Hello Jayoung,
Do not use TCanvas::GetPadDivision but TPad::Divide, eg:
Root > c1 = new TCanvas("s1","Histogram",700,500);
Root > c1->Divide(2,2); // divide c1 in 2x2 subpads
Root > c1->cd(1); // to change current pad to top left pad
For more info, see TPad::Divide
Rene Brun
On Fri, 17 Dec 1999, Jayoung Wu wrote:
> Hi,
>
> I tried to divide canvas into 2 by 2. When I clike canvas window to get
> the canvas menu and clike divide in canvas menu(I mean using GUI) it
> works. However, when I type the command, "c1->GetPadDivision(2,2)" it
> does not work. When I execute the following commands, it draws histogram
> on original canvas c1 instead of on the 1st pad in canvas.
>
> root [0] TFile file("../ntuple.root");
> root [1] c1 = new TCanvas("s1","Histogram",700,500)
> (class TCanvas*)0x0
> root [2] c1->cd(1);
> root [3] c1->GetPadDivision(2,2);
> root [4] c1->cd(1);
> root [5] si_adc.Draw("a0","iny==8 && inx==10");
>
> Could you help me?
>
> ---
> Thanks,
> Jayoung
>
>
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