Skip to main content

Questions tagged [overlapping-features]

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

Filter by
Sorted by
Tagged with
2 votes
1 answer
34 views

Transfering attribute from line layer to polygon layer by their overlay in QGIS

I have a polygon layer that represents sub-catchments and a line layer that represents a stream network. There is exactly one feature in the line layer for each polygon. I have used v.rast.stats to ...
Fabi's user avatar
  • 75
0 votes
0 answers
30 views

Bulk-removing self-overlapping polygons

Using QGIS 3.18, I ran the topology checker on a polygon layer (gpkg format). It found several thousands self-intersections. I can see the errors, but I cannot seem to be able to delete the polygons ? ...
rdelattr's user avatar
2 votes
1 answer
56 views

Sort overlay intersections by area of overlap

I am able to get list of attributes of overlapping geometries in QGIS . I want to sort by descending area of overlaps in the geometric . Original Expression array_to_string(overlay_intersects( layer:='...
B Alexander's user avatar
0 votes
1 answer
21 views

GEE feature alignment in two featureCollections (same features but with different ID properties) [closed]

I have two sapefiles consisting of features + geometries that represent the same bounding areas on earth. Lets call them shp_D1 and shp_D2. Like in many shapefiles, every feature (polygon) in these ...
Sina NAKHOSTIN's user avatar
3 votes
2 answers
229 views

QGIS: Removing overlapping features in one layer

I have a dataset in QGIS with polygon features that partially overlap completely. I would like to delete the overlapping polygon features so that each area is only covered by one feature. The decision ...
Fabi's user avatar
  • 75
2 votes
1 answer
78 views

Mark overlapping areas in QGIS

I have one layer in QGIS with many polygons (drawn in different colors) that partially overlap. How can I mark the areas that overlap separately (e.g. dashed)? Here is an example: The colors of the ...
leberkas-lover55's user avatar
2 votes
1 answer
43 views

Fix "folded" polylines using FME

I have a dataset with polylines. For some reason the polylines are drawn back and forth multiple times. You can regard the lines as folded. The number of lines the runs back and forth varies from line ...
Meatball's user avatar
  • 121
3 votes
3 answers
321 views

Getting only the intersection part of self-intersecting polygons in QGIS

I am trying to find places where different features in one layer intersect. An example picture of the layer: The result I would want from it: However, at best, using Intersection, Clip or SAGA Self-...
guul66's user avatar
  • 31
0 votes
0 answers
15 views

Topology checker won't highlight in red the overlaps

I´m using QGIS and trying to find overlaps in a shapefile. When I use the Topology Checker I get 24 results for overlaps, but they are not highlighted in red as they used to the last times I did the ...
Gonçalo Coimbra's user avatar
0 votes
1 answer
52 views

Display symbols only when labels are displayed

On the map I have symbols (points) and labels for all municipalities with more than 10.000 inhabitants. Due to the fact that some parts of the desired area don't have municipalities with more than 10....
Filip's user avatar
  • 9
0 votes
0 answers
51 views

Getting overlap of polygon features on point layer using ArcGIS Pro

I have two layers. The first is a point layer with centroid coordinates and the second is overlapping drive time isochrones created by Network Analyst - Service Area. The two images are shown at the ...
Daniel Sim's user avatar
7 votes
2 answers
177 views

QGIS functions: aggregate and array_foreach not working for vertices

I have two layers as the whole project in EPSG:4326: polygon layer of countries linestring layer of routes I want to concatenate the country names (those are stored in "name" attribute) ...
Kluuboo's user avatar
  • 71
1 vote
1 answer
51 views

Overlap Analysis (Line Data Overlapping Polygons)?

I am attempting to calculate the length (or percentage) of a line layer that overlaps a series of polygons. As an example; lets say I was trying to calculate the distance I drove across a series of ...
Pclark94's user avatar
0 votes
0 answers
27 views

How to change polygons order of appearance in QGIS and keep it when exporting in GeoJSON [duplicate]

I am trying to change the overlapping order of certain polygons in my layer in QGIS. I applied the function found in Properties>Symbology>Layer rendering and set the order of appearance by two ...
Elena Politi's user avatar
2 votes
1 answer
77 views

How to properly perform zonal statistics with overlapping geometries

I am using python 3.9. I have a shapefile with overlapping polygons and a raster dataset. I would like to summarize some statistics on my polygons. However, as I mentioned, my polygons are overlapping....
OgeiD's user avatar
  • 566
0 votes
0 answers
10 views

Group Template that clips/deletes enclosed polylines to avoid overlaps

I have a group template that creates a polygon with one feature template and a boundary made of of 2 point line features with another feature template. For the polygon, the template had an option to ...
theyhem's user avatar
5 votes
1 answer
192 views

Display only one label for overlapping points in QGIS

I have a point layer with some overlapping points but I want to display only one label per symbol. For line and polygon symbology there is the "Merged features" option to agglomerate ...
dmjf08's user avatar
  • 1,273
3 votes
1 answer
101 views

Generate dynamic sum of attribute values from one layer based on overlap with polygons on another layer

I'm using QGIS 3.28 on Windows. I'm trying to make a workflow for determining whether a proposed lot satisfies minimum lot sizing based on soil type composition. I have: a single-polygon overall ...
dsjeffery's user avatar
1 vote
1 answer
55 views

Select by location fails for some lines in QGIS

I have many line objects in a layer called "line" (pink). Further, I have line objects in a layer called "Connection" (blue). The lines in "Connection" are created by the ...
Dennis's user avatar
  • 43
2 votes
1 answer
129 views

Calculating percentage of landuse type within buffer using Python [closed]

I have two polygon shapefiles: buffers and landuse types. I want to calculate the percentage of each landuse type within the respective buffer. The problem is that the landuse type polygons are bigger ...
Lina's user avatar
  • 233
1 vote
0 answers
104 views

Finding the name and area of layer under buffers

I am new to QGIS and am using version 3.34.2 (Prizren). I am using two files to accomplish a couple of tasks (explained below). The first file shows the outline of groups of villages (gram panchayat [...
Ramandeep's user avatar
1 vote
0 answers
33 views

Point-to-line-error when joining attributes by location in QGIS

In QGIS I have several lines with an azimuth attribute. I want to write this attribute to a point layer with "Join attributes by location". The points lay right on the lines (I used the &...
Max's user avatar
  • 11
0 votes
0 answers
18 views

r.mapcalc in GRASS GIS fails to mask rasters

I have a raster binary map (0-1) where 0 represents unsuitable areas (violet) and 1 represents suitable areas (yellow). I want to crop another raster (red) based on this suitability (for several ...
LT17's user avatar
  • 303
1 vote
1 answer
47 views

Summing up attributes overlapping polygons in QGIS

I have large single layers with many features overlapping, like this: Where the features overlap I want the attributes added together. I've managed to count the number of overlap polygons by doing ...
Alba's user avatar
  • 11
2 votes
0 answers
57 views

Selecting features based on minimum overlap with another layer in QGIS [closed]

I have a "sites" vector layer with 300 polygon features and a "heathland" vector polygon layer, showing the locations of heathland areas. I am looking for a way to select all ...
nn90's user avatar
  • 57
1 vote
0 answers
60 views

Separating intersecting lines in QGIS

I have a project in QGIS where multiple cables follow different paths using specific points as vertices, and sometimes the cables end up crossing over each other. I would like to perform a ...
João Monego's user avatar
2 votes
2 answers
64 views

Splitting polygon that is result of difference function between two polygons in QGIS

So I have this polygon (picture 1) that will be used to make its bounding geometry as shown in the second picture. After making this bounding geometry, I wanted to make the difference polygon from ...
Yosua's user avatar
  • 21
0 votes
1 answer
61 views

Select intersecting polygon in QGIS

We're trying to select an entire polygon if any part of it intersects a buffer in QGIS. How can I do this? I can get the intersecting part but can't figure out how to get the entire polygon. To be ...
Evan's user avatar
  • 1
2 votes
2 answers
220 views

Removing polygons from GeoDataFrame which do not intersect with any polygons of other GeoDataFrame using Python

I am looking for an efficient way to remove any polygons from a GeoDataFrame which do not intersect with any polygons of another GeoDataFrame. I tried it the following way which seems really ...
wup017's user avatar
  • 23
1 vote
1 answer
85 views

Creating raster layer with pixel values which are sum of overlapping polygons in single vector layer

I am using QGIS. I have a vector layer with about 600,000 overlapping polygons, each with an assigned risk value as attribute. I want to create a raster layer which shows the total risk value at each ...
I'm not a robot's user avatar
1 vote
1 answer
82 views

QGIS Rasterize tree polygons - giving priority to higher trees

I used points of trees and created buffers around them based on their canopy widths. I rasterized these polygons and burned tree height as a value (later to be used for shadow modeling). Important is ...
Mat_114's user avatar
  • 23
6 votes
5 answers
1k views

Finding overlapping polygons within the same layer in QGIS

I have a polygon layer and want to check if there are some polygons overlapping within the same layer. How can I do this? In ArcGIS, I could run the Intersect tool only by adding the layer I want to ...
Motti's user avatar
  • 456
0 votes
0 answers
46 views

How to cede overlapping area in polygons in QGIS to one of the polygons based on a condition

I have a shapefile with 2745 individual sites/polygons in the Philippines, each site represents a tree planting project, with relevant information (30 attributes to be precise), including the year the ...
badiskhiari's user avatar
2 votes
1 answer
125 views

Intersection of two GeoDataFrames using Python [closed]

I have two GeoDataFrames: The first one is a large grid (many small bounding boxes), each row is a bounding box saved as a polygon. The second one contains just a few polygons (one polygon per row). ...
Daniel AG's user avatar
0 votes
1 answer
38 views

How to avoid overlap when working with the habitats baseline map layer on QGIS?

I have recently been working with Natural England's Net Gain Habitat mapping QGIS software. I have plotted baseline habitats, filling out the proposed habitat too. In my previous experience of QGIS I ...
Taylor's user avatar
  • 1
1 vote
1 answer
57 views

Getting selected attributes from line layer to polygon layer in QGIS

I am trying to get specific attributes from a line layer to a polygon layer. The line layer contains a number of pipes that run through a polygon (parcel). They both have the parcel number in common: ...
ibdmn's user avatar
  • 191
3 votes
1 answer
78 views

Splitting line manually at intersection in QGIS

I would like to split the CA line at the exact point where it intersects the NC line. I try to use the Split Features Tool (scissors) in QGIS but it doesn't cut the line at the exact point of the ...
JoanB's user avatar
  • 143
2 votes
1 answer
58 views

Merging polylines to next one in QGIS

I'm working with QGIS and I'm not super familiar with that. I created a Shapefile with several polylines. In some cases, my polylines do not match each other directly. For further proceedings, I would ...
Sulz's user avatar
  • 144
2 votes
1 answer
47 views

Merging overlapping parts based on priority in QGIS

Let's say I have two polygons for Protected Areas in my country, one for a National Park and one for a National Forest and they have an overlapping part. I want a tool that removes this overlap from ...
Juan Orozco's user avatar
3 votes
3 answers
111 views

Extracting by position working differently in QGIS modeler

I am trying to create a tool in the QGIS modeler. The idea is to select lines within an area by hand (e.g. select features by polygon) and the first step of the tool would be to select/extract all ...
ibdmn's user avatar
  • 191
1 vote
1 answer
191 views

Count overlapping polygons but with "assigned scores" in the shapefile layer

Basically, I have my IUCN species distribution layers. I initially created a heat map with overlapping polygons (Count overlapping polygons tool) but that just gives me the species richness. I thought ...
NLS's user avatar
  • 21
0 votes
0 answers
65 views

Count grid cells overlapping with target polygon

I am working with ArcGIS Pro trying to obtain the number of grid cells of a polygon grid (purple) overlapping with different target polygons (green), e.g. 9 grid cells for the uppermost polygon. The '...
Kristina's user avatar
  • 1,073
2 votes
0 answers
59 views

Controlling the Display Order of Map Tips for Overlapping Features

I have a point layer with multiple overlapping features. I have managed to control the rendering order of these features on the map using the "Control feature rendering order" option in the ...
MartinMap's user avatar
  • 8,272
1 vote
1 answer
339 views

Merge overlapping portions from two polygons to one or the other using FME

I have a shapefile with many polygons, of which some portions overlap. When I use the AreaGapAndOverlapCleaner, it disconnects the overlapping portion, but makes it an independent feature with data of ...
SaFaL's user avatar
  • 19
0 votes
1 answer
260 views

Getting all layers hovered over in a layer stack in Leaflet?

Using Leaflet with a map that has multiple layers on it, how can i get a list of all the layers hovered over, a la ArcGIS Online? For example, suppose i have two circles A and B on a map in standard ...
Alex's user avatar
  • 11
4 votes
3 answers
238 views

Creating ring using overlapping and fully contained polygon in QGIS

How do I use the middle polygon to cut a ring in the bigger polygon without moving the middle polygon to another layer in QGIS 3.30? I think there is a way to make this edit in-place without having ...
Sail Camper's user avatar
1 vote
1 answer
99 views

Finding length and percent of line across polygon in QGIS

I have a layer with several line features and a polygon layer which has land ownership information (so thousands of parcels). I want to append several columns to the line layer attribute table ("...
curiousarchaeologist's user avatar
4 votes
2 answers
166 views

Adding up line length for lines that pass through polygon in QGIS

I have three lines as per the below picture. The layer is called 'line'. A is 60m, B is 30m and C is 90m. I have a polygon layer consisting of 1 square. The layer is called 'polygon'. I want to make a ...
spreaderman's user avatar
0 votes
0 answers
26 views

Merge overlapping linestrings and retain attribute table values on overlapping segments

I have a linestring layer. The lines are overlapping at some segments. The lines are perfectly overlapping, they don't swerve to the left/right. I want to get the segments (500 m long, for example) ...
barney stinson 2's user avatar
3 votes
1 answer
340 views

Self union MultiPolygon layer using GeoPandas

I need to perform a union operation inside a single layer. In QGIS there is an option not to select the second layer, but I can't figure out how to do it in GeoPandas? Example: Plots are red, zones ...
Sergey47's user avatar

1
2 3 4 5
18