C++ THStack::GetName方法代码示例

void plotasym(int top){
  if (setup("vm","","pol__")==kFALSE) return;

  THStack* hs = new THStack(TString::Format("asym_top%d",top), TString::Format("asym_top%d",top));

  int itop = top-1;
  TFile* fy = _fyexp[itop];
  TIter nextkey(fy->GetListOfKeys());
  TKey *key;
  while (key = (TKey*)nextkey()) {
    TString Q2Wdirname = key->GetName();
    if(Q2Wdirname.EqualTo("hYW_Dir") || Q2Wdirname.EqualTo("hYW"))continue;
    cout << "Q2Wdirname = " << Q2Wdirname << endl;
    TString hname = TString::Format("%s/hAsym/Varset1/hAsym_ACC_CORR_phi",Q2Wdirname.Data());
    cout << "hname = " << hname << endl;
    TH1D* h = (TH1D*)fy->Get(hname);
    if (h==NULL) cout << "histogram not found" << endl;
    //h->Draw();
    hs->Add(h,"e1");
  }
  TCanvas *c = new TCanvas(hs->GetName(),hs->GetTitle());
  hs->Draw("pads");

}

void browseStacks( bool makePictures=false, bool wait=true , bool addHistName = false, Double_t maxYScaleF = 1., 
                  bool logScale = false, bool setMinZero = true) {


  gStyle->SetOptTitle(0);

  bool keep2D=false;

  //fix the hNJet histos
  TList *list = gDirectory->GetList();
  TIterator *iter = list->MakeIterator();
  TObject *obj = 0;
  while(obj = iter->Next()) {
  
    if(TString(obj->GetName()).Contains("hnJet") && obj->InheritsFrom(TH1::Class())) {
      
      int nbins = ((TH1F*)obj)->GetNbinsX();
      float overflow = ((TH1F*)obj)->GetBinContent(nbins+1);
      float lastbinval = ((TH1F*)obj)->GetBinContent(nbins);
      ((TH1F*)obj)->SetBinContent(nbins, overflow+lastbinval);
      ((TH1F*)obj)->GetXaxis()->SetBinLabel(nbins, "#geq4");
    }
  }
  
    
    
    
  // Find out what the names of the existing histograms are
  // The histogram names are XX_YY_ZZ, where XX is the sample,
  // eg, "tt", YY is the actual name, ZZ is the final state, eg, "ee"
  TObjArray* myNames = getMyHistosNames("ttdil","ee",keep2D);
    

  // Now loop over histograms, and make stacks
  TCanvas *c = new TCanvas();
  c->Divide(2,2);
  char* suffix[4];
  suffix[0] = "ee";
  suffix[1] = "mm";
  suffix[2] = "em";
  suffix[3] = "all";
  if (makePictures) c->Print("out/stacks.ps[");
  for (int i=0; i<myNames->GetEntries(); i++) {
     
    for (int sample=0; sample<4; sample++) {
       
       
      hist::stack(Form("st_%s_%s",myNames->At(i)->GetName(),suffix[sample]),
		  Form("%s_%s$",myNames->At(i)->GetName(), suffix[sample]));
      THStack* thisStack = (THStack*) gROOT->FindObjectAny(
							   Form("st_%s_%s", myNames->At(i)->GetName(), suffix[sample]));
       
      thisStack->SetMaximum(thisStack->GetMaximum()*maxYScaleF);
      if(TString(myNames->At(i)->GetName()).Contains("hnJet")) {
	TList* histolist = thisStack->GetHists();
	int hatchcount = 0;
	// 	for(int j = 0; j<histolist->GetSize();j++) {
	// 	  if(TString(histolist->At(j)->GetName()).Contains("tt") ||
	// 	     TString(histolist->At(j)->GetName()).Contains("tautau") ||
	// 	     TString(histolist->At(j)->GetName()).Contains("ww") ) continue;
	// 	  hatch(histolist->At(j)->GetName(), FavoriteHatches[hatchcount]);
	// 	  hatchcount++;
	// 	}
      }
	 
	 
      TLegend* thisLeg = hist::legend(thisStack, "lpf", 0, 0, 0.75, 0.65, 0.99, 0.99);
      c->cd(sample+1);
      if (logScale) gPad->SetLogy(); else gPad->SetLogy(0);
      double stackMax = ((TH1*)thisStack->GetHists()->At(0))->GetMaximum();
      double stackMin = ((TH1*)thisStack->GetHists()->At(0))->GetMinimum();
      thisStack->SetMinimum(stackMin);
      if (setMinZero) thisStack->SetMinimum(0);
      if (logScale && stackMin <=0) thisStack->SetMinimum(1e-2*stackMax);
      if (logScale && stackMax == 0) thisStack->SetMinimum(1e-12); 
      thisStack->Draw("hist");
      string xtitle( ((TH1*)gROOT->FindObjectAny(Form("ttdil_%s_%s", myNames->At(i)->GetName(), suffix[sample])))->GetXaxis()->GetTitle());
      string ytitle( ((TH1*)gROOT->FindObjectAny(Form("ttdil_%s_%s", myNames->At(i)->GetName(), suffix[sample])))->GetYaxis()->GetTitle());
      thisStack->GetXaxis()->SetTitle(xtitle.c_str());
      thisStack->GetYaxis()->SetTitle(ytitle.c_str());
      TString hname = thisStack->GetName();
      if(hname.Contains("hnJet")) {
	thisStack->GetXaxis()->SetLabelSize(0.075);
	thisStack->GetYaxis()->SetLabelSize(0.05);
	thisStack->GetXaxis()->SetTitle("N_{jets}");
      }
      thisLeg->Draw();
	
      TPaveText *pt1 = new TPaveText(0.1, 0.95, 0.4, 0.999, "brNDC");
      pt1->SetName("pt1name");
      pt1->SetBorderSize(0);
      pt1->SetFillStyle(0);
	
      TText *blah;
      if (addHistName) blah = pt1->AddText(hname);
      else blah = pt1->AddText("CMS Preliminary");
      blah->SetTextSize(0.05);
      pt1->Draw();
      c->Modified();
	
//.........这里部分代码省略.........

void view()
{
  TFile* f = TFile::Open("result.root");

  int signalColorTable[20], backgroundColorTable[20];

  for ( int i=0; i<20; ++i )
  {
    signalColorTable[i] = kAzure+10-i;
    backgroundColorTable[i] = kOrange+10-i;
  }

  TList* signalPlots = makePlots((TDirectory*)f->Get("MC_Signal_EMEM"), signalColorTable);
  TList* backgroundPlots = makePlots((TDirectory*)f->Get("MC_Background_EMEM"), backgroundColorTable, true);

  if ( signalPlots == 0 || backgroundPlots == 0 ) return;

  const int nPlots = signalPlots->GetSize();
  for ( int i=0; i<nPlots; ++i )
  {
    THStack* hSignal = (THStack*)signalPlots->At(i);
    THStack* hBackground = (THStack*)backgroundPlots->At(i);

    TString histName = hSignal->GetName();
    bool doLog = histName.Contains("Pt");// || histName.Contains("RelIso");

    TCanvas* c = new TCanvas(TString("c")+hSignal->GetName(), hSignal->GetTitle(), 1200, 600);
    TPad* pad;

    c->Divide(2,1);

    TString xTitle, yTitle;

    pad = (TPad*)c->cd(1);
    if ( doLog ) pad->SetLogy();
    pad->SetBorderSize(0);
    pad->SetBorderMode(0);
    hBackground->Draw();

    xTitle = ((TH1*)hBackground->GetHists()->At(0))->GetXaxis()->GetTitle();
    yTitle = ((TH1*)hBackground->GetHists()->At(0))->GetYaxis()->GetTitle();
    hBackground->GetXaxis()->SetTitle(xTitle);
    hBackground->GetYaxis()->SetTitle(yTitle);

    pad->BuildLegend(0.6, 0.6, 0.98, 0.98);

    pad = (TPad*)c->cd(2);
    if ( doLog ) pad->SetLogy();
    pad->SetBorderSize(0);
    pad->SetBorderMode(0);
    hSignal->Draw("nostack");

    xTitle = ((TH1*)hSignal->GetHists()->At(0))->GetXaxis()->GetTitle();
    yTitle = ((TH1*)hSignal->GetHists()->At(0))->GetYaxis()->GetTitle();
    hSignal->GetXaxis()->SetTitle(xTitle);
    hSignal->GetYaxis()->SetTitle(yTitle);

    pad->BuildLegend(0.6, 0.7, 0.98, 0.98);

    c->Print(TString(c->GetName())+".png");
  }
}