ad::Quaternion Class Reference

Stores a 3D rotation, free of gimbal lock. More...

#include <quaternion.h>

List of all members.

Public Member Functions

Quaternion ()

Initialize with no rotation.

Quaternion (const Quaternion &q)

Initialize with the rotation of another quaternion.

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

Initialize with w,x,y,z.

Quaternion (float rotX, float rotY, float rotZ)

Initialize from Euler rotations.

void Set (float w, float x, float y, float z)

Set to w,x,y,z.

Quaternion & operator= (const Quaternion &q)

Assign to the value of another quaternion.

Quaternion & operator *= (const Quaternion &q)

Rotate this quaternion by another.

Quaternion operator * (const Quaternion &q)

Return the rotation of this quaternion then another, q.

Static Public Member Functions

static Quaternion Slerp (const Quaternion &from, const Quaternion &to, float t)

Smoothly interpolates between two UNIT quaternions.

static Quaternion Lerp (const Quaternion &from, const Quaternion &to, float t)

Linearly interpolates between two UNIT quaternions.

Public Attributes

float w

float x

float y

float z

Detailed Description

Stores a 3D rotation, free of gimbal lock.

Mathematical structure that you shouldn't even try to visualize. These are good for interpolating between two rotations and applying successive rotations.

Member Function Documentation

Quaternion ad::Quaternion::Lerp ( const Quaternion & from,

const Quaternion & to,

float t

) [static]

Linearly interpolates between two UNIT quaternions.
Generate a quaternion by linearly interpolating between the poses from and to.
Parameters:

from The source from quaternion

to The source to quaternion

t In the range of 0 to 1, this value specifies how much to interpolate from the from quaternion to the to quaternion.

Quaternion ad::Quaternion::Slerp ( const Quaternion & from,

const Quaternion & to,

float t

) [static]

Smoothly interpolates between two UNIT quaternions.
Generate a quaternion by spherically-linearly interpolating between the poses from and to.
Parameters:

from The source from quaternion

to The source to quaternion

t In the range of 0 to 1, this value specifies how much to interpolate from the from quaternion to the to quaternion.

The documentation for this class was generated from the following files:

include/quaternion.h
src/quaternion.cpp