ElectricCurrent.h

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/* Copyright (C) 2002 - 2009, 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 _ElectricCurrent_h
#define _ElectricCurrent_h

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

namespace quantity {
  namespace electricCurrent {

class Class;

class Unit;

/* declaration of ElectricCurrent units */
class AmpereUnits;
class GauUnit;
class BiotUnit;
class AtomicUnit;

typedef unit::Prefixable<Unit, AmpereUnits> Amperes;

typedef unit::Prefixed<Amperes> Ampere;

typedef unit::Prefixed<Amperes, unit::Milli> MilliAmpere;

typedef unit::Prefixed<Amperes, unit::Micro> MicroAmpere;

typedef unit::NonPrefixable<Unit, GauUnit> Gau;

typedef unit::NonPrefixable<Unit, BiotUnit> Biot;

typedef unit::NonPrefixable<Unit, AtomicUnit> Atomic;

typedef Loki::TL::Append<Amperes::Units, 
                      LOKI_TYPELIST_3(Gau, Biot, Atomic)>::Result Units;

/* ElectricCurrent quantity */

typedef Quantity<Class> Quantity;

class DerivedElectricCurrent;

  } // end namespae electricCurrent


  template<typename ST>
    struct Standard<electricCurrent::Amperes, ST>
    {
      static const ST ratio;
      static const bool exact;
    };

template<typename ST> const ST Standard<electricCurrent::Amperes, ST>::ratio = 1.0;

template<typename ST> const bool Standard<electricCurrent::Amperes, ST>::exact = true;


  template<typename ST>
    struct Standard<electricCurrent::Gau, ST>
    {
      static const ST ratio;
      static const bool exact;
    };

template<typename ST> const ST Standard<electricCurrent::Gau, ST>::ratio = 3.33564e-10;

template<typename ST> const bool Standard<electricCurrent::Gau, ST>::exact = false;


  template<typename ST>
    struct Standard<electricCurrent::Biot, ST>
    {
      static const ST ratio;
      static const bool exact;
    };

template<typename ST> const ST Standard<electricCurrent::Biot, ST>::ratio = 10.0;

template<typename ST> const bool Standard<electricCurrent::Biot, ST>::exact = true;


  template<typename ST>
    struct Standard<electricCurrent::Atomic, ST>
    {
      static const ST ratio;
      static const bool exact;
    };

template<typename ST> const ST Standard<electricCurrent::Atomic, ST>::ratio = 6.62362e-3;

template<typename ST> const bool Standard<electricCurrent::Atomic, ST>::exact = false;

template<>
  struct QuantityTraits<electricCurrent::Class>
  {
    typedef
      dimension::Dimension<BSUtilities::Rational<0>,
        BSUtilities::Rational<0>, BSUtilities::Rational<0>,
          BSUtilities::Rational<1>, BSUtilities::Rational<0>,
            BSUtilities::Rational<0>, BSUtilities::Rational<0> > Dimension;
    typedef electricCurrent::Unit UnitType;
    typedef electricCurrent::Units UnitList;
    typedef electricCurrent::Ampere DefaultUnit;

    typedef electricCurrent::DerivedElectricCurrent DefaultDerivedQuantityType;

    static const std::string NameString;
    static const std::string SymbolString;

  };

// the derived quantity traits template for Ampere ElectricCurrent 
template<>
  struct DerivedQuantityTraits<electricCurrent::Class, electricCurrent::DerivedElectricCurrent>
  {
    static const bool OverwriteName = false;
    static const bool OverwriteSymbol = false;

    static const std::string NameString;
    static const std::string SymbolString;

  };

typedef Variable<electricCurrent::Quantity> ElectricCurrent;

typedef Constant<electricCurrent::Quantity> ElectricCurrentConstant;

typedef QuantityVector<Variable, electricCurrent::Quantity> 
                                                  ElectricCurrentVector;

}

#endif /* _ElectricCurrent_h */

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