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flightgear/src/Instrumentation/inst_vertical_speed_indicator.hxx
mfranz 5253a271c7 The Concorde Maintainer:
- replace hardcoded name "inst-vertical-speed-indicator" by the one from
  the instrumentation config

mf: some indentation fixes, remove redundant block
2008-02-07 20:41:00 +00:00

85 lines
2.3 KiB
C++

// inst_vertical_speed_indicator.hxx -- Instantaneous VSI (emulation calibrated to standard atmosphere).
//
// Started September 2004.
//
// Copyright (C) 2004
//
// 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.
//
#ifndef __INST_VERTICAL_SPEED_INDICATOR_HXX
#define __INST_VERTICAL_SPEED_INDICATOR_HXX 1
#ifndef __cplusplus
# error This library requires C++
#endif
#include <simgear/props/props.hxx>
#include <simgear/structure/subsystem_mgr.hxx>
class SGInterpTable;
/**
* Model an instantaneous VSI tied to the external pressure.
*
* Input properties:
*
* /instrumentation/inst-vertical-speed-indicator/serviceable
* /environment/pressure-inhg
* /environment/pressure-sea-level-inhg
* /sim/speed-up
* /sim/freeze/master
*
* Output properties:
*
* /instrumentation/inst-vertical-speed-indicator/indicated-speed-fps
* /instrumentation/inst-vertical-speed-indicator/indicated-speed-fpm
*/
class InstVerticalSpeedIndicator : public SGSubsystem
{
public:
InstVerticalSpeedIndicator ( SGPropertyNode *node );
virtual ~InstVerticalSpeedIndicator ();
virtual void init ();
virtual void update (double dt);
private:
string _name;
int _num;
double _internal_pressure_inhg;
double _internal_sea_inhg;
double _speed_ft_per_s;
SGPropertyNode_ptr _serviceable_node;
SGPropertyNode_ptr _freeze_node;
SGPropertyNode_ptr _pressure_node;
SGPropertyNode_ptr _sea_node;
SGPropertyNode_ptr _speed_up_node;
SGPropertyNode_ptr _speed_node;
SGPropertyNode_ptr _speed_min_node;
SGInterpTable * _pressure_table;
SGInterpTable * _altitude_table;
};
#endif // __INST_VERTICAL_SPEED_INDICATOR_HXX