text: /* ========================================================================= *
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  /*===========================================================================*\
   *                                                                           *
   *   $Revision$                                                         *
   *   $Date$                   *
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  \*===========================================================================*/
  
  
  
  
  //=============================================================================
  //
  //  CLASS NormalCone
  //
  //=============================================================================
  
  
  #ifndef OPENMESH_NORMALCONE_HH
  #define OPENMESH_NORMALCONE_HH
  
  
  //== INCLUDES =================================================================
  
  
  #include <OpenMesh/Core/Geometry/VectorT.hh>
  
  
  //== NAMESPACES ===============================================================
  
  
  namespace OpenMesh {
  
  
  //== CLASS DEFINITION =========================================================
  
  
  /** /class NormalCone NormalCone.hh <ACG/Geometry/Types/NormalCone.hh>
  
      NormalCone that can be merged with other normal cones. Provides
      the center normal and the opening angle.
  **/
  
  template <typename Scalar>
  class NormalConeT
  {
  public:
  
    // typedefs
    typedef VectorT<Scalar, 3>  Vec3;
  
  
    //! default constructor (not initialized)
    NormalConeT() {}
  
    //! Initialize cone with center (unit vector) and angle (radius in radians)
    NormalConeT(const Vec3& _center_normal, Scalar _angle=0.0);
  
    //! return max. distance (radians) unit vector to cone (distant side)
    Scalar max_angle(const Vec3&) const;
  
    //! return max. distance (radians) cone to cone (distant sides)
    Scalar max_angle(const NormalConeT&) const;
  
    //! merge _cone; this instance will then enclose both former cones
    void merge(const NormalConeT&);
  
    //! returns center normal
    const Vec3& center_normal() const { return center_normal_; }
  
    //! returns size of cone (radius in radians)
    inline Scalar angle() const { return angle_; }
  
  private:
  
    Vec3    center_normal_;
    Scalar  angle_;
  };
  
  
  //=============================================================================
  } // namespace OpenMesh
  //=============================================================================
  #if defined(OM_INCLUDE_TEMPLATES) && !defined(OPENMESH_NORMALCONE_C)
  #define OPENMESH_NORMALCONE_TEMPLATES
  #include "NormalConeT.cc"
  #endif
  //=============================================================================
  #endif // OPENMESH_NORMALCONE_HH defined
  //=============================================================================
  
  