The SKIRT project
advanced radiative transfer for astrophysics
SphePowerLawRedistributeGeometryDecorator Class Reference

#include <SphePowerLawRedistributeGeometryDecorator.hpp>

Inheritance diagram for SphePowerLawRedistributeGeometryDecorator:

Public Member Functions

int dimension () const override
double exponent () const
double minRadius () const
Public Member Functions inherited from RedistributeGeometryDecorator
double density (Position bfr) const override
Position generatePosition () const override
Geometrygeometry () const
double SigmaX () const override
double SigmaY () const override
double SigmaZ () 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

 SphePowerLawRedistributeGeometryDecorator ()
double maxWeight () const override
double weight (Position bfr) const override
Protected Member Functions inherited from RedistributeGeometryDecorator
 RedistributeGeometryDecorator ()
void setupSelfAfter () override
Protected Member Functions inherited from Geometry
 Geometry ()
Randomrandom () const
void setupSelfBefore () override
Protected Member Functions inherited from SimulationItem
 SimulationItem ()
virtual bool offersInterface (const std::type_info &interfaceTypeInfo) const
Protected Member Functions inherited from Item
 Item ()

Private Types

using BaseType
using ItemType

Private Attributes

double _exponent
double _minRadius

Friends

class ItemRegistry

Detailed Description

The SphePowerLawRedistributeGeometryDecorator class implements a decorator that adjusts another geometry by multiplying the density with a spherical power law weight function

\[ \rho'(r, \theta, \phi) = n \rho(r, \theta, \phi) r^{-p}. \]

There is also a spherical clipping region around the origin determined by a radius \(r_0\) where the density is made zero to cut out the singularity.

Constructor & Destructor Documentation

◆ SphePowerLawRedistributeGeometryDecorator()

SphePowerLawRedistributeGeometryDecorator::SphePowerLawRedistributeGeometryDecorator ( )
inlineprotected

Default constructor for concrete Item subclass SphePowerLawRedistributeGeometryDecorator: "a decorator that redistributes another geometry with a spherical power law".

Member Function Documentation

◆ dimension()

int SphePowerLawRedistributeGeometryDecorator::dimension ( ) const
overridevirtual

The dimension of the geometry after applying the decorator cannot change and is thus the dimension of the original geometry.

Implements Geometry.

◆ exponent()

double SphePowerLawRedistributeGeometryDecorator::exponent ( ) const
inline

This function returns the value of the discoverable double property exponent: "the negative power of the weight function".

The minimum value for this property is "]0".

◆ maxWeight()

double SphePowerLawRedistributeGeometryDecorator::maxWeight ( ) const
overrideprotectedvirtual

The max weight, used in the rejection method, is equal to \(r_0^{-p}\) with \(r_0>0\) the radius of the clipping sphere.

Implements RedistributeGeometryDecorator.

◆ minRadius()

double SphePowerLawRedistributeGeometryDecorator::minRadius ( ) const
inline

This function returns the value of the discoverable double property minRadius: "the radius of the clipping sphere".

This property represents a physical quantity of type "length".

The minimum value for this property is "]0 pc".

◆ weight()

double SphePowerLawRedistributeGeometryDecorator::weight ( Position bfr) const
overrideprotectedvirtual

The weight function is the power law: \(r^{-p}\).

Implements RedistributeGeometryDecorator.


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