* provided "as is" without express or implied warranty. *
**************************************************************************/
-/* $Id$ */
+/*
+$Log$
+Revision 1.2 2003/01/08 10:29:33 morsch
+Path to data file changed.
+
+Revision 1.1 2003/01/06 10:13:33 morsch
+First commit.
+
+*/
#include "AliMUONFastTracking.h"
#include "AliMUONFastTrackingEntry.h"
Double_t fasymm = TMath::Exp(-0.5 * dx * dx / (sigma * sigma));
Double_t sigma2 = par[1] * par[5];
Double_t fgauss = TMath::Exp(-0.5 * dx2 * dx2 / (sigma2 * sigma2));
- return TMath::Abs(fasymm + par[3] * fgauss);
+ Double_t value = fasymm + par[3] * fgauss;
+ return value;
}
AliMUONFastTracking* AliMUONFastTracking::Instance()
AliMUONFastTracking::AliMUONFastTracking()
{
-// SetBackground();
-
+ fClusterFinder = kOld;
fPrintLevel = 1;
// read binning; temporarily put by hand
Float_t pmin = 0, pmax = 200;
}
char filename [100];
- sprintf (filename,"$(ALICE_ROOT)/FASTSIM/data/MUONtrackLUT.root");
+ if (fClusterFinder==kOld) sprintf (filename,"$(ALICE_ROOT)/FASTSIM/data/MUONtrackLUT.root");
+ else sprintf (filename,"$(ALICE_ROOT)/FASTSIM/data/MUONtrackLUT.root");
+
TFile *file = new TFile(filename);
ReadLUT(file);
SetBackground(bkg);
- UseSpline(1);
- fFitp = new TF1("fit1",FitP,-20.,20.,6);
- fFitp->SetNpx(200);
+ UseSpline(0);
}
TH3F *hmeanphi, *hsigmaphi, *hchi2phi;
char tag[40], tag2[40];
+ printf ("Reading parameters from LUT file %s...\n",file->GetName());
+
const Float_t bkg[4] = {0, 0.5, 1, 2};
for (Int_t ibkg=0; ibkg<4; ibkg++) {
sprintf (tag,"BKG%g",bkg[ibkg]);
hsigmaphi = (TH3F*)gDirectory->Get("hsigmaphi");
hchi2phi = (TH3F*)gDirectory->Get("hchi2phi");
- printf ("Reading parameters from LUT file %s...\n",file->GetName());
for (Int_t ip=0; ip<fNbinp ;ip++) {
for (Int_t itheta=0; itheta<fNbintheta ;itheta++) {
for (Int_t iphi=0; iphi<fNbinphi ;iphi++) {
itheta = Int_t (( theta - fThetamin ) / fDeltaTheta);
iphi = Int_t (( phi - fPhimin ) / fDeltaPhi);
- if (ip< 0) {
- printf ("Warning: ip= %d. Set to 0\n",ip);
- ip = 0;
- }
- if (ip>= fNbinp) {
- // printf ("Warning: ip = %d. Set to %d\n",ip,fNbinp-1);
- ip = fNbinp-1;
- }
- if (itheta< 0) {
- // printf ("Warning: itheta= %d. Set to 0\n",itheta);
- itheta = 0;
- }
- if (itheta>= fNbintheta) {
- // printf ("Warning: itheta = %d. Set to %d\n",itheta,fNbintheta-1);
- itheta = fNbintheta-1;
- }
+ if (ip< 0) ip = 0;
+ if (ip>= fNbinp) ip = fNbinp-1;
+ if (itheta< 0) itheta = 0;
+ if (itheta>= fNbintheta) itheta = fNbintheta-1;
- if (iphi< 0) {
- printf ("Warning: iphi= %d. Set to 0\n",iphi);
- iphi = 0;
- }
- if (iphi>= fNbinphi) {
- printf ("Warning: iphi = %d. Set to %d\n",iphi,fNbinphi-1);
- iphi = fNbinphi-1;
- }
+ if (iphi< 0) iphi = 0;
+ if (iphi>= fNbinphi) iphi = fNbinphi-1;
}
void AliMUONFastTracking::GetSplit(Int_t ip, Int_t itheta,
printf ("...done\n");
}
-void AliMUONFastTracking::SmearMuon(Float_t pgen, Float_t thetagen, Float_t phigen,
- Int_t charge, Float_t &psmear, Float_t &thetasmear,
- Float_t &phismear, Float_t &eff, Float_t &acc){
-
- // !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
- // IMPORTANT NOTICE TO THE USER
- //!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
- // THIS METHOD HAS BEEN REPLACED BY AliFastMuonTrackingEff::Evaluate()
- // AND WILL BE DELETED SOON
- // DO NOT USE THIS METHOD
- //
-
- printf ("AliMUONFastTracking::SmearMuon() THIS METHOD IS OBSOLETE ");
- printf ("PLEASE REFER TO AliFastMuonTrackingEff::Evaluate()\n");
- // angles are in degrees
-
- Double_t meanp = MeanP (pgen, thetagen, phigen, charge);
- Double_t sigmap = SigmaP (pgen, thetagen, phigen, charge);
- Double_t sigma1p = Sigma1P(pgen, thetagen, phigen, charge);
- Double_t normg2 = NormG2 (pgen, thetagen, phigen, charge);
- Double_t meang2 = MeanG2 (pgen, thetagen, phigen, charge);
- Double_t sigmag2 = SigmaG2(pgen, thetagen, phigen, charge);
-
- printf ("fBkg = %g normg2 (100,5,0,1) = %g \n",fBkg,NormG2(100,5,0,1));
- printf ("fBkg = %g meang2 (100,5,0,1) = %g \n",fBkg,MeanG2(100,5,0,1));
- printf ("fBkg = %g sigmag2 (100,5,0,1) = %g \n",fBkg,SigmaG2(100,5,0,1));
- Int_t ip,itheta,iphi;
- GetIpIthetaIphi(pgen, thetagen, phigen, charge, ip, itheta, iphi);
- if (sigmap == 0) {
- if (fPrintLevel>0) {
- printf ("WARNING!!! sigmap=0: ");
- printf ("ip= %d itheta = %d iphi = %d ", ip, itheta, iphi);
- printf ("p= %f theta = %f phi = %f\n", pgen, thetagen, phigen);
- }
- }
-
- if (fPrintLevel>1) printf ("setting parameters: meanp = %f sigmap = %f sigma1p = %f normg2 = %f meang2 = %f sigmag2 = %f \n",meanp,sigmap,sigma1p,normg2,meang2,sigmag2);
- fFitp->SetParameters(meanp,sigmap,sigma1p,normg2,meang2,sigmag2);
-
- Double_t meantheta = MeanTheta (pgen, thetagen, phigen, charge);
- Double_t sigmatheta = SigmaTheta(pgen, thetagen, phigen, charge);
- Double_t meanphi = MeanPhi (pgen, thetagen, phigen, charge);
- Double_t sigmaphi = SigmaPhi (pgen, thetagen, phigen, charge);
-
- // components different from ip=0 have the RMS bigger than mean
- Float_t ptp[3] = { 1.219576,-0.354764,-0.690117 };
- Float_t ptph[3] = { 0.977522, 0.016269, 0.023158 };
- Float_t pphp[3] = { 1.303256,-0.464847,-0.869322 };
- psmear = pgen + fFitp->GetRandom();
- Float_t dp = psmear - pgen;
- if (ip==0) sigmaphi *= pphp[0] + pphp[1] * dp + pphp[2] * dp*dp;
- phismear = phigen + gRandom->Gaus(meanphi, sigmaphi);
- Float_t dphi = phismear - phigen;
-
- if (ip==0) sigmatheta *= ptp[0] + ptp[1] * dp + ptp[2] * dp*dp;
- if (ip==0) sigmatheta *= ptph[0] + ptph[1] * dphi + ptph[2] * dphi*dphi;
- thetasmear = thetagen + gRandom->Gaus(meantheta,sigmatheta);
- eff = Efficiency(pgen, thetagen, phigen, charge);
- acc = Acceptance(pgen, thetagen, phigen, charge);
-}
-
void AliMUONFastTracking::SetBackground(Float_t bkg){
// linear interpolation of the parameters in the LUT between 2 values where
// the background has been actually calculated
SetSpline();
}
-
+TF1* AliMUONFastTracking::GetFitP(Int_t ip,Int_t itheta,Int_t iphi) {
+ if (!fFitp[ip][itheta][iphi]) {
+ fFitp[ip][itheta][iphi] = new TF1("fit1",FitP,-20.,20.,6);
+ fFitp[ip][itheta][iphi]->SetNpx(500);
+ fFitp[ip][itheta][iphi]->SetParameters(0,0,0,0,0,0);
+ }
+ return fFitp[ip][itheta][iphi];
+}
// to guarantee a safe extrapolation for sigmag2 to 0<bkg<0.5, let's fit
// with a straight line sigmag2 vs bkg for bkg=0.5, 1 and 2, and put the
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