GeoDataFrame.exterior - Wherobots

Return the outer boundary of each polygon geometry. Returns a GeoSeries of LineStrings representing the exterior ring of each polygon. For non-polygon geometries, returns None.

Sedona’s ST_ExteriorRing returns a LINESTRING rather than a LINEARRING. The coordinates are identical to those of the exterior ring but the geometry type differs from geopandas, which returns a LINEARRING.

Signature

GeoDataFrame.exterior

Returns

GeoSeries

Examples

>>> from sedona.spark.geopandas import GeoSeries
>>> from shapely.geometry import Polygon
>>> s = GeoSeries(
...     [Polygon([(0, 0), (1, 0), (1, 1), (0, 1)])]
... )
>>> s.exterior
0    LINESTRING (0 0, 1 0, 1 1, 0 1, 0 0)
dtype: geometry