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flightgear/src/Instrumentation/vertical_speed_indicator.hxx
mfranz b9e4775a7a Roy Vegard Ovesen:
- finish cleanup/optimization of instrumentation system (started by mfranz)
- improve configuration of special properties by
  addressing them directly
2006-12-06 22:11:43 +00:00

55 lines
1.2 KiB
C++

// vertical_speed_indicator.hxx - a regular VSI tied to the static port.
// Written by David Megginson, started 2002.
//
// This file is in the Public Domain and comes with no warranty.
#ifndef __INSTRUMENTS_VERTICAL_SPEED_INDICATOR_HXX
#define __INSTRUMENTS_VERTICAL_SPEED_INDICATOR_HXX 1
#ifndef __cplusplus
# error This library requires C++
#endif
#include <simgear/props/props.hxx>
#include <simgear/structure/subsystem_mgr.hxx>
/**
* Model a non-instantaneous VSI tied to the static port.
*
* Input properties:
*
* /instrumentation/"name"/serviceable
* "static_port"/pressure-inhg
*
* Output properties:
*
* /instrumentation/"name"/indicated-speed-fpm
*/
class VerticalSpeedIndicator : public SGSubsystem
{
public:
VerticalSpeedIndicator ( SGPropertyNode *node );
virtual ~VerticalSpeedIndicator ();
virtual void init ();
virtual void update (double dt);
private:
double _internal_pressure_inhg;
string _name;
int _num;
string _static_pressure;
SGPropertyNode_ptr _serviceable_node;
SGPropertyNode_ptr _pressure_node;
SGPropertyNode_ptr _speed_node;
};
#endif // __INSTRUMENTS_VERTICAL_SPEED_INDICATOR_HXX