FGDefaultGroundCallback Class Reference

Detailed Description

Definition at line 125 of file FGGroundCallback.h.

Inheritance diagram for FGDefaultGroundCallback:

Collaboration diagram for FGDefaultGroundCallback:

Public Member Functions
	FGDefaultGroundCallback (double semiMajor, double semiMinor)
double	GetAGLevel (double t, const FGLocation &location, FGLocation &contact, FGColumnVector3 &normal, FGColumnVector3 &v, FGColumnVector3 &w) const override
	Compute the altitude above ground.
void	SetEllipse (double semimajor, double semiminor) override
	Set the planet semimajor and semiminor axes.
void	SetTerrainElevation (double h) override
	Set the terrain elevation.
Public Member Functions inherited from FGGroundCallback
virtual double	GetAGLevel (const FGLocation &location, FGLocation &contact, FGColumnVector3 &normal, FGColumnVector3 &v, FGColumnVector3 &w) const
	Compute the altitude above ground.
void	SetTime (double _time)
	Set the simulation time.

Additional Inherited Members
Protected Attributes inherited from FGGroundCallback
double	time

Constructor & Destructor Documentation

FGDefaultGroundCallback()

FGDefaultGroundCallback ( double  semiMajor, double  semiMinor  )

inlineexplicit

Definition at line 128 of file FGGroundCallback.h.

                                                                       :
    a(semiMajor), b(semiMinor) {}

Member Function Documentation

GetAGLevel()

double GetAGLevel ( double  t, const FGLocation &  location, FGLocation &  contact, FGColumnVector3 &  normal, FGColumnVector3 &  v, FGColumnVector3 &  w  ) const

overridevirtual

Compute the altitude above ground.

The altitude depends on time t and location l.

Parameters

t	simulation time
l	location
contact	Contact point location below the location l
normal	Normal vector at the contact point
v	Linear velocity at the contact point
w	Angular velocity at the contact point

Returns

altitude above ground

Implements FGGroundCallback.

Definition at line 41 of file FGGroundCallback.cpp.

{
  vel.InitMatrix();
  angularVel.InitMatrix();
  FGLocation l = loc;
  l.SetEllipse(a,b);
  double latitude = l.GetGeodLatitudeRad();
  double cosLat = cos(latitude);
  double longitude = l.GetLongitude();
  normal = FGColumnVector3(cosLat*cos(longitude), cosLat*sin(longitude),
                           sin(latitude));
  contact.SetEllipse(a, b);
  contact.SetPositionGeodetic(longitude, latitude, mTerrainElevation);
  return l.GetGeodAltitude() - mTerrainElevation;
}

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SetEllipse()

void SetEllipse ( double  semimajor, double  semiminor  )

inlineoverridevirtual

Set the planet semimajor and semiminor axes.

Only needs to be implemented if JSBSim should be allowed to modify the planet dimensions.

Reimplemented from FGGroundCallback.

Definition at line 139 of file FGGroundCallback.h.

  { a = semimajor; b = semiminor; }

SetTerrainElevation()

void SetTerrainElevation ( double  h )

inlineoverridevirtual

Set the terrain elevation.

Only needs to be implemented if JSBSim should be allowed to modify the local terrain radius (see the default implementation)

Reimplemented from FGGroundCallback.

Definition at line 136 of file FGGroundCallback.h.

  { mTerrainElevation = h; }

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The documentation for this class was generated from the following files:

• FGGroundCallback.h
• FGGroundCallback.cpp