doc/v636/hist020__TH2__draw_8C.html

void hist020_TH2_draw()

{

   gStyle->SetOptStat(0);

   gStyle->SetCanvasColor(33);

   gStyle->SetFrameFillColor(18);

   TF2 *f2 = new TF2("f2", "xygaus + xygaus(5) + xylandau(10)", -4, 4, -4, 4);

   Double_t params[] = {130, -1.4, 1.8, 1.5, 1, 150, 2, 0.5, -2, 0.5, 3600, -2, 0.7, -3, 0.3};

   f2->SetParameters(params);

   auto h2 = new TH2F("h2", "xygaus + xygaus(5) + xylandau(10)", 20, -4, 4, 20, -4, 4);

   h2->SetFillColor(46);

   h2->FillRandom("f2", 40000);

   TPaveLabel pl;


   // basic 2-d options

   Float_t xMin = 0.67, yMin = 0.875, xMax = 0.85, yMax = 0.95;

   Int_t cancolor = 17;

   auto c2h = new TCanvas("c2h", "2-d options", 10, 10, 800, 600);

   c2h->Divide(2, 2);

   c2h->SetFillColor(cancolor);

   c2h->cd(1);

   h2->Draw();

   pl.DrawPaveLabel(xMin, yMin, xMax, yMax, "SCAT", "brNDC");

   c2h->cd(2);

   h2->Draw("box");

   pl.DrawPaveLabel(xMin, yMin, xMax, yMax, "BOX", "brNDC");

   c2h->cd(3);

   h2->Draw("arr");

   pl.DrawPaveLabel(xMin, yMin, xMax, yMax, "ARR", "brNDC");

   c2h->cd(4);

   h2->Draw("colz");

   pl.DrawPaveLabel(xMin, yMin, xMax, yMax, "COLZ", "brNDC");

   c2h->Update();


   // text option

   auto ctext = new TCanvas("ctext", "text option", 50, 50, 800, 600);

   gPad->SetGrid();

   ctext->SetFillColor(cancolor);

   ctext->SetGrid();

   h2->Draw("text");

   pl.DrawPaveLabel(xMin, yMin, xMax, yMax, "TEXT", "brNDC");

   ctext->Update();


   // contour options

   auto cont = new TCanvas("contours", "contours", 100, 100, 800, 600);

   cont->Divide(2, 2);

   gPad->SetGrid();

   cont->SetFillColor(cancolor);

   cont->cd(1);

   h2->Draw("contz");

   pl.DrawPaveLabel(xMin, yMin, xMax, yMax, "CONTZ", "brNDC");

   cont->cd(2);

   gPad->SetGrid();

   h2->Draw("cont1");

   pl.DrawPaveLabel(xMin, yMin, xMax, yMax, "CONT1", "brNDC");

   cont->cd(3);

   gPad->SetGrid();

   h2->Draw("cont2");

   pl.DrawPaveLabel(xMin, yMin, xMax, yMax, "CONT2", "brNDC");

   cont->cd(4);

   gPad->SetGrid();

   h2->Draw("cont3");

   pl.DrawPaveLabel(xMin, yMin, xMax, yMax, "CONT3", "brNDC");

   cont->Update();


   // lego options

   auto lego = new TCanvas("lego", "lego options", 150, 150, 800, 600);

   lego->Divide(2, 2);

   lego->SetFillColor(cancolor);

   lego->cd(1);

   h2->Draw("lego");

   pl.DrawPaveLabel(xMin, yMin, xMax, yMax, "LEGO", "brNDC");

   lego->cd(2);

   h2->Draw("lego1");

   pl.DrawPaveLabel(xMin, yMin, xMax, yMax, "LEGO1", "brNDC");

   lego->cd(3);

   gPad->SetTheta(61);

   gPad->SetPhi(-82);

   h2->Draw("surf1pol");

   pl.DrawPaveLabel(xMin, yMin, xMax + 0.05, yMax, "SURF1POL", "brNDC");

   lego->cd(4);

   gPad->SetTheta(21);

   gPad->SetPhi(-90);

   h2->Draw("surf1cyl");

   pl.DrawPaveLabel(xMin, yMin, xMax + 0.05, yMax, "SURF1CYL", "brNDC");

   lego->Update();


   // surface options

   auto surf = new TCanvas("surfopt", "surface options", 200, 200, 800, 600);

   surf->Divide(2, 2);

   surf->SetFillColor(cancolor);

   surf->cd(1);

   h2->Draw("surf1");

   pl.DrawPaveLabel(xMin, yMin, xMax, yMax, "SURF1", "brNDC");

   surf->cd(2);

   h2->Draw("surf2z");

   pl.DrawPaveLabel(xMin, yMin, xMax, yMax, "SURF2Z", "brNDC");

   surf->cd(3);

   h2->Draw("surf3");

   pl.DrawPaveLabel(xMin, yMin, xMax, yMax, "SURF3", "brNDC");

   surf->cd(4);

   h2->Draw("surf4");

   pl.DrawPaveLabel(xMin, yMin, xMax, yMax, "SURF4", "brNDC");

   surf->Update();

}

Int_t
int Int_t
Definition RtypesCore.h:45

Float_t
float Float_t
Definition RtypesCore.h:57

Double_t
double Double_t
Definition RtypesCore.h:59

TRangeDynCast
ROOT::Detail::TRangeCast< T, true > TRangeDynCast
TRangeDynCast is an adapter class that allows the typed iteration through a TCollection.
Definition TCollection.h:358

gStyle
R__EXTERN TStyle * gStyle
Definition TStyle.h:442

gPad
#define gPad
Definition TVirtualPad.h:308

ROOT::Detail::TRangeCast
Definition TCollection.h:311

TCanvas
The Canvas class.
Definition TCanvas.h:23

TF1::SetParameters
virtual void SetParameters(const Double_t *params)
Definition TF1.h:685

TF2
A 2-Dim function with parameters.
Definition TF2.h:29

TH2F
2-D histogram with a float per channel (see TH1 documentation)
Definition TH2.h:307

TPaveLabel
A Pave (see TPave) with a text centered in the Pave.
Definition TPaveLabel.h:20

TStyle::SetOptStat
void SetOptStat(Int_t stat=1)
The type of information printed in the histogram statistics box can be selected via the parameter mod...
Definition TStyle.cxx:1642

TStyle::SetFrameFillColor
void SetFrameFillColor(Color_t color=1)
Definition TStyle.h:376

TStyle::SetCanvasColor
void SetCanvasColor(Color_t color=19)
Definition TStyle.h:347

lego
void lego()
Definition lego.C:31