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flightgear/src/ATC/MetarPropertiesATISInformationProvider.hxx
Richard Senior 29fe6569c4 Fix incorrect QNH in spoken ATIS when using live weather fetch
When using live weather fetch, the QNH should be obtained from
environment/metar/pressure-inhg.

See: http://sourceforge.net/p/flightgear/mailman/message/35037125

Add new method getQnhInHg to ATISInformationProvider and its implementations
to avoid rounding errors converting from hPa back to inches in ATIS reports.

The CurrentWeatherATISInformationProvider (used when live weather fetch is
not in use) continues to use the property environment/pressure-sea-level-inhg.
This produces the incorrect QNH at airports significantly above sea level
but this needs fixing elsewhere to calculate the correct QNH.
2016-04-26 10:52:29 +01:00

58 lines
1.8 KiB
C++

/*
Provide Data for the ATIS Encoder from metarproperties
Copyright (C) 2014 Torsten Dreyer
This program 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.
This program 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#ifndef __METARPROPERTIES_ATIS_ENCODER_HXX
#define __METARPROPERTIES_ATIS_ENCODER_HXX
/* ATIS encoder from metarproperties */
#include <simgear/props/props.hxx>
#include <string>
#include "ATISEncoder.hxx"
class MetarPropertiesATISInformationProvider : public ATISInformationProvider
{
public:
MetarPropertiesATISInformationProvider( SGPropertyNode_ptr metar );
virtual ~MetarPropertiesATISInformationProvider();
protected:
virtual bool isValid();
virtual std::string airportId();
virtual long getTime();
virtual int getWindDeg();
virtual int getWindMinDeg();
virtual int getWindMaxDeg();
virtual int getWindSpeedKt();
virtual int getGustsKt();
virtual int getQnh();
virtual double getQnhInHg();
virtual bool isCavok();
virtual int getVisibilityMeters();
virtual std::string getPhenomena();
virtual CloudEntries getClouds();
virtual int getTemperatureDeg();
virtual int getDewpointDeg();
virtual std::string getTrend();
private:
SGPropertyNode_ptr _metar;
};
#endif