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flightgear/src/Instrumentation/attitude_indicator.hxx

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// attitude_indicator.hxx - a vacuum-powered attitude indicator.
// Written by David Megginson, started 2002.
//
// This file is in the Public Domain and comes with no warranty.
#ifndef __INSTRUMENTS_ATTITUDE_INDICATOR_HXX
#define __INSTRUMENTS_ATTITUDE_INDICATOR_HXX 1
#ifndef __cplusplus
# error This library requires C++
#endif
#include <simgear/misc/props.hxx>
#include <Main/fgfs.hxx>
#include "gyro.hxx"
/**
* Model a vacuum-powered attitude indicator.
*
* This first, simple draft is hard-wired to vacuum pump #1.
*
* Input properties:
*
* /instrumentation/attitude-indicator/config/tumble-flag
* /instrumentation/attitude-indicator/serviceable
* /instrumentation/attitude-indicator/caged-flag
* /instrumentation/attitude-indicator/tumble-norm
* /orientation/pitch-deg
* /orientation/roll-deg
* /systems/vacuum[0]/suction-inhg
*
* Output properties:
*
* /instrumentation/attitude-indicator/indicated-pitch-deg
* /instrumentation/attitude-indicator/indicated-roll-deg
* /instrumentation/attitude-indicator/tumble-norm
*/
class AttitudeIndicator : public FGSubsystem
{
public:
AttitudeIndicator ();
virtual ~AttitudeIndicator ();
virtual void init ();
virtual void bind ();
virtual void unbind ();
virtual void update (double dt);
private:
Gyro _gyro;
SGPropertyNode_ptr _tumble_flag_node;
SGPropertyNode_ptr _caged_node;
SGPropertyNode_ptr _tumble_node;
SGPropertyNode_ptr _pitch_in_node;
SGPropertyNode_ptr _roll_in_node;
SGPropertyNode_ptr _suction_node;
SGPropertyNode_ptr _pitch_int_node;
SGPropertyNode_ptr _roll_int_node;
SGPropertyNode_ptr _pitch_out_node;
SGPropertyNode_ptr _roll_out_node;
};
#endif // __INSTRUMENTS_ATTITUDE_INDICATOR_HXX