doc/v632/timeonaxis2_8C.html

void timeonaxis2() {

   auto ct2 = new TCanvas("ct2","ct2",10,10,700,500);


   TDatime T0(2003, 1, 1, 0, 0, 0);

   int X0 = T0.Convert();

   gStyle->SetTimeOffset(X0);


   // 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;


   auto h1 = new TH1F("h1","test",100,X1,X2);


   TRandom r;

   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()->SetTimeDisplay(1);

   h1->GetXaxis()->SetLabelSize(0.03);

   h1->GetXaxis()->SetTimeFormat("%Y/%m/%d");

   h1->Draw();

}

Int_t
int Int_t
Definition RtypesCore.h:45

Double_t
double Double_t
Definition RtypesCore.h:59

r
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
Definition TGWin32VirtualXProxy.cxx:168

i
Int_t i
Definition TGraphAsymmErrors.cxx:1306

gStyle
R__EXTERN TStyle * gStyle
Definition TStyle.h:433

TCanvas
The Canvas class.
Definition TCanvas.h:23

TDatime
This class stores the date and time with a precision of one second in an unsigned 32 bit word (950130...
Definition TDatime.h:37

TH1F
1-D histogram with a float per channel (see TH1 documentation)
Definition TH1.h:621

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

h1
TH1F * h1
Definition legend1.C:5

T2
#define T2
Definition md5.inl:147

T1
#define T1
Definition md5.inl:146