#define a_cxx // The class definition in a.h has been generated automatically // by the ROOT utility TTree::MakeSelector(). This class is derived // from the ROOT class TSelector. For more information on the TSelector // framework see $ROOTSYS/README/README.SELECTOR or the ROOT User Manual. // The following methods are defined in this file: // Begin(): called every time a loop on the tree starts, // a convenient place to create your histograms. // SlaveBegin(): called after Begin(), when on PROOF called only on the // slave servers. // Process(): called for each event, in this function you decide what // to read and fill your histograms. // SlaveTerminate: called at the end of the loop on the tree, when on PROOF // called only on the slave servers. // Terminate(): called at the end of the loop on the tree, // a convenient place to draw/fit your histograms. // // To use this file, try the following session on your Tree T: // // root> T->Process("a.C") // root> T->Process("a.C","some options") // root> T->Process("a.C+") // #include "a.h" #include #include void a::Begin(TTree * /*tree*/) { // The Begin() function is called at the start of the query. // When running with PROOF Begin() is only called on the client. // The tree argument is deprecated (on PROOF 0 is passed). TString option = GetOption(); } void a::SlaveBegin(TTree * /*tree*/) { // The SlaveBegin() function is called after the Begin() function. // When running with PROOF SlaveBegin() is called on each slave server. // The tree argument is deprecated (on PROOF 0 is passed). TString option = GetOption(); } Bool_t a::Process(Long64_t entry) { // The Process() function is called for each entry in the tree (or possibly // keyed object in the case of PROOF) to be processed. The entry argument // specifies which entry in the currently loaded tree is to be processed. // It can be passed to either a::GetEntry() or TBranch::GetEntry() // to read either all or the required parts of the data. When processing // keyed objects with PROOF, the object is already loaded and is available // via the fObject pointer. // // This function should contain the "body" of the analysis. It can contain // simple or elaborate selection criteria, run algorithms on the data // of the event and typically fill histograms. // // The processing can be stopped by calling Abort(). // // Use fStatus to set the return value of TTree::Process(). // // The return value is currently not used. printf("%d\n",t); return kTRUE; } void a::SlaveTerminate() { // The SlaveTerminate() function is called after all entries or objects // have been processed. When running with PROOF SlaveTerminate() is called // on each slave server. } void a::Terminate() { // The Terminate() function is the last function to be called during // a query. It always runs on the client, it can be used to present // the results graphically or save the results to file. }