Logo ROOT   6.21/01
Reference Guide
glbox.C
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1 /// \file
2 /// \ingroup tutorial_gl
3 /// Display a 3D histogram using GL (box option).
4 ///
5 /// \macro_image(nobatch)
6 /// \macro_code
7 ///
8 /// \author Timur Pocheptsov
9 
10 void glbox()
11 {
13  TCanvas *c = new TCanvas("glbox","TH3 Drawing", 100, 10, 850, 400);
14  TPaveLabel *title = new TPaveLabel(0.04, 0.86, 0.96, 0.98,
15  "\"glbox\" and \"glbox1\" options for TH3.");
16  title->SetFillColor(32);
17  title->Draw();
18 
19  TPad *boxPad = new TPad("box", "box", 0.02, 0.02, 0.48, 0.82);
20  TPad *box1Pad = new TPad("box1", "box1", 0.52, 0.02, 0.98, 0.82);
21  boxPad->Draw();
22  box1Pad->Draw();
23 
24  TH3F *h31 = new TH3F("h31", "h31", 10, -1, 1, 10, -1, 1, 10, -1, 1);
25  TF3 * gxy = new TF3("gaus2","xygaus");
26  gxy->SetParameters(1,0,1,0,0.3);
27  h31->FillRandom("gaus2");
28  h31->SetFillColor(2);
29  boxPad->cd();
30  h31->Draw("glbox");
31 
32  TH3F *h32 = new TH3F("h32", "h32", 10, -2, 2, 10, -1, 1, 10, -3, 3);
33  TF3 * g3 = new TF3("gaus3","xyzgaus");
34  g3->SetParameters(1,0,1,0,1,0,1);
35  h32->FillRandom("gaus3");
36  h32->SetFillColor(4);
37  box1Pad->cd();
38  h32->Draw("glbox1");
39 }
virtual void SetParameters(const Double_t *params)
Definition: TF1.h:638
virtual void FillRandom(const char *fname, Int_t ntimes=5000)
Fill histogram following distribution in function fname.
Definition: TH3.cxx:668
3-D histogram with a float per channel (see TH1 documentation)}
Definition: TH3.h:267
R__EXTERN TStyle * gStyle
Definition: TStyle.h:410
TVirtualPad * cd(Int_t subpadnumber=0)
Set Current pad.
Definition: TPad.cxx:593
virtual void Draw(Option_t *option="")
Draw Pad in Current pad (re-parent pad if necessary).
Definition: TPad.cxx:1284
void SetCanvasPreferGL(Bool_t prefer=kTRUE)
Definition: TStyle.h:323
A Pave (see TPave) with a text centered in the Pave.
Definition: TPaveLabel.h:20
virtual void Draw(Option_t *option="")
Draw this histogram with options.
Definition: TH1.cxx:2981
virtual void SetFillColor(Color_t fcolor)
Set the fill area color.
Definition: TAttFill.h:37
A 3-Dim function with parameters.
Definition: TF3.h:28
The most important graphics class in the ROOT system.
Definition: TPad.h:29
The Canvas class.
Definition: TCanvas.h:31
virtual void Draw(Option_t *option="")
Draw this pavelabel with its current attributes.
Definition: TPaveLabel.cxx:77
#define c(i)
Definition: RSha256.hxx:101
const Bool_t kTRUE
Definition: RtypesCore.h:87