WindTilter.h

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// -*- mode: C++; indent-tabs-mode: nil; c-basic-offset: 4; tab-width: 4; -*-
// vim: set shiftwidth=4 softtabstop=4 expandtab:
/*
 ********************************************************************
 ** NIDAS: NCAR In-situ Data Acquistion Software
 **
 ** 2006, Copyright University Corporation for Atmospheric Research
 **
 ** 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.
 **
 ** The LICENSE.txt file accompanying this software contains
 ** a copy of the GNU General Public License. If it is not found,
 ** write to the Free Software Foundation, Inc.,
 ** 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 **
 ********************************************************************
*/

#ifndef NIDAS_DNYLD_ISFF_WINDTILTER_H
#define NIDAS_DNYLD_ISFF_WINDTILTER_H

#include <math.h>  // for M_PI

namespace nidas { namespace dynld { namespace isff {

class WindTilter {
public:

    WindTilter();

    double getLeanDegrees() const
    {
        return _lean * 180.0 / M_PI;
    }

    void setLeanDegrees(double val)
    {
        _lean = val * M_PI / 180.0;
        computeMatrix();
    }

    double getLeanAzimuthDegrees() const
    {
        return _leanaz * 180.0 / M_PI;
    }

    void setLeanAzimuthDegrees(double val)
    {
        _leanaz = val * M_PI / 180.;
        if (!_identity) computeMatrix();
    }

    bool isIdentity() const
    {
        return _identity;
    }

    void rotate(float*u, float*v, float*w) const;

private:

    void computeMatrix();

    double _lean;

    double _leanaz;

    bool _identity;

    double _mat[3][3];

    bool UP_IS_SONIC_W;
};


}}} // namespace nidas namespace dynld namespace isff

#endif