void ThetaPiSystem0(Int_t nev = 1e10,  
		    TString comment="" , 
		    TString filename="/misc/scratch.lxg0412/zumbruch/pid/prom/particle/data/v6_14/va_pm_00_nc_xx01338000410.root")
{
  gStyle->SetOptTitle(0);
  gStyle->SetPadRightMargin(0.1);

  TString canvName = "ThetaPiSystem0";
  if (!comment.IsNull()) { canvName+= "_" + comment;}

  TCanvas *canv = new TCanvas(canvName.Data(),canvName.Data());
  TFile *va_pm_00_nc_xx01338000410 = new TFile(filename.Data());

  TH1D* pip=PTools::getTH1D("thetaPipSystem0","#Theta distribution of #pi^{+} in system 0 (TOFINO)", 90, 0,90, "#Theta [#circ]","counts / 1 #circ");
  TH1D* pim=PTools::getTH1D("thetaPimSystem0","#Theta distribution of #pi^{-} in system 0 (TOFINO)", 90, 0,90, "#Theta [#circ]","counts / 1 #circ");

  T->Draw("HMdcParticle.fData.theta*180/acos(-1)>>thetaPipSystem0","HMdcParticle.fData.pid==8 && HMdcParticle.fData.system==0","e1",nev);
  
  T->Draw("HMdcParticle.fData.theta*180/acos(-1)>>thetaPimSystem0","HMdcParticle.fData.pid==9 && HMdcParticle.fData.system==0","e1",nev);
  pip->SetLineColor(8);
  pim->SetLineColor(2);
  pim->SetLineWidth(2);
  pip->SetLineWidth(2);
  gStyle->SetErrorX(0);

  
  pim->Draw("e1");
  pip->Draw("e1 sames");

  TLegend *leg = new TLegend(.7,.7,.8,.8,"");
  PTools::setLegendEntry(leg, pip, "#pi^{+}", pip->GetLineColor(),"L");
  PTools::setLegendEntry(leg, pim, "#pi^{-}", pim->GetLineColor(),"L");
  leg->Draw();

  canv->SetGrid();
  canv->Update();

  PTools::setHistStatsTextColor(pip,pip->GetLineColor());
  PTools::setHistStatsTextColor(pim,pim->GetLineColor());

  PTools::setHistStatsPosNDC(pip,0.80, 0.98, 0.83, 0.89);
  PTools::setHistStatsPosNDC(pim,0.80, 0.98, 0.76, 0.82);

  
  canv->Update();

  pim->Draw("e1");
  pip->Draw("e1 sames");

  TLegend *leg = new TLegend(.7,.6,.8,.7,"");
  PTools::setLegendEntry(leg, pip, "#pi^{+}", pip->GetLineColor(),"L");
  PTools::setLegendEntry(leg, pim, "#pi^{-}", pim->GetLineColor(),"L");
  leg->Draw();

  TString title = "#Theta distribution of #pi^{+} and #pi^{-} in system 0 (TOFino)";
  if (!comment.IsNull()) { title+= " -- " + comment;}
  PTools::drawLatex(title, 0.5 , 0.93, 1, 0.04,21);

  PTools::drawLatex("PWZ", 0.99, 0.01, 1, 0.03,31);

   PTools::saveToPdf(canv);
   PTools::saveToPng(canv);
   canv->Print();
   canv->SaveAs(".gif");

}