smile::COrbitRuntimeTrajSampleCreator Class Reference

corresponding creator class for trajectory sampler. More...

#include <orbitan.h>

Inheritance diagram for smile::COrbitRuntimeTrajSampleCreator:

Collaboration diagram for smile::COrbitRuntimeTrajSampleCreator:

Public Member Functions
	COrbitRuntimeTrajSampleCreator (unsigned int _numSamplingPointsDefault, double _intTimeMin)
virtual CBasicOrbitRuntimeFnc *	createRuntimeFnc (const COrbit *orbit) const
	create an instance of the runtime function for a given orbit.
void	addOrbitSpecial (const CPosVelPoint< float > &orbitIC, size_t numSamplingPoints, double samplingTimestep)
	Add the orbit with the given initial conditions to the list of "special" orbits, for which the number of sampling points should be larger than usual. More...

Private Attributes
const unsigned int	numSamplingPointsDefault
	standard number of sampling points for all orbits except for the special list
const double	intTimeMin
	(minimum) integration time in periods, needed to compute timestep
std::vector< CPosVelPoint < float > >	specialIC
	list of special orbits, for which the number of sampling points needs to be larger
std::vector< size_t >	specialNumSamplingPoints
	list of required number of sampling points for special orbits
std::vector< double >	specialSamplingTimestep
	list of required sampling timestep for special orbits

Detailed Description

corresponding creator class for trajectory sampler.

In the Schwarzschild model, orbits that have a high weight may need more sampling points to represent them in the Nbody model. Consequently, if the number of sampling points for an orbit was insufficient, it will be re-integrated before exporting to Nbody model, with an increased number of sampling points.

This creator class takes care of these special orbits: it requests a default number of sampling points for all orbits except those ones which initial conditions are listed in the numSamplingPointsSpecial array; these special points are requested to provide more samples. intTimeMin is the (minimal) length of integration time (in periods), it is necessary to compute the interval between sampling points used by COrbitRuntimeTrajSample, since the runtime function does not know the total duration of the integration in advance.

Member Function Documentation

void smile::COrbitRuntimeTrajSampleCreator::addOrbitSpecial	(	const CPosVelPoint< float > &	orbitIC,
		size_t	numSamplingPoints,
		double	samplingTimestep
	)

Add the orbit with the given initial conditions to the list of "special" orbits, for which the number of sampling points should be larger than usual.

This function is called from COrbitLibrary::exportNbody, when the number of points sampled from a given orbit is less than required (i.e. its weight in the Schwarzschild solution divided by the mass of one particle in N-body model). This orbit is added to the "special" list, and during reintegtation, it will be sampled with the required number of points.

Parameters

[in]	orbitIC	specifies the initial conditions for the orbit
[in]	numSamplingPoints	is the minimum required number of sampling points for this orbit
[in]	samplingTimestep	additionally specifies the time interval between sampled points (because the total integration time for this orbit is not known by the creator class).

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

• orbitan.h
• orbitan.cpp