GeometryMapper (JTS Topology Suite 1.20.0 API)

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

All Methods Static Methods Concrete Methods
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 java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - GeometryMapper
```
public GeometryMapper()
```
- Method Detail
  - 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