/* $Id$ */
+/* History of cvs commits:
+ *
+ * $Log$
+ * Revision 1.59 2007/10/18 15:12:22 kharlov
+ * Moved MakePrimary to EMCRecPoint to rpduce correct order of primaries
+ *
+ * Revision 1.58 2007/04/16 09:03:37 kharlov
+ * Incedent angle correction fixed
+ *
+ * Revision 1.57 2007/04/05 10:18:58 policheh
+ * Introduced distance to nearest bad crystal.
+ *
+ * Revision 1.56 2007/03/06 06:47:28 kharlov
+ * DP:Possibility to use actual vertex position added
+ *
+ * Revision 1.55 2007/01/19 20:31:19 kharlov
+ * Improved formatting for Print()
+ */
+
//_________________________________________________________________________
// RecPoint implementation for PHOS-EMC
// An EmcRecPoint is a cluster of digits
-//
-//*-- Author: Dmitri Peressounko (RRC KI & SUBATECH)
+//--
+//-- Author: Dmitri Peressounko (RRC KI & SUBATECH)
// --- ROOT system ---
-#include "TPad.h"
#include "TH2.h"
#include "TMath.h"
#include "TCanvas.h"
+#include "TGraph.h"
// --- Standard library ---
-#include <iostream.h>
-
// --- AliRoot header files ---
-
- #include "AliGenerator.h"
+#include "AliLog.h"
+#include "AliPHOSLoader.h"
+#include "AliGenerator.h"
#include "AliPHOSGeometry.h"
+#include "AliPHOSDigit.h"
#include "AliPHOSEmcRecPoint.h"
-#include "AliRun.h"
-
+#include "AliPHOSReconstructor.h"
+
ClassImp(AliPHOSEmcRecPoint)
//____________________________________________________________________________
-AliPHOSEmcRecPoint::AliPHOSEmcRecPoint() : AliPHOSRecPoint()
+AliPHOSEmcRecPoint::AliPHOSEmcRecPoint() :
+ AliPHOSRecPoint(),
+ fCoreEnergy(0.), fDispersion(0.),
+ fEnergyList(0), fTime(-1.), fNExMax(0),
+ fM2x(0.), fM2z(0.), fM3x(0.), fM4z(0.),
+ fPhixe(0.), fDistToBadCrystal(-1),fDebug(0)
{
// ctor
+ fMulDigit = 0 ;
+ fAmp = 0. ;
+ fLocPos.SetX(1000000.) ; //Local position should be evaluated
+}
+//____________________________________________________________________________
+AliPHOSEmcRecPoint::AliPHOSEmcRecPoint(const char * opt) :
+ AliPHOSRecPoint(opt),
+ fCoreEnergy(0.), fDispersion(0.),
+ fEnergyList(0), fTime(-1.), fNExMax(0),
+ fM2x(0.), fM2z(0.), fM3x(0.), fM4z(0.),
+ fPhixe(0.), fDistToBadCrystal(-1), fDebug(0)
+{
+ // ctor
fMulDigit = 0 ;
fAmp = 0. ;
- fCoreEnergy = 0 ;
- fEnergyList = 0 ;
- fGeom = AliPHOSGeometry::GetInstance() ;
fLocPos.SetX(1000000.) ; //Local position should be evaluated
-
+}
+
+//____________________________________________________________________________
+AliPHOSEmcRecPoint::AliPHOSEmcRecPoint(const AliPHOSEmcRecPoint & rp) :
+ AliPHOSRecPoint(rp),
+ fCoreEnergy(rp.fCoreEnergy), fDispersion(rp.fDispersion),
+ fEnergyList(0), fTime(rp.fTime), fNExMax(rp.fNExMax),
+ fM2x(rp.fM2x), fM2z(rp.fM2z), fM3x(rp.fM3x), fM4z(rp.fM4z),
+ fPhixe(rp.fPhixe), fDistToBadCrystal(rp.fDistToBadCrystal), fDebug(rp.fDebug)
+{
+ // cpy ctor
+ fMulDigit = rp.fMulDigit ;
+ fAmp = rp.fAmp ;
+ if (rp.fMulDigit>0) fEnergyList = new Float_t[rp.fMulDigit] ;
+ for(Int_t index = 0 ; index < fMulDigit ; index++)
+ fEnergyList[index] = rp.fEnergyList[index] ;
}
//____________________________________________________________________________
void AliPHOSEmcRecPoint::AddDigit(AliPHOSDigit & digit, Float_t Energy)
{
// Adds a digit to the RecPoint
- // and accumulates the total amplitude and the multiplicity
+ // and accumulates the total amplitude and the multiplicity
if(fEnergyList == 0)
fEnergyList = new Float_t[fMaxDigit];
if ( fMulDigit >= fMaxDigit ) { // increase the size of the lists
fMaxDigit*=2 ;
- Int_t * tempo = new ( Int_t[fMaxDigit] ) ;
- Float_t * tempoE = new ( Float_t[fMaxDigit] ) ;
+ Int_t * tempo = new Int_t[fMaxDigit];
+ Float_t * tempoE = new Float_t[fMaxDigit];
Int_t index ;
for ( index = 0 ; index < fMulDigit ; index++ ){
}
delete [] fDigitsList ;
- fDigitsList = new ( Int_t[fMaxDigit] ) ;
+ fDigitsList = new Int_t[fMaxDigit];
delete [] fEnergyList ;
- fEnergyList = new ( Float_t[fMaxDigit] ) ;
+ fEnergyList = new Float_t[fMaxDigit];
for ( index = 0 ; index < fMulDigit ; index++ ){
fDigitsList[index] = tempo[index] ;
//____________________________________________________________________________
Bool_t AliPHOSEmcRecPoint::AreNeighbours(AliPHOSDigit * digit1, AliPHOSDigit * digit2 ) const
{
- // Tells if (true) or not (false) two digits are neighbors)
+ // Tells if (true) or not (false) two digits are neighbors
Bool_t aren = kFALSE ;
- AliPHOSGeometry * phosgeom = (AliPHOSGeometry *) fGeom ;
+ AliPHOSGeometry * phosgeom = AliPHOSGeometry::GetInstance() ;
+
Int_t relid1[4] ;
phosgeom->AbsToRelNumbering(digit1->GetId(), relid1) ;
Int_t AliPHOSEmcRecPoint::Compare(const TObject * obj) const
{
// Compares two RecPoints according to their position in the PHOS modules
-
- Float_t delta = 1 ; //Width of "Sorting row". If you changibg this
+
+ const Float_t delta = 1 ; //Width of "Sorting row". If you changibg this
//value (what is senseless) change as vell delta in
//AliPHOSTrackSegmentMakerv* and other RecPoints...
Int_t rv ;
return rv ;
}
-
//______________________________________________________________________________
-void AliPHOSEmcRecPoint::ExecuteEvent(Int_t event, Int_t px, Int_t py)
+void AliPHOSEmcRecPoint::ExecuteEvent(Int_t event, Int_t, Int_t) /*const*/
{
-// Commented by Dmitri Peressounko: there is no possibility to ensure,
-// that AliPHOSIndexToObject keeps the correct information.
-
-// // Execute action corresponding to one event
-// // This member function is called when a AliPHOSRecPoint is clicked with the locator
-// //
-// // If Left button is clicked on AliPHOSRecPoint, the digits are switched on
-// // and switched off when the mouse button is released.
-// //
-
-// // static Int_t pxold, pyold;
+
+ // Execute action corresponding to one event
+ // This member function is called when a AliPHOSRecPoint is clicked with the locator
+ //
+ // If Left button is clicked on AliPHOSRecPoint, the digits are switched on
+ // and switched off when the mouse button is released.
+
+
+ AliPHOSGeometry * phosgeom = AliPHOSGeometry::GetInstance();
+
+ static TGraph * digitgraph = 0 ;
+
+ if (!gPad->IsEditable()) return;
+
+ TH2F * histo = 0 ;
+ TCanvas * histocanvas ;
-// AliPHOSIndexToObject * please = AliPHOSIndexToObject::GetInstance() ;
-// static TGraph * digitgraph = 0 ;
+ //try to get run loader from default event folder
+ AliRunLoader* rn = AliRunLoader::GetRunLoader(AliConfig::GetDefaultEventFolderName());
+ if (rn == 0x0)
+ {
+ AliError(Form("Cannot find Run Loader in Default Event Folder"));
+ return;
+ }
+ AliPHOSLoader* phosLoader = dynamic_cast<AliPHOSLoader*>(rn->GetLoader("PHOSLoader"));
+ if (phosLoader == 0x0)
+ {
+ AliError(Form("Cannot find PHOS Loader from Run Loader"));
+ return;
+ }
-// if (!gPad->IsEditable()) return;
-// TH2F * histo = 0 ;
-// TCanvas * histocanvas ;
+ const TClonesArray * digits = phosLoader->Digits() ;
-// switch (event) {
+ switch (event) {
-// case kButton1Down: {
-// AliPHOSDigit * digit ;
-// AliPHOSGeometry * phosgeom = (AliPHOSGeometry *) fGeom ;
-// Int_t iDigit;
-// Int_t relid[4] ;
+ case kButton1Down: {
+ AliPHOSDigit * digit ;
+ Int_t iDigit;
+ Int_t relid[4] ;
-// const Int_t kMulDigit = AliPHOSEmcRecPoint::GetDigitsMultiplicity() ;
-// Float_t * xi = new Float_t[kMulDigit] ;
-// Float_t * zi = new Float_t[kMulDigit] ;
+ const Int_t kMulDigit = AliPHOSEmcRecPoint::GetDigitsMultiplicity() ;
+ Float_t * xi = new Float_t[kMulDigit] ;
+ Float_t * zi = new Float_t[kMulDigit] ;
-// // create the histogram for the single cluster
-// // 1. gets histogram boundaries
-// Float_t ximax = -999. ;
-// Float_t zimax = -999. ;
-// Float_t ximin = 999. ;
-// Float_t zimin = 999. ;
+ // create the histogram for the single cluster
+ // 1. gets histogram boundaries
+ Float_t ximax = -999. ;
+ Float_t zimax = -999. ;
+ Float_t ximin = 999. ;
+ Float_t zimin = 999. ;
-// for(iDigit=0; iDigit<kMulDigit; iDigit++) {
-// digit = (AliPHOSDigit *) ( please->GimeDigit(fDigitsList[iDigit]) ) ;
-// phosgeom->AbsToRelNumbering(digit->GetId(), relid) ;
-// phosgeom->RelPosInModule(relid, xi[iDigit], zi[iDigit]);
-// if ( xi[iDigit] > ximax )
-// ximax = xi[iDigit] ;
-// if ( xi[iDigit] < ximin )
-// ximin = xi[iDigit] ;
-// if ( zi[iDigit] > zimax )
-// zimax = zi[iDigit] ;
-// if ( zi[iDigit] < zimin )
-// zimin = zi[iDigit] ;
-// }
-// ximax += phosgeom->GetCrystalSize(0) / 2. ;
-// zimax += phosgeom->GetCrystalSize(2) / 2. ;
-// ximin -= phosgeom->GetCrystalSize(0) / 2. ;
-// zimin -= phosgeom->GetCrystalSize(2) / 2. ;
-// Int_t xdim = (int)( (ximax - ximin ) / phosgeom->GetCrystalSize(0) + 0.5 ) ;
-// Int_t zdim = (int)( (zimax - zimin ) / phosgeom->GetCrystalSize(2) + 0.5 ) ;
+ for(iDigit=0; iDigit<kMulDigit; iDigit++) {
+ digit = (AliPHOSDigit *) digits->At(fDigitsList[iDigit]) ;
+ phosgeom->AbsToRelNumbering(digit->GetId(), relid) ;
+ phosgeom->RelPosInModule(relid, xi[iDigit], zi[iDigit]);
+ if ( xi[iDigit] > ximax )
+ ximax = xi[iDigit] ;
+ if ( xi[iDigit] < ximin )
+ ximin = xi[iDigit] ;
+ if ( zi[iDigit] > zimax )
+ zimax = zi[iDigit] ;
+ if ( zi[iDigit] < zimin )
+ zimin = zi[iDigit] ;
+ }
+ ximax += phosgeom->GetCrystalSize(0) / 2. ;
+ zimax += phosgeom->GetCrystalSize(2) / 2. ;
+ ximin -= phosgeom->GetCrystalSize(0) / 2. ;
+ zimin -= phosgeom->GetCrystalSize(2) / 2. ;
+ Int_t xdim = (int)( (ximax - ximin ) / phosgeom->GetCrystalSize(0) + 0.5 ) ;
+ Int_t zdim = (int)( (zimax - zimin ) / phosgeom->GetCrystalSize(2) + 0.5 ) ;
-// // 2. gets the histogram title
+ // 2. gets the histogram title
-// Text_t title[100] ;
-// sprintf(title,"Energy=%1.2f GeV ; Digits ; %d ", GetEnergy(), GetDigitsMultiplicity()) ;
+ Text_t title[100] ;
+ sprintf(title,"Energy=%1.2f GeV ; Digits ; %d ", GetEnergy(), GetDigitsMultiplicity()) ;
-// if (!histo) {
-// delete histo ;
-// histo = 0 ;
-// }
-// histo = new TH2F("cluster3D", title, xdim, ximin, ximax, zdim, zimin, zimax) ;
+ if (!histo) {
+ delete histo ;
+ histo = 0 ;
+ }
+ histo = new TH2F("cluster3D", title, xdim, ximin, ximax, zdim, zimin, zimax) ;
-// Float_t x, z ;
-// for(iDigit=0; iDigit<kMulDigit; iDigit++) {
-// digit = (AliPHOSDigit *) ( please->GimeDigit(fDigitsList[iDigit]) ) ;
-// phosgeom->AbsToRelNumbering(digit->GetId(), relid) ;
-// phosgeom->RelPosInModule(relid, x, z);
-// histo->Fill(x, z, fEnergyList[iDigit] ) ;
-// }
+ Float_t x, z ;
+ for(iDigit=0; iDigit<kMulDigit; iDigit++) {
+ digit = (AliPHOSDigit *) digits->At(fDigitsList[iDigit]) ;
+ phosgeom->AbsToRelNumbering(digit->GetId(), relid) ;
+ phosgeom->RelPosInModule(relid, x, z);
+ histo->Fill(x, z, fEnergyList[iDigit] ) ;
+ }
-// if (!digitgraph) {
-// digitgraph = new TGraph(kMulDigit,xi,zi);
-// digitgraph-> SetMarkerStyle(5) ;
-// digitgraph-> SetMarkerSize(1.) ;
-// digitgraph-> SetMarkerColor(1) ;
-// digitgraph-> Paint("P") ;
-// }
+ if (!digitgraph) {
+ digitgraph = new TGraph(kMulDigit,xi,zi);
+ digitgraph-> SetMarkerStyle(5) ;
+ digitgraph-> SetMarkerSize(1.) ;
+ digitgraph-> SetMarkerColor(1) ;
+ digitgraph-> Paint("P") ;
+ }
-// Print() ;
-// histocanvas = new TCanvas("cluster", "a single cluster", 600, 500) ;
-// histocanvas->Draw() ;
-// histo->Draw("lego1") ;
+ // Print() ;
+ histocanvas = new TCanvas("cluster", "a single cluster", 600, 500) ;
+ histocanvas->Draw() ;
+ histo->Draw("lego1") ;
-// delete[] xi ;
-// delete[] zi ;
+ delete[] xi ;
+ delete[] zi ;
-// break;
-// }
+ break;
+ }
-// case kButton1Up:
-// if (digitgraph) {
-// delete digitgraph ;
-// digitgraph = 0 ;
-// }
-// break;
+ case kButton1Up:
+ if (digitgraph) {
+ delete digitgraph ;
+ digitgraph = 0 ;
+ }
+ break;
-// }
+ }
}
//____________________________________________________________________________
-void AliPHOSEmcRecPoint::EvalDispersion(Float_t logWeight,TClonesArray * digits)
+void AliPHOSEmcRecPoint::EvalDispersion(Float_t logWeight,TClonesArray * digits, TVector3 & /* vInc */)
{
// Calculates the dispersion of the shower at the origine of the RecPoint
+ //DP: should we correct dispersion for non-perpendicular hit????????
+
+ Float_t d = 0. ;
+ Float_t wtot = 0. ;
- Float_t d = 0 ;
- Float_t wtot = 0 ;
-
- TVector3 locpos;
- GetLocalPosition(locpos);
- Float_t x = locpos.X() ;
- Float_t z = locpos.Z() ;
+ Float_t x = 0.;
+ Float_t z = 0.;
AliPHOSDigit * digit ;
- AliPHOSGeometry * phosgeom = (AliPHOSGeometry *) fGeom ;
+
+ AliPHOSGeometry * phosgeom = AliPHOSGeometry::GetInstance();
+
+ // Calculates the center of gravity in the local PHOS-module coordinates
Int_t iDigit;
+
+ for(iDigit=0; iDigit<fMulDigit; iDigit++) {
+ digit = (AliPHOSDigit *) digits->At(fDigitsList[iDigit]) ;
+ Int_t relid[4] ;
+ Float_t xi ;
+ Float_t zi ;
+ phosgeom->AbsToRelNumbering(digit->GetId(), relid) ;
+ phosgeom->RelPosInModule(relid, xi, zi);
+ if (fAmp>0 && fEnergyList[iDigit]>0) {
+ Float_t w = TMath::Max( 0., logWeight + TMath::Log( fEnergyList[iDigit] / fAmp ) ) ;
+ x += xi * w ;
+ z += zi * w ;
+ wtot += w ;
+ }
+ else
+ AliError(Form("Wrong energy %f and/or amplitude %f\n", fEnergyList[iDigit], fAmp));
+ }
+ if (wtot>0) {
+ x /= wtot ;
+ z /= wtot ;
+ }
+ else
+ AliError(Form("Wrong weight %f\n", wtot));
+
+
+// Calculates the dispersion in coordinates
+ wtot = 0.;
for(iDigit=0; iDigit < fMulDigit; iDigit++) {
digit = (AliPHOSDigit *) digits->At(fDigitsList[iDigit]) ;
Int_t relid[4] ;
Float_t zi ;
phosgeom->AbsToRelNumbering(digit->GetId(), relid) ;
phosgeom->RelPosInModule(relid, xi, zi);
- Float_t w = TMath::Max(0.,logWeight+TMath::Log(fEnergyList[iDigit]/fAmp ) ) ;
- d += w*((xi-x)*(xi-x) + (zi-z)*(zi-z) ) ;
- wtot+=w ;
+ if (fAmp>0 && fEnergyList[iDigit]>0) {
+ Float_t w = TMath::Max(0.,logWeight+TMath::Log(fEnergyList[iDigit]/fAmp ) ) ;
+ d += w*((xi-x)*(xi-x) + (zi-z)*(zi-z) ) ;
+ wtot+=w ;
+ }
+ else
+ AliError(Form("Wrong energy %f and/or amplitude %f\n", fEnergyList[iDigit], fAmp));
}
+
+ if (wtot>0) {
+ d /= wtot ;
+ }
+ else
+ AliError(Form("Wrong weight %f\n", wtot));
- d /= wtot ;
+ fDispersion = 0;
+ if (d>=0)
+ fDispersion = TMath::Sqrt(d) ;
- fDispersion = TMath::Sqrt(d) ;
+
}
//______________________________________________________________________________
-void AliPHOSEmcRecPoint::EvalCoreEnergy(TClonesArray * digits)
+void AliPHOSEmcRecPoint::EvalCoreEnergy(Float_t logWeight, Float_t coreRadius, TClonesArray * digits)
{
- //This function calculates energy in the core,
- //i.e. within radius rad = 3cm. Beyond this radius
- //in accoradnce with shower profile energy deposition
+ // This function calculates energy in the core,
+ // i.e. within a radius rad = 3cm around the center. Beyond this radius
+ // in accordance with shower profile the energy deposition
// should be less than 2%
+//DP: non-perpendicular incidence??????????????
- Float_t coreRadius = 3 ;
-
- TVector3 locpos;
- GetLocalPosition(locpos);
- Float_t x = locpos.X() ;
- Float_t z = locpos.Z() ;
+ Float_t x = 0 ;
+ Float_t z = 0 ;
AliPHOSDigit * digit ;
- AliPHOSGeometry * phosgeom = (AliPHOSGeometry *) fGeom ;
-
+
+ AliPHOSGeometry * phosgeom = AliPHOSGeometry::GetInstance();
+
Int_t iDigit;
+
+// Calculates the center of gravity in the local PHOS-module coordinates
+ Float_t wtot = 0;
+ for(iDigit=0; iDigit<fMulDigit; iDigit++) {
+ digit = (AliPHOSDigit *) digits->At(fDigitsList[iDigit]) ;
+ Int_t relid[4] ;
+ Float_t xi ;
+ Float_t zi ;
+ phosgeom->AbsToRelNumbering(digit->GetId(), relid) ;
+ phosgeom->RelPosInModule(relid, xi, zi);
+ if (fAmp>0 && fEnergyList[iDigit]>0) {
+ Float_t w = TMath::Max( 0., logWeight + TMath::Log( fEnergyList[iDigit] / fAmp ) ) ;
+ x += xi * w ;
+ z += zi * w ;
+ wtot += w ;
+ }
+ else
+ AliError(Form("Wrong energy %f and/or amplitude %f\n", fEnergyList[iDigit], fAmp));
+ }
+ if (wtot>0) {
+ x /= wtot ;
+ z /= wtot ;
+ }
+ else
+ AliError(Form("Wrong weight %f\n", wtot));
+
+
for(iDigit=0; iDigit < fMulDigit; iDigit++) {
digit = (AliPHOSDigit *) ( digits->At(fDigitsList[iDigit]) ) ;
Int_t relid[4] ;
fCoreEnergy += fEnergyList[iDigit] ;
}
+
}
//____________________________________________________________________________
-void AliPHOSEmcRecPoint::EvalElipsAxis(Float_t logWeight,TClonesArray * digits)
+void AliPHOSEmcRecPoint::EvalElipsAxis(Float_t logWeight,TClonesArray * digits, TVector3 & /* vInc */)
{
// Calculates the axis of the shower ellipsoid
Double_t dxz = 0.;
AliPHOSDigit * digit ;
- AliPHOSGeometry * phosgeom = (AliPHOSGeometry *) fGeom ;
+
+ AliPHOSGeometry * phosgeom = AliPHOSGeometry::GetInstance();
+
Int_t iDigit;
+
for(iDigit=0; iDigit<fMulDigit; iDigit++) {
digit = (AliPHOSDigit *) digits->At(fDigitsList[iDigit]) ;
Int_t relid[4] ;
Float_t zi ;
phosgeom->AbsToRelNumbering(digit->GetId(), relid) ;
phosgeom->RelPosInModule(relid, xi, zi);
- Double_t w = TMath::Max(0.,logWeight+TMath::Log(fEnergyList[iDigit]/fAmp ) ) ;
- dxx += w * xi * xi ;
- x += w * xi ;
- dzz += w * zi * zi ;
- z += w * zi ;
- dxz += w * xi * zi ;
- wtot += w ;
+ if (fAmp>0 && fEnergyList[iDigit]>0) {
+ Double_t w = TMath::Max(0.,logWeight+TMath::Log(fEnergyList[iDigit]/fAmp ) ) ;
+ dxx += w * xi * xi ;
+ x += w * xi ;
+ dzz += w * zi * zi ;
+ z += w * zi ;
+ dxz += w * xi * zi ;
+ wtot += w ;
+ }
+ else
+ AliError(Form("Wrong energy %f and/or amplitude %f\n", fEnergyList[iDigit], fAmp));
}
- dxx /= wtot ;
- x /= wtot ;
- dxx -= x * x ;
- dzz /= wtot ;
- z /= wtot ;
- dzz -= z * z ;
- dxz /= wtot ;
- dxz -= x * z ;
+ if (wtot>0) {
+ dxx /= wtot ;
+ x /= wtot ;
+ dxx -= x * x ;
+ dzz /= wtot ;
+ z /= wtot ;
+ dzz -= z * z ;
+ dxz /= wtot ;
+ dxz -= x * z ;
// //Apply correction due to non-perpendicular incidence
// Double_t CosX ;
// Double_t CosZ ;
-// Double_t DistanceToIP= (Double_t ) ((AliPHOSGeometry *) fGeom)->GetIPtoCrystalSurface() ;
+// AliPHOSGeometry * phosgeom = AliPHOSGeometry::GetInstance() ;
+// Double_t DistanceToIP= (Double_t ) phosgeom->GetIPtoCrystalSurface() ;
// CosX = DistanceToIP/TMath::Sqrt(DistanceToIP*DistanceToIP+x*x) ;
// CosZ = DistanceToIP/TMath::Sqrt(DistanceToIP*DistanceToIP+z*z) ;
// dxz = dxz/(CosX*CosZ) ;
- fLambda[0] = 0.5 * (dxx + dzz) + TMath::Sqrt( 0.25 * (dxx - dzz) * (dxx - dzz) + dxz * dxz ) ;
- if(fLambda[0] > 0)
- fLambda[0] = TMath::Sqrt(fLambda[0]) ;
+ fLambda[0] = 0.5 * (dxx + dzz) + TMath::Sqrt( 0.25 * (dxx - dzz) * (dxx - dzz) + dxz * dxz ) ;
+ if(fLambda[0] > 0)
+ fLambda[0] = TMath::Sqrt(fLambda[0]) ;
+
+ fLambda[1] = 0.5 * (dxx + dzz) - TMath::Sqrt( 0.25 * (dxx - dzz) * (dxx - dzz) + dxz * dxz ) ;
+ if(fLambda[1] > 0) //To avoid exception if numerical errors lead to negative lambda.
+ fLambda[1] = TMath::Sqrt(fLambda[1]) ;
+ else
+ fLambda[1]= 0. ;
+ }
+ else {
+ AliError(Form("Wrong weight %f\n", wtot));
+ fLambda[0]=fLambda[1]=0.;
+ }
+}
+
+//____________________________________________________________________________
+void AliPHOSEmcRecPoint::EvalMoments(Float_t logWeight,TClonesArray * digits, TVector3 & /* vInc */)
+{
+ // Calculate the shower moments in the eigen reference system
+ // M2x, M2z, M3x, M4z
+ // Calculate the angle between the shower position vector and the eigen vector
+
+ Double_t wtot = 0. ;
+ Double_t x = 0.;
+ Double_t z = 0.;
+ Double_t dxx = 0.;
+ Double_t dzz = 0.;
+ Double_t dxz = 0.;
+ Double_t lambda0=0, lambda1=0;
- fLambda[1] = 0.5 * (dxx + dzz) - TMath::Sqrt( 0.25 * (dxx - dzz) * (dxx - dzz) + dxz * dxz ) ;
- if(fLambda[1] > 0) //To avoid exception if numerical errors lead to negative lambda.
- fLambda[1] = TMath::Sqrt(fLambda[1]) ;
+ AliPHOSDigit * digit ;
+
+ AliPHOSGeometry * phosgeom = AliPHOSGeometry::GetInstance() ;
+
+ Int_t iDigit;
+
+ // 1) Find covariance matrix elements:
+ // || dxx dxz ||
+ // || dxz dzz ||
+
+ Float_t xi ;
+ Float_t zi ;
+ Int_t relid[4] ;
+ Double_t w;
+ for(iDigit=0; iDigit<fMulDigit; iDigit++) {
+ digit = (AliPHOSDigit *) digits->At(fDigitsList[iDigit]) ;
+ phosgeom->AbsToRelNumbering(digit->GetId(), relid) ;
+ phosgeom->RelPosInModule(relid, xi, zi);
+ if (fAmp>0 && fEnergyList[iDigit]>0) {
+ w = TMath::Max(0.,logWeight+TMath::Log(fEnergyList[iDigit]/fAmp ) ) ;
+ x += w * xi ;
+ z += w * zi ;
+ dxx += w * xi * xi ;
+ dzz += w * zi * zi ;
+ dxz += w * xi * zi ;
+ wtot += w ;
+ }
+ else
+ AliError(Form("Wrong energy %f and/or amplitude %f\n", fEnergyList[iDigit], fAmp));
+
+ }
+ if (wtot>0) {
+ x /= wtot ;
+ z /= wtot ;
+ dxx /= wtot ;
+ dzz /= wtot ;
+ dxz /= wtot ;
+ dxx -= x * x ;
+ dzz -= z * z ;
+ dxz -= x * z ;
+
+ // 2) Find covariance matrix eigen values lambda0 and lambda1
+
+ lambda0 = 0.5 * (dxx + dzz) + TMath::Sqrt( 0.25 * (dxx - dzz) * (dxx - dzz) + dxz * dxz ) ;
+ lambda1 = 0.5 * (dxx + dzz) - TMath::Sqrt( 0.25 * (dxx - dzz) * (dxx - dzz) + dxz * dxz ) ;
+ }
+ else {
+ AliError(Form("Wrong weight %f\n", wtot));
+ lambda0=lambda1=0.;
+ }
+
+ // 3) Find covariance matrix eigen vectors e0 and e1
+
+ TVector2 e0,e1;
+ if (dxz != 0)
+ e0.Set(1.,(lambda0-dxx)/dxz);
+ else
+ e0.Set(0.,1.);
+
+ e0 = e0.Unit();
+ e1.Set(-e0.Y(),e0.X());
+
+ // 4) Rotate cluster tensor from (x,z) to (e0,e1) system
+ // and calculate moments M3x and M4z
+
+ Float_t cosPhi = e0.X();
+ Float_t sinPhi = e0.Y();
+
+ Float_t xiPHOS ;
+ Float_t ziPHOS ;
+ Double_t dx3, dz3, dz4;
+ wtot = 0.;
+ x = 0.;
+ z = 0.;
+ dxx = 0.;
+ dzz = 0.;
+ dxz = 0.;
+ dx3 = 0.;
+ dz3 = 0.;
+ dz4 = 0.;
+ for(iDigit=0; iDigit<fMulDigit; iDigit++) {
+ digit = (AliPHOSDigit *) digits->At(fDigitsList[iDigit]) ;
+ phosgeom->AbsToRelNumbering(digit->GetId(), relid) ;
+ phosgeom->RelPosInModule(relid, xiPHOS, ziPHOS);
+ xi = xiPHOS*cosPhi + ziPHOS*sinPhi;
+ zi = ziPHOS*cosPhi - xiPHOS*sinPhi;
+ if (fAmp>0 && fEnergyList[iDigit]>0) {
+ w = TMath::Max(0.,logWeight+TMath::Log(fEnergyList[iDigit]/fAmp ) ) ;
+ x += w * xi ;
+ z += w * zi ;
+ dxx += w * xi * xi ;
+ dzz += w * zi * zi ;
+ dxz += w * xi * zi ;
+ dx3 += w * xi * xi * xi;
+ dz3 += w * zi * zi * zi ;
+ dz4 += w * zi * zi * zi * zi ;
+ wtot += w ;
+ }
+ else
+ AliError(Form("Wrong energy %f and/or amplitude %f\n", fEnergyList[iDigit], fAmp));
+ }
+ if (wtot>0) {
+ x /= wtot ;
+ z /= wtot ;
+ dxx /= wtot ;
+ dzz /= wtot ;
+ dxz /= wtot ;
+ dx3 /= wtot ;
+ dz3 /= wtot ;
+ dz4 /= wtot ;
+ dx3 += -3*dxx*x + 2*x*x*x;
+ dz4 += -4*dz3*z + 6*dzz*z*z -3*z*z*z*z;
+ dxx -= x * x ;
+ dzz -= z * z ;
+ dxz -= x * z ;
+ }
else
- fLambda[1]= 0. ;
+ AliError(Form("Wrong weight %f\n", wtot));
+
+ // 5) Find an angle between cluster center vector and eigen vector e0
+
+ Float_t phi = 0;
+ if ( (x*x+z*z) > 0 )
+ phi = TMath::ACos ((x*e0.X() + z*e0.Y()) / sqrt(x*x + z*z));
+
+ fM2x = lambda0;
+ fM2z = lambda1;
+ fM3x = dx3;
+ fM4z = dz4;
+ fPhixe = phi;
+
}
+//______________________________________________________________________________
+void AliPHOSEmcRecPoint::EvalPrimaries(TClonesArray * digits)
+{
+ // Constructs the list of primary particles (tracks) which have contributed to this RecPoint
+
+ AliPHOSDigit * digit ;
+ Int_t * tempo = new Int_t[fMaxTrack] ;
+
+ //First find digit with maximal energy deposition and copy its primaries
+ Float_t emax=0.;
+ Int_t imaxDigit=0;
+ for(Int_t id=0; id<GetDigitsMultiplicity(); id++){
+ if(emax<fEnergyList[id])
+ imaxDigit=id ;
+ }
+ digit = dynamic_cast<AliPHOSDigit *>(digits->At( fDigitsList[imaxDigit] )) ;
+ Int_t nprimaries = digit->GetNprimary() ;
+ if ( nprimaries > fMaxTrack ) {
+ fMulTrack = - 1 ;
+ Error("EvalPrimaries", "GetNprimaries ERROR > increase fMaxTrack" ) ;
+ nprimaries = fMaxTrack; //skip the rest
+ }
+ for(fMulTrack=0; fMulTrack<nprimaries ; fMulTrack++){
+ tempo[fMulTrack] = digit->GetPrimary(fMulTrack+1) ;
+ }
+ //Now add other digits contributions
+ for (Int_t index = 0 ; index < GetDigitsMultiplicity() ; index++ ) { // all digits
+ if(index==imaxDigit) //already in
+ continue ;
+ digit = dynamic_cast<AliPHOSDigit *>(digits->At( fDigitsList[index] )) ;
+ nprimaries = digit->GetNprimary() ;
+ for(Int_t ipr=0; ipr<nprimaries; ipr++){
+ Int_t iprimary = digit->GetPrimary(ipr+1) ;
+ Bool_t notIn=1 ;
+ for(Int_t kndex = 0 ; (kndex < fMulTrack)&& notIn ; kndex++ ) { //check if not already stored
+ if(iprimary == tempo[kndex]){
+ notIn = kFALSE ;
+ }
+ }
+ if(notIn){
+ if(fMulTrack<fMaxTrack){
+ tempo[fMulTrack]=iprimary ;
+ fMulTrack++ ;
+ }
+ else{
+ Error("EvalPrimaries", "GetNprimaries ERROR > increase fMaxTrack!!!" ) ;
+ break ;
+ }
+ }
+ }
+ } // all digits
+ if(fMulTrack > 0){
+ if(fTracksList)delete [] fTracksList;
+ fTracksList = new Int_t[fMulTrack] ;
+ }
+ for(Int_t index = 0; index < fMulTrack; index++)
+ fTracksList[index] = tempo[index] ;
+
+ delete [] tempo ;
+
+}
+
+//____________________________________________________________________________
+void AliPHOSEmcRecPoint::EvalAll(TClonesArray * digits )
+{
+// EvalCoreEnergy(logWeight, digits);
+ EvalTime(digits) ;
+ EvalPrimaries(digits) ;
+ AliPHOSRecPoint::EvalAll(digits) ;
+}
//____________________________________________________________________________
-void AliPHOSEmcRecPoint::EvalAll(Float_t logWeight, TClonesArray * digits )
+void AliPHOSEmcRecPoint::EvalAll(Float_t logWeight, TVector3 &vtx, TClonesArray * digits )
{
- AliPHOSRecPoint::EvalAll(logWeight,digits) ;
- EvalLocalPosition(logWeight, digits) ;
- EvalElipsAxis(logWeight, digits) ;
- EvalDispersion(logWeight, digits) ;
- EvalCoreEnergy(digits);
+ // Evaluates all shower parameters
+ TVector3 vInc ;
+ EvalLocalPosition(logWeight, vtx, digits,vInc) ;
+ EvalElipsAxis(logWeight, digits, vInc) ; //they are evaluated with momenta
+ EvalMoments(logWeight, digits, vInc) ;
+ EvalDispersion(logWeight, digits, vInc) ;
}
//____________________________________________________________________________
-void AliPHOSEmcRecPoint::EvalLocalPosition(Float_t logWeight, TClonesArray * digits)
+void AliPHOSEmcRecPoint::EvalLocalPosition(Float_t logWeight, TVector3 &vtx, TClonesArray * digits, TVector3 &vInc)
{
// Calculates the center of gravity in the local PHOS-module coordinates
-
Float_t wtot = 0. ;
Int_t relid[4] ;
AliPHOSDigit * digit ;
- AliPHOSGeometry * phosgeom = (AliPHOSGeometry *) fGeom ;
+ AliPHOSGeometry * phosgeom = AliPHOSGeometry::GetInstance() ;
Int_t iDigit;
Float_t zi ;
phosgeom->AbsToRelNumbering(digit->GetId(), relid) ;
phosgeom->RelPosInModule(relid, xi, zi);
- Float_t w = TMath::Max( 0., logWeight + TMath::Log( fEnergyList[iDigit] / fAmp ) ) ;
- x += xi * w ;
- z += zi * w ;
- wtot += w ;
-
+ if (fAmp>0 && fEnergyList[iDigit]>0) {
+ Float_t w = TMath::Max( 0., logWeight + TMath::Log( fEnergyList[iDigit] / fAmp ) ) ;
+ x += xi * w ;
+ z += zi * w ;
+ wtot += w ;
+ }
+ else
+ AliError(Form("Wrong energy %f and/or amplitude %f\n", fEnergyList[iDigit], fAmp));
}
-
- x /= wtot ;
- z /= wtot ;
+ if (wtot>0) {
+ x /= wtot ;
+ z /= wtot ;
+ }
+ else
+ AliError(Form("Wrong weight %f\n", wtot));
// Correction for the depth of the shower starting point (TDR p 127)
Float_t para = 0.925 ;
Float_t parb = 6.52 ;
- Float_t xo,yo,zo ; //Coordinates of the origin
- gAlice->Generator()->GetOrigin(xo,yo,zo) ;
-
- Float_t phi = phosgeom->GetPHOSAngle(relid[0]) ;
+ phosgeom->GetIncidentVector(vtx,GetPHOSMod(),x,z,vInc) ;
- //Transform to the local ref.frame
- Float_t xoL,yoL ;
- xoL = xo*TMath::Cos(phi)-yo*TMath::Sin(phi) ;
- yoL = xo*TMath::Sin(phi)+yo*TMath::Cos(phi) ;
-
- Float_t radius = TMath::Sqrt((xoL-x)*(xoL-x)+
- (phosgeom->GetIPtoCrystalSurface()-yoL)*(phosgeom->GetIPtoCrystalSurface()-yoL)+
- (zo-z)*(zo-z));
-
- Float_t incidencephi = TMath::ATan((x-xoL ) / radius) ;
- Float_t incidencetheta = TMath::ATan((z-zo) / radius) ;
-
- Float_t depthx = ( para * TMath::Log(fAmp) + parb ) * TMath::Sin(incidencephi) ;
- Float_t depthz = ( para * TMath::Log(fAmp) + parb ) * TMath::Sin(incidencetheta) ;
-
+ Float_t depthx = 0.;
+ Float_t depthz = 0.;
+ if (fAmp>0&&vInc.Y()!=0.) {
+ depthx = ( para * TMath::Log(fAmp) + parb ) * vInc.X()/TMath::Abs(vInc.Y()) ;
+ depthz = ( para * TMath::Log(fAmp) + parb ) * vInc.Z()/TMath::Abs(vInc.Y()) ;
+ }
+ else
+ AliError(Form("Wrong amplitude %f\n", fAmp));
fLocPos.SetX(x - depthx) ;
fLocPos.SetY(0.) ;
}
//____________________________________________________________________________
-Int_t AliPHOSEmcRecPoint::GetMultiplicityAtLevel(const Float_t H) const
+Int_t AliPHOSEmcRecPoint::GetMultiplicityAtLevel(Float_t H) const
{
// Calculates the multiplicity of digits with energy larger than H*energy
}
//____________________________________________________________________________
-Int_t AliPHOSEmcRecPoint::GetNumberOfLocalMax(Int_t * maxAt, Float_t * maxAtEnergy,
+Int_t AliPHOSEmcRecPoint::GetNumberOfLocalMax( AliPHOSDigit ** maxAt, Float_t * maxAtEnergy,
Float_t locMaxCut,TClonesArray * digits) const
{
// Calculates the number of local maxima in the cluster using fLocalMaxCut as the minimum
- // energy difference between two local maxima
+ // energy difference between two local maxima
AliPHOSDigit * digit ;
AliPHOSDigit * digitN ;
Int_t iDigit ;
for(iDigit = 0; iDigit < fMulDigit; iDigit++)
- maxAt[iDigit] = (Int_t) digits->At(fDigitsList[iDigit]) ;
+ maxAt[iDigit] = (AliPHOSDigit*) digits->At(fDigitsList[iDigit]) ;
for(iDigit = 0 ; iDigit < fMulDigit; iDigit++) {
- if(maxAt[iDigit] != -1) {
- digit = (AliPHOSDigit *) maxAt[iDigit] ;
+ if(maxAt[iDigit]) {
+ digit = maxAt[iDigit] ;
for(iDigitN = 0; iDigitN < fMulDigit; iDigitN++) {
+ if(iDigit == iDigitN)
+ continue ;
+
digitN = (AliPHOSDigit *) digits->At(fDigitsList[iDigitN]) ;
if ( AreNeighbours(digit, digitN) ) {
if (fEnergyList[iDigit] > fEnergyList[iDigitN] ) {
- maxAt[iDigitN] = -1 ;
+ maxAt[iDigitN] = 0 ;
// but may be digit too is not local max ?
if(fEnergyList[iDigit] < fEnergyList[iDigitN] + locMaxCut)
- maxAt[iDigit] = -1 ;
+ maxAt[iDigit] = 0 ;
}
else {
- maxAt[iDigit] = -1 ;
+ maxAt[iDigit] = 0 ;
// but may be digitN too is not local max ?
if(fEnergyList[iDigit] > fEnergyList[iDigitN] - locMaxCut)
- maxAt[iDigitN] = -1 ;
+ maxAt[iDigitN] = 0 ;
}
} // if Areneighbours
} // while digitN
iDigitN = 0 ;
for(iDigit = 0; iDigit < fMulDigit; iDigit++) {
- if(maxAt[iDigit] != -1){
+ if(maxAt[iDigit]){
maxAt[iDigitN] = maxAt[iDigit] ;
maxAtEnergy[iDigitN] = fEnergyList[iDigit] ;
iDigitN++ ;
}
return iDigitN ;
}
+//____________________________________________________________________________
+void AliPHOSEmcRecPoint::EvalTime(TClonesArray * digits)
+{
+ // Define a rec.point time as a time in the cell with the maximum energy
+
+ Float_t maxE = 0;
+ Int_t maxAt = 0;
+ for(Int_t idig=0; idig < fMulDigit; idig++){
+ if(fEnergyList[idig] > maxE){
+ maxE = fEnergyList[idig] ;
+ maxAt = idig;
+ }
+ }
+ fTime = ((AliPHOSDigit*) digits->At(fDigitsList[maxAt]))->GetTime() ;
+
+}
+//____________________________________________________________________________
+void AliPHOSEmcRecPoint::Purify(Float_t threshold){
+ //Removes digits below threshold
+
+ Int_t * tempo = new Int_t[fMaxDigit];
+ Float_t * tempoE = new Float_t[fMaxDigit];
+
+ Int_t mult = 0 ;
+ for(Int_t iDigit=0;iDigit< fMulDigit ;iDigit++){
+ if(fEnergyList[iDigit] > threshold){
+ tempo[mult] = fDigitsList[iDigit] ;
+ tempoE[mult] = fEnergyList[iDigit] ;
+ mult++ ;
+ }
+ }
+
+ fMulDigit = mult ;
+ delete [] fDigitsList ;
+ delete [] fEnergyList ;
+ fDigitsList = new Int_t[fMulDigit];
+ fEnergyList = new Float_t[fMulDigit];
+
+ fAmp = 0.; //Recalculate total energy
+ for(Int_t iDigit=0;iDigit< fMulDigit ;iDigit++){
+ fDigitsList[iDigit] = tempo[iDigit];
+ fEnergyList[iDigit] = tempoE[iDigit] ;
+ fAmp+=tempoE[iDigit];
+ }
+
+ delete [] tempo ;
+ delete [] tempoE ;
-
-
+}
//____________________________________________________________________________
-void AliPHOSEmcRecPoint::Print(Option_t * option)
+void AliPHOSEmcRecPoint::Print(Option_t *) const
{
// Print the list of digits belonging to the cluster
- cout << "AliPHOSEmcRecPoint: " << endl ;
+ TString message ;
+ message = "AliPHOSEmcRecPoint:\n" ;
+ message += "Digit multiplicity = %d" ;
+ message += ", cluster Energy = %f" ;
+ message += ", number of primaries = %d" ;
+ message += ", rec.point index = %d \n" ;
+ printf(message.Data(), fMulDigit, fAmp, fMulTrack,GetIndexInList() ) ;
Int_t iDigit;
- cout << " digits # = " ;
+ printf(" digits ids = ") ;
for(iDigit=0; iDigit<fMulDigit; iDigit++)
- cout << fDigitsList[iDigit] << " " ;
- cout << endl ;
+ printf(" %d ", fDigitsList[iDigit] ) ;
- cout << " Energies = " ;
+ printf("\n digit energies = ") ;
for(iDigit=0; iDigit<fMulDigit; iDigit++)
- cout << fEnergyList[iDigit] << " ";
- cout << endl ;
-
- cout << " Multiplicity = " << fMulDigit << endl ;
- cout << " Cluster Energy = " << fAmp << endl ;
- cout << " Stored at position " << GetIndexInList() << endl ;
-
+ printf(" %f ", fEnergyList[iDigit] ) ;
+
+ printf("\n digit primaries ") ;
+ if (fMulTrack<1) printf("... no primaries");
+ for(iDigit = 0;iDigit < fMulTrack; iDigit++)
+ printf(" %d ", fTracksList[iDigit]) ;
+ printf("\n") ;
+
}
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff