Adding HLT tracks to ESD

[u/mrichter/AliRoot.git] / STEER / AliESDHLTtrack.cxx

diff --git a/STEER/AliESDHLTtrack.cxx b/STEER/AliESDHLTtrack.cxx
new file mode 100644 (file)
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+++ b/STEER/AliESDHLTtrack.cxx
@@ -0,0 +1,61 @@
+/**************************************************************************
+ * 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.                  *
+ **************************************************************************/
+
+//-----------------------------------------------------------------
+//           Implementation of the ESD HLT track class
+//   ESD = Event Summary Data
+//   HLT = High Level Trigger
+//   This is the class to deal with during the phisical analysis of data
+//-----------------------------------------------------------------
+
+#include "TMath.h"
+#include "AliESDHLTtrack.h"
+
+ClassImp(AliESDHLTtrack)
+
+AliESDHLTtrack::AliESDHLTtrack() : TObject()
+{
+  fNHits = 0;
+  fMCid = 0;
+  fWeight = 0;
+  fFromMainVertex = kFALSE;
+  fRowRange[0] = fRowRange[1] = 0;
+  fSector = 0;
+  fFirstPoint[0] = fFirstPoint[1] = fFirstPoint[2] = 0;
+  fLastPoint[0] = fLastPoint[1] = fLastPoint[2] = 0;
+  fQ = 0;
+  fTanl = 0;
+  fPsi = 0;
+  fPt = 0;
+  fPterr = 0;
+  fPsierr = 0;
+  fTanlerr = 0;
+  fBinX = 0;
+  fBinY = 0;
+  fSizeX = 0;
+  fSizeY = 0;
+  fPID =0;
+}
+
+Double_t AliESDHLTtrack::GetP() const
+{
+  // Returns total momentum.  
+  return TMath::Abs(GetPt())*sqrt(1. + GetTgl()*GetTgl());
+}
+
+Double_t AliESDHLTtrack::GetPseudoRapidity() const
+{
+  return 0.5 * TMath::Log((GetP() + GetPz()) / (GetP() - GetPz()));
+}