gaxis.C

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/// \file
/// \ingroup tutorial_graphics
/// \notebook
/// Simple example illustrating how to draw TGaxis objects in various formats.
///
/// \macro_image
/// \macro_code
///
/// \author Rene Brun
 
void gaxis(){
   TCanvas *c1 = new TCanvas("c1","Examples of TGaxis",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();
}