doc/hackathon/hist050__Graphics__candle__plot__options_8C.html

void hist050_Graphics_candle_plot_options()

{

   TCanvas *c1 = new TCanvas("c1", "Candle Presets", 800, 600);

   c1->Divide(3, 2);


   TRandom *rng = new TRandom();

   TH2I *h1 = new TH2I("h1", "Sin", 18, 0, 360, 300, -1.5, 1.5);

   h1->GetXaxis()->SetTitle("Deg");

   float myRand;

   for (int i = 0; i < 360; i += 10) {

      for (int j = 0; j < 100; j++) {

         myRand = rng->Gaus(sin(i * 3.14 / 180), 0.2);

         h1->Fill(i, myRand);

      }

   }

   for (int i = 1; i < 7; i++) {

      c1->cd(i);

      TString str = TString::Format("candlex%d", i);

      TH2I *myhist = (TH2I *)h1->DrawCopy(str);

      myhist->SetTitle(str);

   }


   TCanvas *c2 = new TCanvas("c2", "Candle Individual", 800, 600);

   c2->Divide(4, 4);

   char myopt[16][8] = {"0",   "1",    "11",   "21",    "31",     "30",     "111",   "311",

                        "301", "1111", "2321", "12111", "112111", "212111", "312111"};

   for (int i = 0; i < 15; i++) {

      c2->cd(i + 1);

      TString str = TString::Format("candlex(%s)", myopt[i]);

      TH2I *myhist = (TH2I *)h1->DrawCopy(str);

      myhist->SetTitle(str);

   }

}

TCanvas
The Canvas class.
Definition TCanvas.h:23

TH1::SetTitle
void SetTitle(const char *title) override
Change/set the title.
Definition TH1.cxx:6836

TH2I
2-D histogram with an int per channel (see TH1 documentation)
Definition TH2.h:245

TRandom
This is the base class for the ROOT Random number generators.
Definition TRandom.h:27

TRandom::Gaus
virtual Double_t Gaus(Double_t mean=0, Double_t sigma=1)
Samples a random number from the standard Normal (Gaussian) Distribution with the given mean and sigm...
Definition TRandom.cxx:274

TString
Basic string class.
Definition TString.h:138

TString::Format
static TString Format(const char *fmt,...)
Static method which formats a string using a printf style format descriptor and return a TString.
Definition TString.cxx:2385

c1
return c1
Definition legend1.C:41

h1
TH1F * h1
Definition legend1.C:5

c2
return c2
Definition legend2.C:14