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/*

Skripta za kalibracijo visine fotovrhov
Vhod: histogrami ADC vs sum

Navodilo:
1.klikni na GCUT toolbar
2. poklikaj najvisji fotovrh v vsakem od histogramov . klikajh v vrstnem redu hoistogramov.
3. zakljuci na zadnjem vrhu tako, da se enkrat kliknes na isto tocko
4. ponovi vse za vse 4 fotopomnozevalke

Izhod: Datoteka z visinami fotovrhov po kanalih

 .x fotovrh.cxx("fmfpet.root")

*/


int fotovrh(char *fname, float max=100){

char cmd[256];
TFile *f= new TFile(fname);

FILE *fp= fopen("fotovrh.dat","w");
if (!fp) return 0;
for (int ipmt=0;ipmt<4;ipmt++){
  sprintf(cmd,"c%d",ipmt);
  TCanvas *c= new TCanvas(cmd,cmd,1500,1000);
 
  c->ToggleToolBar();
  c->Divide(4,4);
 
  for (int ch=0;ch<16;ch++){
    c->cd(ch+1);
    sprintf(cmd,"adcvssumch%d",ipmt*16+ch);
    TH2 *h = (TH2 *) f->Get(cmd);
    if (!h) {
     cout << "Histogram not found " << cmd << endl;
     continue;
    } else {
      if (max>0) h->SetMaximum(max);
      h->Draw("colz");
    }
  }
 
  c->WaitPrimitive("CUTG");
  TCutG *mycutg  = (TCutG*)gROOT->GetListOfSpecials()->FindObject("CUTG");
  if (mycutg) {
   sprintf(cmd,"cutg%d",ipmt);
   mycutg->SetName(cmd);
   mycutg->Print();
   int n= mycutg->GetN();
   double x,y;
   for (int k=0;k<n-1;k++){
     mycutg->GetPoint(k, x, y);
     printf("%d %f\n",k+ipmt*16,x);
     fprintf(fp,"%d %f\n",k+ipmt*16,x);
   }
  }
 
}
fclose(fp);
return 0;
}