Time.h

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/* Copyright (C) 2002-2004, Bernd Speiser */

/* This file is part of Quantities.

PhysicalQuantities is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.

PhysicalQuantities is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.
  
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
02111-1307, USA.
*/

#ifndef _Time_h
#define _Time_h

#include "Quantity/Variable.h"
#include "Quantity/Constant.h"
#include "Quantity/QuantityCluster.h"

namespace Quantities {

/* Time dimension */
typedef BSUtilities::Rational<0> Time_LE;
typedef BSUtilities::Rational<0> Time_M; 
typedef BSUtilities::Rational<1> Time_TI;
typedef BSUtilities::Rational<0> Time_E; 
typedef BSUtilities::Rational<0> Time_TE;
typedef BSUtilities::Rational<0> Time_A; 
typedef BSUtilities::Rational<0> Time_LU;
class TimeGroup
  {
    public:
      typedef TYPELIST_7(Time_LE, Time_M, Time_TI, Time_E, 
                                        Time_TE, Time_A, Time_LU) DimTL;
  };

  namespace TimeUnits {

typedef Units::Unit<TimeGroup> TimeUnit;

/* declaration of Time units */
class SecondUnits;
class MinuteUnit;
class HourUnit;
class DayUnit;
class YearUnit;
class SvedbergUnit;
class AtomicUnit;

/* the second and prefixed seconds */

typedef Units::Prefixable<TimeGroup, SecondUnits> Seconds;

typedef Units::Prefixed<Seconds> Second; 
typedef Units::Prefixed<Seconds, Units::Deci> DeciSecond;
typedef Units::Prefixed<Seconds, Units::Milli> MilliSecond;
typedef Units::Prefixed<Seconds, Units::Micro> MicroSecond;
typedef Units::Prefixed<Seconds, Units::Nano> NanoSecond;
typedef Units::Prefixed<Seconds, Units::Pico> PicoSecond;

/* the minute */

typedef Units::NonPrefixable<TimeGroup, MinuteUnit> Minute; 

/* the hour */

typedef Units::NonPrefixable<TimeGroup, HourUnit> Hour; 

/* the day */

typedef Units::NonPrefixable<TimeGroup, DayUnit> Day; 

/* the year */

typedef Units::NonPrefixable<TimeGroup, YearUnit> Year; 

/* the Svedberg */

typedef Units::NonPrefixable<TimeGroup, SvedbergUnit> Svedberg; 

/* the atomic unit of time */

typedef Units::NonPrefixable<TimeGroup, AtomicUnit> Atomic; 

typedef Loki::TL::Append<Seconds::Units, 
  TYPELIST_6(Minute, Hour, Day, Year, Svedberg, Atomic)>::Result 
                                                              TimeUnits;

/* declare some abbreviated time units */

typedef Second s;
typedef MilliSecond ms;
typedef MicroSecond mus;
typedef Minute min;

  }

/* declaration of Time dimension */

typedef Dimensions::Dimension<TimeGroup> TimeDimension;

/* Time Quantity */

typedef Quantity<TimeGroup, TimeUnits::TimeUnits, 
                                      TimeUnits::Second> TimeQuantities;

typedef Variable<TimeQuantities> Time;
typedef Variable<TimeQuantities, TimeUnits::Minute> MinuteTime;

typedef Constant<TimeQuantities> TimeConstant;

typedef VariableVector<TimeQuantities> TimeVector;
}

#endif /* _Time_h */

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