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

Chapter 7 - Transform Objects / Transform Objects Reference

Transform Objects Routines / Creating and Manipulating Rotate-About-Axis Transforms

Q3RotateAboutAxisTransform_GetOrientation

You can use the Q3RotateAboutAxisTransform_GetOrientation function to get the orientation of the axis of rotation of a rotate-about-axis transform.

TQ3Status Q3RotateAboutAxisTransform_GetOrientation (
TQ3TransformObject transform, 
TQ3Vector3D *axis);

transform

A rotate-about-axis transform.

axis

On exit, the orientation of the axis of the specified rotate-about-axis transform. This vector is normalized.

DESCRIPTION

The Q3RotateAboutAxisTransform_GetOrientation function returns, in the axis parameter, the current orientation of the axis of rotation of the rotate-about-axis transform specified by the transform parameter.