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The SKIRT project
advanced radiative transfer for astrophysics
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The SKIRT project
advanced radiative transfer for astrophysics
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#include <TemperatureWavelengthCellLibrary.hpp>
Public Member Functions | |
| int | numTemperatures () const |
| int | numWavelengths () const |
| virtual vector< int > | mapping (const Array &bv) const =0 |
| virtual int | numEntries () 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 Item * | getItemProperty (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) |
| Item & | operator= (const Item &)=delete |
| Item * | parent () 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 | |
| TemperatureWavelengthCellLibrary () | |
| vector< int > | mapping (const Array &bv) const override |
| int | numEntries () const override |
| Protected Member Functions inherited from SpatialCellLibrary | |
| SpatialCellLibrary () | |
| 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 () | |
Private Types | |
| using | BaseType = SpatialCellLibrary |
| using | ItemType = TemperatureWavelengthCellLibrary |
Private Attributes | |
| int | _numTemperatures |
| int | _numWavelengths |
Friends | |
| class | ItemRegistry |
The TemperatureWavelengthCellLibrary class provides a library scheme for grouping spatial cells based on the indicative dust temperature and the indicative dust wavelength of the stored radiation field in each cell. The library contains a two-dimensional table of entries corresponding to different values for each of these properties. The user can configure the number of bins in each of the two dimensions.
Note: the current implementation of this class takes into account only the dust media; media with other material types are ignored.
The indicative dust temperature for a cell is obtained by averaging the LTE equilibrium temperatures for the various dust mixes present in the cell. For a definition and more information about the indicative dust temperature, refer to the MediumSystem::indicativeDustTemperature() function.
The indicative dust wavelength for a cell \(m\) is defined as
\[ {\bar{\lambda}}_m = \frac{\int_0^\infty k_{m,\lambda}^{\text{abs}}\, J_{m,\lambda}\, \lambda\, {\text{d}}\lambda }{ \int_0^\infty k_{m,\lambda}^{\text{abs}}\, J_{m,\lambda}\, {\text{d}}\lambda} \]
where \(k_{m,\lambda}^{\text{abs}}\) is the dust absorption opacity in the cell,
\[ k_{m,\lambda}^{\text{abs}} = \sum_h \kappa_{m,h,\lambda}^{\text{abs}} \, \rho_{m,h}\]
with the sum running over dusty media only.
When an item of this type is used, the names provided by the conditional value expression "NonIdentitySpatialCellLibrary" are inserted into the name sets used for evaluating Boolean expressions.
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inlineprotected |
Default constructor for concrete Item subclass TemperatureWavelengthCellLibrary : "a library scheme for grouping spatial cells based on indicative temperature and wavelength" .
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overrideprotectedvirtual |
This function returns a vector nv with length \(N_{\text{cells}}\) that maps each cell index \(m\) to the corresponding library entry index \(n_m\). In this class the function loops over all spatial cells and calculates the indicative dust temperature and the indicative dust wavelength of the stored radiation field for each of them. Based on these values, a two-dimensional grid is established such that it fits all the measured values. The temperature grid points \({\bar{T}}_{(i)}\) are distributed linearly, i.e.
\[ {\bar{T}}_{(i)} = {\bar{T}}_{\text{min}} + \frac{i}{N_{\bar{T}}}\, ({\bar{T}}_{\text{max}} - {\bar{T}}_{\text{min}}) \qquad i=0,\ldots,N_{\bar{T}} \]
where \({\bar{T}}_{\text{min}}\) and \({\bar{T}}_{\text{max}}\) represent the smallest and largest values of the indicative dust temperature found among all spatial cells. The wavelength grid points have logarithmic distribution,
\[ {\bar{\lambda}}_{(j)} = {\bar{\lambda}}_{\text{min}} \left( \frac{ {\bar{\lambda}}_{\text{max}} }{ {\bar{\lambda}}_{\text{min}} } \right)^{j/N_{\bar{\lambda}}} \qquad j=0,\ldots,N_{\bar{\lambda}}. \]
The function then calculates for each cell \(m\) its library entry \(n \equiv (i,j)\).
Implements SpatialCellLibrary.
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overrideprotectedvirtual |
This function returns the number of entries in the library. In this class the function returns the user-configured number of bins, i.e. the product of the number of temperature bins and the number of wavelength bins.
Implements SpatialCellLibrary.
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inline |
This function returns the value of the discoverable integer property numTemperatures : "the number of temperature bins" .
The minimum value for this property is "5" .
The maximum value for this property is "10000" .
The default value for this property is given by the conditional value expression "40" .
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inline |
This function returns the value of the discoverable integer property numWavelengths : "the number of wavelength bins" .
The minimum value for this property is "5" .
The maximum value for this property is "10000" .
The default value for this property is given by the conditional value expression "25" .