Hello,
My program has three histograms on three pads on a canvas using ROOT
v.2.20. I'd like to have a zoom together with them when one of the pads
has a zoom after Left button of the mouse is clicked on one of the line
end points, moved and released. So I tried function RangeAxis in order to
pick up the data of Xmin, Xmax, Ymin, Ymax and put it to others pads. My
codes to try are simple as:
gROOT->Reset();
c1 = new TCanvas("c1","A Simple Graph Example",200,10,700,500);
pad1 = new TPad("pad1","Window N1",0.02,0.02,0.98,0.96,18);
pad1->Draw();
pad1->cd();
const Int_t n = 20;
Float_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);
}
gr = new TGraph(n,x,y);
gr->Draw("ACP");
gPad->RangeAxis(0,0.1,0.3,0.9); //or gPad->RangeAxis(1,0.44,1.5,12);
gPad->Modified(kTRUE); //or gPad->Modified();
c1->Update();
The codes seems to be ok but the histogram was same as without function
RangeAxis.
Would you please tell me what is happened here.
Thanks so lot.
Best,
ZYZ
------
Yongzhao Zhou, KLOE, LNF, INFN, Italy
Tel:39-06-94032696 Fax:39-06-94032427
This archive was generated by hypermail 2b29 : Tue Jan 02 2001 - 11:50:19 MET