C++ TMarker类代码示例

void gtime2(Int_t nsteps = 200, Int_t np=5000) {
   if (np > 5000) np = 5000;
   Int_t color[5000];
   Double_t cosphi[5000], sinphi[5000], speed[5000];
   TRandom3 r;
   Double_t xmin = 0, xmax = 10, ymin = -10, ymax = 10;
   TGraphTime *g = new TGraphTime(nsteps,xmin,ymin,xmax,ymax);
   g->SetTitle("TGraphTime demo 2;X;Y");
   Int_t i,s;
   Double_t phi,fact = xmax/Double_t(nsteps);
   for (i=0;i<np;i++) { //calculate some object parameters
      speed[i]  = r.Uniform(0.5,1);
      phi       = r.Gaus(0,TMath::Pi()/6.);
      cosphi[i] = fact*speed[i]*TMath::Cos(phi);
      sinphi[i] = fact*speed[i]*TMath::Sin(phi);
      Double_t rc = r.Rndm();
      color[i] = kRed;
      if (rc > 0.3) color[i] = kBlue;
      if (rc > 0.7) color[i] = kYellow;
   }
   for (s=0;s<nsteps;s++) { //fill the TGraphTime step by step
      for (i=0;i<np;i++) {
         Double_t xx = s*cosphi[i];
         if (xx < xmin) continue;
         Double_t yy = s*sinphi[i];
         TMarker *m = new TMarker(xx,yy,25);
         m->SetMarkerColor(color[i]);
         m->SetMarkerSize(1.5 -s/(speed[i]*nsteps));
         g->Add(m,s);
      }
      g->Add(new TPaveLabel(.70,.92,.98,.99,Form("shower at %5.3f nsec",3.*s/nsteps),"brNDC"),s);
   }
   g->Draw();
}

void DrawLabel(TString txt, double x, double y, int mstyle, int col, double msize) {
  TMarker *m = new TMarker(x,y,mstyle);
  m->SetNDC();
  m->SetMarkerSize(msize); m->SetMarkerColor(col);
  TLine *l = new TLine();
  l->SetLineWidth(2); l->SetLineColor(col);
  m->Draw();
  tex->SetTextSize(0.04);
  tex->SetTextAlign(12); tex->SetTextColor(col);
  tex->DrawLatex(x+0.025,y,txt);
  tex->SetTextColor(kBlack);
}

void drawEventRPhi(double vxlb, double vylb, double vxl0, double vyl0, double pmu1, double phimu1, double pmu2, double phimu2, double ppr, double phipr, double ppi, double phipi, int colors = 0)
{
    Color_t colMu1(1), colMu2(1), colPr(1), colPi(1), colL0(1), colLb(1);
    switch(colors)
    {
	case 0:
	    colLb=1; colL0=2; colMu1=2; colMu2=2; colPr=3; colPi=4; break;
	case 1:
	    colLb=11; colL0=50; colMu1=50; colMu2=50; colPr=8; colPi=9; break;
    }
    // draw the vertices
    TMarker *m;
    const double xlb = vxlb;
    const double ylb = vylb;
    m = new TMarker(xlb,ylb,7);
    m->SetMarkerColor(colLb);
    m->Draw();
    const double xl0 = vxl0;
    const double yl0 = vyl0;
    m = new TMarker(xl0,yl0,7);
    m->SetMarkerColor(colL0);
    m->Draw();
    // draw the l0 flight line
    TLine *l;
    l = new TLine(vxlb,vylb,vxl0,vyl0);
    l->SetLineColor(colL0);
    l->SetLineStyle(2);
    l->Draw();
    // draw the muons
    TArrow *a;
    const double xmu1 = xlb + scalemu * pmu1 * TMath::Cos(phimu1);
    const double ymu1 = ylb + scalemu * pmu1 * TMath::Sin(phimu1);
    a = new TArrow(xlb,ylb,xmu1,ymu1,.01,">");
    a->SetLineColor(colMu1);
    a->Draw();
    const double xmu2 = xlb + scalemu * pmu2 * TMath::Cos(phimu2);
    const double ymu2 = ylb + scalemu * pmu2 * TMath::Sin(phimu2);
    a = new TArrow(xlb,ylb,xmu2,ymu2,.01,">");
    a->SetLineColor(colMu2);
    a->Draw();
    // draw the p and pi
    const double xpr = xl0 + scalepr * ppr * TMath::Cos(phipr);
    const double ypr = yl0 + scalepr * ppr * TMath::Sin(phipr);
    a = new TArrow(xl0,yl0,xpr,ypr,.01,">");
    a->SetLineColor(colPr);
    a->Draw();
    const double xpi = xl0 + scalepi * ppi * TMath::Cos(phipi);
    const double ypi = yl0 + scalepi * ppi * TMath::Sin(phipi);
    a = new TArrow(xl0,yl0,xpi,ypi,.01,">");
    a->SetLineColor(colPi);
    a->Draw();
}

// Draw on a given canvas the full set of working points
void   overlayWorkingPoints(TCanvas *c1, 
			    TTree *signalTree, TTree *backgroundTree, 
			    const TString *cutFileNames,
			    int markerColor, int markerStyle, 
			    TLegend *leg, const TString legendText){


  // Now loop over working points
  for(int iwp = 0; iwp<nWP; iwp++){
    
    // Load the working point from a ROOT file
    TFile *cutFile = new TFile(cutFileNames[iwp]);
    if( !cutFile )
      assert(0);
    VarCut *cutObject = (VarCut*)cutFile->Get("cuts");
    if( !cutObject )
      assert(0);
    
    // Compute the efficiencies
    float effSignal, effBackground;
    findEfficiencies(signalTree, backgroundTree, effSignal, effBackground,
		     cutObject);
    printf("Computed eff for cut from %s, effS= %.3f effB= %.3f\n",
	   cutFileNames[iwp].Data(), effSignal, effBackground);
    
    // Make a marker and draw it.
    TMarker *marker = new TMarker(effSignal, 1.0-effBackground, 20);
    marker->SetMarkerSize(2);
    marker->SetMarkerColor(markerColor);
    marker->SetMarkerStyle(markerStyle);
    marker->Draw("same");

    // Add marker to the legend only once. Do not draw the legend here,
    // it is drawn in the main function later
    if( iwp == 0 ){
      if( !leg )
	assert(0);
      leg->AddEntry(marker, legendText, "p");
    }

    c1->Update();
    
    cutFile->Close();
  }

  
}

void showHistogram1d(TH1* histogram, 
		     const std::string& xAxisTitle,
		     Float_t* genX, 
		     const std::string& outputFileName)
{
  TCanvas* canvas = new TCanvas("canvas", "canvas", 800, 600);
  canvas->SetFillColor(10);
  canvas->SetBorderSize(2);

  canvas->SetTopMargin(0.10);
  canvas->SetLeftMargin(0.16);
  canvas->SetRightMargin(0.14);
  canvas->SetBottomMargin(0.12);

  TAxis* xAxis = histogram->GetXaxis();
  xAxis->SetTitle(xAxisTitle.data());
  xAxis->SetTitleOffset(1.15);

  TAxis* yAxis = histogram->GetYaxis();
  yAxis->SetTitle("Sampling Points");
  yAxis->SetTitleOffset(1.60);

  histogram->SetLineColor(1);
  histogram->SetLineWidth(2);
  histogram->SetMarkerColor(1);
  histogram->SetMarkerStyle(20);
  histogram->Draw("e1p");

  TMarker* genMarker = 0;
  if ( genX ) {
    genMarker = new TMarker(*genX, 0.10, 34);
    genMarker->SetMarkerColor(1);
    genMarker->SetMarkerSize(2);
    genMarker->Draw();
  }

  canvas->Update();
  size_t idx = outputFileName.find_last_of('.');
  std::string outputFileName_plot = std::string(outputFileName, 0, idx);
  if ( idx != std::string::npos ) canvas->Print(std::string(outputFileName_plot).append(std::string(outputFileName, idx)).data());
  canvas->Print(std::string(outputFileName_plot).append(".png").data());
  canvas->Print(std::string(outputFileName_plot).append(".pdf").data());
  canvas->Print(std::string(outputFileName_plot).append(".root").data());

  delete genMarker;
  delete canvas;  
}

void drawTransition(){
  TBox *bTrans = new TBox(0., 0., 0.97, 0.97);
  if(iColor)bTrans->SetFillColor(kYellow-9);
  if (! iColor)bTrans->SetFillStyle(4017);
  bTrans->Draw();

  TEllipse *eTrans1 = new TEllipse(0., 0., 0.9, 0.7, 70., 90., 0.);
  eTrans1->SetNoEdges();
  eTrans1->SetFillColor(17);
  eTrans1->SetLineWidth(2);
  eTrans1->SetLineStyle(7);
  eTrans1->Draw();

  TEllipse *eTrans2 = new TEllipse(0., 0., 0.9, 0.7, 0., 70., 0.);
  eTrans2->SetNoEdges();
  eTrans2->SetFillColor(17);
  eTrans2->SetLineWidth(2);
  eTrans2->Draw();

  TMarker *mCrit = new TMarker(0.29, 0.6625, 20);
  mCrit->SetMarkerSize(1.4);
  mCrit->Draw();
}

void myMarkerText(Double_t x,Double_t y,Int_t color,Int_t mstyle, const char *text,Float_t msize)
{
  Double_t tsize=0.06;
  TMarker *marker = new TMarker(x-(0.4*tsize),y,8);
  marker->SetMarkerColor(color);  marker->SetNDC();
  marker->SetMarkerStyle(mstyle);
  marker->SetMarkerSize(msize);
  marker->Draw();

  TLatex l; l.SetTextAlign(12); //l.SetTextSize(tsize);
  l.SetNDC();
  l.DrawLatex(x,y,text);
}

void myMarkerText(Double_t x,Double_t y,Int_t color,Int_t mstyle,char *text) 
{
  //  printf("**myMarker: text= %s\ m ",text);

  Double_t tsize=0.06;
  TMarker *marker = new TMarker(x-(0.4*tsize),y,8);
  marker->SetMarkerColor(color);  marker->SetNDC();
  marker->SetMarkerStyle(mstyle);
  marker->SetMarkerSize(2.0);
  marker->Draw();

  TLatex l; l.SetTextAlign(12); //l.SetTextSize(tsize); 
  l.SetNDC();
  l.DrawLatex(x,y,text);
}

vector<TObject *> * mark_overflows(TH1F * histogram) {
  Double_t maximum_value = histogram->GetMaximum();
  Double_t minimum_value = histogram->GetMinimum();

  vector<TObject *> * overflow_markers = new vector<TObject *>();

  Float_t * bins = histogram->GetArray();
  Int_t number_of_bins = histogram->GetNbinsX();

  // note that the bins array has the following structure:
  // bins[0] is the underflow bin
  // bins[1] through bins[number_of_bins] are the actual bins
  // bins[number_of_bins + 1] is the overflow bin
  for(int j = 1; j <= number_of_bins; j++) {
    if (bins[j] > maximum_value || bins[j] < minimum_value) {
      Double_t x1 = histogram->GetXaxis()->GetBinLowEdge(j);
      Double_t x2 = histogram->GetXaxis()->GetBinUpEdge(j);

      TMarker * m = new TMarker();
      m->SetX((x2 + x1) / 2.0);
      m->SetMarkerColor(kRed);
      m->SetMarkerSize(MARKER_SIZE * 2);

      if(bins[j] > maximum_value) {
        m->SetY(maximum_value - MARKER_Y_SHIFT);
        m->SetMarkerStyle(22); // up arrow
      } else {
        m->SetY(minimum_value + MARKER_Y_SHIFT);
        m->SetMarkerStyle(23); // down arrow
      }

      overflow_markers->push_back(m);
    }
  }

  return overflow_markers;
}

//.........这里部分代码省略.........
    if(fVerbose>0)
	cout << "Succesfully opened file " << fullPath << endl;
    // Get TTree
    TTree* t = (TTree*) f->Get("events");
    if(fVerbose>0) cout << "Got TTree with " << t->GetEntries() << " entries" << endl;
    // Do a cut, if needed
    //t->Draw(">>lst","chi2lb>.1&&mlb>5.61&&mlb<5.63");
    //t->Draw(">>lst","chi2lb>.1&&isSig==1");
    t->Draw(">>lst","(rid1m&4)==4&&(rid2m&4)==4&&mjp>2.895&&mjp<3.295&&prob1m>0.1&&prob2m>0.1&&ptjp>2&&probjp>0.005&&ml0>1.101&&ml0<1.129&&probpr>0.02&&probpi>0.02&&rptpr>rptpi&&ptl0>3&&rptpr>1&&rptpi>0.5&&probl0>0.02&&alphal0<0.3&&d3l0>1&&d3l0/d3El0>10&&problb>0.001&&alphalb<0.3");
    TEventList *lst;
    lst = (TEventList*)gDirectory->Get("lst");
    t->SetEventList(lst);
    if(fVerbose>0) cout << "Got TTree with " << t->GetEntries() << " entries" << endl;

    // Do plots
    c->cd(1);
    //doPlot2d(t,"hrzL0vtx", "vrl0:TMath::Abs(vzl0)",30,0,300,30,0,120,"Tit","|z|","r","cm","cm");
    if (custBinning)
    {
	double newbinsX[]={0,2,4,6,8,10,12,14,16,18,20,22,24,26,28,30,32,34,36,38,40,42,44,46,48,50};
	const int newbinsX_size = sizeof(newbinsX)/sizeof(double);
	std::vector<double> binvecX(newbinsX,newbinsX+newbinsX_size);
	//double newbinsY[]={0,1,2,3,4,5,6,7,8,9,10};
	double newbinsY[]={0,0.5,1,2,4,8,16,32};
	const int newbinsY_size = sizeof(newbinsY)/sizeof(double);
	std::vector<double> binvecY(newbinsY,newbinsY+newbinsY_size);
	doPlot2d(t,"hrzL0vtxreco", "vrl0:TMath::Abs(vzl0)",binvecX, binvecY,"#Lambda vertices","|z|","r","cm","cm");
    }
    else
    {
	doPlot2d(t,"hrzL0vtxreco", "vrl0:TMath::Abs(vzl0)",30,0,50,30,0,30,"#Lambda vertices","|z|","r","cm","cm");
    }

    // add tracker
    TPad* pad;
    pad = (TPad*)c->cd(1);
    pad->Modified();
    pad->Update();
    repositionPalette("hrzL0vtxreco");
    pad->Update();
    pad->SetLogz();
    drawTracker(pad);

    if (nOverlay<=0) return;
    int maxN = nOverlay;
    if (maxN > t->GetEntries()) maxN = t->GetEntries();
    double vrl0,vzl0,ppr,ppi,etapr,etapi;
    t->SetBranchAddress("vrl0",&vrl0);
    t->SetBranchAddress("vzl0",&vzl0);
    t->SetBranchAddress("ppr",&ppr);
    t->SetBranchAddress("etapr",&etapr);
    t->SetBranchAddress("ppi",&ppi);
    t->SetBranchAddress("etapi",&etapi);
    double scalepr = 4;
    double scalepi = 8;

    { // reference indicator
	const double x1pr = 0; const double y1pr = -3;
	const double x2pr = scalepr; const double y2pr = y1pr;
	const double versatz = 14;
	const double x1pi = x1pr+versatz; const double y1pi = -3;
	const double x2pi = x2pr+versatz+scalepi; const double y2pi = y1pi;
	TArrow *a;
	a = new TArrow(x1pr,y1pr,x2pr,y2pr,.01,">");
	a->SetLineColor(24);
	a->Draw();
	TLatex tl;
	tl.SetTextSize(20);
	tl.SetTextFont(4);
	tl.DrawLatex(x1pr,y2pr-1.2,"p(p) / 1 GeV");
	a = new TArrow(x1pi,y1pi,x2pi,y2pi,.01,">");
	a->SetLineColor(20);
	a->Draw();
	tl.SetTextSize(20);
	tl.SetTextFont(4);
	tl.DrawLatex(x1pi,y2pi-1.2,"p(#pi) / 1 GeV");
    }
    for (int i = 0; i!=maxN; i++)
    {
	t->GetEntry(i);
	const double thetapr = 2*TMath::ATan(TMath::Exp(-TMath::Abs(etapr)));
	const double thetapi = 2*TMath::ATan(TMath::Exp(-TMath::Abs(etapi)));
	const double x1=TMath::Abs(vzl0);
	const double y1=vrl0;
	const double x2pr=x1+scalepr*ppr*TMath::Cos(thetapr);
	const double y2pr=y1+scalepr*ppr*TMath::Sin(thetapr);
	const double x2pi=x1+scalepi*ppi*TMath::Cos(thetapi);
	const double y2pi=y1+scalepi*ppi*TMath::Sin(thetapi);
	TArrow *a;
        a = new TArrow(x1,y1,x2pr,y2pr,.01,">");
	a->SetLineColor(24);
	a->Draw();
        a = new TArrow(x1,y1,x2pi,y2pi,.01,">");
	a->SetLineColor(20);
	a->Draw();
	TMarker *m = new TMarker(x1,y1,7);
	m->SetMarkerColor(28);
	m->Draw();
    }
}

//.........这里部分代码省略.........
#endif
//	gen0->Draw("same");

#ifdef NEW_ROBERTS
	roberts_curve->Draw("same");
#endif
	//  ourfit->Draw("same");
	//  bbba05->Draw("same");
	//lomon->Draw("same");
	// bandi->Draw("same");
#ifdef PQCD  
	legThry->AddEntry(genf,"F_{2}/F_{1} #propto ln^{2}(Q^{2}/#Lambda^{2})/Q^{2}","l");
#endif
#ifdef GALSTER
	legThry->AddEntry(galster,"Galster fit (1971)","l");
#endif
//	legThry->AddEntry(gen0,"G_{E}^{n} = 0","l");
#ifdef NEW_ROBERTS
	legThry->AddEntry(roberts_curve,"q(qq) Faddeev -  I. Cloet, ANL","l");
#endif
	//  legThry->AddEntry(bbba05,"BBBA05","l");
	//  legThry->AddEntry(lomon, "Lomon", "l");
	// legThry->AddEntry(ourfit, "Our Fit", "l");
	legThry->Draw();
	legDta->Draw();

	mgrDta->Draw("p");
	legDta->Draw();

	TEllipse *cir1 = new TEllipse(1.31, 0.0, 0.17, 0.0065);
	TEllipse *cir2 = new TEllipse(2.4, 0.0, 0.17, 0.0065);
	cir1->SetFillStyle(0);
	cir2->SetFillStyle(0);

#ifdef PLOTKIN1
	cir1->Draw("same");
	//  cir2->Draw("same");

	//  TPaveLabel *exacc = new TPaveLabel( 0.3779, 0.2691, 0.5963, 0.3114, "Expected Accuracy", "NDC");
	TPaveLabel *exacc = new TPaveLabel( 0.2716, 0.2733, 0.4899, 0.3136, "Expected Accuracy", "NDC");
	exacc->SetFillStyle(0);
	exacc->SetBorderSize(0);
	exacc->Draw("same");
#endif


	// draw a line at 1
	cn->Modified();

	cn->Update();
	cn->SaveAs(Form("%s.pdf",psfile));
	cn->SaveAs(Form("%s.eps",psfile));
	//  cn->SaveAs(Form("%s.root",psfile));
	//  gSystem->Exec(Form("./replace_symbols.pl %s.eps",psfile));

	//  cn->SaveAs("bogdan_gen.eps");
	return;  // LEAVING HERE

	// now an overlay, hopefully matching dimensions

	// remove everything but the graph
	cn->Update();
	TList *clist = cn->GetListOfPrimitives();
	TFrame* frame = cn->GetFrame();
	for (int i=0; i<clist->GetSize(); ) {
		if (clist->At(i) != frame) {
			clist->RemoveAt(i);
		} else i++;
	}
	// draw markers in the corners
	TMarker *mkr = new TMarker(frame->GetX1(),frame->GetY1(),2);
	mkr->Draw();
	mkr = new TMarker(frame->GetX2(),frame->GetY1(),2);
	mkr->Draw();
	mkr = new TMarker(frame->GetX1(),frame->GetY2(),2);
	mkr->Draw();
	mkr = new TMarker(frame->GetX2(),frame->GetY2(),2);
	mkr->Draw();
	frame->SetLineColor(10);
	cn->Update();

	datafile_t miller = { "figure_input/Miller/lattice.GEn.rtf","Miller",
		"[0]","[1]","[1]-[3]","[2]-[1]",0,0,1,3,"F" };

	gr = OneGraph(&miller);
	TGraphAsymmErrors* egr = dynamic_cast<TGraphAsymmErrors*>(gr);
	if (egr && egr->GetEYhigh() && egr->GetEYhigh()[egr->GetN()/2]>0) {
		gr = toerror_band(egr);
		gr->SetLineStyle(1);
		gr->SetFillColor(gr->GetLineColor());
		gr->SetFillStyle(3000+miller.style);
	}

	gr->Draw("F");

	cn->Update();
	cn->SaveAs("gen_Miller_Overlay.pdf");
	cn->SaveAs("gen_Miller_Overlay.root");

}

void Show_SR(TString oredList,  TCanvas *can, float xlow, float xhigh, float ylow, float yhigh, bool useShape, TLegend *leg)
{
    Int_t c_myRed      = TColor::GetColor("#aa000");
    
    can->cd();

    TLatex lat;
    //lat.SetTextAlign( 11 );
    lat.SetTextSize( 0.0265 );
    lat.SetTextColor( 12 );
    lat.SetTextFont( 42 );

    cout << "Draw signal region labels." << endl;
    gROOT->ProcessLine(".L summary_harvest_tree_description.h+");
    gSystem->Load("libSusyFitter.so");

    TString txtfile=oredList;
    txtfile.ReplaceAll(".root","");

    TTree* tree = harvesttree( txtfile!=0 ? txtfile : 0 );
    if (tree==0) { 
        cout << "Cannot open list file. Exit." << endl;
        return;
    }

    Float_t fID;
    Float_t m0; 
    Float_t m12; 

    TBranch *b_m0;
    TBranch *b_m12;
    TBranch *b_fID;

    tree->SetBranchAddress("m0", &m0, &b_m0);
    tree->SetBranchAddress("m12", &m12, &b_m12);
    tree->SetBranchAddress("fID",  &fID,  &b_fID);

    bool drawMarker;

    for( Int_t i = 0; i < tree->GetEntries(); i++ ){
        drawMarker = false;
        
        tree->GetEntry( i );
        cout << m0 << " " << m12 << " " << fID << endl;
        
        TMarker marker;
        //marker.SetMarkerColor(4);
        marker.SetMarkerSize(2.5);
        marker.SetMarkerStyle(29);

        int _m0 = (int) m0;
        int _m12 = (int) m12;

        if(oredList.Contains("GG")){
            if( (_m0 == 700 && _m12 == 550) || (_m0 == 1162 && _m12 == 337) || (_m0 == 1250 && _m12 == 50) )
                drawMarker = true;
        } else if(oredList.Contains("SS")){
            if( (_m0 == 850 && _m12 == 100) || (_m0 == 450 && _m12 == 400))
                drawMarker = true;
        } else if(oredList.Contains("SG")){
            if( (_m0 == 1425 && _m12 == 525) || (_m0 == 1612 && _m12 == 37))
                drawMarker = true;
        }

        if (drawMarker)
            marker.DrawMarker(m0, m12);

        TString mySR = GetSRName(fID, useShape);
	lat.DrawLatex(m0,m12,mySR.Data());
	     
    }
    
    leg->Draw("same");
    // add up/down lines
    TLine *line1;
    TLine *line2;
    if (oredList.Contains("GG")) {
        line1 = new TLine( 972, 1412, 1062, 1412);
        line2 = new TLine( 972, 1355, 1062, 1355);
        cout << "GG line1" << endl;
        
    } else if (oredList.Contains("SS")) {
        line1 = new TLine( 793, 1128, 860, 1128); 
        line2 = new TLine( 793, 1081, 860, 1081); 
        cout << "SS line1" << endl;
    } else if (oredList.Contains("SG")) {
        line1 = new TLine( 1150, 1645, 1260, 1645); 
        line2 = new TLine( 1150, 1565, 1260, 1565); 
        cout << "SG line1" << endl;
    }
/*
    line1->SetLineWidth(2);
    line1->SetLineColor(c_myRed);
    line1->SetLineStyle(3);
    line1->Draw("SAME") ;

    line2->SetLineWidth(2);
    line2->SetLineColor(c_myRed);
    line2->SetLineStyle(3);
    line2->Draw("SAME") ;                
//.........这里部分代码省略.........

//.........这里部分代码省略.........
	  wgr->Add(gr,"p");
	  wlg->AddEntry(gr,f->label,"p");
	}	
	else {
	  wgr->Add(gr,"l");
	  wlg->AddEntry(gr,f->label,"l");
	}
      }
      f++;
    }
  
  mgrThry->Draw("c");
  legThry->Draw();

  // draw a line at 1
  cn->Modified();
  cn->Update();
  TFrame* frame = gPad->GetFrame();

  TLine *line1 = new TLine(frame->GetX1(),1.,frame->GetX2(),1.);
  line1->SetLineStyle(1);
  line1->Draw();

  cn->Update();
  cn->SaveAs(Form("%s.eps",psfile));
  cn->SaveAs(Form("%s.root",psfile));
  gSystem->Exec(Form("./replace_symbols.pl %s.eps",psfile));

  return;

  // remove everything but the graph
  cn->Update();
  TList *clist = cn->GetListOfPrimitives();
  frame = cn->GetFrame();
  for (int i=0; i<clist->GetSize(); ) {
    if (clist->At(i) != frame) {
      clist->RemoveAt(i);
    } else i++;
  }
  // draw markers in the corners
  TMarker *mkr = new TMarker(frame->GetX1(),frame->GetY1(),2);
  mkr->Draw();
  mkr = new TMarker(frame->GetX2(),frame->GetY1(),2);
  mkr->Draw();
  mkr = new TMarker(frame->GetX1(),frame->GetY2(),2);
  mkr->Draw();
  mkr = new TMarker(frame->GetX2(),frame->GetY2(),2);
  mkr->Draw();
  frame->SetLineColor(10);
  cn->Update();

  {
    datafile_t miller = { "figure_input/Miller/lattice.GMn.rtf","Miller",
			  "[0]","[1]/(-1.91)*(1+[0]/.71)*(1+[0]/.71)",
			  "([3]-[1])/(-1.91)*(1+[0]/.71)*(1+[0]/.71)",
			  "([1]-[2])/(-1.91)*(1+[0]/.71)*(1+[0]/.71)",
			  0,0,1,3,"F" };
    
    gr = OneGraph(&miller);
    TGraphAsymmErrors* egr = dynamic_cast<TGraphAsymmErrors*>(gr);
    if (egr && egr->GetEYhigh() && egr->GetEYhigh()[egr->GetN()/2]>0) {
      gr = toerror_band(egr);
      gr->SetLineStyle(1);
      gr->SetFillColor(gr->GetLineColor());
      gr->SetFillStyle(3000+miller.style);
    }
    
    gr->Draw("F");
    
    cn->Update();
    cn->SaveAs("gmngd_Miller_Overlay.eps");
    cn->SaveAs("gmngd_Miller_Overlay.root");
    clist->Remove(gr);
  }

  {
    datafile_t miller_spl = { "figure_input/Miller/lattice.GMn.spl3","Miller",
			      "[0]","[1]/(-1.91)*(1+[0]/.71)*(1+[0]/.71)",
			      "([3]-[1])/(-1.91)*(1+[0]/.71)*(1+[0]/.71)",
			      "([1]-[2])/(-1.91)*(1+[0]/.71)*(1+[0]/.71)",
			      0,0,1,3,"F" };
    
    gr = OneGraph(&miller_spl);
    TGraphAsymmErrors* egr = dynamic_cast<TGraphAsymmErrors*>(gr);
    if (egr && egr->GetEYhigh() && egr->GetEYhigh()[egr->GetN()/2]>0) {
      gr = toerror_band(egr);
      gr->SetLineStyle(1);
      gr->SetFillColor(gr->GetLineColor());
      gr->SetFillStyle(3000+miller_spl.style);
    }
    
    gr->Draw("F");
    
    cn->Update();
    cn->SaveAs("gmngd_Miller_Overlay_spl.eps");
    cn->SaveAs("gmngd_Miller_Overlay_spl.root");
    clist->Remove(gr);
  }

}

void drawMeasurement(int i, double m[5], char label[2][100], int aux[5],
		     double vstep, TH2F* histo, TCanvas* canvas) {

 
    double lowY = (i+1)*vstep;
    double uppY = (i+2)*vstep;

  //double lowX = histo->GetBinLowEdge(1);
  //double uppX = histo->GetBinLowEdge(histo->GetNbinsX()) +
  //              histo->GetBinWidth(histo->GetNbinsX());
    double lowX = 0.25;
    double uppX = 2.80;
    double widthX = uppX - lowX;

 
  // y-range of the histogram is [0...1]

  double startX = lowX + 0.04*widthX;
  
  TPaveText* text = new TPaveText(startX, lowY,
				  startX, uppY, "BR");
  text->SetTextAlign(12);
  text->SetFillColor(aux[1]);
  text->SetTextColor(aux[0]);
  text->SetLineColor(1);
  text->SetBorderSize(0);
  TText* t0 = text->AddText("    ");
  t0->SetTextSize(0.08);
  t0->SetTextFont(aux[2]);
  TText* t1 = text->AddText(label[0]);
  t1->SetTextSize(0.08);
  t1->SetTextFont(aux[2]);
  TText* t2 = text->AddText(label[1]);
  t2->SetTextSize(0.08);
  t2->SetTextFont(aux[2]);
  text->Draw();


  double ypos = 0.5*(lowY+uppY);
  double mean = m[0];
  double nErr1 = m[1];
  double pErr1 = m[2];
  double nErr2 = sqrt(m[1]*m[1]+m[3]*m[3]);
  double pErr2 = sqrt(m[2]*m[2]+m[4]*m[4]);

  // draw TGraphAsymmErrors 1 (stat only) |---*---|
  TMarker* measurement = new TMarker(mean, ypos, aux[4]);
  measurement->SetMarkerColor(aux[0]);
  measurement->SetMarkerStyle(aux[4]);

  measurement->SetMarkerSize(1.5);
  //measurement->SetMarkerSize(1.75);
  measurement->Draw();

  double vsizeErr1 = 0.09*vstep;
  TLine* l1 = new TLine(mean, ypos, mean-nErr1, ypos);
  l1->SetLineWidth(aux[3]);
  l1->SetLineColor(aux[0]);
  l1->Draw();
  TLine* l2 = new TLine(mean, ypos, mean+pErr1, ypos);
  l2->SetLineWidth(aux[3]);
  l2->SetLineColor(aux[0]);
  l2->Draw();
  TLine* l3 = new TLine(mean-nErr1, ypos-vsizeErr1,
			mean-nErr1, ypos+vsizeErr1);
  l3->SetLineWidth(aux[3]);
  l3->SetLineColor(aux[0]);
  l3->Draw();
  TLine* l4 = new TLine(mean+pErr1, ypos-vsizeErr1,
			mean+pErr1, ypos+vsizeErr1);
  l4->SetLineWidth(aux[3]);
  l4->SetLineColor(aux[0]);
  l4->Draw();

  // overlay TGraphAsymmErrors 2 (stat+syst) |----*-----|
  double vsizeErr2 = 0.12*vstep; 
  TLine* l5 = new TLine(mean, ypos, mean-nErr2, ypos);
  l5->SetLineWidth(aux[3]);
  l5->SetLineColor(aux[0]);
  l5->Draw();
  TLine* l6 = new TLine(mean, ypos, mean+pErr2, ypos);
  l6->SetLineWidth(aux[3]);
  l6->SetLineColor(aux[0]);
  l6->Draw();
  TLine* l7 = new TLine(mean-nErr2, ypos-vsizeErr2,
			mean-nErr2, ypos+vsizeErr2);
  l7->SetLineWidth(aux[3]);
  l7->SetLineColor(aux[0]);
  l7->Draw();
  TLine* l8 = new TLine(mean+pErr2, ypos-vsizeErr2,
			mean+pErr2, ypos+vsizeErr2);
  l8->SetLineWidth(aux[3]);
  l8->SetLineColor(aux[0]);
  l8->Draw();

  // draw measurement label "XXX+/-YY+/-ZZ"
  TPaveText* num = new TPaveText(uppX-0.32*widthX,
				 lowY, uppX-0.02*widthX, uppY, "BR");
  num->SetTextAlign(12);
  num->SetFillColor(aux[1]);
//.........这里部分代码省略.........

//.........这里部分代码省略.........
      for(unsigned int i=0; i<fr->J1_PseudoPoints.size(); i++)
	{
	  for(unsigned int j=0; j<fr->J3_PseudoPoints.size(); j++)
	    {
	      for(unsigned int k=0; k<fr->J4_PseudoPoints.size(); k++)
		{
		  double Rad  = FindR(fr->J1_PseudoPoints[i],fr->J3_PseudoPoints[j],fr->J4_PseudoPoints[k]);
		  double Xcen = FindX(fr->J1_PseudoPoints[i].X(),fr->J1_PseudoPoints[i].Y(),fr->J3_PseudoPoints[j].X(),fr->J3_PseudoPoints[j].Y(),fr->J4_PseudoPoints[k].X(),fr->J4_PseudoPoints[k].Y());
		  double Ycen = FindY(fr->J1_PseudoPoints[i].X(),fr->J1_PseudoPoints[i].Y(),fr->J3_PseudoPoints[j].X(),fr->J3_PseudoPoints[j].Y(),fr->J4_PseudoPoints[k].X(),fr->J4_PseudoPoints[k].Y());
		  Hough->Fill(Xcen,Ycen,Rad);
		  Houghxy->Fill(Xcen,Ycen);
		  Houghyr->Fill(Ycen,Rad);
		  Houghxr->Fill(Xcen,Rad);
		}
	    }
	}
    }
  
  //J2,J3,J4;
  if(fr->J2_PseudoPoints.size() >= 1 && fr->J3_PseudoPoints.size() >= 1 && fr->J4_PseudoPoints.size() >= 1)
    {
      for(unsigned int i=0; i<fr->J2_PseudoPoints.size(); i++)
	{
	  for(unsigned int j=0; j<fr->J3_PseudoPoints.size(); j++)
	    {
	      for(unsigned int k=0; k<fr->J4_PseudoPoints.size(); k++)
		{
		  double Rad  = FindR(fr->J2_PseudoPoints[i],fr->J3_PseudoPoints[j],fr->J4_PseudoPoints[k]);
		  double Xcen = FindX(fr->J2_PseudoPoints[i].X(),fr->J2_PseudoPoints[i].Y(),fr->J3_PseudoPoints[j].X(),fr->J3_PseudoPoints[j].Y(),fr->J4_PseudoPoints[k].X(),fr->J4_PseudoPoints[k].Y());
		  double Ycen = FindY(fr->J2_PseudoPoints[i].X(),fr->J2_PseudoPoints[i].Y(),fr->J3_PseudoPoints[j].X(),fr->J3_PseudoPoints[j].Y(),fr->J4_PseudoPoints[k].X(),fr->J4_PseudoPoints[k].Y());
		  Hough->Fill(Xcen,Ycen,Rad);
		  Houghxy->Fill(Xcen,Ycen);
		  Houghyr->Fill(Ycen,Rad);
		  Houghxr->Fill(Xcen,Rad);
		}
	    }
	}
    }

  /*
//!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!DO NOT ERASE!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
  //Forming PseudoPoints:
  for(unsigned int ps=0; ps<fr->AllX.size(); ps++)
    {
      for(unsigned int s=0; s<fr->AllY.size(); s++)
	{
	   fr->PseudoPoints.push_back(TVector3(fr->AllX[ps].Cor(),fr->AllY[s].Cor(),0));
	}
    }
    
  //Full Combinatorial:
   for(unsigned int i=0; i<fr->PseudoPoints.size()-2; i++)
     {
       for(unsigned int j=i+1; j<fr->PseudoPoints.size()-1; j++)
 	{
 	  for(unsigned int k=j+1; k<fr->PseudoPoints.size(); k++)
 	    {
 	      double Rad = FindR(fr->PseudoPoints[i],fr->PseudoPoints[j],fr->PseudoPoints[k]);
 	      double Xcen = FindX(fr->PseudoPoints[i].X(),fr->PseudoPoints[i].Y(),fr->PseudoPoints[j].X(),fr->PseudoPoints[j].Y(),fr->PseudoPoints[k].X(),fr->PseudoPoints[k].Y());
 	      double Ycen = FindY(fr->PseudoPoints[i].X(),fr->PseudoPoints[i].Y(),fr->PseudoPoints[j].X(),fr->PseudoPoints[j].Y(),fr->PseudoPoints[k].X(),fr->PseudoPoints[k].Y());
 	      Hough->Fill(Xcen,Ycen,Rad);
 	      Houghxy->Fill(Xcen,Ycen);
 	      Houghyr->Fill(Ycen,Rad);
 	      Houghxr->Fill(Xcen,Rad);
	      }
 	}
     }
//!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
  */      
  int xbin, ybin, zbin;
  xbin=0; ybin=0; zbin=0;
  Hough->GetMaximumBin(xbin, ybin, zbin);
  //cout << "xbin= " << xbin << " ybin= " << ybin << " zbin= " << zbin << endl;

  TAxis *xaxis = Hough->GetXaxis();  
  double Xrec=xaxis->GetBinCenter(xbin);
  cout<<"Xrec= "<< Xrec <<endl;

  TAxis *yaxis = Hough->GetYaxis();  
  double Yrec=yaxis->GetBinCenter(ybin);
  cout<<"Yrec= "<< Yrec <<endl;

  TAxis *zaxis = Hough->GetZaxis();  
  double Rrec=zaxis->GetBinCenter(zbin);
  cout<<"Rrec= "<< Rrec <<endl;

  //Drawing the founded ring and its center:
  TEllipse ring (Xrec,Yrec,Rrec,Rrec,1,360,0);
  ring.SetLineColor(2);
  ring.SetFillStyle(0);
  ring.DrawEllipse(Xrec,Yrec,Rrec,Rrec,0,360,0);
  HBD->Update();

  TMarker circumcenter (Xrec,Yrec,8);
  circumcenter.SetMarkerColor(2);
  circumcenter.SetMarkerSize(1);
  circumcenter.DrawMarker(Xrec,Yrec);
  HBD->Update();  
  
}