ST_SimplifyPolygonHull (Python)

Compute a topology-preserving simplified outer or inner hull of a polygonal geometry. SQL reference: ST_SimplifyPolygonHull

Signature

from sedona.spark.sql.st_functions import ST_SimplifyPolygonHull

ST_SimplifyPolygonHull(
    geometry: ColumnOrName,
    vertexFactor: ColumnOrNameOrNumber,
    isOuter: Optional[Union[ColumnOrName, bool]] = None,
) -> Column

Parameters

ColumnOrName

required

Polygonal geometry column to simplify.

ColumnOrNameOrNumber

required

Fraction of the vertices to keep, from 0 to 1, as either a number or numeric column. Lower values give simpler hulls; 1.0 returns the original geometry.

Optional[Union[ColumnOrName, bool]]

default:"None"

Whether to compute an outer hull, which encloses the input, rather than an inner hull, which lies within it. Default is True.

Returns

Column

Simplified hull as a geometry column.

​Signature

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Signature

Parameters

Returns