Incrementing class version

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

diff --git a/STEER/AliTracker.cxx b/STEER/AliTracker.cxx
index 1a66a3c5112fe64a1b29ef6b60bb51e8d386eb52..8e9ec1322a3e76659fa39f944d46661af1af1937 100644 (file)
--- a/STEER/AliTracker.cxx
+++ b/STEER/AliTracker.cxx
@@ -13,21 +13,55 @@
  * provided "as is" without express or implied warranty.                  *
  **************************************************************************/
 
-/* $Header$ */
+/* $Id$ */
 
 //-------------------------------------------------------------------------
 //               Implementation of the AliTracker class
-//
-//          Origin: Iouri Belikov, CERN, Jouri.Belikov@cern.ch
+//  that is the base for AliTPCtracker, AliITStrackerV2 and AliTRDtracker    
+//        Origin: Iouri Belikov, CERN, Jouri.Belikov@cern.ch
 //-------------------------------------------------------------------------
+
 #include <TMath.h>
 
 #include "AliTracker.h"
 #include "AliCluster.h"
 #include "AliKalmanTrack.h"
+#include "AliRun.h"
+#include "AliMagF.h"
+
+extern AliRun* gAlice;
+
+const AliMagF *AliTracker::fgkFieldMap=0;
 
 ClassImp(AliTracker)
 
+AliTracker::AliTracker():
+  fEventN(0),
+  fStoreBarrel(1),
+  fX(0),
+  fY(0),
+  fZ(0),
+  fSigmaX(0.005),
+  fSigmaY(0.005),
+  fSigmaZ(0.010)
+{
+  //--------------------------------------------------------------------
+  // The default constructor.
+  //--------------------------------------------------------------------
+ AliMagF *field=gAlice->Field();
+ if (field==0) Fatal("AliTracker()","Can't access the field map !");
+ SetFieldMap(field);
+}
+
+void AliTracker::SetFieldMap(const AliMagF* map) {
+  //--------------------------------------------------------------------
+  //This passes the field map to the reconstruction.
+  //--------------------------------------------------------------------
+  if (map==0) ::Fatal("SetFieldMap","Can't access the field map !");
+  AliKalmanTrack::SetConvConst(1000/0.299792458/map->SolenoidField());
+  fgkFieldMap=map;
+}
+
 //__________________________________________________________________________
 void AliTracker::CookLabel(AliKalmanTrack *t, Float_t wrong) const {
   //--------------------------------------------------------------------
@@ -84,5 +118,3 @@ void AliTracker::UseClusters(const AliKalmanTrack *t, Int_t from) const {
      c->Use();   
   }
 }
-
-