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Detailed Description

Display a 3D histogram using GL (box option).

void glh3c()
{
TH3F *h1 = new TH3F("h1", "h1", 10, -1., 1., 10, -1., 1., 10, -1., 1.);
TF3 *g3 = new TF3("gaus3", "xyzgaus");
g3->SetParameters(1, 0, 1, 0, 1, 0, 1);
h1->FillRandom("gaus3");
TH3F *h2 = new TH3F("h2", "h2", 10, -1., 1., 10, -1., 1., 10, -1., 1.);
TF3 *l3 = new TF3("landau3", "landau(x,[0],[1],[2])*gaus(y,1,[3],[4])*gaus(z,1,[3],[4])");
l3->SetParameters(1, 0, 1, 0., 0.5);
h2->FillRandom("landau3");
h2->SetFillColor(kGreen);
TH3F *h3 = new TH3F("h3", "h3", 10, -1., 1., 10, -1., 1., 10, -1., 1.);
TF3 *gx = new TF3("gaus1", "gaus(x)");
gx->SetParameters(1, 0, 1);
h3->FillRandom("gaus1");
h3->SetFillColor(kBlue);
comp->AddTH3(h1);
comp->AddTH3(h3);
comp->Draw();
TPaveLabel *title = new TPaveLabel(0.04, 0.86, 0.96, 0.98, "TH3 composition.");
title->SetFillColor(32);
title->Draw();
}
constexpr Bool_t kTRUE
Definition RtypesCore.h:93
@ kRed
Definition Rtypes.h:66
@ kGreen
Definition Rtypes.h:66
@ kBlue
Definition Rtypes.h:66
R__EXTERN TStyle * gStyle
Definition TStyle.h:436
virtual void SetFillColor(Color_t fcolor)
Set the fill area color.
Definition TAttFill.h:37
virtual void SetParameters(const Double_t *params)
Definition TF1.h:677
A 3-Dim function with parameters.
Definition TF3.h:28
void AddTH3(const TH3 *hist, ETH3BinShape shape=kBox)
Add TH3 into collection.
virtual void FillRandom(TF1 *f1, Int_t ntimes=5000, TRandom *rng=nullptr)
Definition TH1.cxx:3530
void Draw(Option_t *option="") override
Draw this histogram with options.
Definition TH1.cxx:3068
3-D histogram with a float per channel (see TH1 documentation)
Definition TH3.h:318
A Pave (see TPave) with a text centered in the Pave.
Definition TPaveLabel.h:20
void Draw(Option_t *option="") override
Draw this pavelabel with its current attributes.
void SetCanvasPreferGL(Bool_t prefer=kTRUE)
Definition TStyle.h:341
TH1F * h1
Definition legend1.C:5
Author
Timur Pocheptsov

Definition in file glh3c.C.