org.achtern.AchternEngine.core.math

Class Quaternion

java.lang.Object

org.achtern.AchternEngine.core.math.Quaternion

public class Quaternion
extends Object

Constructor Summary

Constructors

Constructor and Description
Quaternion()
Quaternion(float x, float y, float z, float w)
Quaternion(Matrix4f rotationMatrix)
Quaternion(Quaternion q)
Quaternion(Vector3f axis, float angle)

Method Summary

Methods

Modifier and Type	Method and Description
Quaternion	add(Quaternion q)
Quaternion	conjugate()
float	dot(Quaternion q)
boolean	equals(Object obj)
boolean	equals(Quaternion q)
Quaternion	faceAt(Vector3f direction, Vector3f up)
Quaternion	fromRotationMatrix(Matrix4f rotationMatrix)
Vector3f	getBack()
Vector3f	getDown()
Vector3f	getForward()
Vector3f	getLeft()
Vector3f	getRight()
Vector3f	getUp()
float	getW()
float	getX()
float	getY()
float	getZ()
Quaternion	initRotation(Vector3f axis, float angle)
float	length()
Quaternion	mul(float q)
Quaternion	mul(Quaternion q)
Quaternion	mul(Vector3f v)
Vector3f	mult(Vector3f v)
Quaternion	nlerp(Quaternion dest, float factor, boolean shortest)
void	normalize()
Quaternion	normalized()
void	set(Quaternion q)
void	setW(float w)
void	setX(float x)
void	setY(float y)
void	setZ(float z)
Quaternion	sub(Quaternion q)
Matrix4f	toRotationMatrix()
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

Quaternion

public Quaternion(float x,
          float y,
          float z,
          float w)

Quaternion

public Quaternion(Quaternion q)

Quaternion

public Quaternion()

Quaternion

public Quaternion(Vector3f axis,
          float angle)

Quaternion

public Quaternion(Matrix4f rotationMatrix)

Method Detail

fromRotationMatrix

public Quaternion fromRotationMatrix(Matrix4f rotationMatrix)

initRotation

public Quaternion initRotation(Vector3f axis,
                      float angle)

faceAt

public Quaternion faceAt(Vector3f direction,
                Vector3f up)

length

public float length()

normalize

public void normalize()

normalized

public Quaternion normalized()

conjugate

public Quaternion conjugate()

mul

public Quaternion mul(Quaternion q)

mul

public Quaternion mul(Vector3f v)

mul

public Quaternion mul(float q)

mult

public Vector3f mult(Vector3f v)

sub

public Quaternion sub(Quaternion q)

add

public Quaternion add(Quaternion q)

dot

public float dot(Quaternion q)

toRotationMatrix

public Matrix4f toRotationMatrix()

nlerp

public Quaternion nlerp(Quaternion dest,
               float factor,
               boolean shortest)

getForward

public Vector3f getForward()

getBack

public Vector3f getBack()

getUp

public Vector3f getUp()

getDown

public Vector3f getDown()

getRight

public Vector3f getRight()

getLeft

public Vector3f getLeft()

set

public void set(Quaternion q)

getW

public float getW()

setW

public void setW(float w)

getZ

public float getZ()

setZ

public void setZ(float z)

getY

public float getY()

setY

public void setY(float y)

getX

public float getX()

setX

public void setX(float x)

equals

public boolean equals(Quaternion q)

equals

public boolean equals(Object obj)

Overrides:

equals in class Object

toString

public String toString()

Overrides:

toString in class Object