20 Setting Up Transformation Matrices

20 Q3Matrix4x4_SetRotateAboutPoint

You can use the Q3Matrix4x4_SetRotateAboutPoint function to configure a 4-by-4 rotation transformation matrix.

TQ3Matrix4x4 *Q3Matrix4x4_SetRotateAboutPoint (
TQ3Matrix4x4 *matrix4x4, 
const TQ3Point3D *origin, 
float xAngle, 
float yAngle, 
float zAngle);
matrix4x4 A 4-by-4 matrix.
origin The desired origin of rotation.
xAngle The desired angle of rotation around the x component of origin, in radians.
yAngle The desired angle of rotation around the y component of origin, in radians.
zAngle The desired angle of rotation around the z component of origin, in radians.

DESCRIPTION


The Q3Matrix4x4_SetRotateAboutPoint function returns, as its function result and in the matrix4x4 parameter, a rotation matrix that rotates an object by the specified angle around the point origin.

DESCRIPTION

3D Graphics Programming with QuickDraw 3D - 17 OCT 1995

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