Parent Object: AngleValueCommandInput Defined in namespace "adsk::core" and the header file is <Core/UserInterface/AngleValueCommandInput.h>
Gets the X direction of the manipulator in the model space of the root component. The X direction is the 0 angle direction. This direction, along with the Y direction vector define the plane that the manipulator is displayed on.
To set the direction use the setManipulator method.