rLine2D.h

#ifndef rLine2Dhh
#define rLine2Dhh
//#include <stdlib.h>
#include <ostream>
#include <iostream>

class rLine2D;
class Poly2D;


/*
 * Class declarations
 */

class rLine2D {
  friend std::ostream&
    operator<<(std::ostream&, rLine2D&); /* used with cout */
  protected:
  public:
    double m; // slope an intercept are stored to form the rLine.
    double b;
    rLine2D () {};
    rLine2D (rPoint2D,rPoint2D); // Two rPoints make a rLine.
    rLine2D (double, double); // Slope and intercept make a rLine.
    rLine2D (double, double, double, double); // Two rPoints again.
    ~rLine2D () {};
    rLine2D& operator=(rLine2D );
    int operator==(rLine2D );
    void set (rPoint2D, rPoint2D);
    double x (double);
    double y (double);
    int operator > (rPoint2D p) { return p.y < m*p.x + b; }
    int operator < (rPoint2D p) { return p.y > m*p.x + b; }
    int operator >= (rPoint2D p) { return p.y <= m*p.x + b; }
    int operator <= (rPoint2D p) { return p.y >= m*p.x + b; }
    int operator == (rPoint2D p) { return p.y == m*p.x + b; }
    int operator != (rPoint2D p) { return p.y != m*p.x + b; }
/*
    friend int operator < (rPoint2D p, rLine2D l) { return p.y < l.m*p.x + l.b; }
    friend int operator > (rPoint2D p, rLine2D l) { return p.y > l.m*p.x + l.b; }
    friend int operator <= (rPoint2D p, rLine2D l) { return p.y <= l.m*p.x + l.b; }
    friend int operator >= (rPoint2D p, rLine2D l) { return p.y >= l.m*p.x + l.b; }
    friend int operator == (rPoint2D p, rLine2D l) { return p.y == l.m*p.x + l.b; }
    friend int operator != (rPoint2D p, rLine2D l) { return p.y != l.m*p.x + l.b; }
*/
    int sameside (rPoint2D,rPoint2D);
   // friend Poly2D;
};
#endif