inra.ijpb.geometry

Class StraightLine2D

java.lang.Object

inra.ijpb.geometry.StraightLine2D

public class StraightLine2D
extends Object

A straight line in the plane. Defined by an origin and a direction.

Author:

dlegland

Constructor Summary

Constructors

Constructor and Description
StraightLine2D(Point2D source, Point2D target) Creates a new straight line from two points belonging to the line
StraightLine2D(Point2D origin, Vector2D direction) Creates a new straight line from an origin and a direction vector.

Method Summary

Modifier and Type	Method and Description
double	distance(Point2D point) Computes the distance between this line and a query point.
Vector2D	getDirection()
Point2D	getOrigin()

Methods inherited from class java.lang.Object

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

Constructor Detail

StraightLine2D

public StraightLine2D(Point2D origin,
                      Vector2D direction)

Creates a new straight line from an origin and a direction vector.

Parameters:

origin - the origin of the line

direction - the direction vector of the line

StraightLine2D

public StraightLine2D(Point2D source,
                      Point2D target)

Creates a new straight line from two points belonging to the line

Parameters:

source - the first point (used as origin)

target - the second point (used to compute the direction vector)

Method Detail

getOrigin

public Point2D getOrigin()

Returns:

the origin of this line

getDirection

public Vector2D getDirection()

Returns:

the direction vector of this line

distance

public double distance(Point2D point)

Computes the distance between this line and a query point.

Parameters:

point - the query point

Returns:

the distance between the point and the line