homelocationutil.cpp

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/*
 * 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 3 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, see <http://www.gnu.org/licenses/>
 */

#include "homelocationutil.h"

#include <qglobal.h>
#include <QDebug>
#include <QDateTime>

#include "coordinateconversions.h"
#include "worldmagmodel.h"

namespace Utils {

HomeLocationUtil::HomeLocationUtil()
{
}

    int HomeLocationUtil::getDetails(double LLA[3], double Be[3])
    {
        // *************
        // check input parms

        double latitude = LLA[0];
        double longitude = LLA[1];
        double altitude = LLA[2];

        if (latitude != latitude) return -1;                            // prevent nan error
        if (longitude != longitude) return -2;                          // prevent nan error
        if (altitude != altitude) return -3;                            // prevent nan error

        if (latitude < -90 || latitude > 90) return -4;         // range checking
        if (longitude < -180 || longitude > 180) return -5;     // range checking

        // *************

        QDateTime dt = QDateTime::currentDateTime().toUTC();

        //Fetch world magnetic model
        int retval = WorldMagModel().GetMagVector(LLA, dt.date().month(), dt.date().day(), dt.date().year(), Be);
        Q_ASSERT(retval >= 0);

        return retval;
    }

}