IbuMethods.h

/*
 * IbuMethods.h is part of Brewtarget, and is Copyright the following
 * authors 2009-2014
 * - Philip Greggory Lee <rocketman768@gmail.com>
 *
 * Brewtarget 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 3 of the License, or
 * (at your option) any later version.
 *
 * Brewtarget 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, see <http://www.gnu.org/licenses/>.
 */

#ifndef _IBUMETHODS_H
#define _IBUMETHODS_H

/*!
 * \class IbuMethods
 * \author Philip G. Lee
 *
 * \brief Make IBU calculations.
 */
class IbuMethods
{
public:
   IbuMethods();
   ~IbuMethods();

   /*!
    * \return ibus according to selected algorithm.
    * \param AArating in [0,1] (0.04 means 4% AA for example)
    * \param hops_grams - mass of hops in grams
    * \param finalVolume_liters - self explanatory
    * \param wort_grav in specific gravity at around 60F I guess.
    * \param minutes - minutes that the hops are in the boil
    */
   static double getIbus(double AArating, double hops_grams, double finalVolume_liters, double wort_grav, double minutes);
private:
   static double tinseth(double AArating, double hops_grams, double finalVolume_liters, double wort_grav, double minutes);
   static double rager(double AArating, double hops_grams, double finalVolume_liters, double wort_grav, double minutes);

   /*!
    * \author Daniel Pettersson (pettson81@gmail.com)
    *
    * \brief Calculates the IBU by Greg Noonans formula
    */
   static double noonan(double AARating, double hops_grams, double finalVolume_liters, double wort_grav, double minutes);
};

#endif