68 lines
1.4 KiB
C++
68 lines
1.4 KiB
C++
// pitot.hxx - the pitot air system.
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// Written by David Megginson, started 2002.
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//
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// Last modified by Eric van den Berg, 01 Nov 2013
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// This file is in the Public Domain and comes with no warranty.
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#ifndef __SYSTEMS_PITOT_HXX
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#define __SYSTEMS_PITOT_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/compiler.h>
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#include <string>
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using std::string;
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#include <simgear/props/props.hxx>
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#include <simgear/structure/subsystem_mgr.hxx>
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/**
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* Model a pitot air system.
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*
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* The output is the sum of static and dynamic pressure (not just the
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* dynamic pressure).
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*
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* Input properties:
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*
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* /systems/"name"/serviceable
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* /environment/pressure-inhg
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* /velocities/mach
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*
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* Output properties:
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*
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* /systems/"name"/total-pressure-inhg
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* /systems/"name"/measured-total-pressure-inhg
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*/
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class PitotSystem : public SGSubsystem
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{
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public:
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PitotSystem ( SGPropertyNode *node );
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virtual ~PitotSystem ();
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virtual void init ();
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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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std::string _name;
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int _num;
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double _stall_factor;
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SGPropertyNode_ptr _serviceable_node;
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SGPropertyNode_ptr _pressure_node;
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SGPropertyNode_ptr _mach_node;
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SGPropertyNode_ptr _total_pressure_node;
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SGPropertyNode_ptr _measured_total_pressure_node;
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SGPropertyNode_ptr _alpha_deg_node;
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SGPropertyNode_ptr _beta_deg_node;
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};
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#endif // __SYSTEMS_PITOT_HXX
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