src/Instrumentation/attitude_indicator.hxx

   1 // attitude_indicator.hxx - a vacuum-powered attitude indicator.
   2 // Written by David Megginson, started 2002.
   3 //
   4 // This file is in the Public Domain and comes with no warranty.
   5
   6
   7 #ifndef __INSTRUMENTS_ATTITUDE_INDICATOR_HXX
   8 #define __INSTRUMENTS_ATTITUDE_INDICATOR_HXX 1
   9
  10 #ifndef __cplusplus
  11 # error This library requires C++
  12 #endif
  13
  14 #include <simgear/props/props.hxx>
  15
  16 #include <Main/fgfs.hxx>
  17
  18 #include "gyro.hxx"
  19
  20
  21 /**
  22  * Model a vacuum-powered attitude indicator.
  23  *
  24  * This first, simple draft is hard-wired to vacuum pump #1.
  25  *
  26  * Input properties:
  27  *
  28  * /instrumentation/attitude-indicator/config/tumble-flag
  29  * /instrumentation/attitude-indicator/serviceable
  30  * /instrumentation/attitude-indicator/caged-flag
  31  * /instrumentation/attitude-indicator/tumble-norm
  32  * /orientation/pitch-deg
  33  * /orientation/roll-deg
  34  * /systems/vacuum[0]/suction-inhg
  35  *
  36  * Output properties:
  37  *
  38  * /instrumentation/attitude-indicator/indicated-pitch-deg
  39  * /instrumentation/attitude-indicator/indicated-roll-deg
  40  * /instrumentation/attitude-indicator/tumble-norm
  41  */
  42 class AttitudeIndicator : public FGSubsystem
  43 {
  44
  45 public:
  46
  47     AttitudeIndicator ();
  48     virtual ~AttitudeIndicator ();
  49
  50     virtual void init ();
  51     virtual void bind ();
  52     virtual void unbind ();
  53     virtual void update (double dt);
  54
  55 private:
  56
  57     Gyro _gyro;
  58
  59     SGPropertyNode_ptr _tumble_flag_node;
  60     SGPropertyNode_ptr _caged_node;
  61     SGPropertyNode_ptr _tumble_node;
  62     SGPropertyNode_ptr _pitch_in_node;
  63     SGPropertyNode_ptr _roll_in_node;
  64     SGPropertyNode_ptr _suction_node;
  65     SGPropertyNode_ptr _pitch_int_node;
  66     SGPropertyNode_ptr _roll_int_node;
  67     SGPropertyNode_ptr _pitch_out_node;
  68     SGPropertyNode_ptr _roll_out_node;
  69
  70 };
  71
  72 #endif // __INSTRUMENTS_ATTITUDE_INDICATOR_HXX