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legend2.C
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1{
2 TCanvas *c2 = new TCanvas("c2","c2",500,300);
3
4 TLegend* leg = new TLegend(0.2, 0.2, .8, .8);
5 TH1* h = new TH1F("", "", 1, 0, 1);
6
7 leg->AddEntry(h, "Histogram \"h\"", "l");
8 leg->AddEntry((TObject*)0, "", "");
9 leg->AddEntry((TObject*)0, "Some text", "");
10 leg->AddEntry((TObject*)0, "", "");
11 leg->AddEntry(h, "Histogram \"h\" again", "l");
12
14 return c2;
15}
16
The Canvas class.
Definition TCanvas.h:23
1-D histogram with a float per channel (see TH1 documentation)}
Definition TH1.h:578
TH1 is the base class of all histogram classes in ROOT.
Definition TH1.h:58
This class displays a legend box (TPaveText) containing several legend entries.
Definition TLegend.h:23
TLegendEntry * AddEntry(const TObject *obj, const char *label="", Option_t *option="lpf")
Add a new entry to this legend.
Definition TLegend.cxx:317
void Draw(Option_t *option="") override
Draw this legend with its current attributes.
Definition TLegend.cxx:422
Mother of all ROOT objects.
Definition TObject.h:41
TH1 * h
Definition legend2.C:5
return c2
Definition legend2.C:14
TLegend * leg
Definition legend2.C:4