org.apache.commons.math3.geometry.euclidean.twod
Class Segment

java.lang.Object
  org.apache.commons.math3.geometry.euclidean.twod.Segment

public class Segment
extends Object

Simple container for a two-points segment.

Since:

3.0

Version:

$Id: Segment.java 7721 2013-02-14 14:07:13Z CardosoP $

Constructor Summary

Segment(Vector2D start, Vector2D end, Line line)
Build a segment.

Method Summary

double	distance(Vector2D p) Calculates the shortest distance from a point to this line segment.
Vector2D	getEnd() Get the end point of the segment.
Line	getLine() Get the line containing the segment.
Vector2D	getStart() Get the start point of the segment.

Methods inherited from class java.lang.Object

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

Constructor Detail

Segment

public Segment(Vector2D start,
               Vector2D end,
               Line line)

Build a segment.

Parameters:

start - start point of the segment

end - end point of the segment

line - line containing the segment

Method Detail

getStart

public Vector2D getStart()

Get the start point of the segment.

Returns:

start point of the segment

getEnd

public Vector2D getEnd()

Get the end point of the segment.

Returns:

end point of the segment

getLine

public Line getLine()

Get the line containing the segment.

Returns:

line containing the segment

distance

public double distance(Vector2D p)

Calculates the shortest distance from a point to this line segment.

If the perpendicular extension from the point to the line does not cross in the bounds of the line segment, the shortest distance to the two end points will be returned.

Algorithm adapted from: Thread @ Codeguru

Parameters:

p - to check

Returns:

distance between the instance and the point

Since:

3.1