geopandas.GeoSeries.buffer

GeoSeries.buffer(distance, resolution=16, **kwargs)

Returns a GeoSeries of geometries representing all points within a given distance of each geometric object.

See http://shapely.readthedocs.io/en/latest/manual.html#object.buffer for details.

Parameters
distancefloat, np.array, pd.Series

The radius of the buffer. If np.array or pd.Series are used then it must have same length as the GeoSeries.

resolutionint (optional, default 16)

The resolution of the buffer around each vertex.

Examples

>>> from shapely.geometry import Point, LineString, Polygon
>>> s = geopandas.GeoSeries(
...     [
...         Point(0, 0),
...         LineString([(1, -1), (1, 0), (2, 0), (2, 1)]),
...         Polygon([(3, -1), (4, 0), (3, 1)]),
...     ]
... )
>>> s
0                              POINT (0.00000 0.00000)
1    LINESTRING (1.00000 -1.00000, 1.00000 0.00000,...
2    POLYGON ((3.00000 -1.00000, 4.00000 0.00000, 3...
dtype: geometry

>>> s.buffer(0.2)
0    POLYGON ((0.20000 0.00000, 0.19904 -0.01960, 0...
1    POLYGON ((0.80000 0.00000, 0.80096 0.01960, 0....
2    POLYGON ((2.80000 -1.00000, 2.80000 1.00000, 2...
dtype: geometry

**kwargs accept further specification as join_style and cap_style. See the following illustration of different options.

(Source code, png, hires.png, pdf)

../../../_images/buffer.png
geopandas.GeoSeries.union geopandas.GeoSeries.centroid