com.bbn.openmap.geo
Class BoundaryCrossing.Collector

java.lang.Object
  com.bbn.openmap.geo.MatchCollector.SetMatchCollector
      com.bbn.openmap.geo.BoundaryCrossing.Collector

All Implemented Interfaces:

MatchCollector

Enclosing class:

BoundaryCrossing

public static class BoundaryCrossing.Collector
extends MatchCollector.SetMatchCollector

A Collector is an object that organizes boundary crossings, as discovered by CrossingIntersection class.

Author:

dietrick

Nested Class Summary

Nested classes/interfaces inherited from interface com.bbn.openmap.geo.MatchCollector

MatchCollector.CollectionMatchCollector, MatchCollector.Pair, MatchCollector.PairArrayMatchCollector, MatchCollector.SetMatchCollector

Field Summary

Fields inherited from class com.bbn.openmap.geo.MatchCollector.SetMatchCollector

result

Constructor Summary

BoundaryCrossing.Collector()

Method Summary

protected void	addCrossing(BoundaryCrossing bc) Add a BoundaryCrossing to the collection of crossings.
protected void	addCrossing(java.util.Collection c, GeoSegment segment, GeoRegion region) Add a BoundaryCrossing associated with a segment and region.
protected void	compact() An important method that cleans up the segment/region BoundaryCrossing order, and also resolves the BoundaryCrossing.in/out settings for regions.
java.util.Iterator	getCrossings()

Methods inherited from class com.bbn.openmap.geo.MatchCollector.SetMatchCollector

collect, iterator

Methods inherited from class java.lang.Object

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

Constructor Detail

BoundaryCrossing.Collector

public BoundaryCrossing.Collector()

Method Detail

addCrossing

protected void addCrossing(BoundaryCrossing bc)

Add a BoundaryCrossing to the collection of crossings.

Parameters:

bc -

addCrossing

protected void addCrossing(java.util.Collection c,
                           GeoSegment segment,
                           GeoRegion region)

Add a BoundaryCrossing associated with a segment and region. This is the main thinkin' method, called by the CrossingInspector with lists of crossings. This method organizes and orders BorderCrossings according to the segment order of the path that caused the crossings.

Parameters:

c - A list of Geos that a segement intersects with a region.

segment - GeoSegment

region - GeoRegion

compact

protected void compact()

An important method that cleans up the segment/region BoundaryCrossing order, and also resolves the BoundaryCrossing.in/out settings for regions. Must be called before the crossing iterator is retrieved, but the BoundaryCrossing method does that.

getCrossings

public java.util.Iterator getCrossings()