math
Class Vector3D

java.lang.Object
  math.Vector
      math.Vector3D

public class Vector3D
extends Vector

a three dimensional vector extending the 4 vector the fourth component is therefor 0

Field Summary

Fields inherited from class math.Vector

w, x, y, z

Constructor Summary

Vector3D()
standard constructor

Vector3D(double x, double y, double z)
constructor, creates a vector from three doubles

Vector3D(Point3D start, Point3D end)
constructor, creates a vector from a start and an end point

Vector3D(Vector3D v)
copy constructor

Method Summary

void	add(Vector3D v) add a vector
double	dot(Vector3D v) returns the scalar product with a vector
void	minus(Vector3D v) subtracts a vector
boolean	normalize() normalize the vector
void	scale(double s) scales the vector with the double s
void	set(double x, double y, double z) sets the vector
void	set(Vector3D v) sets the vector

Methods inherited from class math.Vector

dot

Methods inherited from class java.lang.Object

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

Constructor Detail

Vector3D

public Vector3D()

standard constructor

Vector3D

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

constructor, creates a vector from three doubles

Parameters:

x -

y -

z -

Vector3D

public Vector3D(Vector3D v)

copy constructor

Parameters:

v - [in] vector

Vector3D

public Vector3D(Point3D start,
                Point3D end)

constructor, creates a vector from a start and an end point

Parameters:

start - [in] start point

end - [in] end point

Method Detail

normalize

public boolean normalize()

normalize the vector

Overrides:

normalize in class Vector

Returns:

success-state

dot

public double dot(Vector3D v)

returns the scalar product with a vector

Parameters:

v - [in] vector

Returns:

this dot v

scale

public void scale(double s)

scales the vector with the double s

Parameters:

s - scale

set

public void set(Vector3D v)

sets the vector

Parameters:

v - [in] vector

set

public void set(double x,
                double y,
                double z)

sets the vector

Parameters:

x -

y -

z -

add

public void add(Vector3D v)

add a vector

Parameters:

v - the vector to add

minus

public void minus(Vector3D v)

subtracts a vector

Parameters:

v - the vector to subtract