org.openstreetmap.josm.data.osm

Class MultipolygonCreate

java.lang.Object

org.openstreetmap.josm.data.osm.MultipolygonCreate

public class MultipolygonCreate
extends Object

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	MultipolygonCreate.JoinedPolygon Represents one polygon that consists of multiple ways.
(package private) static class	MultipolygonCreate.PolygonLevel Helper storage class for finding findOuterWays

Field Summary

Fields

Modifier and Type	Field and Description
List<MultipolygonCreate.JoinedPolygon>	innerWays
List<MultipolygonCreate.JoinedPolygon>	outerWays

Constructor Summary

Constructors

Constructor and Description
MultipolygonCreate()
MultipolygonCreate(List<MultipolygonCreate.JoinedPolygon> outerWays, List<MultipolygonCreate.JoinedPolygon> innerWays)

Method Summary

Modifier and Type	Method and Description
private List<MultipolygonCreate.PolygonLevel>	findOuterWaysRecursive(int level, Collection<MultipolygonCreate.JoinedPolygon> boundaryWays) Collects outer way and corresponding inner ways from all boundaries.
private String	makeFromPolygons(List<MultipolygonCreate.JoinedPolygon> polygons) This method analyzes which ways are inner and which outer.
String	makeFromWays(Collection<Way> ways) Splits ways into inner and outer JoinedWays.

Methods inherited from class java.lang.Object

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

Field Detail

outerWays

public List<MultipolygonCreate.JoinedPolygon> outerWays

innerWays

public List<MultipolygonCreate.JoinedPolygon> innerWays

Constructor Detail

MultipolygonCreate

public MultipolygonCreate(List<MultipolygonCreate.JoinedPolygon> outerWays,
                          List<MultipolygonCreate.JoinedPolygon> innerWays)

MultipolygonCreate

public MultipolygonCreate()

Method Detail

makeFromWays

public String makeFromWays(Collection<Way> ways)

Splits ways into inner and outer JoinedWays. Sets innerWays and outerWays to the result. TODO: Currently cannot process touching polygons. See code in JoinAreasAction.

Parameters:

ways - ways to analyze

Returns:

error description if the ways cannot be split, null if all fine.

makeFromPolygons

private String makeFromPolygons(List<MultipolygonCreate.JoinedPolygon> polygons)

This method analyzes which ways are inner and which outer. Sets innerWays and outerWays to the result.

Parameters:

polygons - polygons to analyze

Returns:

error description if the ways cannot be split, null if all fine.

findOuterWaysRecursive

private List<MultipolygonCreate.PolygonLevel> findOuterWaysRecursive(int level,
                                                                     Collection<MultipolygonCreate.JoinedPolygon> boundaryWays)

Collects outer way and corresponding inner ways from all boundaries.

Parameters:

boundaryWays -

Returns:

the outermostWay, or null if intersection found.