArcGIS Desktop?
I use about 10 annotations to produce my map. Every single one has been created separately using Tiled Labels to Annotation. I am using ArcGIS Desktop 10.3
Is there a way to find the annotations that ...
4
votes
1answer
155 views
which v.clean option is required to eliminate overlapping segments of lines?
I want to produce a polygon layer out of lines like in this image with the command poligonize:
Source: QGIS create boundaries from background image
The problem is that some of the lines are coming ...
1
vote
1answer
78 views
ArcMap Way to merge two shapefiles and take the average of their polygons that overlap?
So I have two shapefiles that show storm surge height values for two different areas. Nevertheless, they overlap for a good portion of their areas. When I merge them together, it seems that the ...
0
votes
1answer
47 views
Estimating area of overlap between polygons in same layer
I have a series of buffers representing service areas of bike share stations that extend 400 from the station (network distance). The polygons were generated using Network Analyst. Evidently, buffers ...
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0answers
34 views
Topology checks and error marker
I have a problem in QGIS. I want to find overlapping polygons but not only which polygon overlap with another but the exact node(vertex) that intersect or overlap. The error marker doesn't show you ...
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1answer
42 views
Combining two layers and removing their overlap using ArcGIS Desktop?
I am using ArcGIS Desktop 10.0.
I have two polygon layers showing storm surge and I want them both to be combined to look like a smooth transition into each other. However, they have an overlap and ...
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votes
0answers
24 views
Weather Heat Map/ Hot Spot [duplicate]
I have a shapefile of tornado warning polygons. I would like to find and map the areas that have been in the most amount of warnings in that period of time. For example, I would be able to see that x ...
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0answers
27 views
ArcGIS: Get coverage of Polygon A in Polygon B
We have dissemination area (DA) units for a city [Polygon B], and shapefiles of all parks in the city [Polygon A].Polygon A overlaps Polygon B in some areas.
We initially wanted to calculate the ...
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1answer
40 views
Can percent overlap of polygon layers be calculated in geographic coordinate system? [duplicate]
I have two global polygon shapefiles in WGS84, and I would like to generate spatial stats on the % area of one shapefile that is overlapping the other. I understand that geometric calculations such as ...
2
votes
1answer
72 views
Changing certain attributes and creating a new field for combined data
I have this combined dataset with building heights divided up over several columns ''Height'' ''Building_h'' and ''Building_L. My end goal is to combine them all in one new column. There are however, ...
3
votes
1answer
202 views
Merging overlapping polygons with original polygons in QGIS
I have a large vector shapefile dataset containing polygons, many of which overlap.
I want to assign each overlapping section to one of the original overlapping polygons. E.g. if polygon A overlaps ...
