29fe6569c4
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.
130 lines
3.5 KiB
C++
130 lines
3.5 KiB
C++
/*
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Provide Data for the ATIS Encoder from metarproperties
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Copyright (C) 2014 Torsten Dreyer
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#include "MetarPropertiesATISInformationProvider.hxx"
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#include <Main/globals.hxx>
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#include <simgear/constants.h>
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using std::string;
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MetarPropertiesATISInformationProvider::MetarPropertiesATISInformationProvider( SGPropertyNode_ptr metar ) :
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_metar( metar )
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{
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}
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MetarPropertiesATISInformationProvider::~MetarPropertiesATISInformationProvider()
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{
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}
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bool MetarPropertiesATISInformationProvider::isValid()
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{
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return _metar->getBoolValue( "valid", false );
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}
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string MetarPropertiesATISInformationProvider::airportId()
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{
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return _metar->getStringValue( "station-id", "xxxx" );
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}
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long MetarPropertiesATISInformationProvider::getTime()
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{
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return makeAtisTime( 0,
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_metar->getIntValue( "hour" ) % 24,
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_metar->getIntValue( "minute" ) % 60 );
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}
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int MetarPropertiesATISInformationProvider::getWindDeg()
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{
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return _metar->getIntValue( "base-wind-dir-deg" );
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}
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int MetarPropertiesATISInformationProvider::getWindMinDeg()
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{
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return _metar->getIntValue( "base-wind-range-from" );
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}
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int MetarPropertiesATISInformationProvider::getWindMaxDeg()
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{
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return _metar->getIntValue( "base-wind-range-to" );
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}
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int MetarPropertiesATISInformationProvider::getWindSpeedKt()
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{
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return _metar->getIntValue( "base-wind-speed-kt" );
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}
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int MetarPropertiesATISInformationProvider::getGustsKt()
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{
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return _metar->getIntValue( "gust-wind-speed-kt" );
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}
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int MetarPropertiesATISInformationProvider::getQnh()
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{
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return _metar->getDoubleValue("pressure-inhg") * SG_INHG_TO_PA / 100.0;
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}
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double MetarPropertiesATISInformationProvider::getQnhInHg()
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{
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return _metar->getDoubleValue("pressure-inhg");
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}
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bool MetarPropertiesATISInformationProvider::isCavok()
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{
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return _metar->getBoolValue( "cavok" );
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}
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int MetarPropertiesATISInformationProvider::getVisibilityMeters()
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{
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return _metar->getIntValue( "min-visibility-m" );
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}
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string MetarPropertiesATISInformationProvider::getPhenomena()
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{
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return _metar->getStringValue( "decoded" );
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}
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ATISInformationProvider::CloudEntries MetarPropertiesATISInformationProvider::getClouds()
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{
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CloudEntries reply;
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using simgear::PropertyList;
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PropertyList layers = _metar->getNode("clouds", true )->getChildren("layer");
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for( PropertyList::iterator it = layers.begin(); it != layers.end(); ++it ) {
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const char * coverage = (*it)->getStringValue("coverage","clear");
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double elevation = (*it)->getDoubleValue("elevation-ft", -9999 );
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if( elevation > 0 ) {
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reply[elevation] = coverage;
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}
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}
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return reply;
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}
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int MetarPropertiesATISInformationProvider::getTemperatureDeg()
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{
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return _metar->getIntValue( "temperature-degc" );
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}
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int MetarPropertiesATISInformationProvider::getDewpointDeg()
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{
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return _metar->getIntValue( "dewpoint-degc" );
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}
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string MetarPropertiesATISInformationProvider::getTrend()
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{
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return "nosig";
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}
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