org.locationtech.jts.geomgraph

Class EdgeIntersectionList

java.lang.Object

org.locationtech.jts.geomgraph.EdgeIntersectionList

public class EdgeIntersectionList
extends Object

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

Modifier and Type	Method and Description
EdgeIntersection	add(Coordinate 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(Coordinate pt) Tests if the given point is an edge intersection
Iterator	iterator() Returns an iterator of EdgeIntersections
void	print(PrintStream out)

Methods inherited from class java.lang.Object

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

Constructor Detail

EdgeIntersectionList

public EdgeIntersectionList(Edge edge)

Method Detail

add

public EdgeIntersection add(Coordinate 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

iterator

public Iterator iterator()

Returns an iterator of EdgeIntersections

Returns:

an Iterator of EdgeIntersections

isIntersection

public boolean isIntersection(Coordinate pt)

Tests if the given point is an edge intersection

Parameters:

pt - the point to test

Returns:

true if the point is an intersection

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

print

public void print(PrintStream out)