Class GeometryMapper

java.lang.Object

org.locationtech.jts.geom.util.GeometryMapper

public class GeometryMapper
extends Object

Methods to map various collections of Geometrys via defined mapping functions.

Author:

Martin Davis

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static interface	GeometryMapper.MapOp	An interface for geometry functions that map a geometry input to a geometry output.

Constructor Summary

Constructors

Constructor	Description
GeometryMapper()

Method Summary

Modifier and Type	Method	Description
static Geometry	flatMap(Geometry geom, int emptyDim, GeometryMapper.MapOp op)	Maps the atomic elements of a Geometry (which may be atomic or composite) using a GeometryMapper.MapOp mapping operation into an atomic Geometry or a flat collection of the most specific type.
static Collection	map(Collection geoms, GeometryMapper.MapOp op)
static Geometry	map(Geometry geom, GeometryMapper.MapOp op)	Maps the members of a Geometry (which may be atomic or composite) into another Geometry of most specific type.

Methods inherited from class Object

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

Constructor Details

GeometryMapper

public GeometryMapper()

Method Details

map

public static Geometry map(Geometry geom,
 GeometryMapper.MapOp op)

Maps the members of a Geometry (which may be atomic or composite) into another Geometry of most specific type. null results are skipped. In the case of hierarchical GeometryCollections, only the first level of members are mapped.

Parameters:

geom - the input atomic or composite geometry

op - the mapping operation

Returns:

a result collection or geometry of most specific type

map

public static Collection map(Collection geoms,
 GeometryMapper.MapOp op)

flatMap

public static Geometry flatMap(Geometry geom,
 int emptyDim,
 GeometryMapper.MapOp op)

Maps the atomic elements of a Geometry (which may be atomic or composite) using a GeometryMapper.MapOp mapping operation into an atomic Geometry or a flat collection of the most specific type. null and empty values returned from the mapping operation are discarded.

Parameters:

geom - the geometry to map

emptyDim - the dimension of empty geometry to create

op - the mapping operation

Returns:

the mapped result