Questions tagged [buffer]
A region enclosing a point, line, or polygon at a specified distance.
1,498
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Get rid of points that are over 500m from previous time point
I have gps data from animals over time. The collars recorded the location of the animal every 15 minutes, but there are some funky points that are obviously an error as the animal could not have moved ...
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Why the buffer geometry column in the GeoDataFrame is in point form although it's actually in polygon form?
I wanted to create a 1.5km buffer for each geocoded point. Here's the screenshot of the geocoded points dataframe.
So I overwrote the geometry column using the code below:
shopping_centres['geom'] = ...
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PyQGIS layer action: Add buffer from clicked-on feature as temporary layer using materialize
In the workshop material "QGIS Automation using Actions", the first example "1.1 Extract a Feature from a Layer" demonstrates how one can extract any country polygon by clicking on ...
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Choosing projection for buffering polygons
I'm working with an application that needs to manages (lat lon) polygons all over the globe. For some reasons i need sometimes to do some operations like buffering, for more convenience, I would like ...
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QGIS Single sided buffer value of specific area and line length on 90 degrees lines
I need to Single Sided Buffer a specific surface based on a line length, on QGIS.
Example:
line length: 60.367 meters.
area needed from single sided buffer: 452.4 square meters.
theoretic Single ...
- 55
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Buffer set of lines in meters that span the entire USA [duplicate]
I imported a shapefile with lines that span the USA. The CRS comes in as EPSG:4326-WGS84. I want to buffer all the lines by 600 meters. The Buffer tool suggests reprojecting since only degree unit ...
2
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1
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141
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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 ...
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Python toolbox in ArcGIS Pro for buffer distance
I am currently to make a Python toolbox in ArcGIS Pro to search and count for tourist attraction/activities that I can decide at some distance to at least two infrastructure facilities, and also using ...
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Fixing holes in the buffered polygon using PyQGIS
My script uses a buffer and dissolves to create polygons around my points. However, there are holes in between the points. I do not want to increase the distance because then it will also cover the ...
- 163
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1
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live ellipses around points in QGIS with orginal point still there?
First of all I have found these: Is there a way to have a 'live' buffer in QGIS and How to add a buffer in QGIS that updates itself for creating a buffer which is updating itself when I move ...
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Buffering line segments that intersect another segment using a specific field value
I am using ArcGIS Pro 3.2 with an Advanced level license.
I have a field (Fish) that scribes whether a stream has fish (dark blue - 100 ft buffer) or no fish(light blue- 35 ft buffer for 500ft ...
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Buffer/expand point contained inside another polygon
I have a point at one corner of a square. I want to buffer that point with a specified size, but I don't want the buffer to extend beyond the boundary of the polygon behind it. The buffer should ...
1
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1
answer
65
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How to merge sample points that are within a certain distance of each other and calculate mean attributes values for merged points in QGIS?
I have a data set like the following in .csv:
sample
latitude
longitude
variable1
variable2
variable3
A
37.18
-115.85
1
0
0
B
37.18
-115.85
1
0
0
C
37.18
-115.85
1
0
0
D
39.44
-117.66
0
1
0
E
39....
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Change wedge buffers from arcs to slices
I recently updated QGIS to 3.34.0 from 3.22.5 and noticed the program renders wedge buffers differently from what I'm used to. They appear as arcs around a point such as
Instead of as slices of a pie ...
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Labeling count points within dissolved buffers in QGIS
I am using the following expression to visualize with a buffer, the nearest neighbors at a given distance:
case when
distance(
$geometry,
array_get(
overlay_nearest(
layer:=@layer,
...
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