The SKIRT project
advanced radiative transfer for astrophysics
CombineGeometryDecorator Class Reference

#include <CombineGeometryDecorator.hpp>

Inheritance diagram for CombineGeometryDecorator:

Public Member Functions

double density (Position bfr) const override
int dimension () const override
GeometryfirstGeometry () const
double firstWeight () const
Position generatePosition () const override
GeometrysecondGeometry () const
double secondWeight () 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

 CombineGeometryDecorator ()
void setupSelfBefore () 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
virtual void setupSelfAfter ()
Protected Member Functions inherited from Item
 Item ()

Private Types

using BaseType
using ItemType

Private Attributes

Geometry_firstGeometry
double _firstWeight
Geometry_secondGeometry
double _secondWeight
double _w1
double _w2

Friends

class ItemRegistry

Detailed Description

The CombineGeometryDecorator class implements a decorator that combines two arbitrary geometries (with a relative weight factor) into an object that behaves as a single geometry.

Constructor & Destructor Documentation

◆ CombineGeometryDecorator()

CombineGeometryDecorator::CombineGeometryDecorator ( )
inlineprotected

Default constructor for concrete Item subclass CombineGeometryDecorator: "a decorator that combines two different geometries".

Member Function Documentation

◆ density()

double CombineGeometryDecorator::density ( Position bfr) const
overridevirtual

This function returns the density \(\rho({\bf{r}})\) at the position \({\bf{r}}\). It adds the contribution of the two components, weighted by their weights.

Implements Geometry.

◆ dimension()

int CombineGeometryDecorator::dimension ( ) const
overridevirtual

This function returns the dimension of the combined geometry, which depends on the (lack of) symmetry in the geometries of its stellar components. A value of 1 means spherical symmetry, 2 means axial symmetry and 3 means none of these symmetries. The geometry with the least symmetry (i.e. the highest dimension) determines the result for the whole system.

Implements Geometry.

◆ firstGeometry()

Geometry * CombineGeometryDecorator::firstGeometry ( ) const
inline

This function returns the value of the discoverable item property firstGeometry: "the first geometry".

◆ firstWeight()

double CombineGeometryDecorator::firstWeight ( ) const
inline

This function returns the value of the discoverable double property firstWeight: "the weight of the first geometry".

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

The default value for this property is given by the conditional value expression "1".

◆ generatePosition()

Position CombineGeometryDecorator::generatePosition ( ) const
overridevirtual

This function generates a random position from the geometry, by drawing a random point from the three-dimensional probability density \(p({\bf{r}})\, {\text{d}}{\bf{r}} = \rho({\bf{r}})\, {\text{d}}{\bf{r}}\). It first generates a random component, and subsequently generates a random position from this component by calling the corresponding generatePosition() function.

Implements Geometry.

◆ secondGeometry()

Geometry * CombineGeometryDecorator::secondGeometry ( ) const
inline

This function returns the value of the discoverable item property secondGeometry: "the second geometry".

◆ secondWeight()

double CombineGeometryDecorator::secondWeight ( ) const
inline

This function returns the value of the discoverable double property secondWeight: "the weight of the second geometry".

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

The default value for this property is given by the conditional value expression "1".

◆ setupSelfBefore()

void CombineGeometryDecorator::setupSelfBefore ( )
overrideprotectedvirtual

This function normalizes the relative weights of the two geometries.

Reimplemented from SimulationItem.

◆ SigmaX()

double CombineGeometryDecorator::SigmaX ( ) const
overridevirtual

This function returns the X-axis surface density, i.e. the integration of the density along the entire X-axis,

\[ \Sigma_X = \int_{-\infty}^\infty \rho(x,0,0)\,{\text{d}}x. \]

It adds the contribution of the two components, weighted by their weights.

Implements Geometry.

◆ SigmaY()

double CombineGeometryDecorator::SigmaY ( ) const
overridevirtual

This function returns the Y-axis surface density, i.e. the integration of the density along the entire Y-axis,

\[ \Sigma_Y = \int_{-\infty}^\infty \rho(0,y,0)\,{\text{d}}y. \]

It adds the contribution of the two components, weighted by their weights.

Implements Geometry.

◆ SigmaZ()

double CombineGeometryDecorator::SigmaZ ( ) const
overridevirtual

This function returns the Z-axis surface density, i.e. the integration of the density along the entire Z-axis,

\[ \Sigma_Z = \int_{-\infty}^\infty \rho(0,0,z)\,{\text{d}}z. \]

It adds the contribution of the two components, weighted by their weights.

Implements Geometry.


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