108 lines
2.8 KiB
C++
108 lines
2.8 KiB
C++
// external.hxx -- the "external" flight model (driven from other
|
|
// external input)
|
|
//
|
|
// Written by Curtis Olson, started December 1998.
|
|
//
|
|
// Copyright (C) 1998 Curtis L. Olson - curt@flightgear.org
|
|
//
|
|
// 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., 675 Mass Ave, Cambridge, MA 02139, USA.
|
|
//
|
|
// $Id$
|
|
// (Log is kept at end of this file)
|
|
|
|
|
|
#ifndef _EXTERNAL_HXX
|
|
#define _EXTERNAL_HXX
|
|
|
|
|
|
#ifndef __cplusplus
|
|
# error This library requires C++
|
|
#endif
|
|
|
|
|
|
#include <Time/fg_time.hxx>
|
|
#include <Time/timestamp.hxx>
|
|
|
|
|
|
class fgFDM_EXTERNAL {
|
|
|
|
public:
|
|
|
|
// Time Stamp
|
|
|
|
// The time at which these values are correct (for extrapolating
|
|
// later frames between position updates)
|
|
fgTIMESTAMP t;
|
|
|
|
// Positions
|
|
|
|
// placement in geodetic coordinates
|
|
double Latitude;
|
|
double Longitude;
|
|
double Altitude;
|
|
|
|
// orientation in euler angles relative to local frame (or ground
|
|
// position)
|
|
double Phi; // roll
|
|
double Theta; // pitch
|
|
double Psi; // heading
|
|
|
|
// Velocities
|
|
|
|
// velocity relative to the local aircraft's coordinate system
|
|
double V_north;
|
|
double V_east;
|
|
double V_down;
|
|
|
|
// rotational rates relative to the coordinate system the body lives in
|
|
double P_body;
|
|
double Q_body;
|
|
double R_body;
|
|
|
|
// Accelerations
|
|
|
|
// acceleration relative to the local aircraft's coordinate system
|
|
double V_dot_north;
|
|
double V_dot_east;
|
|
double V_dot_down;
|
|
|
|
// rotational acceleration relative to the coordinate system the
|
|
// body lives in
|
|
double P_dot_body;
|
|
double Q_dot_body;
|
|
double R_dot_body;
|
|
};
|
|
|
|
|
|
// reset flight params to a specific position
|
|
void fgExternalInit( FGState& f, double dt );
|
|
|
|
// update position based on inputs, positions, velocities, etc.
|
|
void fgExternalUpdate( FGState& f, int multiloop );
|
|
|
|
|
|
#endif // _EXTERNAL_HXX
|
|
|
|
|
|
// $Log$
|
|
// Revision 1.3 1998/12/05 15:54:14 curt
|
|
// Renamed class fgFLIGHT to class FGState as per request by JSB.
|
|
//
|
|
// Revision 1.2 1998/12/05 14:18:47 curt
|
|
// added an fgTIMESTAMP to define when this record is valid.
|
|
//
|
|
// Revision 1.1 1998/12/04 01:28:49 curt
|
|
// Initial revision.
|
|
//
|