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latex3.C File Reference

Detailed Description

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Example illustrating a TPaveText with Latex inside.

void latex3() {
TCanvas *c1 = new TCanvas("c1");
TPaveText *pt = new TPaveText(.05,.1,.95,.8);
pt->AddText("#frac{2s}{#pi#alpha^{2}} #frac{d#sigma}{dcos#theta} "
"(e^{+}e^{-} #rightarrow f#bar{f} ) = #left| #frac{1}{1 - #Delta#alpha} "
"#right|^{2} (1+cos^{2}#theta)");
pt->AddText("+ 4 Re #left{ #frac{2}{1 - #Delta#alpha} #chi(s) "
"#[]{#hat{g}_{#nu}^{e}#hat{g}_{#nu}^{f} "
"(1 + cos^{2}#theta) + 2 #hat{g}_{a}^{e}#hat{g}_{a}^{f} cos#theta) } #right}");
pt->AddText("+ 16#left|#chi(s)#right|^{2} "
"#left[(#hat{g}_{a}^{e}^{2} + #hat{g}_{v}^{e}^{2})"
"(#hat{g}_{a}^{f}^{2} + #hat{g}_{v}^{f}^{2})(1+cos^{2}#theta)"
"+ 8 #hat{g}_{a}^{e} #hat{g}_{a}^{f} #hat{g}_{v}^{e}"
"#hat{g}_{v}^{f}cos#theta#right] ");
pt->SetLabel("Born equation");
pt->Draw();
}
The Canvas class.
Definition TCanvas.h:23
A Pave (see TPave) with text, lines or/and boxes inside.
Definition TPaveText.h:21
virtual TText * AddText(Double_t x1, Double_t y1, const char *label)
Add a new Text line to this pavetext at given coordinates.
virtual void SetLabel(const char *label)
Definition TPaveText.h:61
void Draw(Option_t *option="") override
Draw this pavetext with its current attributes.
TPaveText * pt
return c1
Definition legend1.C:41
Author
Rene Brun

Definition in file latex3.C.