Gyoto::Astrobj::PageThorneDisk Class Reference

Geometrically thin disk in Kerr metric. More...

#include <GyotoPageThorneDisk.h>

Inheritance diagram for Gyoto::Astrobj::PageThorneDisk:
Gyoto::Astrobj::ThinDisk Gyoto::Hook::Listener Gyoto::Astrobj::Generic Gyoto::Functor::Double_constDoubleArray Gyoto::SmartPointee Gyoto::Object

List of all members.

Public Types

typedef Gyoto::SmartPointer
< Gyoto::SmartPointee
Subcontractor_t (Gyoto::FactoryMessenger *, std::vector< std::string > const &)
 A subcontractor builds an object upon order from the Factory.

Public Member Functions

virtual Property const * getProperties () const
 Get list of properties.
 PageThorneDisk ()
 Standard constructor.
 PageThorneDisk (const PageThorneDisk &)
 Copy constructor.
virtual PageThorneDiskclone () const
 Cloner.
virtual ~PageThorneDisk ()
 Destructor.
virtual void metric (SmartPointer< Metric::Generic >)
 Set metric, checking that it is either KerrBL or KerrKS.
void BlackbodyMdot (double v)
 Set mdot_ to v, and blackbody_ to true.
double BlackbodyMdot () const
void blackBody (bool t)
bool blackBody () const
void uniFlux (bool t)
bool uniFlux () const
virtual double emission (double nu_em, double dsem, double c_ph[8], double c_obj[8]=NULL) const
 Not implemented Throws a Gyoto::Error.
virtual double bolometricEmission (double nuem, double dsem, double c_obj[8]) const
 Bolometric emission.
virtual void processHitQuantities (Photon *ph, double *coord_ph_hit, double *coord_obj_hit, double dt, Astrobj::Properties *data) const
 processHitQuantities fills the requested data in Impact. For PageThorneDisk, only fill User4, which corresponds to bolometric intensity.
Gyoto::Quantity_t getDefaultQuantities ()
 Which quantities to compute if know was requested.
virtual void tell (Gyoto::Hook::Teller *msg)
 Update PageThorneDisk::aa_.
virtual double innerRadius () const
 Get rin_.
virtual double innerRadius (std::string const &) const
 Get rin_.
virtual void innerRadius (double)
 Set rin_.
virtual void innerRadius (double, std::string const &)
 Set rin_.
virtual double outerRadius () const
 Get rout_.
virtual double outerRadius (std::string const &) const
 Get rout_.
virtual void outerRadius (double)
 Set rout_.
virtual void outerRadius (double, std::string const &)
 Set rout_.
virtual double thickness () const
 Get thickness_.
virtual double thickness (std::string const &) const
 Get thickness_.
virtual void thickness (double)
 Set thickness_.
virtual void thickness (double, std::string const &)
 Set thickness_.
virtual int dir () const
 Get dir_.
virtual void dir (int)
 Set dir_.
virtual bool corotating () const
virtual void corotating (bool t)
 Get dir_==1.
virtual double operator() (double const coord[])
 Set dir_=t?1:-1.
virtual double projectedRadius (double const coord[]) const
 Projected radius of position coord on the equatorial plane.
virtual double sphericalPhi (double const coord[]) const
 Longitude.
virtual void getVelocity (double const pos[4], double vel[4])
 Get fluid 4-velocity at point.
virtual int Impact (Gyoto::Photon *ph, size_t index, Astrobj::Properties *data=NULL)
 Does a photon at these coordinates impact the object?
virtual SmartPointer
< Metric::Generic
metric () const
 Get the Metric gg_.
virtual double rMax ()
 Get maximal distance from center of coordinate system.
virtual double rMax () const
 Get maximal distance from center of coordinate system.
virtual double rMax (std::string const &unit)
 Get rmax_ is specified unit.
virtual double rMax (std::string const &unit) const
 Get rmax_ is specified unit.
virtual void rMax (double val)
 Set maximal distance from center of coordinate system.
virtual void rMax (double val, std::string const &unit)
 Set maximal distance from center of coordinate system.
virtual double deltaMax (double coord[8])
 Get max step constraint for adaptive integration.
const std::string kind () const
 Get the kind of the Astrobj (e.g. "Star").
void opticallyThin (bool flag)
 Set whether the object is optically thin.
bool opticallyThin () const
 Query whether object is optically thin.
void radiativeQ (bool flag)
bool radiativeQ () const
virtual void radiativeQ (double Inu[], double Taunu[], double nu_em[], size_t nbnu, double dsem, double coord_ph[8], double coord_obj[8]=NULL) const
void showshadow (bool flag)
bool showshadow () const
void redshift (bool flag)
bool redshift () const
virtual void setParameters (FactoryMessenger *fmp)
 Main loop in Subcontractor_t function.
virtual void emission (double Inu[], double nu_em[], size_t nbnu, double dsem, double coord_ph[8], double coord_obj[8]=NULL) const
 Specific intensity I for several values of em.
virtual double integrateEmission (double nu1, double nu2, double dsem, double c_ph[8], double c_obj[8]=NULL) const
 12 I d (or j)
virtual void integrateEmission (double *I, double const *boundaries, size_t const *chaninds, size_t nbnu, double dsem, double *cph, double *co) const
 12 I d (or j)
virtual double transmission (double nuem, double dsem, double coord[8]) const
 Transmission: exp( * dsem ).
void incRefCount ()
 Increment the reference counter. Warning: Don't mess with the counter.
int decRefCount ()
 Decrement the reference counter and return current value. Warning: Don't mess with the counter.
int getRefCount ()
 Get the current number of references.
virtual bool isThreadSafe () const
 Whether this class is thread-safe.
void set (Property const &p, Value val)
 Set Value of a Property.
void set (Property const &p, Value val, std::string const &unit)
 Set Value (expressed in unit) of a Property.
void set (std::string const &pname, Value val)
 Set Value of a Property.
void set (std::string const &pname, Value val, std::string const &unit)
 Set Value (expressed in unit) of a Property.
Value get (Property const &p) const
 Get Value of a Property.
Value get (std::string const &pname) const
 Get Value of a Property.
Value get (Property const &p, std::string const &unit) const
 Get Value of a Property, converted to unit.
Value get (std::string const &pname, std::string const &unit) const
 Get Value of a Property, converted to unit.
Property const * property (std::string const pname) const
 Find property by name.
virtual void fillProperty (Gyoto::FactoryMessenger *fmp, Property const &p) const
 Output a single Property to XML.
virtual void fillElement (Gyoto::FactoryMessenger *fmp) const
 Fill the XML element for this Object.
virtual int setParameter (std::string name, std::string content, std::string unit)
 Set parameter by name.
virtual void setParameter (Gyoto::Property const &p, std::string const &name, std::string const &content, std::string const &unit)
 Set parameter by Property (and name).
std::string describeProperty (Gyoto::Property const &p) const
 Format desrciption for a property.
void help () const
 Print (to stdout) some help on this class.

Public Attributes

 GYOTO_OBJECT_THREAD_SAFETY

Static Public Attributes

static GYOTO_OBJECT Property const properties []
 Property list.

Protected Attributes

double rin_
 disk inner radius in geometrical units
double rout_
 disk outer radius in geometrical units
double thickness_
 disk thickness
int dir_
 1 for corotating (default), -1 for counterrotating.
SmartPointer
< Gyoto::Metric::Generic
gg_
 The Metric in this end of the Universe.
double rmax_
 Maximum distance to the center of the coordinate system [geometrical units].
bool flag_radtransf_
 1 if radiative transfer inside Astrobj, else 0
int radiativeq_
 1 to use the new radiativeQ function (under dvp)
int shadow_
 1 to highlight the shadow region in the image
int noredshift_
 1 to impose redshift factor g = 1
std::string kind_
 The "kind" that is output in the XML entity.
std::vector< std::string > plugins_
 The plug-ins that needs to be loaded to access this instance's class.

Private Member Functions

virtual void updateSpin ()
 Get spin from metric, which must be KerrBL or KerrKS.

Private Attributes

double aa_
 Generic::gg_ spin parameter, monitored by tell().
double aa2_
 aa_2
double x0_
 Value cached for bolometricEmission().
double x1_
 Value cached for bolometricEmission().
double x2_
 Value cached for bolometricEmission().
double x3_
 Value cached for bolometricEmission().
int blackbody_
 Flag for computing BB flux (for spectra).
double mdot_
 accretion rate (for BB spectrum computation)
bool uniflux_
 Flag for uniform flux = 1.
SmartPointer< Spectrum::BlackBodyspectrumBB_
 emission law

Friends

class Gyoto::SmartPointer< Gyoto::Astrobj::PageThorneDisk >
class Gyoto::SmartPointer< Gyoto::Astrobj::ThinDisk >
class Gyoto::SmartPointer< Gyoto::Astrobj::Generic >
class Gyoto::Hook::Teller

Detailed Description

Geometrically thin disk in Kerr metric.

This class describes a disk contained in the z=0 (equatorial) plane, extending from r=r_ISCO to r=infinity. The flux emitted at radius r is given by Page & Thorne (1974, ApJ 191:499, Eqs. 11b, 14, 15).

The metric must be either KerrBL or KerrKS. Emission, Spectrum and BinSpectrum are not provide, the only intensity provided is provided, as quantity User4 and it is the default quantity returned if nothing is requested. The other quantities implemented in ThinDisk are also provided.


Member Typedef Documentation

typedef Gyoto::SmartPointer<Gyoto::SmartPointee> Gyoto::SmartPointee::Subcontractor_t(Gyoto::FactoryMessenger *, std::vector< std::string > const &) [inherited]

A subcontractor builds an object upon order from the Factory.

Various classes need to provide a subcontractor to be able to instantiate themselves upon order from the Factory. A subcontractor is a function (often a static member function) which accepts a pointer to a FactoryMessenger as unique parameter, communicates with the Factory using this messenger to read an XML description of the object to build, and returns this objet. SmartPointee::Subcontractor_t* is just generic enough a typedef to cast to and from other subcontractor types: Astrobj::Subcontractor_t, Metric::Subcontractor_t, Spectrum::Subcontractor_t. A subcontractor needs to be registered using the relevant Register() function: Astrobj::Register(), Metric::Register(), Spectrum::Register().


Member Function Documentation

virtual double Gyoto::Astrobj::PageThorneDisk::bolometricEmission ( double  nuem,
double  dsem,
double  c_obj[8] 
) const [virtual]

Bolometric emission.

Similar to Generic::emission(), but bolometric.

virtual double Gyoto::Astrobj::Generic::deltaMax ( double  coord[8]  )  [virtual, inherited]

Get max step constraint for adaptive integration.

Parameters:
[in] coord position
Returns:
max step to find this object reliably

Reimplemented in Gyoto::Astrobj::Complex.

std::string Gyoto::Object::describeProperty ( Gyoto::Property const &  p  )  const [inherited]

Format desrciption for a property.

Returns a string containing the name(s) and type of the property, as well as whether it supports unit.

virtual void Gyoto::Astrobj::Generic::emission ( double  Inu[],
double  nu_em[],
size_t  nbnu,
double  dsem,
double  coord_ph[8],
double  coord_obj[8] = NULL 
) const [virtual, inherited]

Specific intensity I for several values of em.

Called by the default implementation for processHitQuantities().

emission() computes the intensity I emitted by the small volume of length dsem. It should take self-absorption along dsem into account.

Same as emission(double nu_em, double dsem, double coord_ph[8], double coord_obj[8]=NULL) const looping on several values of nu_em.

Parameters:
Inu[nbnu] Output (must be set to a previously allocated array of doubles)
nu_em[nbnu] Frequencies at emission
nbnu Size of Inu[] and nu_em[]
dsem Length over which to integrate inside the object
coord_ph Photon coordinate
coord_obj Emitter coordinate at current photon position
Returns:
I or dI [W m-2 sr-2]

Reimplemented in Gyoto::Astrobj::PolishDoughnut, Gyoto::Astrobj::Python::Standard, and Gyoto::Astrobj::Python::ThinDisk.

virtual void Gyoto::Object::fillElement ( Gyoto::FactoryMessenger fmp  )  const [virtual, inherited]

Fill the XML element for this Object.

The base implementation simply calls fillProperty() for each Property defined for the Object.

Derived classes should avoid overriding fillElement(). It may make sense occasionally, e.g. to make sure that the metric is output first.

To customize how a given Property is rendered, it is better to override fillProperty().

If this method is overridden, the implementation should in general call fillElement() on the direct base.

Reimplemented in Gyoto::Astrobj::Complex, Gyoto::Spectrometer::Complex, and Gyoto::Scenery.

virtual void Gyoto::Object::fillProperty ( Gyoto::FactoryMessenger fmp,
Property const &  p 
) const [virtual, inherited]

Output a single Property to XML.

The base implementation decides what to do based on the p.type. The format matches how setParameters() an setParameter() would interpret the XML descition.

Overriding this method should be avoided, but makes sense in some cases (for instance Screen::fillProperty() selects a different unit for Distance based on its magnitude, so that stellar sizes are expressed in solar radii while smaller sizes can be expressed in meters and larger sizes in parsecs).

Overriding implementation should fall-back on calling the implementation in the direct parent class:

 class A: public Object {};
 class B: public A { 
  using B::setParameter;
  virtual void fillProperty(Gyoto::FactoryMessenger *fmp,
                        Property const &p) const ;
 };
 void B::fillProperty(Gyoto::FactoryMessenger *fmp,
                        Property const &p) const {
   if (name=="Duff") fmp->doSomething();
   else A::fillProperty(fmp, p);
 }

Reimplemented in Gyoto::Astrobj::DirectionalDisk, Gyoto::Astrobj::Disk3D, Gyoto::Astrobj::EquatorialHotSpot, Gyoto::Astrobj::NeutronStarModelAtmosphere, Gyoto::Astrobj::PatternDisk, Gyoto::Astrobj::PolishDoughnut, Gyoto::Scenery, Gyoto::Screen, Gyoto::Astrobj::Star, and Gyoto::Spectrometer::Uniform.

Gyoto::Quantity_t Gyoto::Astrobj::PageThorneDisk::getDefaultQuantities (  )  [virtual]

Which quantities to compute if know was requested.

Return a Gyoto::Quantity_t suitable as input to Gyoto::Scenery::setRequestedQuantities() to set de default quantities to compute for this object. The default of these defaults GYOTO_QUANTITY_INTENSITY.

Reimplemented from Gyoto::Astrobj::Generic.

virtual Property const* Gyoto::Astrobj::PageThorneDisk::getProperties (  )  const [virtual]

Get list of properties.

This method is declared automatically by the GYOTO_OBJECT macro and defined automatically by the GYOTO_PROPERTY_END macro.

Reimplemented from Gyoto::Astrobj::ThinDisk.

virtual void Gyoto::Astrobj::ThinDisk::getVelocity ( double const   pos[4],
double  vel[4] 
) [virtual, inherited]

Get fluid 4-velocity at point.

Fill vel with the 4-vector velocity of the fluid at 4-position pos. getVelocity() should work at some distance from the equatorial plane. The default implementation calls Metric::Generic::circularVelocity().

Parameters:
[in] pos 4-position at which to compute velocity;
[out] vel 4-velocity at pos.

Reimplemented in Gyoto::Astrobj::DynamicalDisk, Gyoto::Astrobj::EquatorialHotSpot, Gyoto::Astrobj::PatternDisk, Gyoto::Astrobj::PatternDiskBB, Gyoto::Astrobj::ThinDiskIronLine, and Gyoto::Astrobj::Python::ThinDisk.

void Gyoto::Object::help (  )  const [inherited]

Print (to stdout) some help on this class.

Describe all properties that this instance supports.

virtual int Gyoto::Astrobj::ThinDisk::Impact ( Gyoto::Photon ph,
size_t  index,
Astrobj::Properties data = NULL 
) [virtual, inherited]

Does a photon at these coordinates impact the object?

Impact() checks whether a Photon impacts the object between two integration steps of the photon's trajectory (those two steps are photon->getCoord(index, coord1) and photon->getCoord(index+1, coord2)). Impact returns 1 if the photon impacts the object between these two steps, else 0. In many cases of geometrically thick obects, the implementation Astrobj::Standard::Impact() will be fine.

Impact will call Generic::processHitQuantities() (which is virtual and may be re-implemented) to compute observable properties on demand: if the data pointer is non-NULL, the object will look in it for pointers to properties which apply to its kind. If a pointer to a property known to this object is present, then the property is computed and store at the pointed-to address. For instance, all objects know the "intensity" property. If data->intensity != NULL, the instensity is computed and stored in *data->intensity.

If data is non-NULL and only in this case, processHitQuantities() will also call ph->transmit() to update the transmissions of the Photon (see Photon::transmit(size_t, double)). This must not be done if data is NULL (see Astrobj::Complex::Impact() for an explanation).

Impact() may not extend the ph Worldline. The only two dates that are guaranteed to be defined are at indices index and index+1.

Parameters:
ph Gyoto::Photon aimed at the object;
index Index of the last photon step;
data Pointer to a structure to hold the observables at impact.
Returns:
1 if impact, 0 if not.

Implements Gyoto::Astrobj::Generic.

virtual void Gyoto::Astrobj::Generic::integrateEmission ( double *  I,
double const *  boundaries,
size_t const *  chaninds,
size_t  nbnu,
double  dsem,
double *  cph,
double *  co 
) const [virtual, inherited]

12 I d (or j)

Like double integrateEmission(double nu1, double nu2, double dsem, double c_ph[8], double c_obj[8]) const for each Spectrometer channel.

Reimplemented in Gyoto::Astrobj::Python::Standard, and Gyoto::Astrobj::Python::ThinDisk.

virtual double Gyoto::Astrobj::Generic::integrateEmission ( double  nu1,
double  nu2,
double  dsem,
double  c_ph[8],
double  c_obj[8] = NULL 
) const [virtual, inherited]

12 I d (or j)

Compute the integral of emission() from 1 to 2. The default implementation is a numerical integrator which works well enough and is reasonably fast if emission() is a smooth function (i.e. no emission or absorption lines). If possible, it is wise to implement an analytical solution. It is used by processHitQuantities to compute the "BinSpectrum" quantity which is the most physical: it is the only quantity that can be actually measured directly by a real-life instrument.

Reimplemented in Gyoto::Astrobj::Torus, Gyoto::Astrobj::UniformSphere, Gyoto::Astrobj::Python::Standard, and Gyoto::Astrobj::Python::ThinDisk.

virtual bool Gyoto::Object::isThreadSafe (  )  const [virtual, inherited]

Whether this class is thread-safe.

Return True if this object is thread-safe, i.e. if an instance and its clone can be used in parallel threads (in the context of Scenery::raytrace()). Known objects which are not thread-safe include Lorene metrics and everything from the Python plug-in.

The default implementation considers that the class itself is thread safe and recurses into the declared properties to check whether they are safe too. Classes that abide to the Object/Property paradigm and are themselves thread-safe have nothing special to do.

Objects that clone children in their copy constructor that are not declared as properties must take these children into account.

Classes that are never thread-safe must declare it. It acn be easily done using GYOTO_OBJECT_THREAD_SAFETY in the class declaration and GYOTO_PROPERTY_THREAD_UNSAFE in the class definition.

virtual double Gyoto::Astrobj::ThinDisk::operator() ( double const   coord[]  )  [virtual, inherited]

Set dir_=t?1:-1.

A function which changes sign on the equatorial plane. theta-pi/2 or z

Implements Gyoto::Functor::Double_constDoubleArray.

bool Gyoto::Astrobj::Generic::opticallyThin (  )  const [inherited]

Query whether object is optically thin.

See opticallyThin(bool flag).

void Gyoto::Astrobj::Generic::opticallyThin ( bool  flag  )  [inherited]

Set whether the object is optically thin.

Set flag indicating that radiative transfer should be integrated, i.e. the object is to be considered optically thin.

Parameters:
flag,: 1 if optically thin, 0 if optically thick.
Property const* Gyoto::Object::property ( std::string const   pname  )  const [inherited]

Find property by name.

Look into the Property list for a Property whose name (or name_false, for a boolean Property) is pname. Return a const pointer to the first such property found, or NULL if none is found.

virtual void Gyoto::Astrobj::Generic::rMax ( double  val,
std::string const &  unit 
) [virtual, inherited]

Set maximal distance from center of coordinate system.

Call Generic::rMax(double val) after converting val from unit to geometrical units.

Parameters:
val rmax_ expressed in unit "unit";
unit string...
virtual void Gyoto::Astrobj::Generic::rMax ( double  val  )  [virtual, inherited]

Set maximal distance from center of coordinate system.

Set maximal distance from center of coordinate system at which a Photon may hit the object.

Parameters:
val new rmax_ in geometrical units.
virtual double Gyoto::Astrobj::Generic::rMax ( std::string const &  unit  )  [virtual, inherited]

Get rmax_ is specified unit.

Call rMax() and convert result to unit.

Parameters:
unit string
Returns:
double rmax converted to unit
virtual double Gyoto::Astrobj::Generic::rMax (  )  [virtual, inherited]

Get maximal distance from center of coordinate system.

Get maximal distance from center of coordinate system at which a Photon may hit the object.

Child classes may use the rmax_ member to cache this value, if its current value is DBL_MAX.

It can also be set using rMax().

Returns:
rmax_ in geometrical units

Reimplemented in Gyoto::Astrobj::FixedStar, Gyoto::Astrobj::Star, and Gyoto::Astrobj::Torus.

virtual void Gyoto::Object::setParameter ( Gyoto::Property const &  p,
std::string const &  name,
std::string const &  content,
std::string const &  unit 
) [virtual, inherited]

Set parameter by Property (and name).

This function is used when parsing an XML description, if Property (p) of this name is found (i.e. either p.name or p.name_false is equal to name). Implementation should fall-back on calling the direct's parent implementation:

 class A: public Object {};
 class B: public A { 
  using B::setParameter;
  virtual void setParameter(Gyoto::Property const &p,
                            std::string name,
                                std::string content,
                                std::string unit);
 };
 void B::setParameter(Gyoto::Property const &p,
                          std::string name,
                          std::string content,
                          std::string unit) {
   if (name=="Duff") doSomething(content, unit);
   else A::setParameter(p, name, content, unit);
 }
Parameters:
p Property that matches name (p.name == name or p.name_false == name)
name XML name of the parameter (XML entity)
content string representation of the value
unit string representation of the unit

Reimplemented in Gyoto::Astrobj::PolishDoughnut.

virtual int Gyoto::Object::setParameter ( std::string  name,
std::string  content,
std::string  unit 
) [virtual, inherited]

Set parameter by name.

This function is used when parsing an XML description, if no Property of this name is found. Overriding implementation should fall-back on calling the direct's parent implementation:

 class A: public Object {};
 class B: public A { 
  using B::setParameter;
  virtual int setParameter(std::string name,
                            std::string content,
                            std::string unit);
 };
 int B::setParameter(std::string name,
                            std::string content,
                            std::string unit) {
   if (name=="Duff") doSomething(content, unit);
   else return A::setParameter(name, content, unit);
   return 0;  // name was known
 }
Parameters:
name XML name of the parameter (XML entity). This may have a path component, e.g. "Astrobj::Radius", in which case a property named "Astrobj" will be sought in the current object, and setParameter will be called recusrively on this Astrobj with Radius as name.
content string representation of the value
unit string representation of the unit
Returns:
0 if this parameter is known, 1 if it is not.

Reimplemented in Gyoto::Astrobj::EquatorialHotSpot, Gyoto::Metric::KerrKS, Gyoto::Metric::RotStar3_1, and Gyoto::Astrobj::Star.

virtual void Gyoto::Astrobj::Generic::setParameters ( FactoryMessenger fmp  )  [virtual, inherited]

Main loop in Subcontractor_t function.

The Subcontractor_t function for each Astrobj kind should look somewhat like this (templated as Gyoto::Astrobj::Subcontractor<MyKind>):

 SmartPointer<Astrobj::Generic>
 Gyoto::Astrobj::MyKind::Subcontractor(FactoryMessenger* fmp) {
   SmartPointer<MyKind> ao = new MyKind();
   ao -> setParameters(fmp);
   return ao;
 }

Each object kind should implement setParameter(string name, string content, string unit) to interpret the individual XML elements. setParameters() can be overloaded in case the specific Astrobj class needs low level access to the FactoryMessenger. See UniformSphere::setParameters().

Reimplemented from Gyoto::Object.

Reimplemented in Gyoto::Astrobj::Complex, Gyoto::Astrobj::EquatorialHotSpot, Gyoto::Astrobj::OscilTorus, and Gyoto::Astrobj::Star.

virtual void Gyoto::Astrobj::PageThorneDisk::tell ( Gyoto::Hook::Teller msg  )  [virtual]
virtual double Gyoto::Astrobj::Generic::transmission ( double  nuem,
double  dsem,
double  coord[8] 
) const [virtual, inherited]

Transmission: exp( * dsem ).

transmission() computes the transmission of this fluid element or 0 if optically thick. The default implementation returns 1. (no attenuation) if optically thin, 0. if optically thick.

Parameters:
nuem frequency in the fluid's frame
coord Photon coordinate
dsem geometrical length in geometrical units

Reimplemented in Gyoto::Astrobj::DynamicalDisk3D, Gyoto::Astrobj::PatternDisk, Gyoto::Astrobj::PolishDoughnut, Gyoto::Astrobj::Torus, Gyoto::Astrobj::Python::Standard, and Gyoto::Astrobj::Python::ThinDisk.


Member Data Documentation

std::string Gyoto::Object::kind_ [protected, inherited]

The "kind" that is output in the XML entity.

E.g. for an Astrobj, fillElement() will ensure

   <Astrobj kind="kind_" ...>...</Astrobj>

is written.

std::vector<std::string> Gyoto::Object::plugins_ [protected, inherited]

The plug-ins that needs to be loaded to access this instance's class.

E.g. for an Astrobj, fillElement() will ensure

   <Astrobj ... plugin="plugins_">...</Astrobj>

is written.

Property list.

This static member is declared automatically by the GYOTO_OBJECT macro and defined automatically by the GYOTO_PROPERTY_START, GYOTO_PROPERTY_END and GYOTO_PROPERTY_* macros.

The list of properties is implemented as a static array of Property instances. The last item in a Property of type Property::empty_t, which evaluates to false, so the list can be considered to be NULL-terminated (it is actually rather false-terminated). This empty_t last item can be a link to another Property list: for instance, the last item in Gyoto::Astrobj::Standard::properties is a link to Gyoto::Astrobj::Generic::properties.

Reimplemented from Gyoto::Astrobj::ThinDisk.

double Gyoto::Astrobj::Generic::rmax_ [protected, inherited]

Maximum distance to the center of the coordinate system [geometrical units].

Maximum distance from the center of the coordinate system at which a photon may hit the object. Child classes may compute a decent value for rmax_ at any time if rmax_ is DBL_MAX. External classes (Photons in particular) must use rMax() to access this information.

rmax_ is in geometrical units.

emission law

disk black body

double Gyoto::Astrobj::ThinDisk::thickness_ [protected, inherited]

disk thickness

Geometrical thickness in geometrical units. Used only in the optically thin regime (flag_radtransf_==1). Should be << rin_. Default: 1e-3.


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

Generated on 22 Jul 2017 for Gyoto by  doxygen 1.6.1