87 lines
3 KiB
C++
87 lines
3 KiB
C++
/*******************************************************************************
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Header: FGAtmosphere.h
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Author: Jon Berndt
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Date started: 11/24/98
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------------- Copyright (C) 1999 Jon S. Berndt (jsb@hal-pc.org) -------------
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This program is free software; you can redistribute it and/or modify it under
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the terms of the GNU General Public License as published by the Free Software
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Foundation; either version 2 of the License, or (at your option) any later
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version.
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This program is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
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details.
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You should have received a copy of the GNU General Public License along with
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this program; if not, write to the Free Software Foundation, Inc., 59 Temple
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Place - Suite 330, Boston, MA 02111-1307, USA.
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Further information about the GNU General Public License can also be found on
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the world wide web at http://www.gnu.org.
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HISTORY
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--------------------------------------------------------------------------------
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11/24/98 JSB Created
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********************************************************************************
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SENTRY
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*******************************************************************************/
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#ifndef FGATMOSPHERE_H
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#define FGATMOSPHERE_H
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/*******************************************************************************
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INCLUDES
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*******************************************************************************/
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#include "FGModel.h"
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/*******************************************************************************
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COMMENTS, REFERENCES, and NOTES
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*******************************************************************************/
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/**
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The equation used in this model was determined by a third order curve fit using
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Excel. The data is from the ICAO atmosphere model.
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@memo Models the atmosphere.
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@author Jon S. Berndt
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*/
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/*******************************************************************************
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CLASS DECLARATION
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*******************************************************************************/
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class FGAtmosphere : public FGModel
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{
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public:
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// ***************************************************************************
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/** @memo Constructor
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@param FGFDMExec* - a pointer to the "owning" FDM Executive
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*/
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FGAtmosphere(FGFDMExec*);
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// ***************************************************************************
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/** @memo Destructor
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*/
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~FGAtmosphere(void);
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// ***************************************************************************
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/** This must be called for each dt to execute the model algorithm */
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bool Run(void);
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// ***************************************************************************
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/** @memo Returns the air density
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@return float air density in slugs/cubic foot
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*/
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inline float Getrho(void) {return rho;}
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protected:
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private:
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float rho;
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};
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/******************************************************************************/
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#endif
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