Class SourceDirectedEmission
Defined in File Source.h
Inheritance Relationships
Base Type
public SourceFeature(Class SourceFeature)
Class Documentation
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class SourceDirectedEmission : public SourceFeature
Directed emission from a source from the von-Mises-Fisher distribution.
The emission from the source is generated following the von-Mises-Fisher distribution with mean direction mu and concentration parameter kappa. The sampling from the vMF distribution follows this document by Julian Straub: http://people.csail.mit.edu/jstraub/download/straub2017vonMisesFisherInference.pdf The emitted particles are assigned a weight so that the detected particles can be reweighted to an isotropic emission distribution instead of a vMF distribution. For details, see PoS (ICRC2019) 447.
Public Functions
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SourceDirectedEmission(Vector3d mu, double kappa)
Constructor
- Parameters
mu – mean direction of the emission, mu should be normelized
kappa – concentration parameter
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void setCa(double alpha)
set sampling parameter Ca
- Parameters
alpha – angle between x and y component of direction. alpha = arctan(mu.y / mu.x)
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void setSa(double alpha)
set sampling parameter Sa
- Parameters
alpha – angle between x and y component of direction. alpha = arctan(mu.y / mu.x)
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void setCd(double delta)
set sampling parameter Cd
- Parameters
delta – angle between mu vector and z-axis. delta = arcsin(mu.z)
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void setSd(double delta)
set sampling parameter Sd
- Parameters
delta – angle between mu vector and z-axis. delta = arcsin(mu.z)
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double getCa() const
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double getSa() const
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double getCd() const
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double getSd() const
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void setDescription()
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inline virtual void prepareParticle(ParticleState &particle) const
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std::string getDescription() const
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inline size_t addReference() const
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inline size_t removeReference() const
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inline int removeReferenceNoDelete() const
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inline size_t getReferenceCount() const
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SourceDirectedEmission(Vector3d mu, double kappa)