//%TITLE  Angle class implementation--copyright 2001 Information Disciplines, Inc.
//  (See Angle.hpp for detailed explanations)

#include "global.hpp"
#include "Angle.hpp"

 short  Angle::minutes() const
   {long result = long (abs(toDegrees()) * 60.0) % 60;
         return value >= 0 ? result : -result;
   }
 short  Angle::seconds() const
   {long result = long(abs(toDegrees()) * 3600.0 + 0.5) % 60;
         return value >= 0 ? result : -result;
   }


 Angle  Angle::operator- ()          const {return Angle(-value);}

 Angle& Angle::operator+=(ANGLE rs) 
                    {value+=rs.value; normalize(); return *this;}
 Angle& Angle::operator-=(ANGLE rs) 
                    {value-=rs.value; normalize(); return *this;}
 Angle& Angle::operator*=(DOUBLE rs) 
                    {value*=rs;       normalize(); return *this;}
 Angle& Angle::operator/=(DOUBLE rs) 
                    {value/=rs;       normalize(); return *this;}

 double Angle::operator/ (ANGLE  rs) const {return value / rs.value;} 


void Angle::normalize()
    {static DOUBLE twoPi = PI + PI;          
     while (value <= -PI) value += twoPi;
     while (value >   PI) value -= twoPi;
    }     

 Angle::Angle(INT deg, INT min, INT sec)   
    {double seconds = sec + 60 * (min + 60 * abs(deg));
            value = (seconds * PI / 648000.0); 
            normalize();
     }

 
 ostream&  operator<< (ostream& ls, ANGLE rs)
           {CHAR degreeSymbol = '\370';       
            return ls << (rs.toRadians() < 0 ? "-" : "")
                      << abs(rs.degrees()) << degreeSymbol
                      << abs(rs.minutes()) << '\''
                      << abs(rs.seconds()) << '\"';}