st_setpoint

Preview

This feature is in Public Preview.

Sets the n-th point in the input linestring Geography or Geometry.

For the corresponding Databricks SQL function, see st_setpoint function.

Syntax

Python

from pyspark.databricks.sql import functions as dbf

dbf.st_setpoint(col1=<col1>, col2=<col2>, col3=<col3>)

Parameters

Parameter	Type	Description
col1	pyspark.sql.Column or str	A Geography or Geometry value representing a linestring.
col2	pyspark.sql.Column or int	A 1-based position in the linestring where the new point should be added.
col3	pyspark.sql.Column or str	A Geography or Geometry value representing a point.

Examples

Python

from pyspark.databricks.sql import functions as dbf
df = spark.createDataFrame([('LINESTRING(1 2,3 4)','POINT(7 8)',)], ['wkt1', 'wkt2'])
df.select(dbf.st_astext(dbf.st_setpoint(dbf.st_geomfromtext('wkt1'), 1, dbf.st_geomfromtext('wkt2'))).alias('result')).collect()

Output

[Row(result='LINESTRING(7 8,3 4)')]

Python

from pyspark.databricks.sql import functions as dbf
df = spark.createDataFrame([('LINESTRING ZM (1 2 3 4,5 6 7 8)','POINT M (0 9 99)',)], ['wkt1', 'wkt2'])
df.select(dbf.st_asewkt(dbf.st_setpoint(dbf.st_geogfromtext('wkt1'), -1, dbf.st_geogfromtext('wkt2'))).alias('result')).collect()

Output

[Row(result='SRID=4326;LINESTRING ZM (1 2 3 4,0 9 0 99)')]