doc/v606/labels2_8C.html

void labels2()

{

   Int_t i;

   const Int_t nx = 12;

   const Int_t ny = 20;

   const char *month[nx]  = {"January","February","March","April",

      "May","June","July","August","September","October",

      "November","December"};

   const char *people[ny] = {"Jean","Pierre","Marie","Odile",

      "Sebastien","Fons","Rene","Nicolas","Xavier","Greg",

      "Bjarne","Anton","Otto","Eddy","Peter","Pasha",

      "Philippe","Suzanne","Jeff","Valery"};

   TCanvas *c1 = new TCanvas("c1","demo bin labels",

      10,10,800,800);

   c1->SetGrid();

   c1->SetLeftMargin(0.15);

   c1->SetBottomMargin(0.15);

   TH2F *h = new TH2F("h","test",nx,0,nx,ny,0,ny);

   for (i=0;i<5000;i++) {

      h->Fill(gRandom->Gaus(0.5*nx,0.2*nx),

         gRandom->Gaus(0.5*ny,0.2*ny));

   }

   h->SetStats(0);

   for (i=1;i<=nx;i++) h->GetXaxis()->SetBinLabel(i,month[i-1]);

   for (i=1;i<=ny;i++) h->GetYaxis()->SetBinLabel(i,people[i-1]);

   h->Draw("text");


   TPaveText *pt = new TPaveText(0.6,0.85,0.98,0.98,"brNDC");

   pt->SetFillColor(18);

   pt->SetTextAlign(12);

   pt->AddText("Use the axis Context Menu LabelsOption");

   pt->AddText(" \"a\"   to sort by alphabetic order");

   pt->AddText(" \">\"   to sort by decreasing values");

   pt->AddText(" \"<\"   to sort by increasing values");

   pt->Draw();

}