* provided "as is" without express or implied warranty. *
**************************************************************************/
-/* $Id$ */
-//-----------------------------------------------------------------------------
-//
-//
-//
-// Origin: Marian Ivanov, Uni. of Bratislava, ivanov@fmph.uniba.sk
-//
-// Declaration of class AliTPCRF1D
-//
-//-----------------------------------------------------------------------------
-
-//
+/// \class AliTPCRF1D
+/// \brief Declaration of class AliTPCRF1D
+///
+/// \author Marian Ivanov, Uni. of Bratislava, ivanov@fmph.uniba.sk
#include <RVersion.h>
#include <Riostream.h>
#include "AliTPCRF1D.h"
-extern TStyle * gStyle;
+extern TStyle * gStyle;
-Int_t AliTPCRF1D::fgNRF=100; //default number of interpolation points
-Float_t AliTPCRF1D::fgRFDSTEP=0.01; //default step in cm
+Int_t AliTPCRF1D::fgNRF=100; ///< default number of interpolation points
+Float_t AliTPCRF1D::fgRFDSTEP=0.01; ///< default step in cm
static Double_t funGauss(Double_t *x, Double_t * par)
{
- //Gauss function -needde by the generic function object
+ /// Gauss function -needde by the generic function object
+
return TMath::Exp(-(x[0]*x[0])/(2*par[0]*par[0]));
}
static Double_t funCosh(Double_t *x, Double_t * par)
{
- //Cosh function -needde by the generic function object
- return 1/TMath::CosH(3.14159*x[0]/(2*par[0]));
-}
+ /// Cosh function -needde by the generic function object
+
+ return 1/TMath::CosH(3.14159*x[0]/(2*par[0]));
+}
static Double_t funGati(Double_t *x, Double_t * par)
{
- //Gati function -needde by the generic function object
+ /// Gati function -needde by the generic function object
+
Float_t k3=par[1];
Float_t k3R=TMath::Sqrt(k3);
Float_t k2=(TMath::Pi()/2)*(1-k3R/2.);
Float_t l=x[0]/par[0];
Float_t tan2=TMath::TanH(k2*l);
tan2*=tan2;
- Float_t res = k1*(1-tan2)/(1+k3*tan2);
- return res;
-}
+ Float_t res = k1*(1-tan2)/(1+k3*tan2);
+ return res;
+}
///////////////////////////////////////////////////////////////////////////
///////////////////////////////////////////////////////////////////////////
+/// \cond CLASSIMP
ClassImp(AliTPCRF1D)
+/// \endcond
AliTPCRF1D::AliTPCRF1D(Bool_t direct,Int_t np,Float_t step)
funParam[i]=0.;
fType[i]=0;
}
-
+
}
AliTPCRF1D::AliTPCRF1D(const AliTPCRF1D &prf)
Float_t AliTPCRF1D::GetRF(Float_t xin)
{
//function which return response
- //for the charge in distance xin
+ //for the charge in distance xin
//return linear aproximation of RF
Float_t x = (xin-fOffset)*fDSTEPM1+fNRF/2;
Int_t i1=Int_t(x);
if (x<0) i1-=1;
Float_t res=0;
if (i1+1<fNRF &&i1>0)
- res = fcharge[i1]*(Float_t(i1+1)-x)+fcharge[i1+1]*(x-Float_t(i1));
+ res = fcharge[i1]*(Float_t(i1+1)-x)+fcharge[i1+1]*(x-Float_t(i1));
return res;
}
Float_t AliTPCRF1D::GetGRF(Float_t xin)
-{
+{
//function which returnoriginal charge distribution
//this function is just normalised for fKnorm
- if (fGRF != 0 )
+ if (fGRF != 0 )
return fkNorm*fGRF->Eval(xin)/fInteg;
else
return 0.;
}
-
+
void AliTPCRF1D::SetParam( TF1 * GRF,Float_t padwidth,
Float_t kNorm, Float_t sigma)
{
fkNorm = kNorm;
if (sigma==0) sigma= fpadWidth/TMath::Sqrt(12.);
forigsigma=sigma;
- fDSTEPM1 = 10/TMath::Sqrt(sigma*sigma+fpadWidth*fpadWidth/12);
+ fDSTEPM1 = 10/TMath::Sqrt(sigma*sigma+fpadWidth*fpadWidth/12);
//sprintf(fType,"User");
snprintf(fType,5,"User");
- // Update();
+ // Update();
}
-
+
void AliTPCRF1D::SetGauss(Float_t sigma, Float_t padWidth,
Float_t kNorm)
{
- //
+ //
// set parameters for Gauss generic charge distribution
//
fpadWidth = padWidth;
funParam[0]=sigma;
forigsigma=sigma;
fGRF->SetParameters(funParam);
- fDSTEPM1 = 10./TMath::Sqrt(sigma*sigma+fpadWidth*fpadWidth/12);
- //by default I set the step as one tenth of sigma
+ fDSTEPM1 = 10./TMath::Sqrt(sigma*sigma+fpadWidth*fpadWidth/12);
+ //by default I set the step as one tenth of sigma
//sprintf(fType,"Gauss");
snprintf(fType,5,"Gauss");
}
void AliTPCRF1D::SetCosh(Float_t sigma, Float_t padWidth,
Float_t kNorm)
{
- //
+ //
// set parameters for Cosh generic charge distribution
//
fpadWidth = padWidth;
fkNorm = kNorm;
if (fGRF !=0 ) fGRF->Delete();
- fGRF = new TF1("funCosh", funCosh, -5.,5.,2);
+ fGRF = new TF1("funCosh", funCosh, -5.,5.,2);
funParam[0]=sigma;
fGRF->SetParameters(funParam);
forigsigma=sigma;
- fDSTEPM1 = 10./TMath::Sqrt(sigma*sigma+fpadWidth*fpadWidth/12);
+ fDSTEPM1 = 10./TMath::Sqrt(sigma*sigma+fpadWidth*fpadWidth/12);
//by default I set the step as one tenth of sigma
//sprintf(fType,"Cosh");
snprintf(fType,5,"Cosh");
void AliTPCRF1D::SetGati(Float_t K3, Float_t padDistance, Float_t padWidth,
Float_t kNorm)
{
- //
+ //
// set parameters for Gati generic charge distribution
//
fpadWidth = padWidth;
fkNorm = kNorm;
if (fGRF !=0 ) fGRF->Delete();
- fGRF = new TF1("funGati", funGati, -5.,5.,2);
+ fGRF = new TF1("funGati", funGati, -5.,5.,2);
funParam[0]=padDistance;
- funParam[1]=K3;
+ funParam[1]=K3;
fGRF->SetParameters(funParam);
forigsigma=padDistance;
- fDSTEPM1 = 10./TMath::Sqrt(padDistance*padDistance+fpadWidth*fpadWidth/12);
+ fDSTEPM1 = 10./TMath::Sqrt(padDistance*padDistance+fpadWidth*fpadWidth/12);
//by default I set the step as one tenth of sigma
//sprintf(fType,"Gati");
snprintf(fType,5,"Gati");
void AliTPCRF1D::DrawRF(Float_t x1,Float_t x2,Int_t N)
-{
+{
//
//Draw prf in selected region <x1,x2> with nuber of diviision = n
//
pad2->Draw();
//sprintf(s,"RF response function for %1.2f cm pad width",
- // fpadWidth);
- snprintf(s,60,"RF response function for %1.2f cm pad width",fpadWidth);
+ // fpadWidth);
+ snprintf(s,60,"RF response function for %1.2f cm pad width",fpadWidth);
pad1->cd();
TH1F * hRFo = new TH1F("hRFo","Original charge distribution",N+1,x1,x2);
pad2->cd();
gStyle->SetOptFit(1);
- gStyle->SetOptStat(0);
+ gStyle->SetOptStat(0);
TH1F * hRFc = new TH1F("hRFc",s,N+1,x1,x2);
Float_t x=x1;
Float_t y1;
y1 = GetRF(x);
hRFc->Fill(x,y1);
y2 = GetGRF(x);
- hRFo->Fill(x,y2);
+ hRFo->Fill(x,y2);
};
pad1->cd();
hRFo->Fit("gaus");
//at the begining initialize to 0
for (Int_t i =0; i<fNRF;i++) fcharge[i] = 0;
if ( fGRF == 0 ) return;
- // This form is no longer available
+ // This form is no longer available
#if ROOT_VERSION_CODE < ROOT_VERSION(5,99,0)
fInteg = fGRF->Integral(-5*forigsigma,5*forigsigma,funParam,0.00001);
#else
fGRF->SetParameters(funParam);
fInteg = fGRF->Integral(-5*forigsigma,5*forigsigma,0.00001);
#endif
- if ( fInteg == 0 ) fInteg = 1;
+ if ( fInteg == 0 ) fInteg = 1;
if (fDirect==kFALSE){
//integrate charge over pad for different distance of pad
for (Int_t i =0; i<fNRF;i++)
#else
fcharge[i] = fkNorm*fGRF->Integral(x1,x2,0.0001)/fInteg;
#endif
- };
+ };
}
else{
for (Int_t i =0; i<fNRF;i++)
{ //x in cm fpadWidth in cm
Float_t x = (Float_t)(i-fNRF/2)/fDSTEPM1;
fcharge[i] = fkNorm*fGRF->Eval(x);
- };
- }
- fSigma = 0;
+ };
+ }
+ fSigma = 0;
Float_t sum =0;
Float_t mean=0;
for (Float_t x =-fNRF/fDSTEPM1; x<fNRF/fDSTEPM1;x+=1/fDSTEPM1)
{ //x in cm fpadWidth in cm
Float_t weight = GetRF(x+fOffset);
- fSigma+=x*x*weight;
+ fSigma+=x*x*weight;
mean+=x*weight;
sum+=weight;
- };
+ };
if (sum>0){
mean/=sum;
- fSigma = TMath::Sqrt(fSigma/sum-mean*mean);
+ fSigma = TMath::Sqrt(fSigma/sum-mean*mean);
}
- else fSigma=0;
+ else fSigma=0;
#if ROOT_VERSION_CODE >= ROOT_VERSION(5,99,0)
fGRF->SetParameters(savParam.GetArray());
#endif
if (R__b.IsReading()) {
AliTPCRF1D::Class()->ReadBuffer(R__b, this);
//read functions
-
+
if (strncmp(fType,"Gauss",3)==0) {delete fGRF; fGRF = new TF1("funGauss",funGauss,-5.,5.,4);}
if (strncmp(fType,"Cosh",3)==0) {delete fGRF; fGRF = new TF1("funCosh",funCosh,-5.,5.,4);}
- if (strncmp(fType,"Gati",3)==0) {delete fGRF; fGRF = new TF1("funGati",funGati,-5.,5.,4);}
- if (fGRF) fGRF->SetParameters(funParam);
+ if (strncmp(fType,"Gati",3)==0) {delete fGRF; fGRF = new TF1("funGati",funGati,-5.,5.,4);}
+ if (fGRF) fGRF->SetParameters(funParam);
} else {
AliTPCRF1D::Class()->WriteBuffer(R__b, this);
Double_t g2 = TMath::Power(x/p1,4);
return p0*g1*g2;
}
-
+
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff