btQuaternion.h File Reference

#include "btVector3.h"
#include "btQuadWord.h"

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Classes
class	btQuaternion
	The btQuaternion implements quaternion to perform linear algebra rotations in combination with btMatrix3x3, btVector3 and btTransform. More...
Functions
SIMD_FORCE_INLINE btQuaternion	operator- (const btQuaternion &q)
	Return the negative of a quaternion.
SIMD_FORCE_INLINE btQuaternion	operator* (const btQuaternion &q1, const btQuaternion &q2)
	Return the product of two quaternions.
SIMD_FORCE_INLINE btQuaternion	operator* (const btQuaternion &q, const btVector3 &w)
SIMD_FORCE_INLINE btQuaternion	operator* (const btVector3 &w, const btQuaternion &q)
SIMD_FORCE_INLINE btScalar	dot (const btQuaternion &q1, const btQuaternion &q2)
	Calculate the dot product between two quaternions.
SIMD_FORCE_INLINE btScalar	length (const btQuaternion &q)
	Return the length of a quaternion.
SIMD_FORCE_INLINE btScalar	angle (const btQuaternion &q1, const btQuaternion &q2)
	Return the angle between two quaternions.
SIMD_FORCE_INLINE btQuaternion	inverse (const btQuaternion &q)
	Return the inverse of a quaternion.
SIMD_FORCE_INLINE btQuaternion	slerp (const btQuaternion &q1, const btQuaternion &q2, const btScalar &t)
	Return the result of spherical linear interpolation betwen two quaternions.
SIMD_FORCE_INLINE btVector3	quatRotate (const btQuaternion &rotation, const btVector3 &v)
SIMD_FORCE_INLINE btQuaternion	shortestArcQuat (const btVector3 &v0, const btVector3 &v1)
SIMD_FORCE_INLINE btQuaternion	shortestArcQuatNormalize2 (btVector3 &v0, btVector3 &v1)

Function Documentation

SIMD_FORCE_INLINE btScalar angle	(	const btQuaternion &	q1,
		const btQuaternion &	q2
	)

Return the angle between two quaternions.

Definition at line 371 of file btQuaternion.h.

SIMD_FORCE_INLINE btScalar dot	(	const btQuaternion &	q1,
		const btQuaternion &	q2
	)

Calculate the dot product between two quaternions.

Definition at line 356 of file btQuaternion.h.

SIMD_FORCE_INLINE btQuaternion inverse ( const btQuaternion & q )

Return the inverse of a quaternion.

Definition at line 378 of file btQuaternion.h.

SIMD_FORCE_INLINE btScalar length ( const btQuaternion & q )

Return the length of a quaternion.

Definition at line 364 of file btQuaternion.h.

SIMD_FORCE_INLINE btQuaternion operator*	(	const btVector3 &	w,
		const btQuaternion &	q
	)

Definition at line 346 of file btQuaternion.h.

SIMD_FORCE_INLINE btQuaternion operator*	(	const btQuaternion &	q,
		const btVector3 &	w
	)

Definition at line 337 of file btQuaternion.h.

SIMD_FORCE_INLINE btQuaternion operator*	(	const btQuaternion &	q1,
		const btQuaternion &	q2
	)

Return the product of two quaternions.

Definition at line 329 of file btQuaternion.h.

SIMD_FORCE_INLINE btQuaternion operator- ( const btQuaternion & q )

Return the negative of a quaternion.

Definition at line 320 of file btQuaternion.h.

SIMD_FORCE_INLINE btVector3 quatRotate	(	const btQuaternion &	rotation,
		const btVector3 &	v
	)

Definition at line 395 of file btQuaternion.h.

SIMD_FORCE_INLINE btQuaternion shortestArcQuat	(	const btVector3 &	v0,
		const btVector3 &	v1
	)

Definition at line 403 of file btQuaternion.h.

SIMD_FORCE_INLINE btQuaternion shortestArcQuatNormalize2	(	btVector3 &	v0,
		btVector3 &	v1
	)

Definition at line 422 of file btQuaternion.h.

SIMD_FORCE_INLINE btQuaternion slerp	(	const btQuaternion &	q1,
		const btQuaternion &	q2,
		const btScalar &	t
	)

Return the result of spherical linear interpolation betwen two quaternions.

Parameters:

	q1	The first quaternion
	q2	The second quaternion
	t	The ration between q1 and q2. t = 0 return q1, t=1 returns q2 Slerp assumes constant velocity between positions.

Definition at line 389 of file btQuaternion.h.