/*
$Log$
+Revision 1.9 2002/10/22 14:45:45 alibrary
+Introducing Riostream.h
+
+Revision 1.8 2002/10/14 14:57:08 hristov
+Merging the VirtualMC branch to the main development branch (HEAD)
+
+Revision 1.3.8.2 2002/10/14 13:14:08 hristov
+Updating VirtualMC to v3-09-02
+
+Revision 1.7 2002/09/09 17:23:28 nilsen
+Minor changes in support of changes to AliITSdigitS?D class'.
+
Revision 1.6 2002/08/21 22:09:58 nilsen
Updated SPD simulation with difusion effects. ReWritten Hit to SDigits
code.
*/
-#include <iostream.h>
+#include <Riostream.h>
#include <TRandom.h>
#include <TH1.h>
#include <TMath.h>
fModule = 0;
fEvent = 0;
- fNPixelsZ=fSegmentation->Npz();
- fNPixelsX=fSegmentation->Npx();
+ fNPixelsZ=GetSeg()->Npz();
+ fNPixelsX=GetSeg()->Npx();
- fResponse->GetNoiseParam(fNoise,fBaseline);
- fResponse->SetDistanceOverVoltage(kmictocm*fSegmentation->Dy(),50.0);
+ GetResp()->GetNoiseParam(fNoise,fBaseline);
+ GetResp()->SetDistanceOverVoltage(kmictocm*GetSeg()->Dy(),50.0);
-// fMapA2 = new AliITSMapA2(fSegmentation);
+// fMapA2 = new AliITSMapA2(GetSeg());
fMapA2 = 0;
fpList = new AliITSpList(fNPixelsZ+1,fNPixelsX+1);
static AliITS *aliITS = (AliITS*)gAlice->GetModule("ITS");
pList->GetMaxMapIndex(niz, nix);
- for(iz=0; iz<niz; iz++)for(ix=0; ix<nix; ix++){
- if(pList->GetSignalOnly(iz,ix)>0.0){
- aliITS->AddSumDigit(*(pList->GetpListItem(iz,ix)));
+ for(iz=0; iz<niz-1; iz++)for(ix=0; ix<nix-1; ix++){
+ if(pList->GetSignalOnly(iz+1,ix+1)>0.0){
+ aliITS->AddSumDigit(*(pList->GetpListItem(iz+1,ix+1)));
#ifdef DEBUG
cout <<"SDigits " << iz << "," << ix << "," <<
- *(pList->GetpListItem(iz,ix)) << endl;
+ *(pList->GetpListItem(iz+1,ix+1)) << endl;
#endif
} // end if pList
} // end for iz,ix
// none
// fMapA2->AddSignal(iz, ix, signal);
- pList->AddSignal(iz,ix, trk, ht, fModule, signal);
+ pList->AddSignal(iz+1,ix+1, trk, ht, fModule, signal);
}
//______________________________________________________________________
void AliITSsimulationSPDdubna::UpdateMapNoise(Int_t iz,
// none
// fMapA2->AddSignal(iz, ix, noise);
- pList->AddNoise(iz,ix, fModule, noise);
+ pList->AddNoise(iz+1,ix+1, fModule, noise);
}
//______________________________________________________________________
void AliITSsimulationSPDdubna::HitToDigit(AliITSmodule *mod, Int_t module,
#endif
if(mod->LineSegmentL(h,x0,x1,y0,y1,z0,z1,de,idtrack)){
st =TMath::Sqrt(x1*x1+y1*y1+z1*z1);
- if(st>0.0) for(t=0;t<1.0;t+=dt){ // Integrate over t
- tp = t+0.5*dt;
- el = GetResp()->GeVToCharge((Float_t)(dt*de));
+ if(st>0.0){
+ st = (Double_t)((Int_t)(1.0E+04*st)); // number of microns
+ if(st<=0.0) st = 1.0;
+ dt = 1.0/st;
+ for(t=0;t<1.0;t+=dt){ // Integrate over t
+ tp = t+0.5*dt;
+ el = GetResp()->GeVToCharge((Float_t)(dt*de));
#ifdef DEBUG
- if(el<=0.0) cout << "el="<<el<<" dt="<<dt<<" de="<<de<<endl;
+ if(el<=0.0) cout << "el="<<el<<" dt="<<dt<<" de="<<de<<endl;
#endif
- x = x0+x1*tp;
- y = y0+y1*tp;
- z = z0+z1*tp;
+ x = x0+x1*tp;
+ y = y0+y1*tp;
+ z = z0+z1*tp;
+ GetSeg()->LocalToDet(x,z,ix,iz);
+ sig = GetResp()->SigmaDiffusion1D(thick + y);
+ SpreadCharge(x,y,z,ix,iz,el,sig,idtrack,
+ mod->GetHitTrackIndex(h),h,mod->GetIndex());
+ } // end for t
+ } else { // st == 0.0 deposit it at this point
+ el = GetResp()->GeVToCharge((Float_t)de);
+ x = x0;
+ y = y0;
+ z = z0;
GetSeg()->LocalToDet(x,z,ix,iz);
sig = GetResp()->SigmaDiffusion1D(thick + y);
SpreadCharge(x,y,z,ix,iz,el,sig,
idtrack,mod->GetHitTrackIndex(h),h,mod->GetIndex());
+ } // end if st>0.0
+ }} // Loop over all hits h
+}/*
+//______________________________________________________________________
+void AliITSsimulationSPDdubna::HitToSDigit(AliITSmodule *mod, Int_t module,
+ Int_t dummy,AliITSpList *pList){
+ // Does the charge distributions using Gaussian diffusion charge charing.
+ const Double_t kmictocm = 1.0e-4; // convert microns to cm.
+ TObjArray *hits = mod->GetHits();
+ Int_t nhits = hits->GetEntriesFast();
+ Int_t h,ix,iz,i,n;
+ Int_t idtrack;
+ Double_t x0=0.0,x1=0.0,y0=0.0,y1=0.0,z0=0.0,z1=0.0,de=0.0;
+ Double_t x,y,z,*ta,t,tp,st,dt=0.2,el,sig;
+ Double_t thick = kmictocm*GetSeg()->Dy();
+
+ if(nhits<=0) return;
+ for(h=0;h<nhits;h++){
+#ifdef DEBUG
+ cout << "Hits=" << h << "," << *(mod->GetHit(h)) << endl;
+#endif
+ if(mod->LineSegmentL(h,x0,x1,y0,y1,z0,z1,de,idtrack)){
+ st =TMath::Sqrt(x1*x1+y1*y1+z1*z1);
+ if(st>0.0){
+ st =TMath::Sqrt(x1*x1+y1*y1+z1*z1)*(ta[i+1]-ta[i]);
+ ta = CreateFindCellEdges(x0,x1,z0,z1,n);
+ for(i=0;i<n-1;i++){
+ dt = TMath::Min((1.0E-4)/st,);
+ for(t=ta[i];t<ta[i+1];t+=dt){ // Integrate over t
+ tp = t+0.5*dt;
+ el = GetResp()->GeVToCharge((Float_t)(dt*de));
+#ifdef DEBUG
+ if(el<=0.0) cout << "el="<<el<<" dt="<<dt<<" de="<<de<<endl;
+#endif
+ x = x0+x1*tp;
+ y = y0+y1*tp;
+ z = z0+z1*tp;
+ GetSeg()->LocalToDet(x,z,ix,iz);
+ sig = GetResp()->SigmaDiffusion1D(thick + y);
+ SpreadCharge(x,y,z,ix,iz,el,sig,idtrack,
+ mod->GetHitTrackIndex(h),h,mod->GetIndex());
+ } // end for t[i]
+ delete[] t;
} else { // st == 0.0 deposit it at this point
el = GetResp()->GeVToCharge((Float_t)de);
x = x0;
idtrack,mod->GetHitTrackIndex(h),h,mod->GetIndex());
} // end if st>0.0
}} // Loop over all hits h
-}
+ }*/
//______________________________________________________________________
void AliITSsimulationSPDdubna::SpreadCharge(Double_t x0,Double_t y0,
Double_t z0,Int_t ix0,Int_t iz0,
Double_t x1,x2,z1,z2,s,sp;
if(sig<=0.0) {
- fpList->AddSignal(iz0,ix0,t,hi,mod,el);
+ fpList->AddSignal(iz0+1,ix0+1,t,hi,mod,el);
return;
} // end if
sp = 1.0/(sig*kRoot2);
#ifdef DEBUG
cout << " sp*z1=" << sp*z1 <<" sp*z2=" << sp*z2 << " s=" << s << endl;
#endif
- fpList->AddSignal(iz,ix,t,hi,mod,s*el);
+ fpList->AddSignal(iz+1,ix+1,t,hi,mod,s*el);
} // end for ix, iz
}
//______________________________________________________________________
+Double_t *AliITSsimulationSPDdubna::CreateFindCellEdges(Double_t x0,Double_t x1,
+ Double_t z0,Double_t z1,Int_t &n){
+ // Note: This function is a potensial source for a memory leak. The memory
+ // pointed to in its return, must be deleted.
+ // Inputs:
+ // Double_t x0 The starting location of the track step in x
+ // Double_t x1 The distance allong x for the track step
+ // Double_t z0 The starting location of the track step in z
+ // Double_t z1 The distance allong z for the track step
+ // Output:
+ // Int)t &n The size of the array returned. Minimal n=2.
+ // Return:
+ // The pointer to the array of track steps.
+ Int_t ix0,ix1,ix,iz0,iz1,iz,i;
+ Double_t x,z,lx,ux,lz,uz,a,b,c,d;
+ Double_t *t;
+
+ GetSeg()->LocalToDet(x0,z0,ix0,iz0);
+ GetSeg()->LocalToDet(x1,z1,ix1,iz1);
+ n = 2 + TMath::Abs(ix1-ix0) + TMath::Abs(iz1-iz0);
+ t = new Double_t[n];
+ t[0] = 0.0;
+ t[n-1] = 1.0;
+ x = x0;
+ z = z0;
+ for(i=1;i<n-1;i++){
+ GetSeg()->LocalToDet(x,z,ix,iz);
+ GetSeg()->CellBoundries(ix,iz,lx,ux,lz,uz);
+ a = (lx-x0)/x1;
+ if(a<=t[i-1]) a = 1.0;
+ b = (ux-x0)/x1;
+ if(b<=t[i-1]) b = 1.0;
+ c = (lz-z0)/z1;
+ if(c<=t[i-1]) c = 1.0;
+ d = (uz-z0)/z1;
+ if(d<=t[i-1]) d = 1.0;
+ t[i] = TMath::Min(TMath::Min(TMath::Min(a,b),c),d);
+ x = x0+x1*(t[i]*1.00000001);
+ z = z0+z1*(t[i]*1.00000001);
+ i++;
+ } // end for i
+ return t;
+}
+//______________________________________________________________________
void AliITSsimulationSPDdubna::HitToSDigitOld(AliITSmodule *mod, Int_t module,
Int_t dummy, AliITSpList *pList){
// digitize module
// for 3.6 eV/pair
const Float_t kconv = 10000.; // cm -> microns
- Float_t spdLength = fSegmentation->Dz();
- Float_t spdWidth = fSegmentation->Dx();
- Float_t spdThickness = fSegmentation->Dy();
+ Float_t spdLength = GetSeg()->Dz();
+ Float_t spdWidth = GetSeg()->Dx();
+ Float_t spdThickness = GetSeg()->Dy();
Float_t difCoef, dum;
- fResponse->DiffCoeff(difCoef,dum);
+ GetResp()->DiffCoeff(difCoef,dum);
if(spdThickness > 290) difCoef = 0.00613;
Float_t zPix0 = 1e+6;
Float_t xPix0 = 1e+6;
Float_t yPrev = 1e+6;
- Float_t zPitch = fSegmentation->Dpz(0);
- Float_t xPitch = fSegmentation->Dpx(0);
+ Float_t zPitch = GetSeg()->Dpz(0);
+ Float_t xPitch = GetSeg()->Dpx(0);
TObjArray *fHits = mod->GetHits();
module = mod->GetIndex();
zPixn = (zPixn + spdLength/2.);
xPixn = (xPixn + spdWidth/2.);
Int_t nZpix, nXpix;
- fSegmentation->GetPadIxz(xPixn,zPixn,nXpix,nZpix);
- zPitch = fSegmentation->Dpz(nZpix);
- fSegmentation->GetPadTxz(xPixn,zPixn);
+ GetSeg()->GetPadIxz(xPixn,zPixn,nXpix,nZpix);
+ zPitch = GetSeg()->Dpz(nZpix);
+ GetSeg()->GetPadTxz(xPixn,zPixn);
// set the window for the integration
Int_t jzmin = 1;
Int_t jzmax = 3;
// add noise and electronics, perform the zero suppression and add the
// digit to the list
static AliITS *aliITS = (AliITS*)gAlice->GetModule("ITS");
- Float_t threshold = (float)fResponse->MinVal();
+ Float_t threshold = (float)GetResp()->MinVal();
Int_t j;
// Int_t digits[3], tracks[3], hits[3];
// Float_t charges[3];
for(Int_t iz=0; iz<fNPixelsZ; iz++){
for(Int_t ix=0; ix<fNPixelsX; ix++){
electronics = fBaseline + fNoise*gRandom->Gaus();
- sig = pList->GetSignalOnly(iz,ix);
+ sig = pList->GetSignalOnly(iz+1,ix+1);
UpdateMapNoise(iz,ix,fModule,sig,electronics,pList);
#ifdef DEBUG
// cout << sig << "+" << electronics <<">threshold=" << threshold
dig.fCoord1 = iz;
dig.fCoord2 = ix;
dig.fSignal = 1;
- dig.fSignalSPD = (Int_t) pList->GetSignal(iz,ix);
+ dig.fSignalSPD = (Int_t) pList->GetSignal(iz+1,ix+1);
/*
digits[0] = iz;
digits[1] = ix;
for(j=0;j<nmaxtrk;j++){
// charges[j] = 0.0;
if (j<pList->GetNEnteries()) {
- dig.fTracks[j] = pList->GetTrack(iz,ix,j);
- dig.fHits[j] = pList->GetHit(iz,ix,j);
+ dig.fTracks[j] = pList->GetTrack(iz+1,ix+1,j);
+ dig.fHits[j] = pList->GetHit(iz+1,ix+1,j);
/*
- tracks[j] = pList->GetTrack(iz,ix,j);
- hits[j] = pList->GetHit(iz,ix,j);
+ tracks[j] = pList->GetTrack(iz+1,ix+1,j);
+ hits[j] = pList->GetHit(iz+1,ix+1,j);
*/
}else { // Default values
dig.fTracks[j] = -3;
hits[j] = -1; */
} // end if pList
} // end for j
-// charges[0] = (Float_t) pList->GetSumSignal(iz,ix);
+// charges[0] = (Float_t) pList->GetSumSignal(iz+1,ix+1);
/*
if(tracks[0] == tracks[1] && tracks[0] == tracks[2]) {
tracks[1] = -3;
// phys = 0.0;
#ifdef DEBUG
cout << iz << "," << ix << "," <<
- *(pList->GetpListItem(iz,ix)) << endl;
+ *(pList->GetpListItem(iz+1,ix+1)) << endl;
#endif
// aliITS->AddSimDigit(0, phys, digits, tracks, hits, charges);
aliITS->AddSimDigit(0,&dig);
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff