gaxis.C: Simple example illustrating how to draw TGaxis objects in various formats.

{
//Simple example illustrating how to draw TGaxis objects in various formats.	
//To see the output of this macro, click begin_html <a href="gif/gaxis.gif" >here</a> end_html
//Author: Rene Brun

  gROOT.Reset();

  c1 = new TCanvas("c1","Examples of Gaxis",10,10,700,500);

  c1->Range(-10,-1,10,1);

  TGaxis *axis1 = new TGaxis(-4.5,-0.2,5.5,-0.2,-6,8,510,"");
  axis1->SetName("axis1");
  axis1->Draw();

  TGaxis *axis2 = new TGaxis(-4.5,0.2,5.5,0.2,0.001,10000,510,"G");
  axis2->SetName("axis2");
  axis2->Draw();

  TGaxis *axis3 = new TGaxis(-9,-0.8,-9,0.8,-8,8,50510,"");
  axis3->SetName("axis3");
  axis3->SetTitle("axis3");
  axis3->SetTitleOffset(0.5);
  axis3->Draw();

  TGaxis *axis4 = new TGaxis(-7,-0.8,-7,0.8,1,10000,50510,"G");
  axis4->SetName("axis4");
  axis4->SetTitle("axis4");
  axis4->Draw();
   
  TGaxis *axis5 = new TGaxis(-4.5,-0.6,5.5,-0.6,1.2,1.32,80506,"-+");
  axis5->SetName("axis5");
  axis5->SetLabelSize(0.03);
  axis5->SetTextFont(72);

  axis5->Draw();

  TGaxis *axis6 = new TGaxis(-4.5,0.5,5.5,0.5,100,900,50510,"-");
  axis6->SetName("axis6");
  axis6->Draw();
  TGaxis *axis6a = new TGaxis(-5.5,0.85,5.5,0.85,0,4.3e-6,510,"");
  axis6a->SetName("axis6a");
  axis6a->Draw();

  TGaxis *axis7 = new TGaxis(8,-0.8,8,0.8,0,9000,50510,"+L");
  axis7->SetName("axis7");
  axis7->Draw();

  //one can make axis going top->bottom. However because of a long standing
  //problem, the two x values should not be equal
  TGaxis *axis8 = new TGaxis(6.5,0.8,6.499,-0.8,0,90,50510,"-");
  axis8->SetName("axis8");
  axis8->Draw();
}