|
|
|
#include <TFitParticleEtThetaPhi.h>
Public Member Functions | |
| virtual TLorentzVector * | calc4Vec (const TMatrixD *params) |
| virtual TAbsFitParticle * | clone (TString newname="") const |
| virtual TMatrixD * | getDerivative () |
| virtual void | setIni4Vec (const TLorentzVector *pini) |
| TFitParticleEtThetaPhi () | |
| TFitParticleEtThetaPhi (TLorentzVector *pini, const TMatrixD *theCovMatrix) | |
| TFitParticleEtThetaPhi (const TFitParticleEtThetaPhi &fitParticle) | |
| TFitParticleEtThetaPhi (const TString &name, const TString &title, TLorentzVector *pini, const TMatrixD *theCovMatrix) | |
| virtual TMatrixD * | transform (const TLorentzVector &vec) |
| virtual | ~TFitParticleEtThetaPhi () |
Protected Member Functions | |
| void | init (TLorentzVector *pini, const TMatrixD *theCovMatrix) |
Definition at line 10 of file TFitParticleEtThetaPhi.h.
| TFitParticleEtThetaPhi::TFitParticleEtThetaPhi | ( | ) |
Definition at line 27 of file TFitParticleEtThetaPhi.cc.
References init().
Referenced by clone().
:TAbsFitParticle() { init(0, 0); }
| TFitParticleEtThetaPhi::TFitParticleEtThetaPhi | ( | const TFitParticleEtThetaPhi & | fitParticle | ) |
Definition at line 33 of file TFitParticleEtThetaPhi.cc.
References TAbsFitParticle::_covMatrix, TAbsFitParticle::_iniparameters, TAbsFitParticle::_nPar, TAbsFitParticle::_parameters, TAbsFitParticle::_pcurr, TAbsFitParticle::_pini, TAbsFitParticle::_u1, TAbsFitParticle::_u2, and TAbsFitParticle::_u3.
:TAbsFitParticle( fitParticle.GetName(), fitParticle.GetTitle() ) { _nPar = fitParticle._nPar; _u1 = fitParticle._u1; _u2 = fitParticle._u2; _u3 = fitParticle._u3; _covMatrix.ResizeTo( fitParticle._covMatrix ); _covMatrix = fitParticle._covMatrix; _iniparameters.ResizeTo( fitParticle._iniparameters ); _iniparameters = fitParticle._iniparameters; _parameters.ResizeTo( fitParticle._parameters ); _parameters = fitParticle._parameters; _pini = fitParticle._pini; _pcurr = fitParticle._pcurr; }
| TFitParticleEtThetaPhi::TFitParticleEtThetaPhi | ( | TLorentzVector * | pini, |
| const TMatrixD * | theCovMatrix | ||
| ) |
Definition at line 52 of file TFitParticleEtThetaPhi.cc.
References init().
:TAbsFitParticle() { init(pini, theCovMatrix); }
| TFitParticleEtThetaPhi::TFitParticleEtThetaPhi | ( | const TString & | name, |
| const TString & | title, | ||
| TLorentzVector * | pini, | ||
| const TMatrixD * | theCovMatrix | ||
| ) |
Definition at line 58 of file TFitParticleEtThetaPhi.cc.
References init().
:TAbsFitParticle(name, title) { init(pini, theCovMatrix); }
| TFitParticleEtThetaPhi::~TFitParticleEtThetaPhi | ( | ) | [virtual] |
Definition at line 77 of file TFitParticleEtThetaPhi.cc.
{
}
| TLorentzVector * TFitParticleEtThetaPhi::calc4Vec | ( | const TMatrixD * | params | ) | [virtual] |
Implements TAbsFitParticle.
Definition at line 92 of file TFitParticleEtThetaPhi.cc.
References TAbsFitParticle::_nPar, phi, theta(), X, and Gflash::Z.
{
// Calculates a 4vector corresponding to the given
// parameter values
if (params == 0) {
return 0;
}
if ( params->GetNcols() != 1 || params->GetNrows() !=_nPar ) {
edm::LogError ("WrongMatrixSize")
<< GetName() << "::calc4Vec - Parameter matrix has wrong size.";
return 0;
}
Double_t et = (*params)(0,0);
Double_t theta = (*params)(1,0);
Double_t phi = (*params)(2,0);
Double_t X = et*TMath::Cos(phi);
Double_t Y = et*TMath::Sin(phi);
Double_t Z = et/TMath::Tan(theta);
Double_t E = et/TMath::Sin(theta);
TLorentzVector* vec = new TLorentzVector( X, Y, Z, E );
return vec;
}
| TAbsFitParticle * TFitParticleEtThetaPhi::clone | ( | TString | newname = "" | ) | const [virtual] |
Implements TAbsFitParticle.
Definition at line 65 of file TFitParticleEtThetaPhi.cc.
References TFitParticleEtThetaPhi().
{
// Returns a copy of itself
TAbsFitParticle* myclone = new TFitParticleEtThetaPhi( *this );
if ( newname.Length() > 0 ) myclone->SetName(newname);
return myclone;
}
| TMatrixD * TFitParticleEtThetaPhi::getDerivative | ( | ) | [virtual] |
Implements TAbsFitParticle.
Definition at line 167 of file TFitParticleEtThetaPhi.cc.
References TAbsFitParticle::_parameters, phi, and theta().
{
// returns derivative dP/dy with P=(p,E) and y=(et, theta, phi)
// the free parameters of the fit. The columns of the matrix contain
// (dP/d(et), dP/d(theta), dP/d(phi)).
TMatrixD* DerivativeMatrix = new TMatrixD(4,3);
(*DerivativeMatrix) *= 0.;
Double_t et = _parameters(0,0);
Double_t theta = _parameters(1,0);
Double_t phi = _parameters(2,0);
Double_t CotanTheta = 1./TMath::Tan(theta);
//1st column: dP/d(et)
(*DerivativeMatrix)(0,0) = TMath::Cos(phi);
(*DerivativeMatrix)(1,0) = TMath::Sin(phi);
(*DerivativeMatrix)(2,0) = CotanTheta;
(*DerivativeMatrix)(3,0) = 1./TMath::Sin(theta);
//2nd column: dP/d(theta)
(*DerivativeMatrix)(0,1) = 0.;
(*DerivativeMatrix)(1,1) = 0.;
(*DerivativeMatrix)(2,1) = -1.*et*(1.+CotanTheta*CotanTheta);
(*DerivativeMatrix)(3,1) = -1.*et*CotanTheta/(TMath::Sin(theta));
//3rd column: dP/d(phi)
(*DerivativeMatrix)(0,2) = -1.*et*TMath::Sin(phi);
(*DerivativeMatrix)(1,2) = et*TMath::Cos(phi);
(*DerivativeMatrix)(2,2) = 0.;
(*DerivativeMatrix)(3,2) = 0.;
return DerivativeMatrix;
}
| void TFitParticleEtThetaPhi::init | ( | TLorentzVector * | pini, |
| const TMatrixD * | theCovMatrix | ||
| ) | [protected] |
Definition at line 84 of file TFitParticleEtThetaPhi.cc.
References TAbsFitParticle::_nPar, TAbsFitParticle::setCovMatrix(), and setIni4Vec().
Referenced by TFitParticleEtThetaPhi().
{
_nPar = 3;
setIni4Vec(pini);
setCovMatrix(theCovMatrix);
}
| void TFitParticleEtThetaPhi::setIni4Vec | ( | const TLorentzVector * | pini | ) | [virtual] |
Implements TAbsFitParticle.
Definition at line 120 of file TFitParticleEtThetaPhi.cc.
References TAbsFitParticle::_iniparameters, TAbsFitParticle::_nPar, TAbsFitParticle::_parameters, TAbsFitParticle::_pcurr, TAbsFitParticle::_pini, TAbsFitParticle::_u1, TAbsFitParticle::_u2, TAbsFitParticle::_u3, phi, funct::sin(), and theta().
Referenced by init().
{
// Set the initial 4vector. Will also set the
// inital parameter values
if (pini == 0) {
_u1.SetXYZ(0., 0., 0.);
_u3.SetXYZ(0., 0., 0.);
_u2.SetXYZ(0., 0., 0.);
_pini.SetXYZT(0., 0., 0., 0.);
_pcurr = _pini;
_iniparameters.ResizeTo(_nPar,1);
_iniparameters(0,0) = 0.;
_iniparameters(1,0) = 0.;
_iniparameters(2,0) = 0.;
_parameters.ResizeTo(_nPar,1);
_parameters(0,0) = 0.;
_parameters(1,0) = 0.;
_parameters(2,0) = 0.;
} else {
Double_t et = pini->E()*std::fabs(sin(pini->Theta()));
Double_t theta = pini->Theta();
Double_t phi = pini->Phi();
_pini = (*pini);
_pcurr = _pini;
_iniparameters.ResizeTo(_nPar,1);
_iniparameters(0,0) = et;
_iniparameters(1,0) = theta;
_iniparameters(2,0) = phi;
_parameters.ResizeTo(_nPar,1);
_parameters = _iniparameters;
_u1.SetXYZ( TMath::Cos(phi), TMath::Sin(phi), 0.); // the base vector of Et
_u2.SetXYZ( TMath::Cos(phi)*TMath::Cos(theta), TMath::Sin(phi)*TMath::Cos(theta), -1.*TMath::Sin(theta) );// the base vector of Eta ( same as the base vector for Theta)
_u3.SetXYZ( -1.*TMath::Sin(phi), TMath::Cos(phi), 0. );// the base vector of Phi
}
}
| TMatrixD * TFitParticleEtThetaPhi::transform | ( | const TLorentzVector & | vec | ) | [virtual] |
Implements TAbsFitParticle.
Definition at line 203 of file TFitParticleEtThetaPhi.cc.
References TAbsFitParticle::_nPar, and funct::sin().
1.7.3