* provided "as is" without express or implied warranty. *
**************************************************************************/
-/*
-$Log$
-Revision 1.13 2000/04/26 10:17:31 fca
-Changes in Lego for G4 compatibility
-
-Revision 1.12 2000/04/07 11:12:33 fca
-G4 compatibility changes
-
-Revision 1.11 2000/03/22 13:42:26 fca
-SetGenerator does not replace an existing generator, ResetGenerator does
-
-Revision 1.10 2000/02/23 16:25:22 fca
-AliVMC and AliGeant3 classes introduced
-ReadEuclid moved from AliRun to AliModule
-
-Revision 1.9 1999/12/03 10:54:01 fca
-Fix lego summary
-
-Revision 1.8 1999/10/01 09:54:33 fca
-Correct logics for Lego StepManager
-
-Revision 1.7 1999/09/29 09:24:29 fca
-Introduction of the Copyright and cvs Log
-
-*/
+/* $Id$ */
//////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////
//
//////////////////////////////////////////////////////////////
+#include "TClonesArray.h"
+#include "TH2.h"
#include "TMath.h"
+#include "TString.h"
+#include "TVirtualMC.h"
+
+#include "AliLog.h"
+#include "AliDebugVolume.h"
#include "AliLego.h"
-#include "AliRun.h"
-#include "AliConst.h"
+#include "AliLegoGenerator.h"
#include "AliMC.h"
+#include "AliRun.h"
ClassImp(AliLego)
-
-//___________________________________________
-AliLego::AliLego()
+//_______________________________________________________________________
+AliLego::AliLego():
+ fGener(0),
+ fTotRadl(0),
+ fTotAbso(0),
+ fTotGcm2(0),
+ fHistRadl(0),
+ fHistAbso(0),
+ fHistGcm2(0),
+ fHistReta(0),
+ fVolumesFwd(0),
+ fVolumesBwd(0),
+ fStepBack(0),
+ fStepsBackward(0),
+ fStepsForward(0),
+ fErrorCondition(0),
+ fDebug(0),
+ fStopped(0)
{
- fHistRadl = 0;
- fHistAbso = 0;
- fHistGcm2 = 0;
- fHistReta = 0;
+ //
+ // Default constructor
+ //
}
-//___________________________________________
-AliLego::AliLego(const char *title, Int_t ntheta, Float_t themin, Float_t themax,
- Int_t nphi, Float_t phimin, Float_t phimax,
- Float_t rmin, Float_t rmax, Float_t zmax)
- : TNamed("Lego Generator",title)
+//_______________________________________________________________________
+AliLego::AliLego(const AliLego &lego):
+ TNamed(lego),
+ fGener(0),
+ fTotRadl(0),
+ fTotAbso(0),
+ fTotGcm2(0),
+ fHistRadl(0),
+ fHistAbso(0),
+ fHistGcm2(0),
+ fHistReta(0),
+ fVolumesFwd(0),
+ fVolumesBwd(0),
+ fStepBack(0),
+ fStepsBackward(0),
+ fStepsForward(0),
+ fErrorCondition(0),
+ fDebug(0),
+ fStopped(0)
{
-// specify the angular limits and the size of the rectangular box
-
- fGener = new AliLegoGenerator(ntheta, themin, themax,
- nphi, phimin, phimax, rmin, rmax, zmax);
-
- gAlice->ResetGenerator(fGener);
+ //
+ // Copy constructor
+ //
+ lego.Copy(*this);
+}
- Float_t etamin = -TMath::Log(TMath::Tan(TMath::Min((Double_t)themax*kDegrad/2,TMath::Pi()/2-1.e-10)));
- Float_t etamax = -TMath::Log(TMath::Tan(TMath::Max((Double_t)themin*kDegrad/2, 1.e-10)));
+//_______________________________________________________________________
+AliLego::AliLego(const char *title, Int_t ntheta, Float_t thetamin,
+ Float_t thetamax, Int_t nphi, Float_t phimin, Float_t phimax,
+ Float_t rmin, Float_t rmax, Float_t zmax):
+ TNamed("Lego Generator",title),
+ fGener(0),
+ fTotRadl(0),
+ fTotAbso(0),
+ fTotGcm2(0),
+ fHistRadl(0),
+ fHistAbso(0),
+ fHistGcm2(0),
+ fHistReta(0),
+ fVolumesFwd(0),
+ fVolumesBwd(0),
+ fStepBack(0),
+ fStepsBackward(0),
+ fStepsForward(0),
+ fErrorCondition(0),
+ fDebug(0),
+ fStopped(0)
+{
+ //
+ // specify the angular limits and the size of the rectangular box
+ //
+ fGener = new AliLegoGenerator(ntheta, thetamin, thetamax,
+ nphi, phimin, phimax, rmin, rmax, zmax);
fHistRadl = new TH2F("hradl","Radiation length map",
- nphi,phimin,phimax,ntheta,themin,themax);
+ ntheta,thetamin,thetamax,nphi,phimin,phimax);
fHistAbso = new TH2F("habso","Interaction length map",
- nphi,phimin,phimax,ntheta,themin,themax);
+ ntheta,thetamin,thetamax,nphi,phimin,phimax);
fHistGcm2 = new TH2F("hgcm2","g/cm2 length map",
- nphi,phimin,phimax,ntheta,themin,themax);
- fHistReta = new TH2F("hetar","Radiation length vs. eta",
- nphi,phimin,phimax,ntheta,etamin,etamax);
+ ntheta,thetamin,thetamax,nphi,phimin,phimax);
+//
+ fVolumesFwd = new TClonesArray("AliDebugVolume",1000);
+ fVolumesBwd = new TClonesArray("AliDebugVolume",1000);
+ fDebug = AliDebugLevel();
+}
+
+//_______________________________________________________________________
+AliLego::AliLego(const char *title, AliLegoGenerator* generator):
+ TNamed("Lego Generator",title),
+ fGener(0),
+ fTotRadl(0),
+ fTotAbso(0),
+ fTotGcm2(0),
+ fHistRadl(0),
+ fHistAbso(0),
+ fHistGcm2(0),
+ fHistReta(0),
+ fVolumesFwd(0),
+ fVolumesBwd(0),
+ fStepBack(0),
+ fStepsBackward(0),
+ fStepsForward(0),
+ fErrorCondition(0),
+ fDebug(0),
+ fStopped(0)
+{
+ //
+ // specify the angular limits and the size of the rectangular box
+ //
+ fGener = generator;
+ Float_t c1min, c1max, c2min, c2max;
+ Int_t n1 = fGener->NCoor1();
+ Int_t n2 = fGener->NCoor2();
+
+ fGener->Coor1Range(c1min, c1max);
+ fGener->Coor2Range(c2min, c2max);
+
+ fHistRadl = new TH2F("hradl","Radiation length map",
+ n2, c2min, c2max, n1, c1min, c1max);
+ fHistAbso = new TH2F("habso","Interaction length map",
+ n2, c2min, c2max, n1, c1min, c1max);
+ fHistGcm2 = new TH2F("hgcm2","g/cm2 length map",
+ n2, c2min, c2max, n1, c1min, c1max);
+ //
+ //
+ fVolumesFwd = new TClonesArray("AliDebugVolume",1000);
+ fVolumesBwd = new TClonesArray("AliDebugVolume",1000);
+ fDebug = AliDebugLevel();
}
-//___________________________________________
+//_______________________________________________________________________
AliLego::~AliLego()
{
- delete fHistRadl;
- delete fHistAbso;
- delete fHistGcm2;
- delete fHistReta;
- gAlice->ResetGenerator(0);
- delete fGener;
+ //
+ // Destructor
+ //
+ delete fHistRadl;
+ delete fHistAbso;
+ delete fHistGcm2;
+ delete fGener;
+ delete fVolumesFwd;
+ delete fVolumesBwd;
}
-//___________________________________________
+//_______________________________________________________________________
void AliLego::BeginEvent()
{
-// --- Set to 0 radiation length, absorption length and g/cm2 ---
+ //
+ // --- Set to 0 radiation length, absorption length and g/cm2 ---
+ //
fTotRadl = 0;
fTotAbso = 0;
fTotGcm2 = 0;
+ fStopped = 0;
+
+ if (fDebug) {
+ if (fErrorCondition) ToAliDebug(1, DumpVolumes());
+ fVolumesFwd->Delete();
+ fVolumesBwd->Delete();
+ fStepsForward = 0;
+ fStepsBackward = 0;
+ fErrorCondition = 0;
+ if (gAlice->GetMCApp()->GetCurrentTrackNumber() == 0) fStepBack = 0;
+ }
}
-//___________________________________________
+//_______________________________________________________________________
void AliLego::FinishEvent()
{
- Double_t thed, phid, eta;
- thed = fGener->CurTheta()*kRaddeg;
- phid = fGener->CurPhi()*kRaddeg;
- eta = -TMath::Log(TMath::Tan(TMath::Max(
- TMath::Min((Double_t)(fGener->CurTheta())/2,
- TMath::Pi()/2-1.e-10),1.e-10)));
-
- fHistRadl->Fill(phid,thed,fTotRadl);
- fHistAbso->Fill(phid,thed,fTotAbso);
- fHistGcm2->Fill(phid,thed,fTotGcm2);
- fHistReta->Fill(phid,eta,fTotRadl);
+ //
+ // Finish the event and update the histos
+ //
+ Double_t c1, c2;
+ c1 = fGener->CurCoor1();
+ c2 = fGener->CurCoor2();
+ fHistRadl->Fill(c2,c1,fTotRadl);
+ fHistAbso->Fill(c2,c1,fTotAbso);
+ fHistGcm2->Fill(c2,c1,fTotGcm2);
}
-//___________________________________________
+//_______________________________________________________________________
void AliLego::FinishRun()
{
- // Store histograms in current Root file
+ //
+ // Store histograms in current Root file
+ //
fHistRadl->Write();
fHistAbso->Write();
fHistGcm2->Write();
- fHistReta->Write();
// Delete histograms from memory
fHistRadl->Delete(); fHistRadl=0;
fHistAbso->Delete(); fHistAbso=0;
fHistGcm2->Delete(); fHistGcm2=0;
- fHistReta->Delete(); fHistReta=0;
-
+ //
+ if (fErrorCondition) ToAliError(DumpVolumes());
}
-
-//___________________________________________
-void AliLego::StepManager()
+//_______________________________________________________________________
+void AliLego::Copy(TObject&) const
{
-// called from AliRun::Stepmanager from gustep.
-// Accumulate the 3 parameters step by step
-
- static Float_t t;
- Float_t a,z,dens,radl,absl;
- Int_t i;
-
- Float_t step = gMC->TrackStep();
-
- Float_t vect[3], dir[3];
- TLorentzVector pos, mom;
-
- gMC->TrackPosition(pos);
- gMC->TrackMomentum(mom);
- gMC->CurrentMaterial(a,z,dens,radl,absl);
-
- if (z < 1) return;
-
-// --- See if we have to stop now
- if (TMath::Abs(pos[2]) > fGener->ZMax() ||
- pos[0]*pos[0] +pos[1]*pos[1] > fGener->RadMax()*fGener->RadMax()) {
- if (gMC->TrackLength()) {
- // Not the first step, add past contribution
- fTotAbso += t/absl;
- fTotRadl += t/radl;
- fTotGcm2 += t*dens;
- }
- gMC->StopTrack();
- return;
- }
-
-// --- See how long we have to go
- for(i=0;i<3;++i) {
- vect[i]=pos[i];
- dir[i]=mom[i];
- }
-
- t = fGener->PropagateCylinder(vect,dir,fGener->RadMax(),fGener->ZMax());
-
- if(step) {
- fTotAbso += step/absl;
- fTotRadl += step/radl;
- fTotGcm2 += step*dens;
- }
-}
-
-ClassImp(AliLegoGenerator)
-
-//___________________________________________
-AliLegoGenerator::AliLegoGenerator(Int_t ntheta, Float_t themin,
- Float_t themax, Int_t nphi,
- Float_t phimin, Float_t phimax,
- Float_t rmin, Float_t rmax, Float_t zmax) :
- AliGenerator(0), fRadMin(rmin), fRadMax(rmax), fZMax(zmax), fNtheta(ntheta),
- fNphi(nphi), fThetaBin(ntheta), fPhiBin(-1), fCurTheta(0), fCurPhi(0)
-
-{
- SetPhiRange(phimin,phimax);
- SetThetaRange(themin,themax);
- SetName("Lego");
+ //
+ // Copy *this onto lego -- not implemented
+ //
+ AliFatal("Not implemented!");
}
-
-//___________________________________________
-void AliLegoGenerator::Generate()
+//_______________________________________________________________________
+void AliLego::StepManager()
{
-// Create a geantino with kinematics corresponding to the current
-// bins in theta and phi.
-
//
- // Rootinos are 0
- const Int_t mpart = 0;
- Float_t orig[3], pmom[3];
- Float_t t, cost, sint, cosp, sinp;
-
- // Prepare for next step
- if(fThetaBin>=fNtheta-1)
- if(fPhiBin>=fNphi-1) {
- Warning("Generate","End of Lego Generation");
- return;
- } else {
- fPhiBin++;
- printf("Generating rays in phi bin:%d\n",fPhiBin);
- fThetaBin=0;
- } else fThetaBin++;
-
- fCurTheta = (fThetaMin+(fThetaBin+0.5)*(fThetaMax-fThetaMin)/fNtheta);
- fCurPhi = (fPhiMin+(fPhiBin+0.5)*(fPhiMax-fPhiMin)/fNphi);
- cost = TMath::Cos(fCurTheta);
- sint = TMath::Sin(fCurTheta);
- cosp = TMath::Cos(fCurPhi);
- sinp = TMath::Sin(fCurPhi);
-
- pmom[0] = cosp*sint;
- pmom[1] = sinp*sint;
- pmom[2] = cost;
-
- // --- Where to start
- orig[0] = orig[1] = orig[2] = 0;
- Float_t dalicz = 3000;
- if (fRadMin > 0) {
- t = PropagateCylinder(orig,pmom,fRadMin,dalicz);
- orig[0] = pmom[0]*t;
- orig[1] = pmom[1]*t;
- orig[2] = pmom[2]*t;
- if (TMath::Abs(orig[2]) > fZMax) return;
- }
-
- Float_t polar[3]={0.,0.,0.};
- Int_t ntr;
- gAlice->SetTrack(1, 0, mpart, pmom, orig, polar, 0, "LEGO ray", ntr);
-
+ // called from AliRun::Stepmanager from gustep.
+ // Accumulate the 3 parameters step by step
+ //
+ static Float_t t;
+ Float_t a,z,dens,radl,absl;
+ Int_t i, id, copy;
+ const char* vol;
+ static Float_t vect[3], dir[3];
+
+ TString tmp1, tmp2;
+ copy = 1;
+ id = gMC->CurrentVolID(copy);
+ vol = gMC->VolName(id);
+ Float_t step = gMC->TrackStep();
+
+ TLorentzVector pos, mom;
+ gMC->TrackPosition(pos);
+ gMC->TrackMomentum(mom);
+
+ Int_t status = 0;
+ if (gMC->IsTrackEntering()) status = 1;
+ if (gMC->IsTrackExiting()) status = 2;
+
+ if (! fStepBack) {
+ // printf("\n volume %s %d", vol, status);
+ //
+ // Normal Forward stepping
+ //
+ if (fDebug) {
+ // printf("\n steps fwd %d %s %d %f", fStepsForward, vol, fErrorCondition, step);
+
+ //
+ // store volume if different from previous
+ //
+
+ TClonesArray &lvols = *fVolumesFwd;
+ if (fStepsForward > 0) {
+ AliDebugVolume* tmp = dynamic_cast<AliDebugVolume*>((*fVolumesFwd)[fStepsForward-1]);
+ if (tmp->IsVEqual(vol, copy) && gMC->IsTrackEntering()) {
+ fStepsForward -= 2;
+ fVolumesFwd->RemoveAt(fStepsForward);
+ fVolumesFwd->RemoveAt(fStepsForward+1);
+ }
+ }
+
+ new(lvols[fStepsForward++])
+ AliDebugVolume(vol,copy,step,pos[0], pos[1], pos[2], status);
+
+ } // Debug
+ //
+ // Get current material properties
+
+ gMC->CurrentMaterial(a,z,dens,radl,absl);
+
+
+ if (z < 1) return;
+
+ // --- See if we have to stop now
+ if (TMath::Abs(pos[2]) > fGener->ZMax() ||
+ pos[0]*pos[0] +pos[1]*pos[1] > fGener->RadMax()*fGener->RadMax()) {
+ if (!gMC->IsNewTrack()) {
+ // Not the first step, add past contribution
+ if (!fStopped) {
+ if (absl) fTotAbso += t/absl;
+ if (radl) fTotRadl += t/radl;
+ fTotGcm2 += t*dens;
+ }
+
+// printf("We will stop now %5d %13.3f !\n", fStopped, t);
+// printf("%13.3f %13.3f %13.3f %13.3f %13.3f %13.3f %13.3f %s %13.3f\n",
+// pos[2], TMath::Sqrt(pos[0] * pos[0] + pos[1] * pos[1]), step, a, z, radl, absl, gMC->CurrentVolName(), fTotRadl);
+ if (fDebug) {
+ //
+ // generate "mirror" particle flying back
+ //
+ fStepsBackward = fStepsForward;
+
+ Float_t pmom[3], orig[3];
+ Float_t polar[3] = {0.,0.,0.};
+ Int_t ntr;
+ pmom[0] = -dir[0];
+ pmom[1] = -dir[1];
+ pmom[2] = -dir[2];
+ orig[0] = vect[0];
+ orig[1] = vect[1];
+ orig[2] = vect[2];
+
+ gAlice->GetMCApp()->PushTrack(1, gAlice->GetMCApp()->GetCurrentTrackNumber(),
+ 0, pmom, orig, polar, 0., kPNoProcess, ntr);
+ } // debug
+
+ } // not a new track !
+
+ if (fDebug) fStepBack = 1;
+ fStopped = kTRUE;
+ gMC->StopTrack();
+ return;
+ } // outside scoring region ?
+
+ // --- See how long we have to go
+ for(i=0;i<3;++i) {
+ vect[i]=pos[i];
+ dir[i]=mom[i];
+ }
+
+ t = fGener->PropagateCylinder(vect,dir,fGener->RadMax(),fGener->ZMax());
+
+ if(step) {
+
+ if (absl) fTotAbso += step/absl;
+ if (radl) fTotRadl += step/radl;
+ fTotGcm2 += step*dens;
+// printf("%13.3f %13.3f %13.3f %13.3f %13.3f %13.3f %13.3f %s %13.3f\n",
+// pos[2], TMath::Sqrt(pos[0] * pos[0] + pos[1] * pos[1]), step, a, z, radl, absl, gMC->CurrentVolName(), fTotRadl);
+ }
+
+ } else {
+ if (fDebug) {
+ //
+ // Geometry debugging
+ // Fly back and compare volume sequence
+ //
+ TClonesArray &lvols = *fVolumesBwd;
+ if (fStepsBackward < fStepsForward) {
+ AliDebugVolume* tmp = dynamic_cast<AliDebugVolume*>((*fVolumesBwd)[fStepsBackward]);
+ if (tmp->IsVEqual(vol, copy) && gMC->IsTrackEntering()) {
+ fStepsBackward += 2;
+ fVolumesBwd->RemoveAt(fStepsBackward-1);
+ fVolumesBwd->RemoveAt(fStepsBackward-2);
+ }
+ }
+
+ fStepsBackward--;
+ // printf("\n steps %d %s %d", fStepsBackward, vol, fErrorCondition);
+ if (fStepsBackward < 0) {
+ gMC->StopTrack();
+ fStepBack = 0;
+ return;
+ }
+
+ new(lvols[fStepsBackward]) AliDebugVolume(vol,copy,step,pos[0], pos[1], pos[2], status);
+
+ AliDebugVolume* tmp = dynamic_cast<AliDebugVolume*>((*fVolumesFwd)[fStepsBackward]);
+ if (! (tmp->IsVEqual(vol, copy)) && (!fErrorCondition))
+ {
+ AliWarning(Form("Problem at (x,y,z): %d %f %f %f, volumes: %s %s step: %f\n",
+ fStepsBackward, pos[0], pos[1], pos[2], tmp->GetName(), vol, step));
+ fErrorCondition = 1;
+ }
+ } // Debug
+ } // bwd/fwd
}
-//___________________________________________
-Float_t AliLegoGenerator::PropagateCylinder(Float_t *x, Float_t *v, Float_t r, Float_t z)
+//_______________________________________________________________________
+void AliLego::DumpVolumes()
{
-// Propagate to cylinder from inside
-
- Double_t hnorm, sz, t, t1, t2, t3, sr;
- Double_t d[3];
- const Float_t kSmall = 1e-8;
- const Float_t kSmall2 = kSmall*kSmall;
-
-// ---> Find intesection with Z planes
- d[0] = v[0];
- d[1] = v[1];
- d[2] = v[2];
- hnorm = TMath::Sqrt(1/(d[0]*d[0]+d[1]*d[1]+d[2]*d[2]));
- d[0] *= hnorm;
- d[1] *= hnorm;
- d[2] *= hnorm;
- if (d[2] > kSmall) sz = (z-x[2])/d[2];
- else if (d[2] < -kSmall) sz = -(z+x[2])/d[2];
- else sz = 1.e10; // ---> Direction parallel to X-Y, no intersection
-
-// ---> Intersection with cylinders
-// Intersection point (x,y,z)
-// (x,y,z) is on track : x=X(1)+t*D(1)
-// y=X(2)+t*D(2)
-// z=X(3)+t*D(3)
-// (x,y,z) is on cylinder : x**2 + y**2 = R**2
-//
-// (D(1)**2+D(2)**2)*t**2
-// +2.*(X(1)*D(1)+X(2)*D(2))*t
-// +X(1)**2+X(2)**2-R**2=0
-// ---> Solve second degree equation
- t1 = d[0]*d[0] + d[1]*d[1];
- if (t1 <= kSmall2) {
- t = sz; // ---> Track parallel to the z-axis, take distance to planes
- } else {
- t2 = x[0]*d[0] + x[1]*d[1];
- t3 = x[0]*x[0] + x[1]*x[1];
- // ---> It should be positive, but there may be numerical problems
- sr = (t2 +TMath::Sqrt(TMath::Max(t2*t2-(t3-r*r)*t1,0.)))/t1;
- // ---> Find minimum distance between planes and cylinder
- t = TMath::Min(sz,sr);
- }
- return t;
+ //
+ // Dump volume sequence in case of error
+ //
+ printf("\n Dumping Volume Sequence:");
+ printf("\n ==============================================");
+
+ for (Int_t i = fStepsForward-1; i>=0; i--)
+ {
+ AliDebugVolume* tmp1 = dynamic_cast<AliDebugVolume*>((*fVolumesFwd)[i]);
+ AliDebugVolume* tmp2 = dynamic_cast<AliDebugVolume*>((*fVolumesBwd)[i]);
+ if (tmp1)
+ printf("\n Volume Fwd: %3d: %5s (%3d) step: %12.5e (x,y,z) (%12.5e %12.5e %12.5e) status: %9s \n"
+ , i,
+ tmp1->GetName(), tmp1->CopyNumber(), tmp1->Step(),
+ tmp1->X(), tmp1->Y(), tmp1->Z(), tmp1->Status());
+ if (tmp2 && i>= fStepsBackward)
+ printf("\n Volume Bwd: %3d: %5s (%3d) step: %12.5e (x,y,z) (%12.5e %12.5e %12.5e) status: %9s \n"
+ , i,
+ tmp2->GetName(), tmp2->CopyNumber(), tmp2->Step(),
+ tmp2->X(), tmp2->Y(), tmp2->Z(), tmp2->Status());
+
+ printf("\n ............................................................................\n");
+ }
+ printf("\n ==============================================\n");
}
-
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff