-////////////////////////////////////////////////
-// Reconstructed point class for set:ITS //
-////////////////////////////////////////////////
+/**************************************************************************
+ * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
+ * *
+ * Author: The ALICE Off-line Project. *
+ * Contributors are mentioned in the code where appropriate. *
+ * *
+ * Permission to use, copy, modify and distribute this software and its *
+ * documentation strictly for non-commercial purposes is hereby granted *
+ * without fee, provided that the above copyright notice appears in all *
+ * copies and that both the copyright notice and this permission notice *
+ * appear in the supporting documentation. The authors make no claims *
+ * about the suitability of this software for any purpose. It is *
+ * provided "as is" without express or implied warranty. *
+ **************************************************************************/
+/* $Id$ */
+///////////////////////////////////////////////////////////////////////////////
+// Reconstructed space point class for set:ITS
+// Reconstructed points are expressed simultaneously in two different
+// reference frames, both differing from the global system.
+// The first is referred to the sensor (see AliITSsegmentation for the
+// definition) and each point is represented by two coordinates: fXloc and
+// fZloc. This system in the code is referred to as "local"
+// The second is used for tracking (V2, SA and MI versions) and the X axis
+// represents the radial coordinate (this system is, in the bending plane,
+// a rotated system w.r.t. the global reference system).
+// Each reaconstructed point is represented by two coordinates: fY and fZ,
+// inherited from AliCluster. This system in the code is referred to as
+// "trackingV2".
+///////////////////////////////////////////////////////////////////////////////
+
+#include <TGeoMatrix.h>
#include "AliITSRecPoint.h"
+#include "AliAlignObj.h"
ClassImp(AliITSRecPoint)
+
+//_____________________________________________________________
+AliITSRecPoint::AliITSRecPoint():
+AliCluster(),
+fXloc(0),
+fZloc(0),
+fdEdX(0),
+fIndex(0),
+fQ(0),
+fLayer(0),
+fNz(0),
+fNy(0),
+fChargeRatio(0),
+fType(0),
+fDeltaProb(0),
+fDriftTime(0.),
+fDriftSide(0)
+{
+ // default constructor
+}
+
+//________________________________________________________________________
+AliITSRecPoint::AliITSRecPoint(Int_t *lab,Float_t *hit, Int_t *info, Bool_t local):
+AliCluster(AliGeomManager::LayerToVolUID((info[2]+AliGeomManager::kSPD1),lab[3]&0x3FF),hit,0,0,lab),
+fXloc(0),
+fZloc(0),
+fdEdX(0),
+fIndex(lab[3]),
+fQ(hit[4]),
+fLayer(info[2]),
+fNz(info[1]),
+fNy(info[0]),
+fChargeRatio(0),
+fType(0),
+fDeltaProb(0),
+fDriftTime(0.),
+fDriftSide(0)
+{
+ //standard constructor used in AliITSClusterFinderV2
+
+ if (!local) { // Cluster V2
+ Double_t txyz[3] = {GetX(), GetY(), GetZ()};
+ Double_t lxyz[3] = {0, 0, 0};
+ GetTracking2LocalMatrix()->LocalToMaster(txyz,lxyz);
+ fXloc = lxyz[0]; fZloc = lxyz[2];
+ if(fLayer==4) hit[5]=-hit[5];
+ if( (fLayer==4) || (fLayer==5) ) SetSigmaYZ(hit[5]);
+ }
+ else {
+ switch (fLayer) {
+ case 0:
+ case 1:
+ fdEdX = 0;
+ break;
+ case 2:
+ case 3:
+ fdEdX=fQ*1e-6;
+ break;
+ case 4:
+ fdEdX=fQ*2.16;
+ SetSigmaYZ(hit[5]);
+ case 5:
+ fdEdX=fQ*2.16;
+ hit[5]=-hit[5];
+ SetSigmaYZ(hit[5]);
+ break;
+ default:
+ AliError(Form("Wrong ITS layer %d (0 -> 5)",fLayer));
+ break;
+ }
+ fXloc = hit[0];
+ fZloc = hit[1];
+ Double_t lxyz[3] = {fXloc, 0, fZloc};
+ Double_t txyz[3] = {0, 0, 0};
+ GetTracking2LocalMatrix()->MasterToLocal(lxyz,txyz);
+
+ SetX(0.); SetY(txyz[1]); SetZ(txyz[2]);
+
+ }
+
+}
+
+//_______________________________________________________________________
+AliITSRecPoint::AliITSRecPoint(const AliITSRecPoint& pt):
+ AliCluster(pt),
+ fXloc(pt.fXloc),
+ fZloc(pt.fZloc),
+ fdEdX(pt.fdEdX),
+ fIndex(pt.fIndex),
+ fQ(pt.fQ),
+ fLayer(pt.fLayer),
+ fNz(pt.fNz),
+ fNy(pt.fNy),
+ fChargeRatio(pt.fChargeRatio),
+ fType(pt.fType),
+ fDeltaProb(pt.fDeltaProb),
+ fDriftTime(pt.fDriftTime),
+ fDriftSide(pt.fDriftSide)
+{
+ //Copy constructor
+
+}
+
+//______________________________________________________________________
+AliITSRecPoint& AliITSRecPoint::operator=(const AliITSRecPoint& source){
+ // Assignment operator
+
+ this->~AliITSRecPoint();
+ new(this) AliITSRecPoint(source);
+ return *this;
+
+}
+
+//----------------------------------------------------------------------
+void AliITSRecPoint::Print(ostream *os){
+ ////////////////////////////////////////////////////////////////////////
+ // Standard output format for this class.
+ ////////////////////////////////////////////////////////////////////////
+#if defined __GNUC__
+#if __GNUC__ > 2
+ ios::fmtflags fmt;
+#else
+ Int_t fmt;
+#endif
+#else
+#if defined __ICC || defined __ECC || defined __xlC__
+ ios::fmtflags fmt;
+#else
+ Int_t fmt;
+#endif
+#endif
+
+ fmt = os->setf(ios::fixed); // set fixed floating point output
+ *os << GetLabel(0) << " " << GetLabel(1) << " " << GetLabel(2) << " ";
+ fmt = os->setf(ios::scientific); // set scientific for dEdX.
+ *os << GetX() <<" " << GetY() << " " << GetZ() << " " ;
+ *os << GetSigmaY2() << " " << GetSigmaZ2() << " " << GetSigmaYZ() << " ";
+ fmt = os->setf(ios::fixed);
+ *os << GetVolumeId() << " "<< Misalign() /*fIsMisaligned*/ << " ";
+ fmt = os->setf(ios::scientific); // set scientific for dEdX.
+ *os << fXloc << " " << fZloc << " " << fdEdX << " ";
+ fmt = os->setf(ios::fixed); // every fixed
+ *os << fIndex <<" " << fQ << " "<<fLayer <<" "<<fNz<<" "<<fNy<<" ";
+ *os << fChargeRatio<<" " << fType << " " << fDeltaProb << " " << fDriftTime<< " " << fDriftSide;
+ os->flags(fmt); // reset back to old formating.
+ return;
+}
+
+//----------------------------------------------------------------------
+Int_t AliITSRecPoint::GetNpixels() const {
+//
+// returns the number of pixels used for the SPD clusters
+//
+
+ if(fLayer > 1) return -1;
+ else return fType;
+
+}
+
+//----------------------------------------------------------------------
+Int_t AliITSRecPoint::GetSPDclusterType() const {
+//
+// returns an Int_t with encoded information on cluster size
+// type <= 16: cluster type identifier according to conventional numbering
+// type > 16: Npixels+1000*Ny+1000000*Nz
+//
+
+ Int_t type = -1;
+ if(fLayer > 1) return type;
+ else {
+
+ switch (fType) {
+ case 1 : type = 1 ;break;
+ case 2 : if(fNy == 2) type = 2;
+ else type = 3;
+ break;
+ case 3 : if(fNy == 3) type = 4;
+ else if(fNz == 3) type = 6;
+ else type = 5;
+ break;
+ case 4 : if(fNz == 1) type = 7;
+ else if(fNz == 2 && fNy == 2) type = 8;
+ else if(fNy == 2 && fNz == 3) type = 11;
+ else if(fNy == 3 && fNz == 2) type = 9;
+ else type = 15;
+ break;
+ case 5 : if(fNy == 3 && fNz == 2) type = 10;
+ if(fNy == 2 && fNz == 3 ) type = 12;
+ if(fNy == 5) type = 16;
+ else type = fType+1000*fNy+1000000*fNz;
+ break;
+ case 6 : if(fNy ==3 && fNz == 2) type = 13;
+ if(fNy ==2 && fNz == 3) type = 14;
+ else type = fType+1000*fNy+1000000*fNz;
+ break;
+ default: type = fType+1000*fNy+1000000*fNz;
+ break;
+ }
+
+ return type;
+ }
+}
+
+//----------------------------------------------------------------------
+Int_t AliITSRecPoint::GetSDDclusterType() const {
+// returns an Int_t with encoded information on cluster size
+// Byte1 = fNz Byte0=fNy, other two bytes empty for extra information
+// max. allowed cluster size = 255
+ Int_t typ=(fNz&0xFF)<<8;
+ typ+=fNy&0xFF;
+ if(fDriftSide==1) typ+=1<<16;
+ return typ;
+}
+//----------------------------------------------------------------------
+void AliITSRecPoint::DecodeSDDclusterType(Int_t cluType, Int_t &cluSizAn, Int_t& cluSizTb, Int_t &drSide){
+// Extract cluster sizes and drift side from cluster type
+ cluSizTb=cluType&0xFF;
+ cluSizAn=(cluType>>8)&0xFF;
+ drSide=(cluType>>16);
+ return;
+}
+//----------------------------------------------------------------------
+Int_t AliITSRecPoint::GetSSDclusterType() const {
+// returns an Int_t with encoded information on cluster size
+// Byte1 = fNz Byte0=fNy, other two bytes empty for extra information
+// max. allowed cluster size = 255
+ Int_t typ=(fNz&0xFF)<<8;
+ typ+=fNy&0xFF;
+ return typ;
+}
+
+//----------------------------------------------------------------------
+void AliITSRecPoint::Read(istream *is){
+////////////////////////////////////////////////////////////////////////
+// Standard input format for this class.
+////////////////////////////////////////////////////////////////////////
+ Bool_t mis;
+ Int_t lab[4];
+ Float_t hit[6];
+ lab[3] = 0; // ??
+ *is >> lab[0] >> lab[1] >> lab[2];
+ SetLabel(lab[0],0); SetLabel(lab[1],1); SetLabel(lab[2],2);
+ *is >> hit[0] >> hit[1] >> hit[2] >> hit[3] >> hit[4] >> hit[5];
+ SetX(hit[0]);SetY(hit[1]);SetZ(hit[2]);SetSigmaY2(hit[3]);
+ SetSigmaZ2(hit[4]);//fSigmaYZ=hit[5];
+ *is >> lab[0] >> mis;
+ SetVolumeId(lab[0]);// fIsMisalinged = mis;
+ *is >> fXloc >> fZloc >> fdEdX;
+ *is >> fIndex >> fQ >> fLayer >> fNz >> fNy >> fChargeRatio >> fType;
+ *is >> fDeltaProb >> fDriftTime >> fDriftSide;
+
+ return;
+}
+//----------------------------------------------------------------------
+ostream &operator<<(ostream &os,AliITSRecPoint &p){
+////////////////////////////////////////////////////////////////////////
+// Standard output streaming function.
+////////////////////////////////////////////////////////////////////////
+
+ p.Print(&os);
+ return os;
+}
+//----------------------------------------------------------------------
+istream &operator>>(istream &is,AliITSRecPoint &r){
+////////////////////////////////////////////////////////////////////////
+// Standard input streaming function.
+////////////////////////////////////////////////////////////////////////
+
+ r.Read(&is);
+ return is;
+}
+//----------------------------------------------------------------------
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff