From 7941f004e6b0a6c55423da0f3012a010b3388494 Mon Sep 17 00:00:00 2001
From: richterm <richterm@f7af4fe6-9843-0410-8265-dc069ae4e863>
Date: Wed, 12 May 2010 23:34:03 +0000
Subject: [PATCH] adding copy constructor to create AliHLTGlobalBarrelTrack
 from AliHLTExternalTrackParam

---
 HLT/BASE/util/AliHLTGlobalBarrelTrack.cxx | 13 ++++++++++++-
 HLT/BASE/util/AliHLTGlobalBarrelTrack.h   |  2 ++
 2 files changed, 14 insertions(+), 1 deletion(-)

diff --git a/HLT/BASE/util/AliHLTGlobalBarrelTrack.cxx b/HLT/BASE/util/AliHLTGlobalBarrelTrack.cxx
index 46553956b41..c1c2eb46af5 100644
--- a/HLT/BASE/util/AliHLTGlobalBarrelTrack.cxx
+++ b/HLT/BASE/util/AliHLTGlobalBarrelTrack.cxx
@@ -70,13 +70,24 @@ AliHLTGlobalBarrelTrack::AliHLTGlobalBarrelTrack(const AliHLTExternalTrackParam&
 
   // the 5 track parameters are named in the AliHLTExternalTrackParam
   // while AliExternalTrackParam just uses an array[5]
-  // the members have the some order, fY is the first one
+  // the members have the same order, fY is the first one
   Set(p.fX, p.fAlpha, &p.fY, p.fC);
   SetPoints(p.fPointIDs, p.fNPoints);
   SetNumberOfClusters(p.fNPoints);
   //SetIntegratedLength(GetPathLengthTo( GetLastPointX(), b);
 }
 
+AliHLTGlobalBarrelTrack::AliHLTGlobalBarrelTrack(const AliExternalTrackParam& p )
+  : AliKalmanTrack()
+  , fPoints()
+  , fLastX(0)
+  , fLastY(0)
+  , fTrackID(0)
+{
+  // see header file for class documentation
+  *(dynamic_cast<AliExternalTrackParam*>(this))=p;
+}
+
 template <class c>
 AliHLTGlobalBarrelTrack& AliHLTGlobalBarrelTrack::operator=(const c& p)
 {
diff --git a/HLT/BASE/util/AliHLTGlobalBarrelTrack.h b/HLT/BASE/util/AliHLTGlobalBarrelTrack.h
index 84566820a72..0be23facce7 100644
--- a/HLT/BASE/util/AliHLTGlobalBarrelTrack.h
+++ b/HLT/BASE/util/AliHLTGlobalBarrelTrack.h
@@ -33,6 +33,8 @@ class AliHLTGlobalBarrelTrack : public AliKalmanTrack
   AliHLTGlobalBarrelTrack(const AliHLTGlobalBarrelTrack& t);
   /** copy constructor */
   AliHLTGlobalBarrelTrack(const AliHLTExternalTrackParam& p);
+  /** copy constructor */
+  AliHLTGlobalBarrelTrack(const AliExternalTrackParam& p);
 
   /** assignment operator */
   template <class c>
-- 
2.43.0