2019-05-07 01:05:16 +02:00
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#pragma once
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#include <map>
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#include <string>
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#include <general.hh>
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#include <config_file.hh>
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enum tf_type
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{
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total,
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cdm,
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baryon,
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vtotal,
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vcdm,
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vbaryon,
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total0
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};
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class TransferFunction_plugin
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{
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public:
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// Cosmology cosmo_; //!< cosmological parameter, read from config_file
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ConfigFile *pcf_; //!< pointer to config_file from which to read parameters
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bool tf_distinct_; //!< bool if density transfer function is distinct for baryons and DM
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bool tf_withvel_; //!< bool if also have velocity transfer functions
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bool tf_withtotal0_; //!< have the z=0 spectrum for normalisation purposes
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bool tf_velunits_; //!< velocities are in velocity units (km/s)
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public:
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//! constructor
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TransferFunction_plugin(ConfigFile &cf)
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: pcf_(&cf), tf_distinct_(false), tf_withvel_(false), tf_withtotal0_(false), tf_velunits_(false)
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2019-05-24 08:13:58 +02:00
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{ }
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2019-05-07 01:05:16 +02:00
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//! destructor
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virtual ~TransferFunction_plugin(){};
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2019-05-24 08:13:58 +02:00
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//! initialise, i.e. prepare data for later usage
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virtual void intialise( void ) {}
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2019-05-07 01:05:16 +02:00
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//! compute value of transfer function at waven umber
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2019-05-15 21:03:10 +02:00
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virtual double compute(double k, tf_type type) const = 0;
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2019-05-07 01:05:16 +02:00
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//! return maximum wave number allowed
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2019-05-15 21:03:10 +02:00
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virtual double get_kmax(void) const = 0;
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2019-05-07 01:05:16 +02:00
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//! return minimum wave number allowed
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2019-05-15 21:03:10 +02:00
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virtual double get_kmin(void) const = 0;
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2019-05-07 01:05:16 +02:00
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//! return if density transfer function is distinct for baryons and DM
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bool tf_is_distinct(void)
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{
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return tf_distinct_;
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}
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//! return if we also have velocity transfer functions
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bool tf_has_velocities(void)
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{
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return tf_withvel_;
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}
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//! return if we also have a z=0 transfer function for normalisation
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bool tf_has_total0(void)
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{
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return tf_withtotal0_;
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}
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//! return if velocity returned is in velocity or in displacement units
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bool tf_velocity_units(void)
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{
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return tf_velunits_;
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}
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};
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//! Implements abstract factory design pattern for transfer function plug-ins
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struct TransferFunction_plugin_creator
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{
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//! create an instance of a transfer function plug-in
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2019-05-24 08:13:58 +02:00
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virtual std::unique_ptr<TransferFunction_plugin> create(ConfigFile &cf) const = 0;
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2019-05-07 01:05:16 +02:00
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//! destroy an instance of a plug-in
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virtual ~TransferFunction_plugin_creator() {}
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};
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//! Write names of registered transfer function plug-ins to stdout
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std::map<std::string, TransferFunction_plugin_creator *> &get_TransferFunction_plugin_map();
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void print_TransferFunction_plugins(void);
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//! Concrete factory pattern for transfer function plug-ins
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template <class Derived>
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struct TransferFunction_plugin_creator_concrete : public TransferFunction_plugin_creator
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{
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//! register the plug-in by its name
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TransferFunction_plugin_creator_concrete(const std::string &plugin_name)
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{
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get_TransferFunction_plugin_map()[plugin_name] = this;
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}
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//! create an instance of the plug-in
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2019-05-24 08:13:58 +02:00
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std::unique_ptr<TransferFunction_plugin> create(ConfigFile &cf) const
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2019-05-07 01:05:16 +02:00
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{
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2019-05-24 08:13:58 +02:00
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return std::make_unique<Derived>(cf);
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2019-05-07 01:05:16 +02:00
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}
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};
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// typedef TransferFunction_plugin TransferFunction;
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2019-05-24 08:13:58 +02:00
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std::unique_ptr<TransferFunction_plugin> select_TransferFunction_plugin(ConfigFile &cf);
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