doc/v634/hlabels2_8C.html

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->SetCanExtend(TH1::kAllAxes);

   h->SetStats(0);

   gRandom->SetSeed();

   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;

}

h
#define h(i)
Definition RSha256.hxx:106

Int_t
int Int_t
Definition RtypesCore.h:45

TRangeDynCast
ROOT::Detail::TRangeCast< T, true > TRangeDynCast
TRangeDynCast is an adapter class that allows the typed iteration through a TCollection.
Definition TCollection.h:358

gRandom
R__EXTERN TRandom * gRandom
Definition TRandom.h:62

ROOT::Detail::TRangeCast
Definition TCollection.h:311

TAttFill::SetFillColor
virtual void SetFillColor(Color_t fcolor)
Set the fill area color.
Definition TAttFill.h:37

TAttText::SetTextAlign
virtual void SetTextAlign(Short_t align=11)
Set the text alignment.
Definition TAttText.h:42

TCanvas
The Canvas class.
Definition TCanvas.h:23

TH1::kAllAxes
@ kAllAxes
Definition TH1.h:76

TH2F
2-D histogram with a float per channel (see TH1 documentation)
Definition TH2.h:307

TPaveText
A Pave (see TPave) with text, lines or/and boxes inside.
Definition TPaveText.h:21

TPaveText::AddText
virtual TText * AddText(Double_t x1, Double_t y1, const char *label)
Add a new Text line to this pavetext at given coordinates.
Definition TPaveText.cxx:191

TPaveText::Draw
void Draw(Option_t *option="") override
Draw this pavetext with its current attributes.
Definition TPaveText.cxx:242

TRandom::SetSeed
virtual void SetSeed(ULong_t seed=0)
Set the random generator seed.
Definition TRandom.cxx:615

TRandom::Rndm
Double_t Rndm() override
Machine independent random number generator.
Definition TRandom.cxx:559

pt
TPaveText * pt
Definition entrylist_figure1.C:7

c1
return c1
Definition legend1.C:41