Box.hxx

   1 #ifndef BOX_HXX
   2 #define BOX_HXX
   3
   4 #include "Ray.hxx"
   5
   6 class Box
   7 {
   8 public:
   9   Box();
  10   ~Box();
  11
  12   Box(const Box& b);
  13   Box& operator=(const Box& b);
  14
  15   //! Extend the bounding box to contain point a
  16   void Extend(const Vec3f& a);
  17   //! Clear the bounding box, i.e. set dimensions to infinity.
  18   void Clear();
  19   //! Extend the box to contain the given box.
  20   void Extend(const Box& box);
  21   //! Test for overlap with the given box b.
  22   bool Overlaps(const Box& b) const;
  23   //! Clip the given ray against the box. tnear and tfar should be filled by this function!
  24   void Clip(const Ray& ray, float& tnear,float& tfar) const;
  25
  26   //! Query the dimension of the bounding box.
  27   const Vec3f& min() const;
  28   const Vec3f& max() const;
  29 private:
  30   Vec3f m_min, m_max;
  31 };
  32
  33 #endif