text: #ifndef FANLENSMOVEMENT_H
  
  #define FANLENSMOVEMENT_H
  
  #include <fanVector.h>
  
  namespace fan {
  
  class fanLens;
  
  void Yaw( float radian, fan::fanLens& lens );
  void Pitch( float radian, fan::fanLens& lens );
  void Roll( float radian, fan::fanLens& lens );
  
  void YawAroundFocus( float radian, fan::fanLens& lens );
  void PitchAroundFocus( float radian, fan::fanLens& lens );
  void RollAroundFocus( float radian, fan::fanLens& lens );
  
  void Translate( const fan::fanVector<float, 3>& pos, fan::fanLens& lens );
  
  } /* namespace fan */
  
  #endif /* end of include guard: FANLENSMOVEMENT_H */
  