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Questions tagged [buffer]

A region enclosing a point, line, or polygon at a specified distance.

39 votes
6 answers
42k views

Creating square buffer around point feature using ArcMap

I would like to create a square buffer from a point feature but I do not understand the code that goes into it. Similar questions have been asked on the forums.esri website but that was over 10 ...
Kimball's user avatar
  • 509
37 votes
11 answers
114k views

Performing reverse clip in ArcMap

Is there a way to perform a 'reverse' of the clip function in ArcMap? I am not exactly sure how to explain this so here is a diagram:
Alan Carr's user avatar
  • 2,473
31 votes
6 answers
5k views

How to buffer raster pixels by their values?

The pixels to the left represent tree locations and their associated crown radii (i.e. pixel values ranging from 2 - 5). I would like to buffer these raster pixels by their crown radius value. The ...
Aaron's user avatar
  • 51.7k
28 votes
5 answers
5k views

Buffer neighbouring polygons without overlap using QGIS

Is it possible to create a buffer around neighbouring polygons, so that the new polygons do not overlap? Preferably in QGIS but any other tool will do. So instead of the first result I would like ...
user3170702's user avatar
25 votes
1 answer
38k views

Geopandas buffer using geodataframe while maintaining the dataframe

The objective is to create a geoDataFrame with buffered geometries AND with all the "attributes" of the original geodataframe. I am able to perform a buffer on my geoDataFrame using: gdfHybasBuffer ...
RutgerH's user avatar
  • 3,335
25 votes
1 answer
30k views

Understanding QGIS buffer tool units

I have had no luck getting the buffer tool to accept anything but degrees as units of measure. I have found lots of stuff saying the layer needs to be reprojected and saved but it hasn't worked at ...
haxwithaxe's user avatar
24 votes
4 answers
99k views

Creating buffer in meters

Objective Given a list of coordinates in longitude/latitude, stored as a .csv file, I want to create a buffer with distance of x km around those coordinates. (In case this is relevant, these ...
Herr K.'s user avatar
  • 343
19 votes
4 answers
7k views

Creating one-sided buffers or parallel lines in PostGIS?

I'm looking for a way to create so-called one-sided buffers or parallel lines in PostGIS. Example: 1. buffer, 2. one-side, 3. both-sides I've found some discussion on the mailing list from 2009 and ...
underdark's user avatar
  • 84.3k
17 votes
4 answers
17k views

Buffering in PyQGIS

I'm looking for some examples to do simple python scripts in QGIS. How would I do a buffer analysis on a dataset? I can't seem to find much in the manual and QGIS python that quite matches the ESRI ...
GIS Danny's user avatar
  • 733
16 votes
5 answers
4k views

Seeking Python library (other than ArcPy) for geoprocessing such as buffer? [closed]

Excluding ArcPy, is there any python library which can do geoprocessing, such as buffer/intersect, with shapefiles?
Mingshu's user avatar
  • 511
16 votes
3 answers
4k views

What does buffer mean in QGIS Voronoi dialog?

Could you explain what "buffer" does in the Voronoi dialog i.e. what does the number stand for?
Dervin Thunk's user avatar
16 votes
2 answers
21k views

Creating "Inner Buffer" using ArcGIS for Desktop?

I am currently searching for how to create an "Inner Buffer" in ArcGIS for Desktop? I have a lot of polygons (houses) in one feature class, and one big polygon (in another feature class). I want so ...
ChristianFu's user avatar
16 votes
2 answers
12k views

Buffering in meters/km using WGS84 layers using QGIS

I am using QGIS 1.7.4-Wroclaw and working with an SHP layer in WGS84. I want to buffer out to a certain number of kilometers from this layer using the ftools buffer tool. I understand that the buffer ...
Evan's user avatar
  • 163
15 votes
2 answers
812 views

Creating equally split buffers between points in QGIS

I want to create buffers for every health facility, but they end up overlapping. How can I create buffers that split equally between the distance of 2 health facilities? Example of the result wanted ...
Oualid Fouad's user avatar
15 votes
3 answers
5k views

Achieving Flat-End line buffers in QGIS?

I need to buffer a series of lines by 40m, however I only want the buffer to come off the sides and not off either end of the line. I know in ArcGIS there is a "flat-ends" tickbox that achieves ...
rfreeman92's user avatar

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