quaternion Class Reference

#include <quaternion.h>

Public Member Functions

• void fromAngleAxis (f32 angle, const vector3df &axis)
• quaternion getConjugate () const
• f32 getDotProduct (const quaternion &other) const

  calculates the dot product
  

• matrix4 getMatrix () const

  Creates a matrix from this quaternion.
  

• void makeInverse ()

  Inverts this quaternion.
  

• quaternion & normalize ()

  normalizes the quaternion
  

• quaternion operator * (f32 s) const

  multiplication operator
  

• quaternion operator * (const quaternion &other) const

  multiplication operator
  

• quaternion & operator *= (const quaternion &other)

  multiplication operator
  

• quaternion & operator *= (f32 s)

  multiplication operator
  

• quaternion operator+ (const quaternion &other) const

  add operator
  

• quaternion & operator= (const matrix4 &other)

  matrix assignment operator
  

• quaternion & operator= (const quaternion &other)

  assignment operator
  

• bool operator== (const quaternion &other) const

  equal operator
  

• quaternion (const matrix4 &mat)

  Constructor which converts a matrix to a quaternion.
  

• quaternion (f32 x, f32 y, f32 z)

  Constructor which converts euler angles to a quaternion.
  

• quaternion (f32 X, f32 Y, f32 Z, f32 W)

  Constructor.
  

• quaternion ()

  Default Constructor.
  

• vector3df quaternion::operator * (const vector3df &v) const

  multiplication operator
  

• void set (f32 x, f32 y, f32 z)

  sets new quaternion based on euler angles
  

• void set (f32 x, f32 y, f32 z, f32 w)

  sets new quaternion
  

• quaternion slerp (quaternion q1, quaternion q2, f32 time)

  Interpolates the quaternion between to quaternions based on time.
  

• void toEuler (vector3df &euler)

Data Fields

• f32 W
• f32 X
• f32 Y
• f32 Z

---

Constructor & Destructor Documentation

quaternion

(

)

[inline]

quaternion	(	f32	X,
		f32	Y,
		f32	Z,
		f32	W
	)			[inline]

quaternion	(	f32	x,
		f32	y,
		f32	z
	)			[inline]

quaternion

(

const matrix4 &

mat

)

[inline]

---

Member Function Documentation

void fromAngleAxis	(	f32	angle,
		const vector3df &	axis
	)			[inline]

axis must be unit length The quaternion representing the rotation is q = cos(A/2)+sin(A/2)*(x*i+y*j+z*k)

quaternion getConjugate

(

)

const [inline]

f32 getDotProduct

(

const quaternion &

other

)

const [inline]

matrix4 getMatrix

(

)

const [inline]

void makeInverse

(

)

[inline]

quaternion & normalize

(

)

[inline]

quaternion operator *

(

f32

s

)

const [inline]

quaternion operator *

(

const quaternion &

other

)

const [inline]

quaternion & operator *=

(

const quaternion &

other

)

[inline]

quaternion & operator *=

(

f32

s

)

[inline]

quaternion operator+

(

const quaternion &

other

)

const [inline]

quaternion & operator=

(

const matrix4 &

other

)

[inline]

quaternion & operator=

(

const quaternion &

other

)

[inline]

bool operator==

(

const quaternion &

other

)

const [inline]

vector3df quaternion::operator *

(

const vector3df &

v

)

const

void set	(	f32	x,
		f32	y,
		f32	z
	)			[inline]

void set	(	f32	x,
		f32	y,
		f32	z,
		f32	w
	)			[inline]

quaternion slerp	(	quaternion	q1,
		quaternion	q2,
		f32	time
	)			[inline]

void toEuler

(

vector3df &

euler

)

[inline]

---

Field Documentation

f32 W

f32 X

f32 Y

f32 Z

---