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advanced radiative transfer for astrophysics
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AngularDistribution Class Referenceabstract

#include <AngularDistribution.hpp>

Inheritance diagram for AngularDistribution:
Inheritance graph
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Public Member Functions

virtual int dimension () const =0
 
virtual Direction generateDirection () const =0
 
- Public Member Functions inherited from SimulationItem
template<class T >
T * find (bool setup=true) const
 
template<class T >
T * interface (int levels=-999999, bool setup=true) const
 
virtual string itemName () const
 
void setup ()
 
string typeAndName () const
 
- Public Member Functions inherited from Item
 Item (const Item &)=delete
 
virtual ~Item ()
 
void addChild (Item *child)
 
const vector< Item * > & children () const
 
virtual void clearItemListProperty (const PropertyDef *property)
 
void destroyChild (Item *child)
 
virtual bool getBoolProperty (const PropertyDef *property) const
 
virtual vector< double > getDoubleListProperty (const PropertyDef *property) const
 
virtual double getDoubleProperty (const PropertyDef *property) const
 
virtual string getEnumProperty (const PropertyDef *property) const
 
virtual int getIntProperty (const PropertyDef *property) const
 
virtual vector< Item * > getItemListProperty (const PropertyDef *property) const
 
virtual ItemgetItemProperty (const PropertyDef *property) const
 
virtual string getStringProperty (const PropertyDef *property) const
 
int getUtilityProperty (string name) const
 
virtual void insertIntoItemListProperty (const PropertyDef *property, int index, Item *item)
 
Itemoperator= (const Item &)=delete
 
Itemparent () const
 
virtual void removeFromItemListProperty (const PropertyDef *property, int index)
 
virtual void setBoolProperty (const PropertyDef *property, bool value)
 
virtual void setDoubleListProperty (const PropertyDef *property, vector< double > value)
 
virtual void setDoubleProperty (const PropertyDef *property, double value)
 
virtual void setEnumProperty (const PropertyDef *property, string value)
 
virtual void setIntProperty (const PropertyDef *property, int value)
 
virtual void setItemProperty (const PropertyDef *property, Item *item)
 
virtual void setStringProperty (const PropertyDef *property, string value)
 
void setUtilityProperty (string name, int value)
 
virtual string type () const
 
- Public Member Functions inherited from AngularDistributionInterface
virtual ~AngularDistributionInterface ()
 
virtual double probabilityForDirection (Direction bfk) const =0
 

Protected Member Functions

 AngularDistribution ()
 
Randomrandom () const
 
void setupSelfBefore () override
 
- Protected Member Functions inherited from SimulationItem
 SimulationItem ()
 
virtual bool offersInterface (const std::type_info &interfaceTypeInfo) const
 
virtual void setupSelfAfter ()
 
virtual void setupSelfBefore ()
 
- Protected Member Functions inherited from Item
 Item ()
 
- Protected Member Functions inherited from AngularDistributionInterface
 AngularDistributionInterface ()
 

Private Types

using BaseType = SimulationItem
 
using ItemType = AngularDistribution
 

Private Attributes

Random_random
 

Friends

class ItemRegistry
 

Detailed Description

An instance of an AngularDistribution subclass represents an angular probability distribution \(P(\Omega)\,{\mathrm{d}}\Omega\) that serves to describe the anisotropic emission of a point source. By convention, the probability distribution is normalized on the unit sphere as follows:

\[ \int P(\Omega) \,{\mathrm{d}}\Omega = \int_{\phi=0}^{2\pi} \int_{\theta=0}^{\pi} P(\theta,\phi)\sin\theta \,{\mathrm{d}}\theta \,{\mathrm{d}}\phi = 4\pi.\]

Subclasses must provide a means to obtain the emission probability \(P(\Omega)\) for a given direction \((\theta,\phi)\), and to generate a random direction \((\theta,\phi)\) drawn from the probability distribution \(P(\Omega)\,{\mathrm{d}}\Omega\).

This class inherits the AngularDistributionInterface offering the probabilityForDirection() which much be implemented by a subclass.

Constructor & Destructor Documentation

◆ AngularDistribution()

AngularDistribution::AngularDistribution ( )
inlineprotected

Default constructor for abstract Item subclass AngularDistribution : "an angular emission profile" .

Member Function Documentation

◆ dimension()

virtual int AngularDistribution::dimension ( ) const
pure virtual

This function returns the dimension of the angular distribution, which depends on its (lack of) symmetry. A value of 1 means spherical symmetry, 2 means axial symmetry and 3 means none of these symmetries. The function's implementation must be provided in a subclass.

Implemented in AxAngularDistribution, and IsotropicAngularDistribution.

◆ generateDirection()

virtual Direction AngularDistribution::generateDirection ( ) const
pure virtual

This function generates a random direction \((\theta,\phi)\) drawn from the probability distribution \(P(\Omega)\,{\mathrm{d}}\Omega\). The function's implementation must be provided in a subclass.

Implemented in AxAngularDistribution, and IsotropicAngularDistribution.

◆ random()

Random * AngularDistribution::random ( ) const
inlineprotected

This function returns the simulation's random generator as a service to subclasses.

◆ setupSelfBefore()

void AngularDistribution::setupSelfBefore ( )
overrideprotectedvirtual

This function caches the simulation's random generator for use by subclasses.

Reimplemented from SimulationItem.

Reimplemented in AxAngularDistribution, ConicalAngularDistribution, and NetzerAngularDistribution.


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