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flightgear/src/FDM/JSBSim/input_output/FGGroundCallback.h

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/*%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
Header: FGGroundCallback.h
Author: Mathias Froehlich
Date started: 05/21/04
------ Copyright (C) 2004 Mathias Froehlich (Mathias.Froehlich@web.de) -------
This program is free software; you can redistribute it and/or modify it under
the terms of the GNU Lesser 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 Lesser General Public License for more
details.
You should have received a copy of the GNU Lesser 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.
Further information about the GNU Lesser General Public License can also be found on
the world wide web at http://www.gnu.org.
HISTORY
-------------------------------------------------------------------------------
05/21/00 MF Created
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
SENTRY
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%*/
#ifndef FGGROUNDCALLBACK_H
#define FGGROUNDCALLBACK_H
/*%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
INCLUDES
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%*/
#include "math/FGColumnVector3.h"
#include "math/FGLocation.h"
/*%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
DEFINITIONS
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%*/
#define ID_GROUNDCALLBACK "$Id: FGGroundCallback.h,v 1.9 2010/10/07 03:45:40 jberndt Exp $"
namespace JSBSim {
/*%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
CLASS DOCUMENTATION
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%*/
/** This class provides callback slots to get ground specific data like
ground elevation and such.
There is a default implementation, which returns values for a
ball formed earth.
@author Mathias Froehlich
@version $Id: FGGroundCallback.h,v 1.9 2010/10/07 03:45:40 jberndt Exp $
*/
/*%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
CLASS DECLARATION
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%*/
class FGGroundCallback : public FGJSBBase
{
public:
/** Default constructor.
Within this constructor, the reference radius is set to the WGS84 equatorial
radius. This constructor should really not be called, instead relying on the
constructor that takes reference radius as an argument. */
FGGroundCallback();
/** Constructor
This constructor accepts the reference radius in feet. This is the preferred
constructor. */
FGGroundCallback(double ReferenceRadius);
virtual ~FGGroundCallback();
/** Compute the altitude above sealevel. */
virtual double GetAltitude(const FGLocation& l) const;
/** Compute the altitude above ground. Defaults to sealevel altitude. */
virtual double GetAGLevel(double t, const FGLocation& l, FGLocation& cont,
FGColumnVector3& n, FGColumnVector3& v,
FGColumnVector3& w) const;
virtual void SetTerrainGeoCentRadius(double radius) {mReferenceRadius = radius;}
virtual double GetTerrainGeoCentRadius(void) const {return mReferenceRadius;}
private:
/// Reference radius.
double mReferenceRadius;
};
}
//%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
#endif