From: Peter Vanroose <Peter.Vanroose@es...>  20031205 08:49:41

> I noticed that vnl_quaternion has a method called rotation_matrix that > purportedly returns a 3x3 rotation matrix equivalent to the given > quaternion. Which version of vnl are you referring to? On June 26, 2002, rotation_matrix() was renamed to rotation_matrix_transpose(), and the deprecated rotation_matrix() was removed on January 16, 2003. [Similarly, rotation_matrix_4() was (in October 2002) renamed to rotation_matrix_transpose_4().]  Peter. 