com.revolsys.jts.geomgraph

Class EdgeIntersectionList

java.lang.Object

com.revolsys.jts.geomgraph.EdgeIntersectionList

All Implemented Interfaces:

Iterable<EdgeIntersection>

public class EdgeIntersectionList
extends Object
implements Iterable<EdgeIntersection>

A list of edge intersections along an Edge. Implements splitting an edge with intersections into multiple resultant edges.

Version:

1.7

Constructor Summary

Constructors

Constructor and Description
EdgeIntersectionList(Edge edge)

Method Summary

Methods

Modifier and Type	Method and Description
EdgeIntersection	add(Point intPt, int segmentIndex, double dist) Adds an intersection into the list, if it isn't already there.
void	addEndpoints() Adds entries for the first and last points of the edge to the list
void	addSplitEdges(List edgeList) Creates new edges for all the edges that the intersections in this list split the parent edge into.
boolean	isIntersection(Point pt) Tests if the given point is an edge intersection
Iterator<EdgeIntersection>	iterator() Returns an iterator of EdgeIntersections
void	print(PrintStream out)

Methods inherited from class java.lang.Object

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

Constructor Detail

EdgeIntersectionList

public EdgeIntersectionList(Edge edge)

Method Detail

add

public EdgeIntersection add(Point intPt,
                   int segmentIndex,
                   double dist)

Adds an intersection into the list, if it isn't already there. The input segmentIndex and dist are expected to be normalized.

Returns:

the EdgeIntersection found or added

addEndpoints

public void addEndpoints()

Adds entries for the first and last points of the edge to the list

addSplitEdges

public void addSplitEdges(List edgeList)

Creates new edges for all the edges that the intersections in this list split the parent edge into. Adds the edges to the input list (this is so a single list can be used to accumulate all split edges for a Geometry).

Parameters:

edgeList - a list of EdgeIntersections

isIntersection

public boolean isIntersection(Point pt)

Tests if the given point is an edge intersection

Parameters:

pt - the point to test

Returns:

true if the point is an intersection

iterator

public Iterator<EdgeIntersection> iterator()

Returns an iterator of EdgeIntersections

Specified by:

iterator in interface Iterable<EdgeIntersection>

Returns:

an Iterator of EdgeIntersections

print

public void print(PrintStream out)