@brief Get axis
@remarks
The axis vector is always specified in global coordinates regardless
of the setting of rel.
There are two GetAMotorAxis functions, one to return the axis and one to
return the relative mode.
For dAMotorEuler mode:
\li Only axes 0 and 2 need to be set. Axis 1 will be determined
automatically at each time step.
\li Axes 0 and 2 must be perpendicular to each other.
\li Axis 0 must be anchored to the first body, axis 2 must be anchored
to the second body.
@ingroup joints
@brief Get axis @remarks The axis vector is always specified in global coordinates regardless of the setting of rel. There are two GetAMotorAxis functions, one to return the axis and one to return the relative mode.
For dAMotorEuler mode: \li Only axes 0 and 2 need to be set. Axis 1 will be determined automatically at each time step. \li Axes 0 and 2 must be perpendicular to each other. \li Axis 0 must be anchored to the first body, axis 2 must be anchored to the second body. @ingroup joints