Logo ROOT   6.12/07
Reference Guide
ProofFriends.h File Reference

Detailed Description

Selector to process tree friends.

#ifndef ProofFriends_h
#define ProofFriends_h
#include "TChain.h"
#include "TSelector.h"
class TH1F;
class TH2F;
class ProofFriends : public TSelector {
public :
TTree *fChain; //!pointer to the analyzed TTree or TChain
Bool_t fPlot; // Whether to plot the result
Bool_t fDoFriends; // Whether to use the friend tree
// Specific members
TH2F *fXY;
TH1F *fZ;
TH1F *fR;
TH2F *fRZ;
// Declaration of leaf types
Int_t Run;
Long64_t Event;
Float_t r; // The friend
// List of branches
TBranch *b_Run; //!
TBranch *b_Event; //!
TBranch *b_x; //!
TBranch *b_y; //!
TBranch *b_z; //!
TBranch *b_r; //! The friend branch
ProofFriends();
virtual ~ProofFriends() { }
virtual Int_t Version() const { return 2; }
virtual void Begin(TTree *tree);
virtual void SlaveBegin(TTree *tree);
virtual void Init(TTree *tree);
virtual Bool_t Notify();
virtual Bool_t Process(Long64_t entry);
virtual Int_t GetEntry(Long64_t entry, Int_t getall = 0) { return fChain ? fChain->GetTree()->GetEntry(entry, getall) : 0; }
virtual void SetOption(const char *option) { fOption = option; }
virtual void SetObject(TObject *obj) { fObject = obj; }
virtual void SetInputList(TList *input) { fInput = input; }
virtual TList *GetOutputList() const { return fOutput; }
virtual void SlaveTerminate();
virtual void Terminate();
ClassDef(ProofFriends,0);
};
#endif
#ifdef ProofFriends_cxx
{
// The Init() function is called when the selector needs to initialize
// a new tree or chain. Typically here the branch addresses and branch
// pointers of the tree will be set.
// It is normally not necessary to make changes to the generated
// code, but the routine can be extended by the user if needed.
// Init() will be called many times when running on PROOF
// (once per file to be processed).
// Set branch addresses and branch pointers
if (!tree) return;
fChain = tree;
fChain->SetMakeClass(1);
fChain->SetBranchAddress("Run", &Run, &b_Run);
fChain->SetBranchAddress("Event", &Event, &b_Event);
fChain->SetBranchAddress("x", &x, &b_x);
fChain->SetBranchAddress("y", &y, &b_y);
fChain->SetBranchAddress("z", &z, &b_z);
fChain->SetBranchAddress("r", &r, &b_r); // The friend
}
Bool_t ProofFriends::Notify()
{
// The Notify() function is called when a new file is opened. This
// can be either for a new TTree in a TChain or when when a new TTree
// is started when using PROOF. It is normally not necessary to make changes
// to the generated code, but the routine can be extended by the
// user if needed. The return value is currently not used.
return kTRUE;
}
#endif // #ifdef ProofFriends_cxx
Author
Gerardo Ganis (gerar.nosp@m.do.g.nosp@m.anis@.nosp@m.cern.nosp@m..ch)

Definition in file ProofFriends.h.