util.hxx

Go to the documentation of this file.

// util.hxx - general-purpose utility functions.
// Copyright (C) 2002  Curtis L. Olson  - http://www.flightgear.org/~curt
//
// 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.
//
// 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., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
//
// $Id$
 
#ifndef __UTIL_HXX
#define __UTIL_HXX 1
 
#include <string>
#include <simgear/misc/sg_path.hxx>

double fgGetLowPass (double current, double target, double timeratio);
 

void fgInitAllowedPaths();
 
namespace flightgear
{
    std::string getAircraftAuthorsText();

    double lowPassPeriodicDegreesSigned(double current, double target, double timeratio);

    double lowPassPeriodicDegreesPositive(double current, double target, double timeratio);

    double filterExponential(double current, double target, double timeratio);
}
 
#endif // __UTIL_HXX