org.haphazard.util
Class Vector3D

java.lang.Object
  java.awt.geom.Point2D
      java.awt.geom.Point2D.Double
          org.haphazard.util.Point3D
              org.haphazard.util.Vector3D

All Implemented Interfaces:

java.lang.Cloneable

public class Vector3D

extends Point3D

An ordinary mathematical Vector

Nested Class Summary

Nested classes inherited from class java.awt.geom.Point2D

java.awt.geom.Point2D.Double, java.awt.geom.Point2D.Float

Field Summary

static Vector3D

NULLVECTOR

Fields inherited from class org.haphazard.util.Point3D

z

Fields inherited from class java.awt.geom.Point2D.Double

x, y

Constructor Summary

Vector3D()
Creates a new instance of Vector3D

Vector3D(double x, double y, double z)
Creates a new Vector3D with specified coordinates

Vector3D(Point3D point)
Creates a vector from a point

Vector3D(Point3D origin, Point3D destination)
Creates a vector from origin to destination

Method Summary

Vector3D	cross(Vector3D vector) Takes the cross product of two vectors
double	dot(Vector3D vector) Calculates the dot product of two vectors
double	getLength() Gets the length of this vector
Vector3D	projectOn(Vector3D vector) Projects this vector onto another vector
void	setLength(double length) Sets the length of this vector
void	setVector(Point3D origin, Point3D destination) Creates a vector from origin to destination
void	setVector(Vector3D vector) Sets this vector to be equal to another vector

Methods inherited from class org.haphazard.util.Point3D

add, add, clone, distance, equals, equals, getZ, setLocation, toString

Methods inherited from class java.awt.geom.Point2D.Double

getX, getY, setLocation

Methods inherited from class java.awt.geom.Point2D

distance, distance, distance, distanceSq, distanceSq, distanceSq, equals, hashCode, setLocation

Methods inherited from class java.lang.Object

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

Field Detail

NULLVECTOR

public static final Vector3D NULLVECTOR

Constructor Detail

Vector3D

public Vector3D()

Creates a new instance of Vector3D

Vector3D

public Vector3D(Point3D point)

Creates a vector from a point

Parameters:

point - The point to create from

Vector3D

public Vector3D(Point3D origin,
                Point3D destination)

Creates a vector from origin to destination

Parameters:

origin - The origin of the vector

destination - The destination of the vector

Vector3D

public Vector3D(double x,
                double y,
                double z)

Creates a new Vector3D with specified coordinates

Parameters:

x - The x-coordinate

y - The y-coordinate

z - The z-coordinate

Method Detail

setVector

public void setVector(Point3D origin,
                      Point3D destination)

Creates a vector from origin to destination

Parameters:

origin - The origin of the vector

destination - The destination of the vector

setVector

public void setVector(Vector3D vector)

Sets this vector to be equal to another vector

Parameters:

vector - The vector to set this vector to

getLength

public double getLength()

Gets the length of this vector

Returns:

The length of the vector

setLength

public void setLength(double length)

Sets the length of this vector

Parameters:

length - The length to set

projectOn

public Vector3D projectOn(Vector3D vector)

Projects this vector onto another vector

Parameters:

vector - The vector to project this vector on

Returns:

The projection in a new vector

dot

public double dot(Vector3D vector)

Calculates the dot product of two vectors

Parameters:

vector - The vector to dot with

Returns:

The dot product of the vectors

cross

public Vector3D cross(Vector3D vector)

Takes the cross product of two vectors

Parameters:

vector - The vector to cross with

Returns:

A new vector with the result