Gyoto
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Current state of a geodesic integration. More...
#include <GyotoWorldline.h>
Public Member Functions | |
IntegState (Worldline *line, const double *coord, const double delta) | |
Constructor. | |
virtual int | nextStep (double *coord) |
Make one step. |
Private Types | |
typedef Gyoto::SmartPointer < Gyoto::SmartPointee > | Subcontractor_t (Gyoto::FactoryMessenger *) |
A subcontractor builds an object upon order from the Factory. |
Private Member Functions | |
void | incRefCount () |
Increment the reference counter. Warning: Don't mess with the counter. | |
int | decRefCount () |
Decrement the reference counter and return current value. Warning: Don't mess with the counter. | |
int | getRefCount () |
Get the current number of references. |
Private Attributes | |
Worldline * | line_ |
Worldline that we are integrating. | |
Gyoto::SmartPointer < Gyoto::Metric::Generic > | gg_ |
The Metric in this end of the Universe. | |
double | coord_ [8] |
Previously determined coordinate. | |
double | norm_ |
Current norm of the 4-velocity. | |
double | normref_ |
Initial norm of the 4-velocity. | |
double | delta_ |
Integration step (current in case of adaptive). | |
bool | adaptive_ |
Whether Worldline::delta_ is adaptive. |
Friends | |
class | Gyoto::SmartPointer< Gyoto::Worldline::IntegState > |
Current state of a geodesic integration.
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inherited |
A subcontractor builds an object upon order from the Factory.
Various classes need to provide a subcontractor to be able to instanciate themselves upon order from the Factory. A subcontractor is a function (often a static member function) which accepts a pointer to a FactoryMessenger as unique parameter, communicates with the Factory using this messenger to read an XML description of the object to build, and returns this objet. SmartPointee::Subcontractor_t* is just generic enough a typedef to cast to and from other subcontractor types: Astrobj::Subcontractor_t, Metric::Subcontractor_t, Spectrum::Subcontractor_t. A subcontractor needs to be registered using the relevant Register() function: Astrobj::Register(), Metric::Register(), Spectrum::Register().
Gyoto::Worldline::IntegState::IntegState | ( | Worldline * | line, |
const double * | coord, | ||
const double | delta | ||
) |
Constructor.
line | The Worldline that we are integrating. Sets: Worldline::line_, Worldline::gg_, Worldline::adaptive_. |
coord | Initial coordinate. |
delta | Integration step. Sign determines direction. |
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virtual |
Make one step.
[out] | coord | Next position-velocity; |
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private |
Whether Worldline::delta_ is adaptive.
Taken from Worldline::line_, never updated.
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private |
The Metric in this end of the Universe.
Taken from Worldline::line_, never updated.
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private |
Worldline that we are integrating.
Beware this is not a SmartPointer. Make sure line_ still exists when calling nestStep().