The SKIRT project
advanced radiative transfer for astrophysics
TabulatedWavelengthDistribution Class Referenceabstract

#include <TabulatedWavelengthDistribution.hpp>

Inheritance diagram for TabulatedWavelengthDistribution:

Public Member Functions

double generateWavelength () const override
double probability (double wavelength) const override
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

Protected Member Functions

 TabulatedWavelengthDistribution ()
virtual void getWavelengthsAndProbabilities (Array &lambdav, Array &pv) const =0
void setupSelfBefore () override
Protected Member Functions inherited from WavelengthDistribution
 WavelengthDistribution ()
Randomrandom () const
void setupSelfBefore () override
Protected Member Functions inherited from SimulationItem
 SimulationItem ()
virtual bool offersInterface (const std::type_info &interfaceTypeInfo) const
virtual void setupSelfAfter ()
Protected Member Functions inherited from Item
 Item ()

Private Types

using BaseType
using ItemType

Private Attributes

Array _lambdav
Array _Pv
Array _pv

Friends

class ItemRegistry

Detailed Description

TabulatedWavelengthDistribution is an abstract class for representing wavelength probability distributions that are tabulated by the user in the form of wavelength/probability pairs. The probability distribution function is defined segment-wise by the tabulated values, using logarithmic interpolation. The wavelengths must be listed in increasing or decreasing order. Probability values outside the range indicated by the first and the last tabulated wavelength are considered to be zero. In addition, this range is intersected with the wavelength range of the associated source (obtained through the SourceWavelengthRangeInterface) before the distribution is normalized.

The subclass must load the tabulated data, and this abstract class handles everything else.

Constructor & Destructor Documentation

◆ TabulatedWavelengthDistribution()

TabulatedWavelengthDistribution::TabulatedWavelengthDistribution ( )
inlineprotected

Default constructor for abstract Item subclass TabulatedWavelengthDistribution: "a wavelength probability distribution tabulated by the user".

Member Function Documentation

◆ generateWavelength()

double TabulatedWavelengthDistribution::generateWavelength ( ) const
overridevirtual

This function draws a random wavelength from the wavelength distribution.

Implements WavelengthDistribution.

◆ getWavelengthsAndProbabilities()

virtual void TabulatedWavelengthDistribution::getWavelengthsAndProbabilities ( Array & lambdav,
Array & pv ) const
protectedpure virtual

This function must be implemented in each subclass to return the wavelengths and the corresponding probabilities tabulating the distribution. The function must guarantee that both arrays have the same size. The wavelengths must be listed in increasing or decreasing order. Constant scaling of the probabilities is not important because the distribution will be normalized by this abstract class.

Implemented in FileWavelengthDistribution, and ListWavelengthDistribution.

◆ probability()

double TabulatedWavelengthDistribution::probability ( double wavelength) const
overridevirtual

This function returns the probability of the distribution at the given wavelength.

Implements WavelengthDistribution.

◆ setupSelfBefore()

void TabulatedWavelengthDistribution::setupSelfBefore ( )
overrideprotectedvirtual

This function asks the subclass to load the wavelength/probability pairs and precalculates the cumulative distribution for use by the other functions in this class.

Reimplemented from SimulationItem.


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