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Reference Guide
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
13 leg->Draw();
14 return c2;
15}
16
TCanvas
The Canvas class.
Definition: TCanvas.h:31
TH1F
1-D histogram with a float per channel (see TH1 documentation)}
Definition: TH1.h:571
TH1
The TH1 histogram class.
Definition: TH1.h:56
TLegend
This class displays a legend box (TPaveText) containing several legend entries.
Definition: TLegend.h:23
TLegend::AddEntry
TLegendEntry * AddEntry(const TObject *obj, const char *label="", Option_t *option="lpf")
Add a new entry to this legend.
Definition: TLegend.cxx:330
TLegend::Draw
virtual void Draw(Option_t *option="")
Draw this legend with its current attributes.
Definition: TLegend.cxx:423
TObject
Mother of all ROOT objects.
Definition: TObject.h:37
c2
return c2
Definition: legend2.C:14
leg
TLegend * leg
Definition: legend2.C:4
h
TH1 * h
Definition: legend2.C:5