Questions tagged [buffer]
A region enclosing a point, line, or polygon at a specified distance.
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QGIS 3.22.16 Selecting points near lines
I try to select and delete some roads (lines) that have a False value in the attribute table. Along with that, I need to delete all the gullies (points)along these road. I don't have any related Field ...
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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 ...
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Creating a buffer with less than 1 centimeter using a polyline
Using ArcPy, I aim to create the smallest possible buffer, ideally just 1 millimeter. I have a code, but it only functions properly when I set the buffer parameters to a value of 2 centimeters or more....
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Creating buffer region using ArcMap
I'm trying to exclude a distance of 2km from several built-up area/settlements as an exclusion area.
A little background, I extracted the built-up area from a land use cover map and converted it to ...
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Create road edge network (footpath) using existing road centerlines including junction lines
Currently I have roadcenterline data at hand. On my project, I need to digitize the road edges and importantly the junction lines in intersections and T-Junctions. See image below. (Desired output)
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Exclude areas with building from a map
In ArcMap, I'm trying to create a site suitability map for a solar farm but I have issues with the building footprint file. I'd like to exclude areas with buildings but I have no idea how to go about ...
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Buffer output issue QGIS
I'm using QGIS 3.18 version. I tried to use the buffer tool with the centerline (provided for a sample) of the road.
I found overlapping of buffer polygons and some unusual shapes of polygons too. I ...
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Calculate length lines within point buffer
I have more than 184000 clients. I made a point buffer layer for all of them.
Also, I have a line layer of roads.
I want to calculate the length of lines (roads) within each buffer with a notebook and ...
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Changing turf.js buffered polygon corners to sharp corners in Leaflet?
I'm using Turf JS to make a polygon bigger with 10 meters:
var buffered = turf.buffer(polyGeoJSON, 10, { units: 'meters' });
and after, I'm adding it to the map
var outerBuff = L.geoJSON(buffered , {
...
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PostGIS Multi-Ring Buffers Around Lines
I would like to create a multi-ring buffer around a stream network and add a default floating value to each each buffer ring. I currently have the following SQL query:
CREATE TABLE public....
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Creating multiringbuffer with flat ends using QGIS
In the QGIS-Buffer, you have the option to chose the flat end, by specifying it in the 'End cap style' as you can see in the image:
However, in the MultiRingBuffer tool it seems as if there is no ...
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Buffer accuracy in virtual layer differs from accuracy in PostGIS view
I used virtual layer query to create a buffer for a point as this allowed me to transform its SRID using the PostGIS function ST_Transform, which is not possible with the ready-to-use Buffer algorithm ...
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How to make buffers based off of Manhattan Distance rather than Euclidean distance
I have buffers which need a 1.6 mile radius. However, I want them to be radii for walking distances rather than Euclidean distance to more accurately reflect the data I'm working with. Is this ...
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Single-sided buffer yielding artifacts in QGIS
Inside a graphical modeller with several other steps, I need to use single-sided buffers on two occasions: once to shrink polygon outputs by 10m (right-side buffer, 10m) and once to identify ...
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Limiting Voronoi polygons with circles
Using the following:
Layer 1: Voronoi polygons
Layer 2: Circles buffer for each points, polygons
When I Cut/Intersect in QGIS, here is what I can get as results.
This is ALMOST what I want.
The ...
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QGIS 3.28.7 Split merged line network to surveyed lines network
I need to create a shapefile of unsurvey road section in the network. I am using a surveyed layer (Lines) that does not overlap on the network. It is just parallel. I tried the select by location ...
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149
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Dissolve buffers if the intersection/overlap is greater than 50%
I am trying to create a buffer of 5km radius around my points. I am able to build those. Now I want that the two overlapping buffers to dissolve if the intersection/overlap of those shapes is greater ...
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Custom Shapely Cap style
I am currently using shapely and geopandas to parse through a shapefile containing lines to build a rail network.
I am using shapely to create a buffer to identify sections of track that cannot be ...
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ArcPy add XY points and buffer
I've got some ArcPy code below which adds all the CSVs in a folder, adds them to the map (AddXYTableToPoint) and buffers the points.
I'm running in a Python notebook in ArcGIS Pro I only want to add ...
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Creating a buffer that tapers in thickness in GeoPandas
I'm currently working on a project involving creating an isochrone map of historical water travel. At the moment, I have a geodataframe containing a starting point on the river, a multipoint of the ...
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Draw a buffer around the world map while preserving national borders
I'm quite advanced in using GIS, but I haven't found a solution to this problem yet. I have a few million dots showing a tweet location, several hundred thousand of which are outside the country's ...
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QGIS expression selecting features intersecting single buffer that has certain distance to the buffered feature
I am looking for an expression in QGIS that allows me to select polygon features (layer 1, red polygons), that intersect more than 50 percent of the buffer ring around a point feature of another layer ...
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116
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How to calculate the weighted average of a raster for the pixels touching a layer corresponding to a buffer (ArcGIS Pro)
I have a first raster layer which represents pixels of about 30m by 30m.My second layer corresponds to a circular buffer with a radius of 500m (I calculated the buffer from a point layer)
I have a ...
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42
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Adding overlapping routes when there is no overlapping route using buffer and union
I am trying to do something to do with routes, Let's say I have 3 routes rt1 and rt2 are overlapping routes that share some length but r3 does not overlap with either of them. How would I just add the ...
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28
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Buffer based on shapefile not lining up with Landsat as precisely as needed in ArcGIS Pro
I am trying to measure beach quality of different coastal districts in Jamaica in ArcGIS Pro. To do this I created a 100m buffer from an administrative shapefile by dissolving the shapefile into one ...
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Creating 100m Buffer From coastline inward, for administrative municipalities in ArcGIS Pro
I am attempting to create a 100m Buffer from the coastline inward for the entire perimeter of Jamaica.
I will be overlaying Landsat images over an administrative shapefiles. My end goal is to do ...
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SqlGeometry STBuffer producing abnormal polygon shape
I am currently not able to figure out what is causing the abnormal shape when drawing a polygon onto the map as shown below.
Instead of being a complete polygon, there seems to be a triangle in the ...
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Create radius line and label the length to a buffer geometry generated
From a point geometry layer, I'm using an expression with buffer function as shown in the screenshot below:
I would like to add two more expressions to this point geometry layer:
An expression for ...
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How to create variable buffers with nearest mean distance radius value
Given a point geometries collection, I would like to use an expression which:
Find the 4 points nearest to each other
Create the buffer for each group of 4 points with the radius distance value ...
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Scale features based on field value [duplicate]
I have a polygon dataset of 100+ tree canopies - all different shapes and sizes, which I am required to scale by a specific factor to project growth over a number of decades. All canopies have ...
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How to subtract buffers of identical ID in R (terra)?
For a research project, I need to define treated and control areas around land parcels, located by coordinates and uniquely identified by an ID. The treated areas consist of disk-shaped buffers around ...
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258
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Buffer and separate two polygons from upper and lower buffer line using shapely or geopandas
I want to create a buffer (20km) from a line, and then separate them into two polygons with the line is boundary between two polygons (picture demo below. The desired output would be two polygons such ...
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How to calculate or extract the area in square meter of different land use and land cover features within a Multi-ring buffer
I have created a multi-ring buffer in 100, 200, 300, 400 and 5000 meters around a point data, file named as vector_buffer.shp.
Besides, I have also a raster layer with different land use and land ...
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Select buffers that do not overlap
I have a dataset with amenities. I've created a buffer of 200 meters around each amenity.
m_circles <- st_buffer(m, dist = 200)
It looks like this:
How can I keep only the buffers (polygons) that ...
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Polyline FLAT Buffer: How to create coverage beyond ends of line? (VISUAL REQUEST)
To clarify, if we consider the output of a buffer when choosing FLAT or ROUND.
I'm wondering if there is a way to extend the area coverage of the FLAT type beyond the ends of the line with a similar (...
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Avoid losing overlapping areas when buffering line with Python
LineString is the path of the transport on the field with attached equipment. Is it possible to use GeoPandas or third-party Python libraries to find overlapping areas when buffering a path line to a ...
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Clipping buffers to joined polygons in QGIS
I have two vector layers in QGIS:
a layer containing building outlines for houses
a layer containing parcel outlines for properties
I used a spatial join (join attributes by location) to connect the ...
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Creating a series of buffers along a stream polygon at set intervals in ArcGIS Pro
I have a set of streamlines and a polygon layer showing the extents of water outwards from those lines. I will be buffering out 50-ft from the polygon layer to gather information about land-use in the ...
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Trying to make a binary raster with reclassify but the new values are very high
I am trying to use the reclassify tool to make a binary raster of a hydrological network shapefile which I used the buffer tool on before hand. Here are the settings I put through the reclassify tool :...
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How do I created a Buffer widget for Experience Builder the creates a Buffer from a selected Parcel or polygon?
How do I created a Buffer widget for Experience Builder so the user can create a Buffer from a selected Parcel or polygon?
Can I publish a Geoprocessing tool from ArcGIS Pro such the buffer to AGOL?
...
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Buffered polygon is not as expected QGIS
I used the Buffer tool in QGIS (-10 m, all other parameters as default) on the red polygon; the result is the orange polygon.
I drew a blue arrow where it seemed that the buffer did not work well. I ...
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Calculate road density within buffers in R [closed]
I am running the following code to calculate road density within buffers, first I thought It was working great, but then did a few reality checks, where the code has given more than 1 as density and ...
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Using ModelBuilder to generate multiple buffers based on multiple attribute fields for range of features
I'm trying to create a multi ring buffer for features in a single feature class. Each feature has 5 different buffer values, and each feature may or may not be present when the tool is run.
Currently, ...
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102
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How to divide polygon into equal length but irregular widths based on depth and coastline
I've been having issues with dividing my polygon (coastline to 300ft depth contour around Oahu) on ArcGIS Pro 3.1.0. I need to create 100 equal-length polygons along the coastline, but the other side ...
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Difference between df.geometry.buffer and df.geometry.scale in plain english
I am still struggling to grasp the difference between df.geometry.buffer and df.geometry.scale.
They can both be used to increase the size of a polygon but how are they different?
While in df.geometry....
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Buffer a polyline by variable distance [closed]
I have a list of points (x,y) that constitute a polyline, each point also has a value (v).
I want a polygon which is the buffer of the polyline with variable distance v. So at each point, the polygon ...
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How to get buffers to remain independent when overlapping in ArcGIS Pro?
I am using ArcGIS Pro 3.0.3.
I have several survey sites that I've put a 100m buffer around to see what the habitat composition is for each of those buffered areas.
There are several sites that are ...
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