Inside Macintosh: 3D Graphics Programming With QuickDraw 3D /

Chapter 20 - QuickDraw 3D Mathematical Utilities / QuickDraw 3D Mathematical Utilities Reference

QuickDraw 3D Mathematical Utilities / Managing Quaternions

Q3Quaternion_SetMatrix

You can use the Q3Quaternion_SetMatrix function to configure a quaternion from a matrix.

TQ3Quaternion *Q3Quaternion_SetMatrix (
TQ3Quaternion *quaternion, 
const TQ3Matrix4x4 *matrix);

quaternion

A quaternion.

matrix

A 4-by-by matrix.

DESCRIPTION

The Q3Quaternion_SetMatrix function returns, as its function result and in the quaternion parameter, a quaternion that has the same transformational properties as the matrix specified by the matrix parameter.