public override Vector3d UnpackForces(Vector2 packedForces, double altitudeAboveSea, double velocity)
{
double rho = StockAeroUtil.GetDensity(altitudeAboveSea, body_);
double scale = velocity * velocity * rho;
return(new Vector3d((double)packedForces.x * scale, (double)packedForces.y * scale, 0.0));
}
public override Vector2 PackForces(Vector3d forces, double altitudeAboveSea, double velocity)
{
double rho = StockAeroUtil.GetDensity(altitudeAboveSea, body_); // would be even better to use FAR method of computing the air density (which also depends on velocity), but this is already better than nothing
if (rho < 0.0000000001)
{
return(new Vector2(0, 0));
}
double invScale = 1.0 / (rho * Math.Max(1.0, velocity * velocity));
forces *= invScale;
return(new Vector2((float)forces.x, (float)forces.y));
}
public override Vector2 PackForces(Vector3d forces, double altitudeAboveSea, double velocity)
{
double rho = StockAeroUtil.GetDensity(altitudeAboveSea, body_);
if (rho < 0.0000000001)
{
return(new Vector2(0, 0));
}
double invScale = 1.0 / (rho * Math.Max(1.0, velocity * velocity)); // divide by v² and rho before storing the force, to increase accuracy (the reverse operation is performed when reading from the cache)
forces *= invScale;
return(new Vector2((float)forces.x, (float)forces.y));
}