math
Class Vector2D

java.lang.Object
  math.Vector2D

public class Vector2D
extends java.lang.Object

a 2 dimensional vector

Field Summary

double	x
double	y

Constructor Summary

Vector2D(double x, double y)
constructor

Vector2D(Point2D start, Point2D end)
constructor, creates a vector as the difference between a start and end point

Vector2D(Vector2D v)

Method Summary

double

magnitude()

Methods inherited from class java.lang.Object

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

Field Detail

x

public double x

y

public double y

Constructor Detail

Vector2D

public Vector2D(double x,
                double y)

constructor

Parameters:

x -

y -

Vector2D

public Vector2D(Vector2D v)

Vector2D

public Vector2D(Point2D start,
                Point2D end)

constructor, creates a vector as the difference between a start and end point

Parameters:

start - [in] start point

end - [in] end point

Method Detail

magnitude

public double magnitude()

Returns:

the magnitude (length) of the vector