Questions tagged [buffer]
A region enclosing a point, line, or polygon at a specified distance.
1,533 questions
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"Vector too long" after reprojecting shapefile in QGIS
I can't seem to understand what's going on. I have a QGIS project in UTM, but when first imported the layers, they were in WSG84.
So one of the shapefiles, a 12nm territorial waters one, I wanted to ...
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Buffer polygon dataset on one side but in variable directions
I have a polygon layer composed of ~140 polygons of varying sizes and shapes (the greenish in the image) along the coast, plus a polygon of the state itself (the bluish in the image). Basically, I ...
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Buffering line vectors that only buffer along the length of the line in QGIS
I am trying to buffer some line vectors, however I ideally only want the buffers coming from the lengths of the lines rather than the buffers surrounding the whole line and coming off of the ends of ...
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Creating/adding NLCD raster attribute tables in QGIS
I recently uploaded a raster from the NLCD (US National Land Cover Database) to QGIS. I'm trying to create buffer zones around different waterways to analyze riparian land cover. However the NLCD ...
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Making one sided buffer for not closed polygon rings [closed]
I have a polygon layer representing the outer areas of cities. The polygons do not create a closed "ring" most of the time and consist of multiple fragments. See my example drawing:
How ...
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Buffer analysis on raster layer
I have a layer with points, which I have created a buffer layer from. I also have a raster layer, and from this raster layer I want to extract the parts where the raster intersects the buffer layer. ...
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Visualizing provided uncertainty radius data in QGIS
In QGIS, I have data consisting of 4 fields (columns): "Date", "Long", "Lat", "Uncertainty Radius (UR)". While the latlong plots look good, I need to provide a ...
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Creating buffers for big MultiPolygon without out-of-memory crash in QGIS
I have a vector layer with a multipolygon with over a million single polygons (houses). I need to create a 1km and a 2km buffer around it. When I use Vector geometry - Multi-ring buffer my machine ...
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ArcGIS Pro: Finding the pixels of a raster that are overlapped by a feature layer
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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Setting buffer around points in meters as opposed to degrees in QGIS
I have GPS data that I have imported into QGIS that is using the WSG 84. When I try to get buffers around my points, I can't set them in meters, only degrees.
Everything else that I am using is in ...
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Creating buffer for flight path using QGIS [duplicate]
I am trying to create a buffer around my helicopter flight path. However, I want to only have the buffer on the right side of the helicopter flight path depending on points. The points do have time ...
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Clipping lines outside buffer using QGIS
I am using QGIS 3.22.16.
I try to find a way to select all the lines that are outside of the line buffer. I used the select by location option "within" than reverse the selection. ...
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Subtracting one Buffered Layer from Another
I want to create a buffer for a series of lines where you can set a minimum and maximum distance of the buffer created for each line, but no tool seems to allow you to do this simply.
So another ...
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Getting store level WKTs of big area/airport/multistorey building with Overpass turbo [closed]
I'm trying to extract store-level WKTs of multistorey buildings, airports, or significant areas.
e.g. JFK Airport there are like 100 of stores, I want to get the boundary of each store. I already got ...
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Knowing what points (id code of points) are inside buffer in QGIS
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 ...
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