Hi Zaldy,
You can use TPad::DrawFrame as illustrated in
$ROOTSYS/tutorials/gerrors2.C
or set the max/min via TGraph::SetMaximum/SetMinimum as shown
in the example below
{
c1 = new TCanvas("c1","A Simple Graph Example",200,10,700,500);
c1->SetFillColor(42);
c1->SetGrid();
const Int_t n = 20;
Double_t x[n], y[n];
for (Int_t i=0;i<n;i++) {
x[i] = i*0.1;
y[i] = 10*sin(x[i]+0.2);
printf(" i %i %f %f \n",i,x[i],y[i]);
}
gr = new TGraph(n,x,y);
gr->SetMaximum(14);
gr->SetMinimum(-2);
gr->Draw("ACP");
}
I strongly encourage you to go to the list of tutorials and read
the Root Users Guide.
Rene Brun
On Wed,
9 Jul
2003, zaldy wrote:
>
> Dear ROOT Users,
>
> I would like to know how to set and then fix the values of the Maximum as
> well as Minimum of the Axes.
>
> In plotting the points via TGraph, there is a method of TGraph, Draw("A"),
> where the axes are automatically drawn. As a result the upper and lower
> bound of the axes depends on the value of the plotted points; not fix.
>
> What if one wansts to fix a predefined maximum values of the axes, and
> allow the points to find their places via their coordinate values, how do
> we implement this?
>
> Thank you.
>
>
> --------------------------------------------------------
> Zaldy A. Nawang
> PS Users Room 2
> Yon Gokan,
> E362, Neutrino Group,
> IPNS, KEK,
> Japan
>
> e-mail: zaldy@neutrino.kek.jp
> Tel. No. : (81) 029864 - 5387
> --------------------------------------------------------
>
This archive was generated by hypermail 2b29 : Thu Jan 01 2004 - 17:50:13 MET