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Reference Guide
timeonaxis2.C File Reference

Detailed Description

View in nbviewer Open in SWAN Define the time offset as 2003, January 1st.

TCanvas *timeonaxis2() {
TCanvas *ct2 = new TCanvas("ct2","ct2",10,10,700,500);
TDatime T0(2003, 1, 1, 0, 0, 0);
int X0 = T0.Convert();
// Define the lowest histogram limit as 2002, September 23rd
TDatime T1(2002, 9, 23, 0, 0, 0);
int X1 = T1.Convert()-X0;
// Define the highest histogram limit as 2003, March 7th
TDatime T2(2003, 3, 7, 0, 0, 0);
int X2 = T2.Convert(1)-X0;
TH1F * h1 = new TH1F("h1","test",100,X1,X2);
for (Int_t i=0;i<30000;i++) {
Double_t noise = r.Gaus(0.5*(X1+X2),0.1*(X2-X1));
h1->Fill(noise);
}
h1->GetXaxis()->SetTimeFormat("%Y/%m/%d");
h1->Draw();
return ct2;
}
int Int_t
Definition: RtypesCore.h:45
double Double_t
Definition: RtypesCore.h:59
Option_t Option_t TPoint TPoint const char GetTextMagnitude GetFillStyle GetLineColor GetLineWidth GetMarkerStyle GetTextAlign GetTextColor GetTextSize void char Point_t Rectangle_t WindowAttributes_t Float_t r
R__EXTERN TStyle * gStyle
Definition: TStyle.h:414
virtual void SetLabelSize(Float_t size=0.04)
Set size of axis labels.
Definition: TAttAxis.cxx:206
virtual void SetTimeDisplay(Int_t value)
Definition: TAxis.h:162
virtual void SetTimeFormat(const char *format="")
Change the format used for time plotting.
Definition: TAxis.cxx:1052
The Canvas class.
Definition: TCanvas.h:23
This class stores the date and time with a precision of one second in an unsigned 32 bit word (950130...
Definition: TDatime.h:37
1-D histogram with a float per channel (see TH1 documentation)}
Definition: TH1.h:574
TAxis * GetXaxis()
Definition: TH1.h:319
virtual Int_t Fill(Double_t x)
Increment bin with abscissa X by 1.
Definition: TH1.cxx:3338
void Draw(Option_t *option="") override
Draw this histogram with options.
Definition: TH1.cxx:3060
This is the base class for the ROOT Random number generators.
Definition: TRandom.h:27
void SetTimeOffset(Double_t toffset)
Change the time offset for time plotting.
Definition: TStyle.cxx:1806
TH1F * h1
Definition: legend1.C:5
#define T2
Definition: md5.inl:147
#define T1
Definition: md5.inl:146
Author
Olivier Couet

Definition in file timeonaxis2.C.