levellingutil.h

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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/>
 *
 * Additional note on redistribution: The copyright and license notices above
 * must be maintained in each individual source file that is a derivative work
 * of this source file; otherwise redistribution is prohibited.
 */

#ifndef LEVELLINGUTIL_H
#define LEVELLINGUTIL_H

#include <QObject>
#include <QTimer>

#include "uavobjects/uavobject.h"
#include "vehicleconfigurationsource.h"

class LevellingUtil : public QObject
{
    Q_OBJECT
public:
    explicit LevellingUtil(long measurementCount, long measurementRate);
    explicit LevellingUtil(long accelMeasurementCount, long accelMeasurementRate,
                           long gyroMeasurementCount, long gyroMeasurementRate);

signals:
    void progress(long current, long total);
    void done(accelGyroBias measuredBias);
    void timeout(QString message);

public slots:
    void start();
    void abort();

private slots:
    void gyroMeasurementsUpdated(UAVObject *obj);
    void accelMeasurementsUpdated(UAVObject *obj);
    void timeout();

private:
    static const float G = 9.81f;
    static const float ACCELERATION_SCALE = 0.004f * 9.81f;

    QTimer m_timeoutTimer;

    bool m_isMeasuring;
    long m_receivedAccelUpdates;
    long m_receivedGyroUpdates;

    long m_accelMeasurementCount;
    long m_gyroMeasurementCount;
    long m_accelMeasurementRate;
    long m_gyroMeasurementRate;

    UAVObject::Metadata m_previousGyroMetaData;
    UAVObject::Metadata m_previousAccelMetaData;

    double m_accelerometerX;
    double m_accelerometerY;
    double m_accelerometerZ;
    double m_gyroX;
    double m_gyroY;
    double m_gyroZ;

    void stop();
    void startMeasurement();
    void stopMeasurement();
    accelGyroBias calculateLevellingData();
};

#endif // LEVELLINGUTIL_H