drawing a grid

From: Roger Mason <rmason_at_esd.mun.ca>
Date: Sun, 24 May 2009 07:29:25 -0230


Hello,

I'm trying to draw a grid on a canvas using SetGrid():

{

  TCanvas* canv = new TCanvas("canv", "utm", 1024, 768);   canv->Range(0,0,1,1);
  // gPad->SetGrid(0.1,0.1);

  Double_t x[] = {0,1};
  Double_t y[] = {0,1};

  TGraph* g = new TGraph(2,x,y);
  g->Draw("AP");

  TMarker* m = new TMarker(0.5,0.5,8);
  m->Draw();

  canv->SetGrid(0.1,0.1);
  canv->Update();

}
// ROOT 5.20/00 (trunk_at_24524, May 17 2009, 10:14:00 on linux)

Everything is drawn except the grid. Can someone please explain what I'm doing wrong?

Thanks,
Roger Received on Sun May 24 2009 - 12:33:40 CEST

This archive was generated by hypermail 2.2.0 : Sun May 24 2009 - 17:50:01 CEST