Function object for the probability density function of photon emission from EM-shower as a function of the index of refraction and the cosine of the emission angle. More...

#include <JGeant.hh>

Inheritance diagram for JPHYSICS::JGeant:

Public Types
typedef JGridCollection< JElement2D< double, double >, JDistance< typename JElement_t::abscissa_type > >	collection_type

typedef collection_type::abscissa_type	abscissa_type

typedef collection_type::ordinate_type	ordinate_type

typedef collection_type::value_type	value_type

typedef collection_type::distance_type	distance_type

typedef collection_type::const_iterator	const_iterator

typedef collection_type::const_reverse_iterator	const_reverse_iterator

typedef collection_type::iterator	iterator

typedef collection_type::reverse_iterator	reverse_iterator

typedef JFunction1D< abscissa_type, double >	function_type

typedef function_type::argument_type	argument_type

typedef function_type::result_type	result_type

typedef function_type::JExceptionHandler	exceptionhandler_type

enum	{ NUMBER_OF_DIMENSIONS = 1 }

typedef JFunctional< JArgument_t, JResult_t >	functional_type

typedef functional_type::JExceptionHandler	JExceptionHandler

typedef JSupervisor	supervisor_type

Public Member Functions
	JGeant ()
	Default constructor.

	JGeant (const JGeanx &geanx, const double dx=0.0001)
	Constructor.

double	operator() (const double n, const double ct) const
	Number of photons from EM-shower as a function of emission angle.

double	operator() (const double n, const double xmin, const double xmax) const
	Integral number of photons from EM-shower between two emission angles.

result_type	operator() (const argument_type x) const
	Function value evaluation.

const JSupervisor &	getSupervisor () const
	Get supervisor.

const JExceptionHandler &	getExceptionHandler () const override
	Get exception handler.

void	setExceptionHandler (const JSupervisor &supervisor)
	Set the supervisor for handling of exceptions.

virtual result_type	evaluate (const argument_type *pX) const =0
	Recursive function value evaluation.

Static Public Member Functions
static result_type	getValue (const JFunctional &function, const argument_type *pX)
	Recursive function value evaluation.

static JClass< result_type >::argument_type	getValue (typename JClass< result_type >::argument_type value, const argument_type *pX)
	Termination of recursive function value evaluation.

Protected Member Functions
virtual void	do_compile () override
	Function compilation.

Protected Attributes
double	a0
	offset of the normalisation dependence

double	a1
	slope of the normalisation dependence

JGeantFunction1D_t	buffer

JSupervisor	__supervisor

Detailed Description

Function object for the probability density function of photon emission from EM-shower as a function of the index of refraction and the cosine of the emission angle.

Definition at line 30 of file JGeant.hh.

Member Typedef Documentation

◆ collection_type

typedef JGridCollection <JElement2D< double, double > , JDistance<typename JElement_t::abscissa_type> > JTOOLS::JPolintFunction1D< N, JElement2D< double, double > , JGridCollection , double , JDistance<typename JElement_t::abscissa_type> >::collection_type

inherited

Definition at line 1098 of file JPolint.hh.

◆ abscissa_type

typedef collection_type::abscissa_type JTOOLS::JPolintFunction1D< N, JElement2D< double, double > , JGridCollection , double , JDistance<typename JElement_t::abscissa_type> >::abscissa_type

inherited

Definition at line 1100 of file JPolint.hh.

◆ ordinate_type

typedef collection_type::ordinate_type JTOOLS::JPolintFunction1D< N, JElement2D< double, double > , JGridCollection , double , JDistance<typename JElement_t::abscissa_type> >::ordinate_type

inherited

Definition at line 1101 of file JPolint.hh.

◆ value_type

typedef collection_type::value_type JTOOLS::JPolintFunction1D< N, JElement2D< double, double > , JGridCollection , double , JDistance<typename JElement_t::abscissa_type> >::value_type

inherited

Definition at line 1102 of file JPolint.hh.

◆ distance_type

typedef collection_type::distance_type JTOOLS::JPolintFunction1D< N, JElement2D< double, double > , JGridCollection , double , JDistance<typename JElement_t::abscissa_type> >::distance_type

inherited

Definition at line 1103 of file JPolint.hh.

◆ const_iterator

typedef collection_type::const_iterator JTOOLS::JPolintFunction1D< N, JElement2D< double, double > , JGridCollection , double , JDistance<typename JElement_t::abscissa_type> >::const_iterator

inherited

Definition at line 1105 of file JPolint.hh.

◆ const_reverse_iterator

typedef collection_type::const_reverse_iterator JTOOLS::JPolintFunction1D< N, JElement2D< double, double > , JGridCollection , double , JDistance<typename JElement_t::abscissa_type> >::const_reverse_iterator

inherited

Definition at line 1106 of file JPolint.hh.

◆ iterator

typedef collection_type::iterator JTOOLS::JPolintFunction1D< N, JElement2D< double, double > , JGridCollection , double , JDistance<typename JElement_t::abscissa_type> >::iterator

inherited

Definition at line 1107 of file JPolint.hh.

◆ reverse_iterator

typedef collection_type::reverse_iterator JTOOLS::JPolintFunction1D< N, JElement2D< double, double > , JGridCollection , double , JDistance<typename JElement_t::abscissa_type> >::reverse_iterator

inherited

Definition at line 1108 of file JPolint.hh.

◆ function_type

typedef JFunction1D<abscissa_type, double > JTOOLS::JPolintFunction1D< N, JElement2D< double, double > , JGridCollection , double , JDistance<typename JElement_t::abscissa_type> >::function_type

inherited

Definition at line 1110 of file JPolint.hh.

◆ argument_type

typedef function_type::argument_type JTOOLS::JPolintFunction1D< N, JElement2D< double, double > , JGridCollection , double , JDistance<typename JElement_t::abscissa_type> >::argument_type

inherited

Definition at line 1112 of file JPolint.hh.

◆ result_type

typedef function_type::result_type JTOOLS::JPolintFunction1D< N, JElement2D< double, double > , JGridCollection , double , JDistance<typename JElement_t::abscissa_type> >::result_type

inherited

Definition at line 1113 of file JPolint.hh.

◆ exceptionhandler_type

typedef function_type::JExceptionHandler JTOOLS::JPolintFunction1D< N, JElement2D< double, double > , JGridCollection , double , JDistance<typename JElement_t::abscissa_type> >::exceptionhandler_type

inherited

Definition at line 1114 of file JPolint.hh.

◆ functional_type

template<class JArgument_t , class JResult_t >

typedef JFunctional<JArgument_t, JResult_t> JTOOLS::JFunction1D< JArgument_t, JResult_t >::functional_type

inherited

Definition at line 332 of file JFunctional.hh.

◆ JExceptionHandler

template<class JArgument_t , class JResult_t >

typedef functional_type::JExceptionHandler JTOOLS::JFunction< JArgument_t, JResult_t >::JExceptionHandler

inherited

Definition at line 235 of file JFunctional.hh.

◆ supervisor_type

template<class JArgument_t , class JResult_t >

typedef JSupervisor JTOOLS::JFunction< JArgument_t, JResult_t >::supervisor_type

inherited

Definition at line 237 of file JFunctional.hh.

Member Enumeration Documentation

◆ anonymous enum

template<class JArgument_t , class JResult_t >

anonymous enum

inherited

Enumerator
NUMBER_OF_DIMENSIONS

Definition at line 330 of file JFunctional.hh.

330{ NUMBER_OF_DIMENSIONS = 1 };

JTOOLS::JFunction1D::NUMBER_OF_DIMENSIONS

@ NUMBER_OF_DIMENSIONS

Definition JFunctional.hh:330

Constructor & Destructor Documentation

◆ JGeant() [1/2]

JPHYSICS::JGeant::JGeant ( )

inline

Default constructor.

Definition at line 37 of file JGeant.hh.

38 {}

◆ JGeant() [2/2]

JPHYSICS::JGeant::JGeant	(	const JGeanx &	geanx,
		const double	dx = 0.0001 )

inline

Constructor.

Parameters

geanx	PDF of EM-shower
dx	step size for interpolation of function values

Definition at line 47 of file JGeant.hh.

    {
      using JTOOLS::PI;
 
      const double n0 = geanx.n - 0.02;
      const double n1 = geanx.n + 0.02;
 
      const JGeanx g0(geanx.a, geanx.b, n0);
      const JGeanx g1(geanx.a, geanx.b, n1);
 
      const double y0 = g0.evaluate(-1.0, +1.0);
      const double y1 = g1.evaluate(-1.0, +1.0);
 
      const double c  = 1.0 / (y0 * 2*PI);
 
      // following range corresponds to n = 1 to n = infinity
 
      for (double x = -2.0; x < 1.0; x += dx) {
        (*this)[x] = c * g0.evaluate(x + 1.0/n0);
      }
 
      this->compile();
 
      // linear approximation of dependence normalisation constant on index of refraction
      
      this->a1 = (y1 - y0) / y0 / (n1 - n0);
      this->a0 = 1.0 + a1*n0;
    }

Member Function Documentation

◆ operator()() [1/3]

double JPHYSICS::JGeant_t::operator()	(	const double	n,
		const double	ct ) const

inlineinherited

Number of photons from EM-shower as a function of emission angle.

The integral over full solid angle is normalised to one.

Parameters

n	index of refraction
ct	cosine angle of emmision

Returns: d^2P/dcos()dphi

Definition at line 51 of file JGeant_t.hh.

    {
      const double y = JGeantFunction1D_t::operator()(ct - 1.0/n);
 
      return y * (a0 - a1*n);
    }

◆ operator()() [2/3]

double JPHYSICS::JGeant_t::operator()	(	const double	n,
		const double	xmin,
		const double	xmax ) const

inlineinherited

Integral number of photons from EM-shower between two emission angles.

The integral over full solid angle is normalised to one.

Parameters

n	index of refraction
xmin	minimal cosine angle of emmision
xmax	maximal cosine angle of emmision

Returns: dnpe/dphi

Definition at line 69 of file JGeant_t.hh.

    {
      const double x_min = std::max(xmin - 1.0/n, buffer. begin()->getX());
      const double x_max = std::min(xmax - 1.0/n, buffer.rbegin()->getX());
 
      const double y = buffer(x_max) - buffer(x_min);
 
      return y * (a0 - a1*n);
    }

◆ operator()() [3/3]

template<class JArgument_t , class JResult_t >

result_type JTOOLS::JFunction1D< JArgument_t, JResult_t >::operator() ( const argument_type x ) const

inlineinherited

Function value evaluation.

Parameters

x	argument value

Returns: function value

Definition at line 343 of file JFunctional.hh.

    {
      return this->evaluate(&x);
    }

◆ do_compile()

virtual void JPHYSICS::JGeant_t::do_compile ( )

inlineoverrideprotectedvirtualinherited

Function compilation.

Definition at line 122 of file JGeant_t.hh.

    {
      JGeantFunction1D_t::do_compile();
 
      buffer.clear();
 
      JTOOLS::integrate(*this, buffer);
 
      buffer.compile();
    }

◆ getSupervisor()

template<class JArgument_t , class JResult_t >

const JSupervisor & JTOOLS::JFunction< JArgument_t, JResult_t >::getSupervisor ( ) const

inlineinherited

Get supervisor.

Returns: supervisor

Definition at line 290 of file JFunctional.hh.

    {
      return __supervisor;
    }

◆ getExceptionHandler()

template<class JArgument_t , class JResult_t >

const JExceptionHandler & JTOOLS::JFunction< JArgument_t, JResult_t >::getExceptionHandler ( ) const

inlineoverridevirtualinherited

Get exception handler.

Returns: exception handler

Implements JTOOLS::JFunctional< JArgument_t, JResult_t >.

Definition at line 301 of file JFunctional.hh.

    {
      return *__supervisor.handler;
    }

◆ setExceptionHandler()

template<class JArgument_t , class JResult_t >

void JTOOLS::JFunction< JArgument_t, JResult_t >::setExceptionHandler ( const JSupervisor & supervisor )

inlineinherited

Set the supervisor for handling of exceptions.

Parameters

supervisor supervisor

Definition at line 312 of file JFunctional.hh.

    {
      this->__supervisor = supervisor;
    }

◆ evaluate()

template<class JArgument_t , class JResult_t >

virtual result_type JTOOLS::JFunctional< JArgument_t, JResult_t >::evaluate ( const argument_type * pX ) const

pure virtualinherited

Recursive function value evaluation.

Parameters

pX	pointer to abscissa values

Returns: function value

Implemented in JTOOLS::JConstantFunction1D< JArgument_t, JResult_t >, JTOOLS::JExternalFunction1D< JArgument_t, JResult_t >, JTOOLS::JFunctionObject1D< JArgument_t, JResult_t >, JTOOLS::JHermiteSplineFunction< JElement_t, JCollection_t, typename JResultType< typename JElement_t::ordinate_type >::result_type, JDistance_t >, JTOOLS::JHermiteSplineFunction< JElement_t, JCollection_t, JResultDerivative< typename JResultType< typename JElement_t::ordinate_type >::result_type >, JDistance_t >, JTOOLS::JHermiteSplineFunction< JElement_t, JCollection_t, JResultPDF< typename JResultType< typename JElement_t::ordinate_type >::result_type >, JDistance_t >, JTOOLS::JSplineFunction< JElement_t, JCollection_t, typename JResultType< typename JElement_t::ordinate_type >::result_type, JDistance_t >, JTOOLS::JSplineFunction< JElement_t, JCollection_t, JResultDerivative< typename JResultType< typename JElement_t::ordinate_type >::result_type >, JDistance_t >, and JTOOLS::JSplineFunction< JElement_t, JCollection_t, JResultPDF< typename JResultType< typename JElement_t::ordinate_type >::result_type >, JDistance_t >.

◆ getValue() [1/2]

template<class JArgument_t , class JResult_t >

static result_type JTOOLS::JFunctional< JArgument_t, JResult_t >::getValue	(	const JFunctional< JArgument_t, JResult_t > &	function,
		const argument_type *	pX )

inlinestaticinherited

Recursive function value evaluation.

Parameters

function	function
pX	pointer to abscissa values

Definition at line 103 of file JFunctional.hh.

    {
      return function.evaluate(pX);
    }

◆ getValue() [2/2]

template<class JArgument_t , class JResult_t >

static JClass< result_type >::argument_type JTOOLS::JFunctional< JArgument_t, JResult_t >::getValue	(	typename JClass< result_type >::argument_type	value,
		const argument_type *	pX )

inlinestaticinherited

Termination of recursive function value evaluation.

Parameters

value	result
pX	pointer to abscissa values

Definition at line 117 of file JFunctional.hh.

    {
      return value;
    }

Member Data Documentation

◆ a0

double JPHYSICS::JGeant_t::a0

protectedinherited

offset of the normalisation dependence

Definition at line 134 of file JGeant_t.hh.

◆ a1

double JPHYSICS::JGeant_t::a1

protectedinherited

slope of the normalisation dependence

Definition at line 135 of file JGeant_t.hh.

◆ buffer

JGeantFunction1D_t JPHYSICS::JGeant_t::buffer

protectedinherited

Definition at line 136 of file JGeant_t.hh.

◆ __supervisor

template<class JArgument_t , class JResult_t >

JSupervisor JTOOLS::JFunction< JArgument_t, JResult_t >::__supervisor

protectedinherited

Definition at line 318 of file JFunctional.hh.

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

JGeant.hh

Public Types

Public Member Functions

Static Public Member Functions

Protected Member Functions

Protected Attributes

Detailed Description

Member Typedef Documentation

◆ collection_type

◆ abscissa_type

◆ ordinate_type

◆ value_type

◆ distance_type

◆ const_iterator

◆ const_reverse_iterator

◆ iterator

◆ reverse_iterator

◆ function_type

◆ argument_type

◆ result_type

◆ exceptionhandler_type

◆ functional_type

◆ JExceptionHandler

◆ supervisor_type

Member Enumeration Documentation

◆ anonymous enum

Constructor & Destructor Documentation

◆ JGeant() [1/2]

◆ JGeant() [2/2]

Member Function Documentation

◆ operator()() [1/3]

◆ operator()() [2/3]

◆ operator()() [3/3]

◆ do_compile()

◆ getSupervisor()

◆ getExceptionHandler()

◆ setExceptionHandler()

◆ evaluate()

◆ getValue() [1/2]

◆ getValue() [2/2]

Member Data Documentation

◆ a0

◆ a1

◆ buffer

◆ __supervisor