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[u/mrichter/AliRoot.git] / MUON / AliMUONClusterInput.cxx
index 3e786cf55f487b5768721704c033da351e06e290..7c47e9718b84ed8bfa16332d21b95cf7443c3942 100644 (file)
  * provided "as is" without express or implied warranty.                  *
  **************************************************************************/
 
-/*
-$Log$
-*/
-#include "AliRun.h"
-#include "AliMUON.h"
-#include "AliMUONChamber.h"
+/* $Id$ */
+
+// ----------------------------
+// Class AliMUONClusterInput
+// ----------------------------
+// Global data service for hit reconstruction
+// Author: to be added
+
 #include "AliMUONClusterInput.h"
+
+#include "AliMUONGeometryTransformer.h"
+#include "AliMUONGeometrySegmentation.h"
+#include "AliMUONSegFactory.h"
 #include "AliMUONSegmentation.h"
-#include "AliMUONResponse.h"
+#include "AliMUONConstants.h"
+#include "AliMUONMathieson.h"
 #include "AliMUONRawCluster.h"
 #include "AliMUONDigit.h"
 
+#include "AliLog.h"
+
 #include <TClonesArray.h>
 #include <TMinuit.h>
+#include <TGeoManager.h>
 
+/// \cond CLASSIMP
 ClassImp(AliMUONClusterInput)
+/// \endcond
 
-AliMUONClusterInput* AliMUONClusterInput::fgClusterInput = 0; 
-TMinuit* AliMUONClusterInput::fgMinuit = 0; 
+AliMUONClusterInput*        AliMUONClusterInput::fgClusterInput = 0; 
+TMinuit*                    AliMUONClusterInput::fgMinuit = 0; 
+AliMUONMathieson*           AliMUONClusterInput::fgMathieson = 0; 
+AliMUONGeometryTransformer* AliMUONClusterInput::fgTransformer = 0; 
+AliMUONSegmentation*        AliMUONClusterInput::fgSegmentation = 0; 
 
+//______________________________________________________________________________
+AliMUONClusterInput::AliMUONClusterInput()
+  : TObject(),
+    fNseg(0),
+    fChamber(0),
+    fCluster(0),
+    fZ(0.),
+    fChargeCorrel(1.),
+    fDetElemId(0)
+  
+{
+/// Default constructor
+
+  fDigits[0]=0;
+  fDigits[1]=0;
+  fSegmentation2[0]=0;
+  fSegmentation2[1]=0;
+}
+
+//______________________________________________________________________________
 AliMUONClusterInput* AliMUONClusterInput::Instance()
 {
-// return pointer to the singleton instance
+/// return pointer to the singleton instance
     if (fgClusterInput == 0) {
        fgClusterInput = new AliMUONClusterInput();
-       fgMinuit = new TMinuit(5);
+       fgMinuit = new TMinuit(8);
+       
+       // Create segmentation with activated Root geometry  
+       if ( ! gGeoManager ) {
+         AliFatalClass("Geometry not loaded.");
+         return fgClusterInput;
+       }  
+        fgTransformer = new AliMUONGeometryTransformer(true);
+        fgTransformer->ReadGeometryData("volpath.dat", gGeoManager);
+        AliMUONSegFactory factory(fgTransformer);
+       fgSegmentation = factory.CreateSegmentation(); 
     }
     
     return fgClusterInput;
 }
 
-void AliMUONClusterInput::SetDigits(Int_t chamber, TClonesArray* dig1, TClonesArray* dig2)
+//______________________________________________________________________________
+AliMUONClusterInput::~AliMUONClusterInput()
 {
-// Set pointer to digits with corresponding segmentations and responses (two cathode planes)
-    fDigits[0]=dig1;
-    fDigits[1]=dig2; 
-    AliMUON *pMUON;
-    AliMUONChamber* iChamber;
-
-    pMUON = (AliMUON*) gAlice->GetModule("MUON");
-    iChamber =  &(pMUON->Chamber(chamber));
-
-    fSegmentation[0]=iChamber->SegmentationModel(1);
-    fSegmentation[1]=iChamber->SegmentationModel(2);
-    fResponse=iChamber->ResponseModel();
+/// Destructor
+    delete fgMinuit;
+    delete fgMathieson;
+    delete fgTransformer;
+    delete fgSegmentation;
+    fgMinuit = 0;
+    fgMathieson = 0;
+}
+
+//______________________________________________________________________________
+void AliMUONClusterInput::SetDigits(Int_t chamber, Int_t idDE, TClonesArray* dig1, TClonesArray* dig2)
+{
+  /// Set pointer to digits with corresponding segmentations and responses (two cathode planes)
+    fChamber = chamber;
+    fDetElemId = idDE;
+    fDigits[0]  = dig1;
+    fDigits[1]  = dig2; 
+    fNDigits[0] = dig1->GetEntriesFast();
+    fNDigits[1] = dig2->GetEntriesFast();
+    
+    delete fgMathieson;
+    fgMathieson = new AliMUONMathieson();
+
+    fSegmentation2[0]= fgSegmentation->GetModuleSegmentationByDEId(fDetElemId, 0);
+    fSegmentation2[1]= fgSegmentation->GetModuleSegmentationByDEId(fDetElemId, 1);
+
     fNseg = 2;
+    if (chamber < AliMUONConstants::NTrackingCh()) {
+      if (chamber > 1 ) {
+       fgMathieson->SetPitch(AliMUONConstants::Pitch());
+       fgMathieson->SetSqrtKx3AndDeriveKx2Kx4(AliMUONConstants::SqrtKx3());
+       fgMathieson->SetSqrtKy3AndDeriveKy2Ky4(AliMUONConstants::SqrtKy3());
+       fChargeCorrel = AliMUONConstants::ChargeCorrel();
+      } else {
+       fgMathieson->SetPitch(AliMUONConstants::PitchSt1());
+       fgMathieson->SetSqrtKx3AndDeriveKx2Kx4(AliMUONConstants::SqrtKx3St1());
+       fgMathieson->SetSqrtKy3AndDeriveKy2Ky4(AliMUONConstants::SqrtKy3St1());
+       fChargeCorrel = AliMUONConstants::ChargeCorrelSt1();
+      }
+    }
 }
 
-void AliMUONClusterInput::SetDigits(Int_t chamber, TClonesArray* dig)
+//______________________________________________________________________________
+void AliMUONClusterInput::SetDigits(Int_t chamber, Int_t idDE, TClonesArray* dig)
 {
-// Set pointer to digits with corresponding segmentations and responses (one cathode plane)
-    fDigits[0]=dig;
-    AliMUON *pMUON;
-    AliMUONChamber* iChamber;
+/// Set pointer to digits with corresponding segmentations and responses (one cathode plane)
 
-    pMUON = (AliMUON*) gAlice->GetModule("MUON");
-    iChamber =  &(pMUON->Chamber(chamber));
+    fChamber = chamber;
+    fDetElemId = idDE;
+    fDigits[0] = dig;
 
-    fSegmentation[0]=iChamber->SegmentationModel(1);
-    fResponse=iChamber->ResponseModel();
+    fSegmentation2[0]= fgSegmentation->GetModuleSegmentationByDEId(fDetElemId, 0);
     fNseg=1;
 }
 
+//______________________________________________________________________________
 void  AliMUONClusterInput::SetCluster(AliMUONRawCluster* cluster)
 {
-// Set the current cluster
-    fCluster=cluster;
-    Float_t qtot;
-    Int_t   i, cath, ix, iy;
-    AliMUONDigit* digit;
-    fNmul[0]=cluster->fMultiplicity[0];
-    fNmul[1]=cluster->fMultiplicity[1];
-    printf("\n %p %p ", fDigits[0], fDigits[1]);
-    
-    for (cath=0; cath<2; cath++) {
-       qtot=0;
-       for (i=0; i<fNmul[cath]; i++) {
-           // pointer to digit
-           digit =(AliMUONDigit*)
-               (fDigits[cath]->UncheckedAt(cluster->fIndexMap[i][cath]));
+/// Set the current cluster
+  //PH printf("\n %p \n", cluster);
+  fCluster=cluster;
+  Float_t qtot;
+  Int_t   i, cath, ix, iy;
+  AliMUONDigit* digit;
+  fNmul[0]=cluster->GetMultiplicity(0);
+  fNmul[1]=cluster->GetMultiplicity(1);
+  //PH printf("\n %p %p ", fDigits[0], fDigits[1]);
+  
+  for (cath=0; cath<2; cath++) {
+    qtot=0;
+    for (i=0; i<fNmul[cath]; i++) {
+      // pointer to digit
+      digit =(AliMUONDigit*)
+               (fDigits[cath]->UncheckedAt(cluster->GetIndex(i,cath)));
            // pad coordinates
-           ix = digit->fPadX;
-           iy = digit->fPadY;
+           ix = digit->PadX();
+           iy = digit->PadY();
            // pad charge
-           fCharge[i][cath] = digit->fSignal;
+           fCharge[i][cath] = digit->Signal();
            // pad centre coordinates
 //         fSegmentation[cath]->GetPadCxy(ix, iy, x, y);
             // globals kUsed in fitting functions
@@ -105,91 +178,94 @@ void  AliMUONClusterInput::SetCluster(AliMUONRawCluster* cluster)
            fiy[i][cath]=iy;
            // total charge per cluster
            qtot+=fCharge[i][cath];
+           // Current z
+           Float_t xc, yc;
+           fSegmentation2[cath]->GetPadC(fDetElemId,ix,iy,xc,yc,fZ);
        } // loop over cluster digits
        fQtot[cath]=qtot;
        fChargeTot[cath]=Int_t(qtot);  
     }  // loop over cathodes
 }
 
-
-
+//______________________________________________________________________________
 Float_t AliMUONClusterInput::DiscrChargeS1(Int_t i,Double_t *par) 
 {
-// par[0]    x-position of cluster
-// par[1]    y-position of cluster
-
-   fSegmentation[0]->SetPad(fix[i][0], fiy[i][0]);
-//  First Cluster
-   fSegmentation[0]->SetHit(par[0],par[1]);
-   Float_t q1=fResponse->IntXY(fSegmentation[0]);
-    
-   Float_t value = fQtot[0]*q1;
-   return value;
+/// Compute the charge on first cathod only.
+return DiscrChargeCombiS1(i,par,0);
 }
 
+//______________________________________________________________________________
 Float_t AliMUONClusterInput::DiscrChargeCombiS1(Int_t i,Double_t *par, Int_t cath) 
 {
-// par[0]    x-position of cluster
-// par[1]    y-position of cluster
+/// \todo add comment
+/// - par[0]    x-position of cluster
+/// - param par[1]    y-position of cluster
 
-   fSegmentation[cath]->SetPad(fix[i][cath], fiy[i][cath]);
-//  First Cluster
-   fSegmentation[cath]->SetHit(par[0],par[1]);
-   Float_t q1=fResponse->IntXY(fSegmentation[cath]);
-    
+   Float_t q1;
+   fSegmentation2[cath]-> SetPad(fDetElemId, fix[i][cath], fiy[i][cath]);
+   //  First Cluster
+   fSegmentation2[cath]-> SetHit(fDetElemId, par[0],par[1],fZ);
+   q1 = fgMathieson->IntXY(fDetElemId, fSegmentation2[cath]);
+       
    Float_t value = fQtot[cath]*q1;
    return value;
 }
 
 
+//______________________________________________________________________________
 Float_t AliMUONClusterInput::DiscrChargeS2(Int_t i,Double_t *par) 
 {
-// par[0]    x-position of first  cluster
-// par[1]    y-position of first  cluster
-// par[2]    x-position of second cluster
-// par[3]    y-position of second cluster
-// par[4]    charge fraction of first  cluster
-// 1-par[4]  charge fraction of second cluster
-
-   fSegmentation[0]->SetPad(fix[i][0], fiy[i][0]);
-//  First Cluster
-   fSegmentation[0]->SetHit(par[0],par[1]);
-   Float_t q1=fResponse->IntXY(fSegmentation[0]);
-    
-//  Second Cluster
-   fSegmentation[0]->SetHit(par[2],par[3]);
-   Float_t q2=fResponse->IntXY(fSegmentation[0]);
-    
-   Float_t value = fQtot[0]*(par[4]*q1+(1.-par[4])*q2);
-   return value;
+/// \todo add comment
+/// - par[0]    x-position of first  cluster
+/// - par[1]    y-position of first  cluster
+/// - par[2]    x-position of second cluster
+/// - par[3]    y-position of second cluster
+/// - par[4]    charge fraction of first  cluster
+/// - 1-par[4]  charge fraction of second cluster
+
+  Float_t q1, q2;
+  
+  fSegmentation2[0]->SetPad(fDetElemId, fix[i][0], fiy[i][0]);
+  //  First Cluster
+  fSegmentation2[0]->SetHit(fDetElemId, par[0],par[1],fZ);
+  q1 = fgMathieson->IntXY(fDetElemId, fSegmentation2[0]);
+
+  //  Second Cluster
+  fSegmentation2[0]->SetHit(fDetElemId,par[2],par[3],fZ);
+  q2 = fgMathieson->IntXY(fDetElemId, fSegmentation2[0]);
+  
+  Float_t value = fQtot[0]*(par[4]*q1+(1.-par[4])*q2);
+  return value;
 }
 
+//______________________________________________________________________________
 Float_t AliMUONClusterInput::DiscrChargeCombiS2(Int_t i,Double_t *par, Int_t cath) 
 {
-// par[0]    x-position of first  cluster
-// par[1]    y-position of first  cluster
-// par[2]    x-position of second cluster
-// par[3]    y-position of second cluster
-// par[4]    charge fraction of first  cluster
-// 1-par[4]  charge fraction of second cluster
-
-   fSegmentation[cath]->SetPad(fix[i][cath], fiy[i][cath]);
-//  First Cluster
-   fSegmentation[cath]->SetHit(par[0],par[1]);
-   Float_t q1=fResponse->IntXY(fSegmentation[cath]);
-    
-//  Second Cluster
-   fSegmentation[cath]->SetHit(par[2],par[3]);
-   Float_t q2=fResponse->IntXY(fSegmentation[cath]);
-   Float_t value;
-   if (cath==0) {
-       value = fQtot[0]*(par[4]*q1+(1.-par[4])*q2);
-   } else {
-       value = fQtot[1]*(par[5]*q1+(1.-par[5])*q2);
-   }
-   return value;
-}
-
-
+/// \todo add comment
+/// - par[0]    x-position of first  cluster
+/// - par[1]    y-position of first  cluster
+/// - par[2]    x-position of second cluster
+/// - par[3]    y-position of second cluster
+/// - par[4]    charge fraction of first  cluster - first cathode
+/// - 1-par[4]  charge fraction of second cluster 
+/// - par[5]    charge fraction of first  cluster - second cathode
 
+  Float_t q1, q2;
 
+  fSegmentation2[cath]->SetPad(fDetElemId,fix[i][cath], fiy[i][cath]);
+  //  First Cluster
+  fSegmentation2[cath]->SetHit(fDetElemId,par[0],par[1],fZ);
+  q1 = fgMathieson->IntXY(fDetElemId, fSegmentation2[cath]);
+  
+  //  Second Cluster
+  fSegmentation2[cath]->SetHit(fDetElemId,par[2],par[3],fZ);
+  q2 = fgMathieson->IntXY(fDetElemId, fSegmentation2[cath]);
+  
+  Float_t value;
+  if (cath==0) {
+    value = fQtot[0]*(par[4]*q1+(1.-par[4])*q2);
+  } else {
+    value = fQtot[1]*(par[5]*q1+(1.-par[5])*q2);
+  }
+  return value;
+}