Logo ROOT   6.10/09
Reference Guide
hlabels2.C File Reference

Detailed Description

View in nbviewer Open in SWAN 2-D histograms with alphanumeric labels.

pict1_hlabels2.C.png
TCanvas *hlabels2()
{
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",10,10,600,600);
c1->SetGrid();
c1->SetLeftMargin(0.15);
c1->SetBottomMargin(0.15);
TH2F *h = new TH2F("h","test",3,0,3,2,0,2);
h->SetStats(0);
for (Int_t i=0;i<15000;i++) {
Int_t rx = gRandom->Rndm()*nx;
Int_t ry = gRandom->Rndm()*ny;
h->Fill(people[ry],month[rx],1);
}
h->LabelsDeflate("X");
h->LabelsDeflate("Y");
h->LabelsOption("v");
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();
return c1;
}
Author
Rene Brun

Definition in file hlabels2.C.