106 lines
3.9 KiB
C
106 lines
3.9 KiB
C
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/*****************************************************************************
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Header: FGVaporPressureItem.h
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Author: Christian Mayer
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Date started: 28.05.99
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---------- Copyright (C) 1999 Christian Mayer (vader@t-online.de) ----------
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This program is free software; you can redistribute it and/or modify it under
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the terms of the GNU General Public License as published by the Free Software
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Foundation; either version 2 of the License, or (at your option) any later
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version.
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This program is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
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details.
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You should have received a copy of the GNU General Public License along with
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this program; if not, write to the Free Software Foundation, Inc., 59 Temple
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Place - Suite 330, Boston, MA 02111-1307, USA.
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Further information about the GNU General Public License can also be found on
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the world wide web at http://www.gnu.org.
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FUNCTIONAL DESCRIPTION
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------------------------------------------------------------------------------
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Vapor pressure item that is stored in the micro weather class
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HISTORY
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------------------------------------------------------------------------------
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28.05.1999 Christian Mayer Created
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16.06.1999 Durk Talsma Portability for Linux
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20.06.1999 Christian Mayer added lots of consts
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*****************************************************************************/
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/****************************************************************************/
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/* SENTRY */
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/****************************************************************************/
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#ifndef FGVaporPressureItem_H
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#define FGVaporPressureItem_H
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/****************************************************************************/
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/* INCLUDES */
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/****************************************************************************/
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#include "FGWeatherDefs.h"
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/****************************************************************************/
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/* DEFINES */
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/****************************************************************************/
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class FGVaporPressureItem;
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FGVaporPressureItem operator-(const FGVaporPressureItem& arg);
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/****************************************************************************/
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/* CLASS DECLARATION */
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/****************************************************************************/
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class FGVaporPressureItem
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{
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private:
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WeatherPrecition value;
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WeatherPrecition alt;
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protected:
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public:
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FGVaporPressureItem(const WeatherPrecition& a, const WeatherPrecition& v) {alt = a; value = v;}
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FGVaporPressureItem(const WeatherPrecition& v) {alt = 0.0; value = v;}
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FGVaporPressureItem() {alt = 0.0; value = FG_WEATHER_DEFAULT_VAPORPRESSURE;}
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WeatherPrecition getValue() const { return value; };
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WeatherPrecition getAlt() const { return alt; };
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FGVaporPressureItem& operator*= (const WeatherPrecition& arg);
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FGVaporPressureItem& operator+= (const FGVaporPressureItem& arg);
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FGVaporPressureItem& operator-= (const FGVaporPressureItem& arg);
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friend bool operator<(const FGVaporPressureItem& arg1, const FGVaporPressureItem& arg2 );
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friend FGVaporPressureItem operator-(const FGVaporPressureItem& arg);
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};
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inline FGVaporPressureItem& FGVaporPressureItem::operator*= (const WeatherPrecition& arg)
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{
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value *= arg;
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return *this;
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}
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inline FGVaporPressureItem& FGVaporPressureItem::operator+= (const FGVaporPressureItem& arg)
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{
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value += arg.value;
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return *this;
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}
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inline FGVaporPressureItem& FGVaporPressureItem::operator-= (const FGVaporPressureItem& arg)
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{
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value -= arg.value;
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return *this;
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}
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inline FGVaporPressureItem operator-(const FGVaporPressureItem& arg)
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{
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return FGVaporPressureItem(arg.alt, -arg.value);
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}
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/****************************************************************************/
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#endif /*FGVaporPressureItem_H*/
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