oracle.spatial.spark.vector.sql.udf.function

Class STConvexHull

java.lang.Object

oracle.spatial.spark.vector.sql.udf.function.STConvexHull

public class STConvexHull
extends java.lang.Object

Returns the convex hull of the input geometry as a ST_Geometry object. Format: ST_ConvexHull(geometry ST_Geometry) - returns the convex hull of the given geometry as a ST_Geometry object Example: select ST_ConvexHull(ST_MultiPoint(' { "type": "MultiPoint","coordinates": [ [1, 2], [-1, -2], [5, 6] ] }', 0)) from table LIMIT 1; -- return {"type":"Polygon", "coordinates":[[[5,6],[1,2],[-1,-2],[5,6]]],"crs":{"type":"name","properties":{"name":"EPSG:0"}}}

Constructor Summary

Constructors

Constructor and Description
STConvexHull()

Method Summary

Modifier and Type	Method and Description
java.lang.String	call(java.lang.String geometry) Execution call for ConvexHull UDF

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

STConvexHull

public STConvexHull()

Method Detail

call

public java.lang.String call(java.lang.String geometry)
                      throws java.lang.Exception

Execution call for ConvexHull UDF

Parameters:

geometry - Geometry parameter

Returns:

String the convex hull for the geometry, null if there is an error

Throws:

java.lang.Exception