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flightgear/src/Instrumentation/turn_indicator.hxx

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Added a Gyro helper class to factor out some common code for managing a spinning gyro. Changed FGInstrumentMgr to inherit from FGSubsystemGroup, greatly simplifying the (already simple) class. I should probably rename this to FGInstrumentGroup or something similar, but not today. Added the gyroscopic turn indicator (part of the TC).
2003-01-25 19:49:27 +00:00
// turn_indicator.hxx - an electric-powered turn indicator.
// Written by David Megginson, started 2003.
//
// This file is in the Public Domain and comes with no warranty.
#ifndef __INSTRUMENTS_TURN_INDICATOR_HXX
#define __INSTRUMENTS_TURN_INDICATOR_HXX 1
#ifndef __cplusplus
# error This library requires C++
#endif
This is step "1" of probably "many" in the process of separating out the scene management code and organizing it within simgear. My strategy is to identify the code I want to move, and break it's direct flightgear dependencies. Then it will be free to move over into the simgear package. - Moved some property specific code into simgear/props/ - Split out the condition code from fgfs/src/Main/fg_props and put it in it's own source file in simgear/props/ - Created a scene subdirectory for scenery, model, and material property related code. - Moved location.[ch]xx into simgear/scene/model/ - The location and condition code had dependencies on flightgear's global state (all the globals-> stuff, the flightgear property tree, etc.) SimGear code can't depend on it so that data has to be passed as parameters to the functions/methods/constructors. - This need to pass data as function parameters had a dramatic cascading effect throughout the FlightGear code.
2003-05-06 23:46:24 +00:00
#include <simgear/props/props.hxx>
Added a Gyro helper class to factor out some common code for managing a spinning gyro. Changed FGInstrumentMgr to inherit from FGSubsystemGroup, greatly simplifying the (already simple) class. I should probably rename this to FGInstrumentGroup or something similar, but not today. Added the gyroscopic turn indicator (part of the TC).
2003-01-25 19:49:27 +00:00
#include <Main/fgfs.hxx>
#include "gyro.hxx"
/**
* Model an electric-powered turn indicator.
*
* This class does not model the slip/skid ball; that is properly
* a separate instrument.
*
* Input properties:
*
* /instrumentation/turn-indicator/serviceable
* /instrumentation/turn-indicator/spin
* /orientation/roll-rate-degps
* /orientation/yaw-rate-degps
* /systems/electrical/outputs/turn-coordinator
*
* Output properties:
*
* /instrumentation/turn-indicator/indicated-turn-rate
*/
class TurnIndicator : public FGSubsystem
{
public:
TurnIndicator ();
virtual ~TurnIndicator ();
virtual void init ();
virtual void bind ();
virtual void unbind ();
virtual void update (double dt);
private:
Gyro _gyro;
double _last_rate;
SGPropertyNode_ptr _roll_rate_node;
SGPropertyNode_ptr _yaw_rate_node;
SGPropertyNode_ptr _electric_current_node;
SGPropertyNode_ptr _rate_out_node;
};
#endif // __INSTRUMENTS_TURN_INDICATOR_HXX
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