st_makepolygon

Important

This feature is in Public Preview. You can confirm preview enrollment on the Previews page. See Manage Azure Databricks previews.

Constructs a polygon from the input outer boundary and optional array of inner boundaries, represented as closed linestrings.

For the corresponding Databricks SQL function, see st_makepolygon function.

Syntax

from pyspark.databricks.sql import functions as dbf

dbf.st_makepolygon(col1=<col1>, col2=<col2>)

Parameters

Parameter	Type	Description
col1	pyspark.sql.Column or str	A Geometry value representing the outer boundary of the polygon.
col2	pyspark.sql.Column, optional	An optional array of Geometry values representing the inner boundaries of the polygon. Default is an empty array.

Examples

from pyspark.databricks.sql import functions as dbf
df = spark.createDataFrame([('LINESTRING(0 0,10 0,10 10,0 10,0 0)',)], ['wkt'])
df.select(dbf.st_astext(dbf.st_makepolygon(dbf.st_geomfromtext('wkt'))).alias('result')).collect()

[Row(result='POLYGON((0 0,10 0,10 10,0 10,0 0))')]