Acceleration.h

Go to the documentation of this file.

/* 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 _Acceleration_h
#define _Acceleration_h

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

#include "PhysicalQuantities/Length.h"
#include "PhysicalQuantities/Time.h"

namespace Quantities {

typedef BSUtilities::Rational<1> Acceleration_LE;
typedef BSUtilities::Rational<0> Acceleration_M; 
typedef BSUtilities::Rational<-2> Acceleration_TI;
typedef BSUtilities::Rational<0> Acceleration_E;
typedef BSUtilities::Rational<0> Acceleration_TE;
typedef BSUtilities::Rational<0> Acceleration_A;
typedef BSUtilities::Rational<0> Acceleration_LU;

class AccelerationGroup
  {
    public:
      typedef TYPELIST_7(Acceleration_LE, Acceleration_M, 
                         Acceleration_TI, Acceleration_E,
                         Acceleration_TE, Acceleration_A, 
                                                 Acceleration_LU) DimTL;
  };

  namespace AccelerationUnits {

typedef Units::Unit<AccelerationGroup> AccelerationUnit;

class GalUnit;
class StandardAccelerationOfFreeFallUnit;


/* the MetrePerSquareSecond and prefixed variants */

typedef TYPELIST_3(LengthUnits::Metre, LengthUnits::CentiMetre,
                                  LengthUnits::MilliMetre) LengthList;
//typedef LengthUnits::LengthUnits LengthList;

typedef Units::CompoundElement<AccelerationGroup, LengthList, 
                               BSUtilities::Rational<1> > LengthElement;

typedef TYPELIST_3(TimeUnits::Second, TimeUnits::MilliSecond, 
                                       TimeUnits::MicroSecond) TimeList;
//typedef TimeUnits::TimeUnits TimeList;

typedef Units::CompoundElement<AccelerationGroup, TimeList, 
                                BSUtilities::Rational<-2> > TimeElement;

typedef TYPELIST_2(LengthElement, TimeElement) 
                                              AccelerationCompoundList;
typedef Units::Compound<AccelerationGroup, AccelerationCompoundList> 
                                             AccelerationCompoundUnits;

typedef Units::Composed<AccelerationCompoundUnits, 
  TYPELIST_2(LengthUnits::Metre, TimeUnits::Second)> 
                                                   MetrePerSquareSecond;
typedef Units::Composed<AccelerationCompoundUnits, 
  TYPELIST_2(LengthUnits::CentiMetre, TimeUnits::Second)> 
                                              CentiMetrePerSquareSecond;
typedef Units::Composed<AccelerationCompoundUnits, 
  TYPELIST_2(LengthUnits::Metre, TimeUnits::MilliSecond)> 
                                              MetrePerSquareMilliSecond;

/* declaration of other Acceleration units */
/* the Gal */

typedef Units::NonPrefixable<AccelerationGroup, GalUnit> Gal;

/* the acceleration of free fall */

typedef Units::NonPrefixable<AccelerationGroup, 
     StandardAccelerationOfFreeFallUnit> StandardAccelerationOfFreeFall;

typedef TYPELIST_5(MetrePerSquareSecond, CentiMetrePerSquareSecond, 
                   MetrePerSquareMilliSecond, Gal, 
                      StandardAccelerationOfFreeFall) AccelerationUnits;

  }

/* declaration of Acceleration dimension */

typedef Dimensions::Dimension<AccelerationGroup> AccelerationDimension;

/* Acceleration quantity */

typedef Quantity<AccelerationGroup, 
  AccelerationUnits::AccelerationUnits,
        AccelerationUnits::MetrePerSquareSecond> AccelerationQuantities;

typedef Variable<AccelerationQuantities> Acceleration;
typedef Constant<AccelerationQuantities> AccelerationConstant;

typedef VariableVector<AccelerationQuantities> AccelerationVector;

}

#endif /* _Acceleration_h */

---