71 lines
1.5 KiB
C++
71 lines
1.5 KiB
C++
// heading_indicator.hxx - a vacuum-powered heading indicator.
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// Written by David Megginson, started 2002.
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//
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// This file is in the Public Domain and comes with no warranty.
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#ifndef __INSTRUMENTS_HEADING_INDICATOR_FG_HXX
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#define __INSTRUMENTS_HEADING_INDICATOR_FG_HXX 1
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#ifndef __cplusplus
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# error This library requires C++
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#endif
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#include <simgear/props/props.hxx>
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#include <simgear/structure/subsystem_mgr.hxx>
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#include "gyro.hxx"
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/**
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* Model an electically-powered fluxgate compass
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*
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* Input properties:
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*
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* /instrumentation/"name"/serviceable
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* /instrumentation/"name"/spin
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* /instrumentation/"name"/offset-deg
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* /orientation/heading-deg
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* /systems/electrical/outputs/DG
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*
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* Output properties:
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*
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* /instrumentation/"name"/indicated-heading-deg
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*/
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class HeadingIndicatorFG : public SGSubsystem
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{
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public:
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HeadingIndicatorFG ( SGPropertyNode *node );
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HeadingIndicatorFG ();
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virtual ~HeadingIndicatorFG ();
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virtual void init ();
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virtual void reinit ();
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virtual void bind ();
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virtual void unbind ();
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virtual void update (double dt);
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private:
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Gyro _gyro;
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double _last_heading_deg;
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std::string name;
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int num;
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SGPropertyNode_ptr _offset_node;
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SGPropertyNode_ptr _heading_in_node;
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SGPropertyNode_ptr _serviceable_node;
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SGPropertyNode_ptr _heading_out_node;
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SGPropertyNode_ptr _electrical_node;
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SGPropertyNode_ptr _error_node;
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SGPropertyNode_ptr _nav1_error_node;
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SGPropertyNode_ptr _off_node;
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};
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#endif // __INSTRUMENTS_HEADING_INDICATOR_HXX
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