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//  file:    kbox3d.h
//  update:  11/30/02

#ifndef _KBOX3D_H
#define _KBOX3D_H

#include <cassert>
#include <cstdlib>
#include <iostream>

#include "bigrational.h"

using namespace std;

class K_BOX3D
{
friend class K_SURF;
friend class K_SOLID;
  
  bigrational low[3];
  bigrational high[3];
  
  int low_infty[3];   //  - 1 iff low[i] or high[i] is - infty
  int high_infty[3];  //    1 iff low[i] or high[i] is + infty
                      //    0 otherwise, i.e., low[i] or high[i] is bigrational
  
  //  stream
  
  ostream& output(ostream&) const;
  
  //  comparisons
public:
  int overlap(const K_BOX3D&) const;
  int contains(const K_BOX3D&) const;
  
//public:
  
  //  constructors, assignment and destructor
  
  K_BOX3D();
  K_BOX3D(const bigrational&, const bigrational&,
          const bigrational&, const bigrational&,
          const bigrational&, const bigrational&);
  K_BOX3D(const bigrational* const, const bigrational* const);
  
  K_BOX3D(const K_BOX3D&);
  K_BOX3D& operator =(const K_BOX3D&);
  
  ~K_BOX3D();
  
  //  stream
  
  friend ostream& operator <<(ostream&, const K_BOX3D&);
};

#endif