Questions tagged [buffer]
A region enclosing a point, line, or polygon at a specified distance.
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QGIS 3.34.7 Single sided buffer changes - creating unexpected result
On QGIS 3.34.7 LTR, if you try to "Single sided buffer" a self closing line/full encircle (yellow line), with a value let's say 2 meters it will create a polygon inside and the edge where ...
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Shapely buffer(0) returns an empty polygon(coordinates:[]), and discard the main polygon
There are self-intersect polygons in my geojson files. So I used the shapely lib to fix it. The code is like this:
clean = geom.buffer(0)
Most of the polygons have been processed properly, but there ...
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Buffer without overlay using QGIS
I am using QGIS to do some analysis on the reach of bus stops in a small town in Sweden with a set buffer of 400m, however I want the results to not have any overlay.
This is the original map
When ...
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Buffer without overlaps in Python
I have a set of points with respective lat/long coordinates and each point has a given value associated with it (basically a field measurement). I would like to draw buffers of a given radius around ...
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Creating multi-ring buffers around points in a single layer and for each point selecting neighbors within a specified radius in R
I have a CSV file of data on a set of 3000 points (locations) with respective coordinates and a number of attributes. I want to perform a regression analysis that takes cognizance of any spatial ...
CommunityBot
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Which temporary projection is most suitable for calculating a buffer around a route
To create a buffer around route (for purpose of querying around a route), I figured I need to:
convert route points from geographic to planar coordinates
calculate a buffer
convert result back to ...
CommunityBot
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Difference of circle buffer area to calculated area in QGIS
When I create a circular buffer around a point feature in QGIS 3.36.3-Maidenhead in EPSG:25832 of a 10 km radius with 1000 segments I get 313961275.193 m² as a result. I calculate the area by typing $...
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Buffering geometry with points in WGS84 using shapely
I have a polygon in Python shapely that I would like to buffer with a 100-foot buffer.
If the polygon is stored as a series of WGS84 lon/lat points how would I go about calculating the distance of the ...
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How to create one buffer around all the points using ogr2ogr?
I know how to make a buffer around each point,
$ ogr2ogr oom.csv a1.houses.csv -lco GEOMETRY=AS_WKT -dialect SQLITE -sql \
"SELECT ST_Buffer(GEOMETRY,.01,1) AS WKT FROM 'a1.houses'"
$ cat ...
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How to use ogr2ogr -clipdstsql?
This works (A),
$ ogrinfo -dialect SQLITE -sql
"SELECT ST_Buffer(ST_GeomFromText('POLYGON ((120.81313 24.18337 ...
Layer name: SELECT
OGRFeature(SELECT):0
POLYGON ((120.702569638856 24....
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Incorrect distances when measuring on QGIS, leading to buffers and density maps being much larger
I have created a boat traffic map on QGIS 3.36.2. Here, I have a vector layer containing different points connected to show the boat routes in the Andaman and Nicobar Islands in India. To ensure that ...
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Making buffer with ST_Buffer in PostGIS
I am trying to make a buffer(0) as a fix-geometry process in PostGIS 2.2.2.
It is like this:
SELECT ST_Buffer(ST_GeomFromText('POINT(100 90)'),0,4);
I am using sources from this man page. It creates ...
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Create 3D Cylinder in ArcGIS Pro
Is it possible to create a hollow 3D line feature in ArcGIS Pro? Something like a CAD "SOLIDEDIT" operation (I know next to nothing about CAD). I have a 3D Model of a large-diameter water ...
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Clip (Modify Features) aggregates nearby geometry using ArcGIS Pro
I have a large polygon that contains several other (smaller) polygons. Some of these smaller polygons also intersect with each other but they all at least 'touch' the larger polygon.
I want to clip ...
CommunityBot
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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 ...
CommunityBot
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