DifArray Class Reference

#include <DifArray.h>

List of all members.

Public Member Functions
	DifArray (int n, int npar=0)
	DifArray (const HepVector &v, int npar=0)
	DifArray (const DifArray &a)
	~DifArray ()
DifNumber &	operator[] (int i)
DifNumber &	operator() (int i)
DifNumber	fetch (int i) const
int	nElem () const
DifArray &	operator= (const DifArray &)
HepMatrix	jacobian () const
void	zero (int npar=0)
void	print () const
Private Member Functions
void	copy (const DifArray &a)
void	copy (const HepVector &a, int npar=0)
Private Attributes
int	_nElem
DifNumber *	_pointer

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Detailed Description

Definition at line 36 of file DifArray.h.

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Constructor & Destructor Documentation

DifArray::DifArray	(	int	n,
		int	npar = 0
	)

Definition at line 29 of file DifArray.cxx.

References zero().

                                :
  _nElem(n),
  _pointer(new DifNumber[n])
{zero(npar);}

DifArray::DifArray	(	const HepVector &	v,
		int	npar = 0
	)

Definition at line 34 of file DifArray.cxx.

References copy().

                                              :
  _nElem(a.num_row()),
  _pointer(new DifNumber[nElem()])
{copy(a,npar);}

DifArray::DifArray

(

const DifArray &

a

)

Definition at line 40 of file DifArray.cxx.

References copy().

                                   :
  _nElem(a.nElem()),
  _pointer(new DifNumber[nElem()])
{copy(a);}

DifArray::~DifArray

(

)

Definition at line 45 of file DifArray.cxx.

References _pointer.

{delete[] _pointer;}

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Member Function Documentation

void DifArray::copy	(	const HepVector &	a,
		int	npar = 0
	)			[private]

Definition at line 83 of file DifArray.cxx.

References _pointer, genRecEmupikp::i, nElem(), and DifNumber::setNPar().

                                              {
  assert(nElem()==a.num_row());
  for(int i=0; i<nElem(); i++) 
    {
      _pointer[i].setNumber(a(i+1));
      _pointer[i].setNPar(npar);
    } 
}

void DifArray::copy

(

const DifArray &

a

)

[private]

Definition at line 92 of file DifArray.cxx.

References _pointer, genRecEmupikp::i, and nElem().

Referenced by DifArray(), and operator=().

                                    {
  assert(nElem()==a.nElem());
  for(int i=0; i<nElem(); i++) {_pointer[i]=a._pointer[i];}
}

DifNumber DifArray::fetch

(

int

i

)

const

Definition at line 60 of file DifArray.cxx.

References _pointer, and nElem().

                                   {
  i=i-1;
  assert(i>=0);
  assert(i<nElem());
  return _pointer[i];
}

HepMatrix DifArray::jacobian

(

)

const

Definition at line 72 of file DifArray.cxx.

References _pointer, genRecEmupikp::i, ganga-rec::j, nElem(), DifNumber::nPar(), and subSeperate::temp.

Referenced by BesVectorErr::covRTPMatrix(), BesPointErr::covRTPMatrix(), BesVectorErr::covRZPMatrix(), BesPointErr::covRZPMatrix(), and TrkHelixUtils::helixFromMomErr().

                                  {
  int npar=_pointer[0].nPar();
  HepMatrix temp(nElem(),npar,0);
  for(int i=1; i<=nElem(); i++){
    for(int j=1; j<=npar; j++) {
      temp(i,j)=_pointer[i-1].derivative(j);
    }
  } //(int i=1; i<=nElem(); i++) 
  return temp;
}

int DifArray::nElem

(

)

const [inline]

Definition at line 47 of file DifArray.h.

References _nElem.

Referenced by copy(), fetch(), jacobian(), operator()(), operator[](), print(), and zero().

{return _nElem;} // number of elements

DifNumber & DifArray::operator()

(

int

i

)

Definition at line 53 of file DifArray.cxx.

References _pointer, and nElem().

                                    {
  i=i-1;
  assert(i>=0);
  assert(i<nElem());
  return _pointer[i];
}

DifArray & DifArray::operator=

(

const DifArray &

)

Definition at line 67 of file DifArray.cxx.

References copy().

                                                {
  copy(rhs);
  return *this;
}

DifNumber & DifArray::operator[]

(

int

i

)

Definition at line 47 of file DifArray.cxx.

References _pointer, and nElem().

                                    {
  assert(i>=0);
  assert(i<nElem());
  return _pointer[i];
}

void DifArray::print

(

)

const

Definition at line 104 of file DifArray.cxx.

References genRecEmupikp::i, and nElem().

                                       {
  cout << "nElem=" << nElem() << endl;
  for(int i=1; i<=nElem(); i++){
    //SKIP cout << "element(" << i << ")=" << _pointer[i-1];
  }

}

void DifArray::zero

(

int

npar = 0

)

Definition at line 97 of file DifArray.cxx.

References _pointer, genRecEmupikp::i, nElem(), and DifNumber::setNPar().

Referenced by DifArray().

                           {
  for(int i=0; i<nElem(); i++) {
    _pointer[i]=0.0;
    _pointer[i].setNPar(npar);
  }
}

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Member Data Documentation

int DifArray::_nElem [private]

Definition at line 56 of file DifArray.h.

Referenced by nElem().

DifNumber* DifArray::_pointer [private]

Definition at line 57 of file DifArray.h.

Referenced by copy(), fetch(), jacobian(), operator()(), operator[](), zero(), and ~DifArray().

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