cz.cuni.utils.math.extended
Class Segment2D

java.lang.Object
  cz.cuni.utils.math.extended.Segment2D

public class Segment2D
extends java.lang.Object

Contains hash code + method equals (endpoints of the segment must be the same, ordering doesn't metter), once created - shouldn't be changed.

Field Summary

Vertex2D[]	ab Endpoints of the segment.
Vertex2D[]	abN Normalized order of vertices a,b
protected int	hashCode
double	length
Line2D	line Line in which segment lies.

Constructor Summary

Segment2D(Vertex2D a, Vertex2D b)

Method Summary

protected int	countHashCode()
boolean	equals(java.lang.Object o)
boolean	equals(Segment2D s)
Vertex2D	getOtherVertex(Vertex2D previousVertex)
int	hashCode()
boolean	hasVertex(Vertex2D v) Wether v is one of the endpoint of this segment.
double	length()
Tuple2D[]	segmentPoints(Tuple2D point, double distance) Returns points which distance from 'point' is 'distance' and lies inside the segment.
Vertex2D	sharedVertex(Segment2D s)
java.lang.String	toString()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

line

public Line2D line

Line in which segment lies.

ab

public Vertex2D[] ab

Endpoints of the segment.

abN

public Vertex2D[] abN

Normalized order of vertices a,b

length

public double length

hashCode

protected final int hashCode

Constructor Detail

Segment2D

public Segment2D(Vertex2D a,
                 Vertex2D b)

Method Detail

countHashCode

protected int countHashCode()

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

equals

public boolean equals(java.lang.Object o)

Overrides:

equals in class java.lang.Object

equals

public boolean equals(Segment2D s)

segmentPoints

public Tuple2D[] segmentPoints(Tuple2D point,
                               double distance)

Returns points which distance from 'point' is 'distance' and lies inside the segment.

Parameters:

point - ... must be part of the segment's line!

distance -

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object

length

public double length()

hasVertex

public boolean hasVertex(Vertex2D v)

Wether v is one of the endpoint of this segment.

getOtherVertex

public Vertex2D getOtherVertex(Vertex2D previousVertex)

sharedVertex

public Vertex2D sharedVertex(Segment2D s)