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/Go4ExampleUserSource/TYYYAnalysis.cxx

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//---------------------------------------------------------------
//        Go4 Release Package v2.10-5 (build 21005) 
//                      03-Nov-2005
//---------------------------------------------------------------
//       The GSI Online Offline Object Oriented (Go4) Project
//       Experiment Data Processing at DVEE department, GSI
//---------------------------------------------------------------
//
//Copyright (C) 2000- Gesellschaft f. Schwerionenforschung, GSI
//                    Planckstr. 1, 64291 Darmstadt, Germany
//Contact:            http://go4.gsi.de
//----------------------------------------------------------------
//This software can be used under the license agreements as stated
//in Go4License.txt file which is part of the distribution.
//----------------------------------------------------------------
#include "TYYYAnalysis.h"

#include <iostream.h>

#include "TCanvas.h"

#include "TYYYRawEvent.h"


//***********************************************************
TYYYAnalysis::TYYYAnalysis()
: fUserFile(0),fRawEvent(0),fUnpackEvent(0)
{
  cout << "Wrong constructor TYYYAnalysis()!" << endl;
}
//***********************************************************
// this constructor is used
TYYYAnalysis::TYYYAnalysis(Text_t * lmd, Text_t * out1, Text_t * out2)
  : fUserFile(0),
    fRawEvent(0),
    fUnpackEvent(0),
    fSize(0),
    fEvents(0),
    fLastEvent(0)
{
// lmd: input file name (*.lmd)
// out1: output file name of first analysis step  (*.root)
// out2: output file name of second analysis step (*.root)
  cout << "**** TYYYAnalysis: Create" << endl;

// the step definitions can be changed in the GUI
// first step definitions:
// the name of the step can be used later to get event objects
  TYYYUnpackFact*         factory1 = new TYYYUnpackFact("Unpack-factory");
  TGo4UserSourceParameter*   source1  = new TGo4UserSourceParameter(lmd);
  TGo4FileStoreParameter* store1   = new TGo4FileStoreParameter(out1);
  TGo4AnalysisStep*       step1    = new TGo4AnalysisStep("Unpack",factory1,source1,store1,0);
  store1->SetOverwriteMode(kTRUE);
  step1->SetSourceEnabled(kTRUE);
  step1->SetStoreEnabled(kFALSE);  // dissable output
  step1->SetProcessEnabled(kTRUE);
  step1->SetErrorStopEnabled(kTRUE);
  AddAnalysisStep(step1);



  // At this point, autosave file has not yet been read!
  // Therefore parameter values set here will be overwritten
  // if an autosave file is there.
      fPar = new TYYYParameter("YYYPar1");
      fPar->frP1 = 100;
      fPar->frP2 = 200;
      AddParameter(fPar);
  TCanvas* mycan=new TCanvas("TestCanvas","Does this work?");
  mycan->Divide(2,2);
  AddCanvas(mycan);


}

//***********************************************************
TYYYAnalysis::~TYYYAnalysis()
{
  cout << "**** TYYYAnalysis: Delete" << endl;
}
//***********************************************************

//-----------------------------------------------------------
Int_t TYYYAnalysis::UserPreLoop()
{
  cout << "**** TYYYAnalysis: PreLoop" << endl;
   // we update the pointers to the current event structures here:
   fRawEvent = dynamic_cast<TYYYRawEvent*>    (GetInputEvent("Unpack"));   // of step "Unpack"
   fUnpackEvent = dynamic_cast<TYYYUnpackEvent*> (GetOutputEvent("Unpack"));
   fEvents=0;
   fLastEvent=0;

   // create histogram for UserEventFunc
   // At this point, the histogram has been restored from autosave file if any.
  fSize=(TH1D*)GetHistogram("Eventsize");
  if(fSize==0)
    { // no autosave read, create new and register
      fSize = new TH1D ("Eventsize", "Read columns",160,1,160);
      AddHistogram(fSize);
    }
  ClearObjects("Histograms"); // reset all histograms to 0 before run
                              // name specifies folder to clear
   return 0;
}
//-----------------------------------------------------------
Int_t TYYYAnalysis::UserPostLoop()
{
  cout << "**** TYYYAnalysis: PostLoop" << endl;
  cout << " Total events: " << fEvents << endl;
  TCanvas* can=GetCanvas("TestCanvas");
  TH1* hx=GetHistogram("Xfinal");
  TH1* hy=GetHistogram("Yfinal");
  TH1* hvx=GetHistogram("Vxfinal");
  TH1* hvy=GetHistogram("Vyfinal");
  if(can)
    {
      can->cd(1);
      if(hx) hx->Draw();
      can->cd(2);
      if(hy) hy->Draw();
      can->cd(3);
      if(hvx) hvx->Draw();
      can->cd(4);
      if(hvy) hvy->Draw();
    }


   fUnpackEvent = 0; // reset to avoid invalid pointer if analysis is changed in between
   fRawEvent = 0;
   fEvents=0;
   return 0;
}

//-----------------------------------------------------------
Int_t TYYYAnalysis::UserEventFunc()
{
   Int_t value=0;
   if(fRawEvent) value = fRawEvent->GetColumns();
   fSize->Fill(value); // fill histogram
   fEvents++;
   return 0;
}
//-----------------------------------------------------------

ClassImp(TYYYAnalysis)




//----------------------------END OF GO4 SOURCE FILE ---------------------

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