| 1 | /* ======================================================================== *\
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| 2 | !
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| 3 | ! *
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| 4 | ! * This file is part of MARS, the MAGIC Analysis and Reconstruction
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| 5 | ! * Software. It is distributed to you in the hope that it can be a useful
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| 6 | ! * and timesaving tool in analysing Data of imaging Cerenkov telescopes.
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| 7 | ! * It is distributed WITHOUT ANY WARRANTY.
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| 8 | ! *
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| 9 | ! * Permission to use, copy, modify and distribute this software and its
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| 10 | ! * documentation for any purpose is hereby granted without fee,
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| 11 | ! * provided that the above copyright notice appear in all copies and
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| 12 | ! * that both that copyright notice and this permission notice appear
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| 13 | ! * in supporting documentation. It is provided "as is" without express
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| 14 | ! * or implied warranty.
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| 15 | ! *
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| 16 | !
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| 17 | !
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| 18 | ! Author(s): Thomas Bretz 12/2000 (tbretz@uni-sw.gwdg.de)
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| 19 | !
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| 20 | ! Copyright: MAGIC Software Development, 2000-2001
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| 21 | !
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| 22 | !
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| 23 | \* ======================================================================== */
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| 24 |
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| 25 |
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| 26 | void readin()
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| 27 | {
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| 28 | //
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| 29 | // open the file
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| 30 | //
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| 31 | TFile input("test.root", "READ");
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| 32 |
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| 33 | //
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| 34 | // open the Run Header tree
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| 35 | //
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| 36 | TTree *runtree = (TTree*) input.Get("RunHeaders") ;
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| 37 |
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| 38 | if (!runtree)
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| 39 | return;
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| 40 |
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| 41 | cout << " Entries in Tree RunHeaders: " << runtree->GetEntries() << endl ;
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| 42 |
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| 43 | //
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| 44 | // create an instance of MRawRunHeader, enable the branch and
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| 45 | // read the header, print it
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| 46 | //
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| 47 | MRawRunHeader *runheader = new MRawRunHeader();
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| 48 | runtree->GetBranch("MRawRunHeader")->SetAddress(&runheader);
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| 49 | runtree->GetEvent(0);
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| 50 | runheader->Print();
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| 51 |
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| 52 | //
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| 53 | // open the Data Tree
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| 54 | //
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| 55 | TTree *evttree = (TTree*) input.Get("Data") ;
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| 56 |
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| 57 | //
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| 58 | // create the instances of the data to read in
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| 59 | //
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| 60 | MRawEvtHeader *evtheader = new MRawEvtHeader();
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| 61 | MTime *evttime = new MTime();
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| 62 | MRawEvtData *evtdata = new MRawEvtData();
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| 63 | MRawCrateArray *evtcrate = new MRawCrateArray();
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| 64 |
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| 65 | //
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| 66 | // enable the corresponding branches
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| 67 | //
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| 68 | evttree->GetBranch("MRawEvtHeader")->SetAddress(&evtheader);
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| 69 | evttree->GetBranch("MTime")->SetAddress(&evttime);
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| 70 | evttree->GetBranch("MRawEvtData")->SetAddress(&evtdata);
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| 71 | evttree->GetBranch("MRawCrateArray")->SetAddress(&evtcrate);
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| 72 |
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| 73 | //
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| 74 | // loop over all events and print the information
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| 75 | //
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| 76 | Int_t iEnt = evttree->GetEntries();
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| 77 | cout << " Entries in Tree Data: " << iEnt << endl;
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| 78 |
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| 79 | for (Int_t i = 0; i<iEnt; i++)
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| 80 | {
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| 81 | // readin event with the selected branches
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| 82 | evttree->GetEvent(i);
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| 83 |
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| 84 | evtheader->Print();
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| 85 | evttime->Print();
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| 86 | evtcrate->Print();
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| 87 | evtdata->Print();
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| 88 | }
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| 89 | }
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| 90 |
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| 91 |
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