mirror of
https://bitbucket.org/librepilot/librepilot.git
synced 2025-01-21 06:52:11 +01:00
75 lines
2.6 KiB
C++
75 lines
2.6 KiB
C++
/**
|
|
******************************************************************************
|
|
*
|
|
* @file homelocationutil.cpp
|
|
* @author The OpenPilot Team, http://www.openpilot.org Copyright (C) 2010.
|
|
* @brief Utilities to find the location of openpilot GCS files:
|
|
* - Plugins Share directory path
|
|
*
|
|
* @brief Home location utility functions
|
|
*
|
|
* @see The GNU Public License (GPL) Version 3
|
|
*
|
|
*****************************************************************************/
|
|
/*
|
|
* 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, write to the Free Software Foundation, Inc.,
|
|
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
*/
|
|
|
|
#include "homelocationutil.h"
|
|
|
|
#include <stdint.h>
|
|
#include <QDateTime>
|
|
|
|
#include "worldmagmodel.h"
|
|
|
|
namespace Utils {
|
|
|
|
HomeLocationUtil::HomeLocationUtil()
|
|
{
|
|
}
|
|
|
|
/**
|
|
* @brief Get local magnetic field
|
|
* @param[in] LLA The longitude-latitude-altitude coordinate to compute the magnetic field at
|
|
* @param[out] Be The resulting magnetic field at that location and time in [mGau](?)
|
|
* @returns 0 if successful, negative otherwise.
|
|
*/
|
|
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 result = WorldMagModel().GetMagVector(LLA, dt.date().month(), dt.date().day(), dt.date().year(), Be);
|
|
Q_ASSERT(result == 0);
|
|
|
|
return result;
|
|
}
|
|
|
|
}
|