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https://github.com/swift-project/pilotclient.git
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da8ba9aac3
* Default unit is more clearly stated in one place, not restated in many different places, and is not always the SI unit * Converter strategy pattern in CMeasurementUnit, covering linear, affine, and different kinds of sexagesimal units * General reorganization of CMeasurementUnit construction and CPhysicalQuantity methods, not removing any behvaiour * Move duplicated method unitFromSymbol from derived classes into base class CMeasurementUnit * For DBus, CPhysicalQuantity marshals both in its own unit and in the default unit
118 lines
2.7 KiB
C++
118 lines
2.7 KiB
C++
/* Copyright (C) 2013 VATSIM Community / contributors
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef BLACKMISC_PQCONSTANTS_H
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#define BLACKMISC_PQCONSTANTS_H
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#include "blackmisc/pqallquantities.h"
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namespace BlackMisc
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{
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namespace PhysicalQuantities
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{
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/*!
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* \brief Physical quantities constants
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*/
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class CPhysicalQuantitiesConstants
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{
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public:
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/*!
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* \brief Tripe point of purified water, 0.01°C
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* \return
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*/
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static const CTemperature& TemperatureTriplePointOfVSMOW()
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{
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static CTemperature t(-273.16, CTemperatureUnit::K());
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return t;
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}
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/*!
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* \brief Temperature absolute Zero in °C
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* \return
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*/
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static const CTemperature& TemperatureAbsoluteZeroC()
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{
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static CTemperature t(-273.15, CTemperatureUnit::C());
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return t;
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}
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/*!
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* \brief International Standard Atmosphere pressure at mean sea level, 1013.25hPa
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* \return
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*/
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static const CPressure& ISASeaLevelPressure()
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{
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static CPressure p(1013.25, CPressureUnit::hPa());
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return p;
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}
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/*!
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* \brief ICAO standard pressure datum for flight levels, 1013.2hPa
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* \return
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*/
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static const CPressure& ICAOFlightLevelPressure()
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{
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static CPressure p(1013.2, CPressureUnit::hPa());
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return p;
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}
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/*!
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* \brief Standard pressure datum for flight levels in USA, Canada, parts of Latin America, 29.92inHg
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* \return
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*/
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static const CPressure& USFlightLevelPressure()
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{
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static CPressure p(29.92, CPressureUnit::inHg());
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return p;
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}
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/*!
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* \brief Standard pressure datum for flight levels expressed in mmHg, such as in Russia, 760mmHg
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* \return
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*/
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static const CPressure& RuFlightLevelPressure()
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{
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static CPressure p(760, CPressureUnit::mmHg());
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return p;
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}
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/*!
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* \brief Unicom frequency
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* \return
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*/
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static const CFrequency& FrequencyUnicom()
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{
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static CFrequency f(122.8, CFrequencyUnit::MHz());
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return f;
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}
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/*!
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* \brief Civil aircraft emergency frequency
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* \return
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*/
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static const CFrequency& FrequencyInternationalAirDistress()
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{
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static CFrequency f(121.5, CFrequencyUnit::MHz());
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return f;
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}
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/*!
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* \brief Military aircraft emergency frequency
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* \return
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*/
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static const CFrequency& FrequencyMilitaryAirDistress()
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{
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static CFrequency f(243.0, CFrequencyUnit::MHz());
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return f;
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}
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};
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} // namespace
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} // namespace
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#endif // guard
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