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flightgear/src/Instrumentation/heading_indicator.hxx
ehofman f614545fc5 Roy Vegard Ovesen:
Instrumentation and systems are now configureable from xml files. The two
generic configurations generic-systems.xml and generic-instrumentation.xml
configures the systems and instrumentation as it was hardcoded. You can
override the generic configurations in a similar way as you override the
autopilot configuration.
2004-10-16 12:37:39 +00:00

65 lines
1.3 KiB
C++

// heading_indicator.hxx - a vacuum-powered heading indicator.
// Written by David Megginson, started 2002.
//
// This file is in the Public Domain and comes with no warranty.
#ifndef __INSTRUMENTS_HEADING_INDICATOR_HXX
#define __INSTRUMENTS_HEADING_INDICATOR_HXX 1
#ifndef __cplusplus
# error This library requires C++
#endif
#include <simgear/props/props.hxx>
#include <simgear/structure/subsystem_mgr.hxx>
#include "gyro.hxx"
/**
* Model a vacuum-powered heading indicator.
*
* Input properties:
*
* /instrumentation/"name"/serviceable
* /instrumentation/"name"/spin
* /instrumentation/"name"/offset-deg
* /orientation/heading-deg
* "vacuum_system"/suction-inhg
*
* Output properties:
*
* /instrumentation/"name"/indicated-heading-deg
*/
class HeadingIndicator : public SGSubsystem
{
public:
HeadingIndicator ( SGPropertyNode *node );
HeadingIndicator ();
virtual ~HeadingIndicator ();
virtual void init ();
virtual void bind ();
virtual void unbind ();
virtual void update (double dt);
private:
Gyro _gyro;
double _last_heading_deg;
string name;
int num;
string vacuum_system;
SGPropertyNode_ptr _offset_node;
SGPropertyNode_ptr _heading_in_node;
SGPropertyNode_ptr _suction_node;
SGPropertyNode_ptr _heading_out_node;
};
#endif // __INSTRUMENTS_HEADING_INDICATOR_HXX