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Geographic Information Systems

Questions tagged [overlapping-features]

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

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Using QGIS, I have imported a dataset consisting of 288 raster layers. I am wanting to create a polygon layer for the data footprint (not extent) of the rasters that shows how the raster are ...
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I have a polygon layer and a line layer, and I need the polygon layer to permanently retain an attribute from the line layer. Polygons should be matched with the line feature that has the most ...
Mew's user avatar
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A few weeks ago, I posted an initial message: Percentage of area overlaped / covered by features of another layer But after further thought, I'm creating a new one to provide additional inputs/...
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I'm working with PostGIS. I have two vector layers : A first polygonal layer resulting from vectorization work using photointerpretation of the aerial imagery (in blue in the attached screenshot ...
user35117's user avatar
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I have a grid of polygons and a larger polygon (which is really just a border). The overlapping polygon intersects the smaller polygon grid and divides some cells (see picture). I am trying to add an ...
Tony C's user avatar
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I have a polygon layer stored in a Geopackage that consists of a series of polygons drawn on top of each other. I would like to flatten them so that the top polygons are left, but overlapping data ...
Vantooville's user avatar
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Hi all:) I have a spatial operations/intersections question. I have a couply (actually many) polygon layers. Some of them intersect, others dont (like in the image). I basically want to count the &...
Lenn's user avatar
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I have a polygon layer of several cartographic frames which its attribute table is empty (even ID field is empty!) so I need to fetch attributes from a superposing point layer, each feature of which ...
SirB1's user avatar
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In QGIS, I have a polygon layer in which every polygon intersects at least another one. How do I select the ones that intersect more than two of them? Using overlay_intersects(@layer) selects all of ...
Jean-Junior Desaulniers-Monten's user avatar
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I would like to get this kind of final result extract from counting points in polygons. Generally I do export from with CSV file This is what I have 4 rows are doing one plot. So I was doing 2 grid ...
Matt's user avatar
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I just wonder if points in one coordinate system overlap with other layers in another coordinate system do for example the coordinate system of the points layer has to be changed. My previous topic ...
mapper85's user avatar
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I added a polygon layer and points layer same coordinate system 3879 but they are projected in different locations. I tried changing coordinate systems didn't help. Polygon layer is originally from ...
mapper85's user avatar
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I'm designing a berry farm, and have all of the polytunnels laid out on an 8.5x2.5 m grid. I'm interested in displaying the 8.5 m rows (black lines in the photos) only where they intersect the block ...
Beets's user avatar
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I'm working with QGIS and I have a set of squares (polylines) constructed around their center (points). A lot of the squares are intersecting or touching with each other and I want to leave only ...
Lara's user avatar
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I am using ArcGIS Pro 3.3. I have been trying to figure out how to remove some county boundary lines so that I can use a dash effect on the boundaries without them overlapping and interrupting the ...
Alec S's user avatar
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I have to visually represent a number of unique routes (line features) to four destinations, which overlap in many shared sections. In the first screenshot below I actually have 20 unique lines, and ...
MVR's user avatar
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For my GIS final, I am creating an app similar to NukeMap by Alex Wellerstein. My main goal is to provide the user with a casualty estimate for a set nuclear bomb yield in any location. To do this, I ...
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I have figured out how to save only the features of a vector layer that intersect a rectangle (I'm doing something similar to the example below): TransformContext = QgsProject.instance()....
Jonathan's user avatar
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1 answer
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I have an area (polygon layer AoI in red) for which I want to evaluate the total overlap of polygons within a different layer, with the catch that within that layer, polygons are overlapping each ...
Honeybear's user avatar
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I have a layer X with road geometries and want to calculate the overlap area with region Y (the overlap of X and Y). However, the geometries within layer X are already overlapping. Since the tool ...
Honeybear's user avatar
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How do I transfer the field values to the marked features like those shown in the image automatically? The lines are segmented once they pass through the light coloured underlying layer. The faulted ...
Gokul Anand's user avatar
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I am working with two datasets in QGIS: Dataset 1: Underground water contour lines (vector data, either shapefile or DBF format). Dataset 2: Water wet points on the surface, represented as a raster ...
user47197's user avatar
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I have a project with two polygon layers : "Habitat" and "Flore". This project is prepared to be used in QField by botanists. This is what I want for the overlapping of these ...
f.hin's user avatar
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4 votes
2 answers
191 views

I'm working on a map with contour (height) lines, and there are many places where the lines overlap. I tried manually looking for every instance of overlap and fixing it. Is there a quick(er) way to ...
DPrado's user avatar
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I am analyzing forest degradation levels using Hansen's forest loss data, aiming to classify degradation based on the frequency of disturbances over time. Specifically, I want to determine how many ...
Bounchanh Sakounnavong's user avatar
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3 votes
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I have a "parcel boundary" layer that contains a single polygon representing a parcel. I also have an "access lines" layer that contains many line features representing roads, all ...
Brightside's user avatar
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1 vote
1 answer
97 views

If I made a buffer around points and I am uniting those buffers that are in contact with each other. Now I want to make an attribute column in those united buffers that tells me what points are inside ...
Gabriel Moya's user avatar
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2 votes
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I have overlapping geometries (parcels) which have the same vector information but are "duplicated" due to some attributes being different.. See in the image below 11 overlapping parcels ...
Romain Guillot's user avatar
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I want to copy the below image and so draw polygons of different colors, where each color is a known interval. But I was wondering which is the correct way to achieve that, since it already happened ...
Cecilia M's user avatar
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3 votes
1 answer
190 views

I am developing a plugin for QGIS and one of the tools is to collect the elevation of points from a Digital Elevation Model (DEM). Initially, I am collecting this information in the following way: ...
Aloísio Ângelo's user avatar
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3 votes
1 answer
236 views

I'm struggling with creating a visually clean dashed line style in QGIS for overlapping boundaries of two layers. Here's my setup: Context: I have two polygon layers: Protected Area (green): Dashed ...
maxhermannplatz's user avatar
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I want to click on all the polygons and download their corresponding datasets from this webpage https://opengeodata.lgl-bw.de/#/(sidenav:product/1) , ( map needs to be zoomed in to less than 1000m ...
vishal dev's user avatar
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I am trying to create a visualization of several routes all following the same path and have offset the lines an increasing distance from each other allowing them to sit side by side without ...
Taylor Vandiver's user avatar
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4 votes
3 answers
198 views

I need to sum up the value of energy usage by energy carrier (as a string) attached to polygons within a certain building block, take the highest sum, and write the corresponding energy carrier on the ...
BAE_23's user avatar
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3 votes
2 answers
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I have a data set like the following in .csv: sample latitude longitude A 37.18 -115.85 B 37.18 -115.85 C 37.18 -115.85 D 39.44 -117.66 E 39.36 -117.72 F 39.6 -117.94 G 38.12 -111.5 H 37.95 -114.36 ...
goshawk's user avatar
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2 answers
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I have an aerial fibre plan and splitters on certain poles (these layers overlap each other). There are over 3000 poles and only 1699 of those poles have a splitter on them. Is there any way I can ...
Dylan Kew's user avatar
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2 votes
1 answer
76 views

In QGIS I have multiple buildings with different classes (municipal, private, industry) within a building block. I need to get the majority of the class within a building block and write this data on ...
BAE_23's user avatar
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2 votes
0 answers
54 views

I have traffic speed data for a city covering 24 hours, represented as 24-line shapefiles. I want to calculate the average speed for the day, but many roads have partial overlaps. In the provided ...
user253607's user avatar
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4 votes
2 answers
286 views

In QGIS 3.40 I used the 'Contours' tool from a Raster; this generates polylines. I convert these polylines into polygons using the 'Lines to Polygons' tool. The generated polygons overlap, and I want ...
A. Jean's user avatar
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1 vote
1 answer
115 views

I have the following layers: One Vector Polygon Layer with Protected Areas (several variables, e.g. "NAME" of the Protected Area) One Vector Point Layer with coordinates, pesticide names ...
LoMap's user avatar
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2 votes
0 answers
46 views

The image is about a determinate area of study, and the line routes of the metro, and I want to know if there is a practical method to know the average distance of the line of each part of the polygon,...
Antonio Kerguelen's user avatar
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2 votes
0 answers
76 views

I have one shapefile with thousands of polygons in it. Some of them are overlapping. In some places, there are even up to four overlaps. The polygons represent different types of land use (i.e. ...
Pfalzwasser's user avatar
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2 votes
2 answers
250 views

In QGIS, I have a polygon layer representing substations. Rooting from these substations, there are a lot of line features leaving the substations representing power lines. On top of the power line ...
MrSalamikuchen's user avatar
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0 answers
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I would like to use QGIS to calculate the amount of overlap between two vector polygon shapefiles, both (1) the percentage of overlap and (2) the absolute area in km^2 (or another unit). When I run ...
MapDeath's user avatar
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2 votes
3 answers
274 views

I'm using QGIS 3.14.11, and I want to compute the area covered by a layer on a grid, aiming to erase the grid cells that are covered over 90%. I've tried before to use cut or intersect, but it didn't ...
Axelerateur's user avatar
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1 vote
1 answer
119 views

I'm looking for a GP tool that would fix the geometry of overlapping polygons in a feature class. Basically it would check a ranking field in the attributes of each polygon and have the higher ranked ...
3ple Nipple's user avatar
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2 votes
1 answer
112 views

I would like to have a countries layer where each country that is contained by a timezone has this timezone, otherwise (like the US) is split up into multiple polygons. For the output, I would like to ...
Lenn's user avatar
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2 votes
0 answers
79 views

I'm relatively new to QGIS and I'm using it to run viewshed analysis to assess impact of newly constructed transmission lines on private properties. I generate two viewsheds, one at 500m from the ...
Bidgee's user avatar
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2 votes
1 answer
128 views

In QGIS I don't know how to crop an area of geologie within the boundaries of my studied area, which is UAT_Iasi. Can you please give me some suggestions?
Alexandra's user avatar
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2 votes
1 answer
175 views

If two Polygons have partly overlapping sides, a union of these Polygons is a Polygon with collinear sides/vertices. Is there a method to merge those sides by deleting the middle vertex? I thought ...
Michal's user avatar
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