Quaternion Class Reference

Quaternion is an extension to complex numbers. More...

#include <trigonometry.h>

Public Member Functions
	Quaternion (const Vector3 &axis, float angle)
	Quaternion (double s, double x, double y, double z)
void	getRotation (Vector3 &axis, float &angle) const
Quaternion	inverse () const
Quaternion	operator* (const Quaternion &) const
Quaternion &	operator*= (const Quaternion &)
Quaternion	operator+ (const Quaternion &) const
Quaternion &	operator+= (const Quaternion &)
Quaternion	operator- (const Quaternion &) const
Quaternion &	operator-= (const Quaternion &)
Coord3	rotate (const Coord3 &) const
void	setRotation (const Vector3 &axis, float angle)

Public Attributes
double	s_
Vector3	vec_

Detailed Description

Quaternion is an extension to complex numbers.

A Quaternion is represented by the equation:
q = s + xi + yj + zk
where: i*i = j*j = k*k = -1.

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Constructor & Destructor Documentation

Quaternion() [1/2]

Quaternion::Quaternion	(	double	s,
		double	x,
		double	y,
		double	z )

Quaternion() [2/2]

Quaternion::Quaternion	(	const Vector3 &	axis,
		float	angle )

Member Function Documentation

getRotation()

void Quaternion::getRotation	(	Vector3 &	axis,
		float &	angle ) const

Note

axis is not normalized.

inverse()

Quaternion Quaternion::inverse

(

)

const

operator*()

Quaternion Quaternion::operator*

(

const Quaternion &

)

const

operator*=()

Quaternion & Quaternion::operator*=

(

const Quaternion &

)

operator+()

Quaternion Quaternion::operator+

(

const Quaternion &

)

const

operator+=()

Quaternion & Quaternion::operator+=

(

const Quaternion &

)

operator-()

Quaternion Quaternion::operator-

(

const Quaternion &

)

const

operator-=()

Quaternion & Quaternion::operator-=

(

const Quaternion &

)

rotate()

Coord3 Quaternion::rotate

(

const Coord3 &

)

const

setRotation()

void Quaternion::setRotation	(	const Vector3 &	axis,
		float	angle )

Member Data Documentation

s_

double Quaternion::s_

vec_

Vector3 Quaternion::vec_