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candlehisto.C File Reference

Detailed Description

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Example showing how to combine the various candle plot options.

void candlehisto()
{
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, 100, -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 title = TString::Format("CANDLEX%d", i);
TH2I *myhist = (TH2I*)h1->DrawCopy(title);
myhist->SetTitle(title);
}
TCanvas *c2 = new TCanvas("c2", "Violin Presets", 800, 300);
c2->Divide(2, 1);
for (int i = 1; i < 3; i++) {
c2->cd(i);
TString title = TString::Format("VIOLINX%d", i);
TH2I *myhist = (TH2I*)h1->DrawCopy(title);
myhist->SetFillColor(kGray + 2);
}
TCanvas *c3 = new TCanvas("c3", "Playing with candle and violin-options", 800, 600);
c3->Divide(3, 2);
TString myopt[6] = {"1000000", "2000000", "3000000", "1112111", "112111", "112111"};
for (int i = 0; i < 6; i++) {
c3->cd(i + 1);
TString title = TString::Format("candlex(%s)", myopt[i].Data());
TH2I *myhist = (TH2I*)h1->DrawCopy(title);
if (i == 4) {
TH2I *myhist2 = (TH2I*)h1->DrawCopy("candlex(1000000) same");
myhist2->SetFillColor(kRed);
}
if (i == 5) {
myhist->SetBarWidth(0.2);
myhist->SetBarOffset(0.25);
TH2I *myhist2 = (TH2I*)h1->DrawCopy("candlex(2000000) same");
myhist2->SetFillColor(kRed);
myhist2->SetBarWidth(0.6);
myhist2->SetBarOffset(-0.5);
}
myhist->SetTitle(title);
}
}
@ kGray
Definition Rtypes.h:65
@ kRed
Definition Rtypes.h:66
@ kYellow
Definition Rtypes.h:66
virtual void SetFillColor(Color_t fcolor)
Set the fill area color.
Definition TAttFill.h:37
The Canvas class.
Definition TCanvas.h:23
virtual void SetBarOffset(Float_t offset=0.25)
Set the bar offset as fraction of the bin width for drawing mode "B".
Definition TH1.h:364
void SetTitle(const char *title) override
Change/set the title.
Definition TH1.cxx:6709
TAxis * GetXaxis()
Definition TH1.h:324
virtual Int_t Fill(Double_t x)
Increment bin with abscissa X by 1.
Definition TH1.cxx:3344
virtual TH1 * DrawCopy(Option_t *option="", const char *name_postfix="_copy") const
Copy this histogram and Draw in the current pad.
Definition TH1.cxx:3113
virtual void SetBarWidth(Float_t width=0.5)
Set the width of bars as fraction of the bin width for drawing mode "B".
Definition TH1.h:365
2-D histogram with an int per channel (see TH1 documentation)
Definition TH2.h:225
virtual void SetTitle(const char *title="")
Set the title of the TNamed.
Definition TNamed.cxx:164
This is the base class for the ROOT Random number generators.
Definition TRandom.h:27
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:275
Basic string class.
Definition TString.h:139
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:2378
return c1
Definition legend1.C:41
TH1F * h1
Definition legend1.C:5
return c2
Definition legend2.C:14
return c3
Definition legend3.C:15
Author
Georg Troska

Definition in file candlehisto.C.