X-Git-Url: http://git.uio.no/git/?a=blobdiff_plain;f=ITS%2FAliCascadeFindVertices.C;h=6639df8739a8d2d84ccc8214045634b53bd113fd;hb=bf27d64a0f4d49bc005c0fc4ad812e1f92578c67;hp=1b8e88b914f34c3ed11e30888aee2167b2e76c29;hpb=566abf7587803a3484678fc81c53b3c68e32106d;p=u%2Fmrichter%2FAliRoot.git

diff --git a/ITS/AliCascadeFindVertices.C b/ITS/AliCascadeFindVertices.C
index 1b8e88b914f..6639df8739a 100644
--- a/ITS/AliCascadeFindVertices.C
+++ b/ITS/AliCascadeFindVertices.C
@@ -2,18 +2,20 @@
   #include <Riostream.h>
   #include "AliCascadeVertexer.h"
   #include "TFile.h"
+  #include "TKey.h"
   #include "TStopwatch.h"
 
   #include "AliRun.h"
+  #include "AliESD.h"
+  #include "AliTracker.h"
   #include "AliRunLoader.h"
-  #include "AliITSLoader.h"
 #endif
 
 Int_t AliCascadeFindVertices(Int_t nev=5) {
    cerr<<"Looking for cascade vertices...\n";
 
    if (gAlice) {
-      delete gAlice->GetRunLoader();
+      delete AliRunLoader::Instance();
       delete gAlice;
       gAlice=0;
    }
@@ -22,54 +24,66 @@ Int_t AliCascadeFindVertices(Int_t nev=5) {
       cerr<<"AliCascadeFindVertices.C : Can not open session RL=NULL"<< endl;
       return 1;
    }
-   AliITSLoader* itsl = (AliITSLoader*)rl->GetLoader("ITSLoader");
-   if (itsl == 0x0) {
-      cerr<<"AliCascadeFindVertices.C : Can not get ITS loader"<<endl;
-      return 2;
+
+   if (rl->LoadgAlice()) {
+      cerr<<"AliV0FindVertices.C : LoadgAlice returned error"<<endl;
+      delete rl;
+      return 3;
    }
-   itsl->LoadTracks("read");
-   itsl->LoadV0s("read");
-   itsl->LoadCascades("recreate");
 
+   // Magnetic field
+   AliTracker::SetFieldMap(gAlice->Field(),1); // 1 means uniform magnetic field
    Double_t cuts[]={33.,    // max. allowed chi2
                     0.05,   // min. allowed V0 impact parameter 
                     0.008,  // window around the Lambda mass 
                     0.035,  // min. allowed bachelor's impact parameter 
                     0.10,   // max. allowed DCA between a V0 and a track
-                    0.9985, // max. allowed cosine of the cascade pointing angle
+                    0.9985,// max. allowed cosine of the cascade pointing angle
                     0.9,    // min. radius of the fiducial volume
                     2.9     // max. radius of the fiducial volume
                    };
    TStopwatch timer;
    AliCascadeVertexer *vertexer=new AliCascadeVertexer(cuts);
+
    Int_t rc=0;
    if (nev>rl->GetNumberOfEvents()) nev=rl->GetNumberOfEvents();
-   for (Int_t i=0; i<nev; i++) {
-     rl->GetEvent(i);
 
-     TTree *tTree=itsl->TreeT();
-     if (!tTree) {
-       cerr<<"AliCascadeFindVertices.C : Can't get the ITS track tree !"<<endl;
-       return 3;
-     }
-     TTree *vTree=itsl->TreeV0();
-     if (!vTree) {
-       cerr<<"AliCascadeFindVertices.C : Can't get the V0 tree !"<<endl;
-       return 4;
-     }
-     TTree *xTree=itsl->TreeX();
-     if (!xTree) {
-        itsl->MakeTree("X");
-        xTree=itsl->TreeX();
-     }
+   TFile *casf=TFile::Open("AliESDcas.root","RECREATE");
+   if ((!casf)||(!casf->IsOpen())) {
+      cerr<<"Can't AliESDcas.root !\n"; return 1;
+   }
+   TFile *v0f=TFile::Open("AliESDv0.root");
+   if ((!v0f)||(!v0f->IsOpen())) {
+      cerr<<"Can't AliESDv0.root !\n"; return 1;
+   }
+
+   TKey *key=0;
+   TIter next(v0f->GetListOfKeys());
+   for (Int_t i=0; i<nev; i++) {
+     v0f->cd();
+     if ((key=(TKey*)next())==0) break;
+     cerr<<"Processing event number: "<<i<<endl;
+     AliESD *event=(AliESD*)key->ReadObj();
 
-     rc=vertexer->V0sTracks2CascadeVertices(vTree,tTree,xTree);
+     rc=vertexer->V0sTracks2CascadeVertices(event);
 
-     itsl->WriteCascades("OVERWRITE");
+     if (rc==0) {
+        Char_t ename[100]; 
+        sprintf(ename,"%d",i);
+        casf->cd();
+        if (!event->Write(ename)) rc++;
+     } 
+     if (rc) {
+        cerr<<"Something bad happened...\n";
+     }
+     delete event;
    }
    delete vertexer;
    timer.Stop(); timer.Print();
     
+   v0f->Close();
+   casf->Close();
+
    delete rl;
 
    return rc;