--- trunk/OOPSE/libmdtools/RigidBody.hpp	2004/05/12 20:54:10	1174
+++ trunk/OOPSE/libmdtools/RigidBody.hpp	2004/05/22 18:16:18	1187
@@ -66,6 +66,10 @@ class RigidBody : public StuntDouble { (public)
   void lab2Body( double r[3] );
   void body2Lab( double r[3] );
 
+  double getZangle( );
+  void setZangle( double zAng );
+  void addZangle( double zAng );
+
   void calcRefCoords( void );
   void doEulerToRotMat(vec3 &euler, mat3x3 &myA );
   void calcForcesAndTorques( void );
@@ -102,6 +106,7 @@ class RigidBody : public StuntDouble { (public)
   double A[3][3];  // the rotation matrix 
   double I[3][3];  // the inertial tensor (body fixed)
   double sU[3][3]; // the standard unit vectors (body fixed)
+  double zAngle;   // the rotation about the z-axis (body fixed)
 
   bool is_linear;
   int linear_axis;