I think, as in the case of search engines etc, the code behind those might be nightmarishly complex. Then again, it's a neural net using machine learning, so it mostly codes itself to a certain extent. Not sure if that is good or bad.I think Ill keep on doing classic programming than trying to program an AI....
// Define the X-33 class
class X33 : public VESSEL4 {
public:
// Constructor
X33(OBJHANDLE hObj, int flightmodel);
// Flight model override function
void clbkSetClassCaps(FILEHANDLE cfg);
// Flight model update function
void clbkPreStep(double simt, double simdt, double mjd);
private:
// Private variables for spacecraft dynamics
double mass;
double fuel;
VECTOR3 CoM;
VECTOR3 CoP;
VECTOR3 thrust_vector;
double thrust_magnitude;
double Isp;
double Cd;
double Cl;
double As;
double Ar;
double bank_angle;
double pitch_angle;
double yaw_angle;
double altitude;
// Private functions for spacecraft dynamics
void update_dynamics(double simt, double simdt);
void compute_forces_moments();
};
// Constructor
X33::X33(OBJHANDLE hObj, int flightmodel) : VESSEL4(hObj, flightmodel) {
// Set initial values for private variables
mass = 27000.0;
fuel = 18000.0;
CoM = _V(0, 0, -5.6);
CoP = _V(0, 0, -4.2);
thrust_vector = _V(0, 0, -1);
thrust_magnitude = 300000.0;
Isp = 330.0;
Cd = 0.3;
Cl = 0.3;
As = 330.0;
Ar = 160.0;
bank_angle = 0.0;
pitch_angle = 0.0;
yaw_angle = 0.0;
altitude = 0.0;
}
// Flight model override function
void X33::clbkSetClassCaps(FILEHANDLE cfg) {
VESSEL4::clbkSetClassCaps(cfg);
// Set vessel mass and empty mass
SetEmptyMass(mass - fuel);
SetSize(10.0);
// Define propellant resources
AddPropellantResource("LH2", fuel);
// Define thruster groups
CreateThrusterGroup("main", 1, &thrust_vector, true, Isp, Cd, Cl, As, Ar);
}
// Flight model update function
void X33::clbkPreStep(double simt, double simdt, double mjd) {
// Update spacecraft dynamics
update_dynamics(simt, simdt);
// Calculate forces and moments acting on spacecraft
compute_forces_moments();
// Update spacecraft state
VESSEL4::clbkPreStep(simt, simdt, mjd);
}
// Private function to update spacecraft dynamics
void X33::update_dynamics(double simt, double simdt) {
// Update vessel velocity and position
VECTOR3 vel = GetRelativeVelocity();
VECTOR3 pos = GetRelativePos();
VECTOR3 acc = GetGravityRef()->GetAcceleration(GetPosition());
SetRelativeVel(vel + acc * simdt);
SetRelativePos(pos + vel * simdt + 0.5 * acc * simdt * simdt);
// Update vessel attitude
bank_angle += GetControlSurfaceLevel(AIRCTRL_BANK, 0) * simdt * 10;
pitch_angle += GetControlSurfaceLevel(AIRCTRL_PITCH, 0) * simdt *
// Define the X-33 class
class X33 : public VESSEL4
{
public:
// Constructor
X33(OBJHANDLE hObj, int flightmodel);
// Destructor
~X33();
// Flight model override function
void clbkSetClassCaps(FILEHANDLE cfg);
// Flight model update function
void clbkPreStep(double simt, double simdt, double mjd);
private:
// Private variables for spacecraft dynamics
double mass;
double fuel;
VECTOR3 CoM;
VECTOR3 CoP;
VECTOR3 thrust_vector;
double thrust_magnitude;
double Isp;
double Cd;
double Cl;
double As;
double Ar;
// Private functions for spacecraft dynamics
void update_dynamics(double simt, double simdt);
void compute_forces_moments();
};
X33::X33(OBJHANDLE hObj, int flightmodel) : VESSEL4(hObj, flightmodel)
{
// Set initial values for private variables
mass = 10000.0; // kg
fuel = 5000.0; // kg
CoM = _V(0, 0, 0); // m
CoP = _V(0, 0, 0); // m
thrust_vector = _V(0, 0, 0);
thrust_magnitude = 0.0;
Isp = 450.0; // s
Cd = 0.3;
Cl = 0.0;
As = 100.0; // m^2
Ar = 100.0; // m^2
}
X33::~X33()
{
// Destructor
}
void X33::clbkSetClassCaps(FILEHANDLE cfg)
{
// Set spacecraft capabilities in config file
VESSEL4::clbkSetClassCaps(cfg);
// Set fuel and mass properties
SetPropellantMass(THGROUP_MAIN, fuel);
SetEmptyMass(mass);
}
void X33::clbkPreStep(double simt, double simdt, double mjd)
{
// Update spacecraft dynamics
update_dynamics(simt, simdt);
// Compute forces and moments
compute_forces_moments();
// Update spacecraft state
SetThrusterGroupLevel(THGROUP_MAIN, thrust_magnitude);
SetForce(thrust_vector);
SetCoMOffset(CoM);
SetRotDrag(_V(Cd * As, Cd * As, Cd * Ar));
SetPitchMoment(_V(0, 0, Cl * As * 0.5));
SetBankMoment(_V(0, 0, Cl * As * 0.5));
SetLiftCoeff(Cl);
}
void X33::update_dynamics(double simt, double simdt)
{
// Compute spacecraft mass and fuel
mass = GetEmptyMass() + GetPropellantMass(THGROUP_MAIN);
fuel = GetPropellantMass(THGROUP_MAIN);
}
void X33::compute_forces_moments()
{
// Compute thrust vector and magnitude
thrust_vector = _V(0, 0, -thrust_magnitude);
thrust_magnitude = 50000.0 * GetThrusterGroupLevel
Not the kind of locomotive I prefer. But certainly a worthy and important milestone of human art of engineering.A happier anniversary today, the Flying Scotsman began service 100 years ago today.
Flying Scotsman | National Railway Museum
Find out all about the world's most famous steam locomotive.www.railwaymuseum.org.uk
Mallard is probably less well known to most folk.
For a long time thought that one of the reasons why we easily get almost unmoved warm weather is mainly the shift of Haddley circulation northward - subtropical heights are anomaly stretched across the western Mediterranean and the Iberian Peninsula and towards us, etc. But there is something else too. A new regulation came into force in 2020, reducing the limit of sulfur oxide in shipping from 3.5% to 0.5%. This shock change has caused that in places of frequented shipping 30-60N the ocean has to absorb more solar radiation than before this change and so the oceans and regions 30-60N warm perhaps the most. SO2 in the atmosphere is like a volcanic eruption in the role of reflecting the incoming solar radiation. You take SO2 from the atmosphere and the heat absorbs the ocean. So the dilemma, what's better to have a smaller environmental burden, an anomaly rapidly warming atmosphere, or to regulate SO2 less and not experience such a shock therapy?
What is to blame for a very rapid temperature increase in mid latitudes 30-60N since 2020? Well it appaers we can partially blame the new shipping regulation in 2020 reducing max S02 emisions from 3.5 to 0.5 pct. S02 absorbs solar radiation and if taken out from the atmosphere its up to oceans to store all this excessive heat.
UK in chaos after a day of several inches of snow.
The thing I don't get about the UK is how there can be people "not used to snow". Doesn't the whole country see some snow each year?I don't know for the northern parts, but I'd assume that for the areas not used to snow, it's like around here.