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flightgear/src/Instrumentation/altimeter.hxx

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Added static port system and a new altimeter model connected to it. The static port uses the /systems/static/ property subtree, and the altimeter uses the /instrumentation/altimeter/ property subtree.
2002-09-27 18:27:58 +00:00
// altimeter.hxx - an altimeter tied to the static port.
// Written by David Megginson, started 2002.
//
// This file is in the Public Domain and comes with no warranty.
#ifndef __INSTRUMENTS_ALTIMETER_HXX
#define __INSTRUMENTS_ALTIMETER_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 static port system and a new altimeter model connected to it. The static port uses the /systems/static/ property subtree, and the altimeter uses the /instrumentation/altimeter/ property subtree.
2002-09-27 18:27:58 +00:00
#include <Main/fgfs.hxx>
class SGInterpTable;
/**
* Model a barometric altimeter tied to the static port.
*
* Input properties:
*
* /instrumentation/altimeter/serviceable
* /instrumentation/altimeter/setting-inhg
* /systems/static[0]/pressure-inhg
*
* Output properties:
*
* /instrumentation/altimeter/indicated-altitude-ft
*/
class Altimeter : public FGSubsystem
{
public:
Altimeter ();
virtual ~Altimeter ();
virtual void init ();
virtual void update (double dt);
private:
SGPropertyNode_ptr _serviceable_node;
SGPropertyNode_ptr _setting_node;
SGPropertyNode_ptr _pressure_node;
SGPropertyNode_ptr _altitude_node;
SGInterpTable * _altitude_table;
};
#endif // __INSTRUMENTS_ALTIMETER_HXX
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