Questions tagged [buffer]
A region enclosing a point, line, or polygon at a specified distance.
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Buffer: shape_Area=0
I used the GPX to feature tool to add data points to my map. I draw buffers with a different radius around each point >10 m (some of them overlap). However, the column shape_Area is 0 for all the ...
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Trouble with Buffers using EPSG:5070 QGIS
I've been trying to create a buffer layer around point sources in QGIS. I'm using the EPSG:5070 co-ordinate system, everything I input is in this system, including the base project. I've tried ...
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Creating buffers to closest distances with two categories in QGIS
I would like to develop an expression that does the following nearest-neighbour analysis:
From a layer of points 'point_layer', I would like to calculate for each point the distance to the nearest ...
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Create a buffer on a single LAS file using lidR
I want to create a buffer for a single LAS file in order to test different algorithims for DTM creation on a small scale before scaling up to all my files using LAScatalog.
I know LAScatalog creates a ...
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RuntimeError: Illegal values for buffer size?
Does anyone know what this "RuntimeError: Illegal values for buffer size" error is? I am running gdal2tiles.py on a geoTIFF. Below is the message in my terminal. I don't know if the buffer ...
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Creating buffer for MultiPolygon that covers all its surroundings in QGIS
When I try to use the Buffer tool in QGIS, it only allows me to create buffers in degrees ("grados" in the screenshot below) and it does not give me the option of changing the units (to ...
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Buffers around linestrings have weird shapes (sf in R)
Update 10.11.23
Question (1) has been resolved, but answering question (2) is still in progress.
Original Post
I am trying to create buffers around (multi)linestrings representing international land ...
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Aggregation of buffers from polygons
I need to make a buffer from the polygon layer with a specific value in the A field, such as from the X value, for example from the value X.
The buffer must be of radius 50m and I need to get an ...
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Identifying near continuous line features in a broken network
I have a line dataset which contains thousands of records, the network isn't continuous and it is broken in many locations. The aim is to find potential routes which are continuous in long sections, ...
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How to calculate the average elevation within a certain radius around a grid cell and apply the average to the grid cell in QGIS?
I have two layers in QGIS: a raster layer containing elevation, and a grid cell layer (polygon) containing 1km by 1km squares.
I am trying to create a new layer where the elevation of each 1km by 1km ...
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How to prevent duplicates from being generated in Spatial Join in PostGIS
I'm trying to create a spatial view which meets the following criteria:
Sentinel hotspots registered within 2km of powerline (feeder)
AND
QRFS point located within 4km radius of sentinel hotspots
AND
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Additional properties or alternative library to achieve buffer functionality
In a react native app that I am working on, I have a question about as to whether there are additional properties for turfs buffer to make the buffer around a line not form a closed polygon on overlap ...
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Create one-sided-ellipsoid from 'geometry by expression'
I am looking for a way in which, I can create a buffer around a point.
The buffer is meant to be a semi-ellipsoid.
In theory it should be a mixture of 'single_sided_buffer' and 'make_ellipse' ...
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Buffer coming out to be a circle
I have been trying to make a buffer for the roads but the buffer is coming out to be a huge circle. Both the project coordinates and Shapefile coordinates are the same. Any pointers on how to solve ...
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QGIS raster buffer by cell value
Is it possible to buffer a raster in QGIS based on cell value? I want to be able to model the theoretical falling zones from tree height data (1x1 resolution LiDAR data) from tree canopy cover extent ...
