geopandas.GeoSeries.convex_hull

property GeoSeries.convex_hull

Returns a GeoSeries of geometries representing the convex hull of each geometry.

The convex hull of a geometry is the smallest convex Polygon containing all the points in each geometry, unless the number of points in the geometric object is less than three. For two points, the convex hull collapses to a LineString; for 1, a Point.

See also

GeoSeries.envelope

bounding rectangle geometry

Examples

>>> from shapely.geometry import Polygon, LineString, Point, MultiPoint
>>> s = geopandas.GeoSeries(
...     [
...         Polygon([(0, 0), (1, 1), (0, 1)]),
...         LineString([(0, 0), (1, 1), (1, 0)]),
...         MultiPoint([(0, 0), (1, 1), (0, 1), (1, 0), (0.5, 0.5)]),
...         MultiPoint([(0, 0), (1, 1)]),
...         Point(0, 0),
...     ]
... )
>>> s
0    POLYGON ((0.00000 0.00000, 1.00000 1.00000, 0....
1    LINESTRING (0.00000 0.00000, 1.00000 1.00000, ...
2    MULTIPOINT (0.00000 0.00000, 1.00000 1.00000, ...
3        MULTIPOINT (0.00000 0.00000, 1.00000 1.00000)
4                              POINT (0.00000 0.00000)
dtype: geometry

>>> s.convex_hull
0    POLYGON ((0.00000 0.00000, 0.00000 1.00000, 1....
1    POLYGON ((0.00000 0.00000, 1.00000 1.00000, 1....
2    POLYGON ((0.00000 0.00000, 0.00000 1.00000, 1....
3        LINESTRING (0.00000 0.00000, 1.00000 1.00000)
4                              POINT (0.00000 0.00000)
dtype: geometry

geopandas.GeoSeries.centroid geopandas.GeoSeries.envelope