The SKIRT project
advanced radiative transfer for astrophysics
SphericalCellSource Class Reference

#include <SphericalCellSource.hpp>

Inheritance diagram for SphericalCellSource:

Public Types

enum class  AutoRevolveType : int { None , Inclination , Azimuth , InclinationAndAzimuth }

Public Member Functions

AutoRevolveType autoRevolve () const
int numAzimuthRevolveBins () const
int numInclinationRevolveBins () const
Public Member Functions inherited from ImportedSource
int dimension () const override
string filename () const
bool hasVelocity () const override
bool importBias () const
bool importCurrentMass () const
bool importVelocity () const
bool importVelocityDispersion () const
void launch (PhotonPacket *pp, size_t historyIndex, double L) const override
double luminosity () const override
double meanSpecificLuminosity (const Band *band, int m) const
double meanSpecificLuminosity (Range wavelengthRange, int m) const
void prepareForLaunch (double sourceBias, size_t firstIndex, size_t numIndices) override
SEDFamilysedFamily () const
const Snapshotsnapshot () const
double specificLuminosity (double wavelength) const override
double specificLuminosity (double wavelength, int m) const
string useColumns () const
Range wavelengthRange () const override
Public Member Functions inherited from Source
double sourceWeight () const
double wavelengthBias () const
WavelengthDistributionwavelengthBiasDistribution () const
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 WavelengthRangeInterface
virtual ~WavelengthRangeInterface ()

Protected Member Functions

 SphericalCellSource ()
SnapshotcreateAndOpenSnapshot () override
Protected Member Functions inherited from ImportedSource
 ImportedSource ()
 ~ImportedSource ()
void setupSelfAfter () override
Protected Member Functions inherited from Source
 Source ()
void informAvailableWavelengthRange (Range available, string itemType)
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 ()
Protected Member Functions inherited from SourceWavelengthRangeInterface
 SourceWavelengthRangeInterface ()
Protected Member Functions inherited from WavelengthRangeInterface
 WavelengthRangeInterface ()

Private Types

using BaseType
using ItemType

Private Attributes

AutoRevolveType _autoRevolve
int _numAzimuthRevolveBins
int _numInclinationRevolveBins

Friends

class ItemRegistry

Detailed Description

A SphericalCellSource instance represents a primary radiation source with a spatial and spectral luminosity distribution described by a list of spherical cells lined up with the spherical coordinate axes; refer to the SphericalCellSnapshot class for more information. The cell data is usually extracted from a cosmological simulation snapshot, and it must be provided in a column text file formatted as described below.

Refer to the description of the TextInFile class for information on overall formatting and on how to include header lines specifying the units for each column in the input file. In case the input file has no unit specifications, the default units mentioned below are used instead. The number of columns expected in the input file depends on the options configured by the user for this SphericalCellSource instance, including the selected SEDFamily:

\[ r_\mathrm{min}\,(\mathrm{pc}) \quad \theta_\mathrm{min}\,(\mathrm{deg}) \quad \varphi_\mathrm{min}\,(\mathrm{deg}) \quad r_\mathrm{max}\,(\mathrm{pc}) \quad \theta_\mathrm{max}\,(\mathrm{deg}) \quad \varphi_\mathrm{max}\,(\mathrm{deg}) \quad [ v_x\,(\mathrm{km/s}) \quad v_y\,(\mathrm{km/s}) \quad v_z\,(\mathrm{km/s}) \quad [ \sigma_v\,(\mathrm{km/s}) ] \quad [M_\mathrm{curr}\,(\mathrm{M}_\odot)] \quad b\,(1) \quad \dots \text{SED family parameters} \dots \]

The first six columns specify the coordinates of the bordering surfaces of the cell. The autoRevolve property controls a feature to automatically revolve 2D data to 3D. See the SphericalCellSnapshot class for more information.

If the importVelocity option is enabled, the next three columns specify the \(v_r\), \(v_\theta\), \(v_\varphi\) components of the bulk velocity, in spherical coordinates, for the source population represented by the cell. If additionally the importVelocityDispersion option is enabled, the next column specifies the velocity dispersion \(\sigma_v\), adjusting the velocity for each photon packet launch with a random offset sampled from a spherically symmetric Gaussian distribution. If the importCurrentMass option is enabled, the next column provides the current mass of the cell, \(M_\mathrm{curr}\). This mass is currently only used for probing the input model. If the importBias option is enabled, the next column specifies the bias parameter, \(b\), which is used to bias the photon sampling for each cell (see the documentation of the ImportedSource class).

The remaining columns specify the parameters required by the configured SED family to select and scale the appropriate SED. For example for the Bruzual-Charlot SED family, the remaining columns provide the initial mass, the metallicity, and the age of the stellar population represented by the cell. Refer to the documentation of the configured type of SEDFamily for information about the expected parameters and their default units.

This item type is displayed only if the Boolean expression "Level2" evaluates to true after replacing the names by true or false depending on their presence.

Member Enumeration Documentation

◆ AutoRevolveType

enum class SphericalCellSource::AutoRevolveType : int
strong

The enumeration type for selecting the auto-revolve option.

None : "no auto-revolve".

Inclination : "auto-revolve inclination".

Azimuth : "auto-revolve azimuth".

InclinationAndAzimuth : "auto-revolve both inclination and azimuth".

Constructor & Destructor Documentation

◆ SphericalCellSource()

SphericalCellSource::SphericalCellSource ( )
inlineprotected

Default constructor for concrete Item subclass SphericalCellSource: "a primary source imported from spherical cell data".

Member Function Documentation

◆ autoRevolve()

AutoRevolveType SphericalCellSource::autoRevolve ( ) const
inline

This function returns the value of the discoverable AutoRevolveType enumeration property autoRevolve: "automatically revolve 1D or 2D data to a 3D model".

The default value for this property is given by the conditional value expression "None".

◆ createAndOpenSnapshot()

Snapshot * SphericalCellSource::createAndOpenSnapshot ( )
overrideprotectedvirtual

This function constructs a new SphericalCellSource object, calls its open() function, and returns a pointer to the object. Ownership of the Snapshot object is transferred to the caller.

Implements ImportedSource.

◆ numAzimuthRevolveBins()

int SphericalCellSource::numAzimuthRevolveBins ( ) const
inline

This function returns the value of the discoverable integer property numAzimuthRevolveBins: "the number of azimuth bins for auto-revolving 1D or 2D data".

This property is relevant only if the Boolean expression "autoRevolveAzimuth|autoRevolveInclinationAndAzimuth" evaluates to true after replacing the names by true or false depending on their presence.

The minimum value for this property is "2".

The maximum value for this property is "1024".

The default value for this property is given by the conditional value expression "16".

◆ numInclinationRevolveBins()

int SphericalCellSource::numInclinationRevolveBins ( ) const
inline

This function returns the value of the discoverable integer property numInclinationRevolveBins: "the number of inclination bins for auto-revolving 1D or 2D data".

This property is relevant only if the Boolean expression "autoRevolveInclination|autoRevolveInclinationAndAzimuth" evaluates to true after replacing the names by true or false depending on their presence.

The minimum value for this property is "2".

The maximum value for this property is "1024".

The default value for this property is given by the conditional value expression "16".


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