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Important
This feature is in Public Preview.
Returns the 2D Cartesian axis-aligned minimum bounding box (envelope) of the input non-empty geometry, as a geometry. Empty input geometries are returned as is.
For the corresponding Databricks SQL function, see st_envelope function.
Syntax
from pyspark.databricks.sql import functions as dbf
dbf.st_envelope(col=<col>)
Parameters
| Parameter | Type | Description |
|---|---|---|
col |
pyspark.sql.Column or str |
A Geometry value. |
Examples
from pyspark.databricks.sql import functions as dbf
df = spark.createDataFrame([('POLYGON((-1 0,0 -1,1 0,0 1,-1 0))',)], ['wkt'])
df.select(dbf.st_asewkt(dbf.st_envelope(dbf.st_geomfromtext('wkt', 4326))).alias('result')).collect()
[Row(result='SRID=4326;POLYGON((-1 -1,-1 1,1 1,1 -1,-1 -1))')]