31 bh->SetFillStyle(3001);
36 bh->SetX1(histo->GetBinLowEdge(
hbin));
37 bh->SetY1(histo->GetMinimum());
38 bh->SetX2(histo->GetBinWidth(
hbin) + histo->GetBinLowEdge(
hbin));
39 bh->SetY2(histo->GetBinContent(
hbin));
45 th->SetTextColor(
bh->GetFillColor());
49 th->SetText(histo->GetXaxis()->GetXmax()*0.75, histo->GetMaximum()*0.5,
70 auto dir =
gROOT->GetTutorialDir();
71 dir.Append(
"/hsimple.C");
72 dir.ReplaceAll(
"/./",
"/");
74 auto file = (
TFile*)
gROOT->ProcessLineFast(
"hsimple(1)");
77 file->GetObject(
"ntuple",
ntuple);
81 Canvas1->HighlightConnect(
"HighlightBinId(TVirtualPad*,TObject*,Int_t,Int_t)");
83 const char *cut =
"pz > 3.0";
84 ntuple->Draw(
"px:py", cut);
87 auto info =
new TText(0.0, 4.5,
"please move the mouse over the graph");
88 info->SetTextAlign(22);
89 info->SetTextSize(0.03);
96 auto Canvas2 =
new TCanvas(
"Canvas2",
"Canvas2", 505, 0, 600, 400);
97 ntuple->Draw(
"TMath::Sqrt(px*px + py*py + pz*pz)>>histo(100, 0, 15)", cut);
100 ntuple->Draw(
"px:py:pz:i", cut,
"goff");
ROOT::Detail::TRangeCast< T, true > TRangeDynCast
TRangeDynCast is an adapter class that allows the typed iteration through a TCollection.
winID h TVirtualViewer3D TVirtualGLPainter p
A ROOT file is an on-disk file, usually with extension .root, that stores objects in a file-system-li...
A TGraph is an object made of two arrays X and Y with npoints each.
virtual void SetHighlight(Bool_t set=kTRUE)
Set highlight (enable/disable) mode for the graph by default highlight mode is disable.
TObject * FindObject(const char *name) const override
Search object named name in the list of functions.
1-D histogram with a float per channel (see TH1 documentation)
A simple TTree restricted to a list of float variables only.
Mother of all ROOT objects.
static TString Format(const char *fmt,...)
Static method which formats a string using a printf style format descriptor and return a TString.
Base class for several text objects.
TVirtualPad is an abstract base class for the Pad and Canvas classes.
Double_t Sqrt(Double_t x)
Returns the square root of x.