Changed reference point to middle of the rear axis.

Signed-off-by: Markus Lemmer <lemmer@fzi.de>

Author: lemmer-fzi

osi_common.proto

@@ -592,7 +592,8 @@ message StatePoint
     // Position in the global coordinate system.
     //
     // \note Remark: The definition of the reference point follows the
-    // specification of the \c BaseMoving message.
+    // specification of the \c BaseMoving message, if not specified otherwise
+    // in the message the StatePoint is used in.
     //
     optional Vector3d position = 2;
 

osi_motionrequest.proto

@@ -18,7 +18,7 @@ package osi3;
 //
 // \note The coordinate system is defined as right-handed.
 // All coordinates and orientations are relative to the global coordinate system.
-// The reference point of the vehicle is the center of the 3D bounding box of the vehicle.
+// The reference point of the vehicle is the middle of the rear axis.
 // Units are m for positions, m/s for velocities, and m/s^2 for accelerations.
 //
 message MotionRequest