Camera System and VRPN
Calibrating The Cameras
Setting the Ground Plane
Tracking Tools Software
Angular Display
The Tracking Tools software includes a display of the trackable's current position (X,Y,Z and attitude). The X, Y, Z values displayed are relative to the camera system's coordinate axis. The attitude displayed is in Euler Angles relative to the camera's coordinate system (its inertial frame). The sequence of Euler angles it uses to convert into these angles is not the Yaw-Pitch-Roll (Aerospace) sequence.
Resetting Orientation
The camera system Tracking Tools software includes a feature to "Reset Orientation" of the currently selected trackable. This feature will only bias the angular position (basically subtract off the current values from the calculated angles), and will not rotate the coordinate system of the trackable to match the new orientation. This feature cannot be used to modify the coordinate system.