EvtDalitzFlatPdf Class Reference

#include <EvtDalitzFlatPdf.hh>

Inheritance diagram for EvtDalitzFlatPdf:

Public Member Functions
	EvtDalitzFlatPdf (const EvtDalitzPlot &dp)
	EvtDalitzFlatPdf (const EvtDalitzFlatPdf &other)
virtual	~EvtDalitzFlatPdf ()
virtual EvtPdf< EvtDalitzPoint > *	clone () const
virtual EvtValError	compute_integral (int N) const
virtual EvtDalitzPoint	randomPoint ()
	EvtDalitzFlatPdf (const EvtDalitzPlot &dp)
	EvtDalitzFlatPdf (const EvtDalitzFlatPdf &other)
virtual	~EvtDalitzFlatPdf ()
virtual EvtPdf< EvtDalitzPoint > *	clone () const
virtual EvtValError	compute_integral (int N) const
virtual EvtDalitzPoint	randomPoint ()
Public Member Functions inherited from EvtPdf< EvtDalitzPoint >
	EvtPdf ()
	EvtPdf (const EvtPdf &other)
	EvtPdf ()
	EvtPdf (const EvtPdf &other)
virtual	~EvtPdf ()
virtual	~EvtPdf ()
virtual EvtPdf< EvtDalitzPoint > *	clone () const=0
virtual EvtPdf< EvtDalitzPoint > *	clone () const=0
double	evaluate (const EvtDalitzPoint &p) const
double	evaluate (const EvtDalitzPoint &p) const
EvtPdfMax< EvtDalitzPoint >	findMax (const EvtPdf< EvtDalitzPoint > &pc, int N)
EvtPdfMax< EvtDalitzPoint >	findMax (const EvtPdf< EvtDalitzPoint > &pc, int N)
EvtValError	findGenEff (const EvtPdf< EvtDalitzPoint > &pc, int N, int nFindMax)
EvtValError	findGenEff (const EvtPdf< EvtDalitzPoint > &pc, int N, int nFindMax)
void	setItg (EvtValError itg)
void	setItg (EvtValError itg)
EvtValError	getItg () const
EvtValError	getItg (int N) const
EvtValError	getItg () const
EvtValError	getItg (int N) const
virtual EvtValError	compute_integral () const
virtual EvtValError	compute_integral (int N) const
virtual EvtValError	compute_integral () const
virtual EvtValError	compute_integral (int N) const
EvtValError	compute_mc_integral (const EvtPdf< EvtDalitzPoint > &pc, int N)
EvtValError	compute_mc_integral (const EvtPdf< EvtDalitzPoint > &pc, int N)
EvtPredGen< EvtPdfGen< EvtDalitzPoint >, EvtPdfPred< EvtDalitzPoint > >	accRejGen (const EvtPdf< EvtDalitzPoint > &pc, int nMax, double factor=1.)
EvtPredGen< EvtPdfGen< EvtDalitzPoint >, EvtPdfPred< EvtDalitzPoint > >	accRejGen (const EvtPdf< EvtDalitzPoint > &pc, int nMax, double factor=1.)
virtual EvtDalitzPoint	randomPoint ()
virtual EvtDalitzPoint	randomPoint ()

Protected Member Functions
virtual double	pdf (const EvtDalitzPoint &) const
virtual double	pdf (const EvtDalitzPoint &) const
virtual double	pdf (const EvtDalitzPoint &) const=0
virtual double	pdf (const EvtDalitzPoint &) const=0

Protected Attributes
EvtDalitzPlot	_dp
Protected Attributes inherited from EvtPdf< EvtDalitzPoint >
EvtValError	_itg

Detailed Description

Definition at line 22 of file bak-BesEvtGen-00-04-08/src/EvtGen/EvtGenBase/EvtDalitzFlatPdf.hh.

Constructor & Destructor Documentation

EvtDalitzFlatPdf() [1/4]

EvtDalitzFlatPdf::EvtDalitzFlatPdf

(

const EvtDalitzPlot &

dp

)

Definition at line 14 of file bak-BesEvtGen-00-04-08/src/EvtGen/EvtGenBase/EvtDalitzFlatPdf.cc.

  : EvtPdf<EvtDalitzPoint>(), _dp(dp)
{}

EvtDalitzFlatPdf() [2/4]

EvtDalitzFlatPdf::EvtDalitzFlatPdf

(

const EvtDalitzFlatPdf &

other

)

Definition at line 18 of file bak-BesEvtGen-00-04-08/src/EvtGen/EvtGenBase/EvtDalitzFlatPdf.cc.

  : EvtPdf<EvtDalitzPoint>(other), _dp(other._dp)
{}

~EvtDalitzFlatPdf() [1/2]

EvtDalitzFlatPdf::~EvtDalitzFlatPdf ( )

virtual

Definition at line 22 of file bak-BesEvtGen-00-04-08/src/EvtGen/EvtGenBase/EvtDalitzFlatPdf.cc.

{}

EvtDalitzFlatPdf() [3/4]

EvtDalitzFlatPdf::EvtDalitzFlatPdf

(

const EvtDalitzPlot &

dp

)

EvtDalitzFlatPdf() [4/4]

EvtDalitzFlatPdf::EvtDalitzFlatPdf

(

const EvtDalitzFlatPdf &

other

)

~EvtDalitzFlatPdf() [2/2]

virtual EvtDalitzFlatPdf::~EvtDalitzFlatPdf ( )

virtual

Member Function Documentation

clone() [1/2]

EvtPdf< EvtDalitzPoint > * EvtDalitzFlatPdf::clone ( ) const

virtual

Implements EvtPdf< EvtDalitzPoint >.

Definition at line 25 of file bak-BesEvtGen-00-04-08/src/EvtGen/EvtGenBase/EvtDalitzFlatPdf.cc.

{
  return new EvtDalitzFlatPdf(*this);
}

clone() [2/2]

virtual EvtPdf< EvtDalitzPoint > * EvtDalitzFlatPdf::clone ( ) const

virtual

Implements EvtPdf< EvtDalitzPoint >.

compute_integral() [1/2]

EvtValError EvtDalitzFlatPdf::compute_integral ( int  N ) const

virtual

Reimplemented from EvtPdf< EvtDalitzPoint >.

Definition at line 35 of file bak-BesEvtGen-00-04-08/src/EvtGen/EvtGenBase/EvtDalitzFlatPdf.cc.

{
  return EvtValError(_dp.getArea(N),0.);
}

compute_integral() [2/2]

virtual EvtValError EvtDalitzFlatPdf::compute_integral ( int  N ) const

virtual

Reimplemented from EvtPdf< EvtDalitzPoint >.

pdf() [1/2]

double EvtDalitzFlatPdf::pdf ( const EvtDalitzPoint &  ) const

protectedvirtual

Implements EvtPdf< EvtDalitzPoint >.

Definition at line 30 of file bak-BesEvtGen-00-04-08/src/EvtGen/EvtGenBase/EvtDalitzFlatPdf.cc.

{
  return 1.;
}

pdf() [2/2]

virtual double EvtDalitzFlatPdf::pdf ( const EvtDalitzPoint &  ) const

protectedvirtual

Implements EvtPdf< EvtDalitzPoint >.

randomPoint() [1/2]

EvtDalitzPoint EvtDalitzFlatPdf::randomPoint ( )

virtual

Reimplemented from EvtPdf< EvtDalitzPoint >.

Definition at line 40 of file bak-BesEvtGen-00-04-08/src/EvtGen/EvtGenBase/EvtDalitzFlatPdf.cc.

{
  // To obtain a uniform distribution generate 
  // in terms of q's. Generate in a box that circumscribes the 
  // Dalitz plot. Accept points inside. If there are two 
  // many unsuccessful attempts it's a hint that the Dalitz plot
  // area is tiny compared to the box. It's a pathological
  // case. Abort.
  
  EvtCyclic3::Pair pair1 = EvtCyclic3::BC;
  EvtCyclic3::Pair pair2 = EvtCyclic3::CA;
  
  int n = 0;
  int maxTries = 1000;
  while(n++ < maxTries) {
    
    double q1 = EvtRandom::Flat(_dp.qAbsMin(pair1),_dp.qAbsMax(pair2));
    double q2 = EvtRandom::Flat(_dp.qAbsMin(pair2),_dp.qAbsMax(pair2)); 
    
    EvtDalitzCoord point(pair1,q1,pair2,q2);
    EvtDalitzPoint x(_dp,point);
    
    if(x.isValid()) return x;
  }
  
  printf("No point generated for dalitz plot after %d tries\n",maxTries);
  assert(0);
}

randomPoint() [2/2]

virtual EvtDalitzPoint EvtDalitzFlatPdf::randomPoint ( )

virtual

Reimplemented from EvtPdf< EvtDalitzPoint >.

Member Data Documentation

_dp

EvtDalitzPlot EvtDalitzFlatPdf::_dp

protected

Definition at line 37 of file bak-BesEvtGen-00-04-08/src/EvtGen/EvtGenBase/EvtDalitzFlatPdf.hh.

Referenced by compute_integral(), and randomPoint().

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

• bak-BesEvtGen-00-04-08/src/EvtGen/EvtGenBase/EvtDalitzFlatPdf.hh
• BesEvtGen-00-04-08/src/EvtGen/EvtGenBase/EvtDalitzFlatPdf.hh
• bak-BesEvtGen-00-04-08/src/EvtGen/EvtGenBase/EvtDalitzFlatPdf.cc
• BesEvtGen-00-04-08/src/EvtGen/EvtGenBase/EvtDalitzFlatPdf.cc