Printing out the coordinates

[jbmagallanes]

how do I print out the coordinates of each point in each plot of the graph?

 Int_t nop=100;
 Double_t xpt, ypt, del = 0.9975/nop;

 TGraph *av1 = new TGraph();

 for (Int_t j=0; j < nop; j++)
 {
  xpt = del*j + 0.0025*del;
  av1->SetPoint(j, xpt, 0.0);
 }

 for (Int_t i=0; i<nof; i++)
 {
  for (Int_t j=0; j < nop; j++)
  {
   av1->GetPoint(j, xpt, ypt);
   av1->SetPoint(j, xpt, ypt + fpf[i]->Eval(xpt)/(Double_t)nof);
  }
 }

 TGraph *av2 = new TGraph();

 for (Int_t j=0; j < nop; j++)
 {
  xpt = del*j + 0.0025*del;
  av2->SetPoint(j, xpt, 0.0);
 }

 for (Int_t i=0; i<nof; i++)
 {
  for (Int_t j=0; j < nop; j++)
  {
   av2->GetPoint(j, xpt, ypt);
   av2->SetPoint(j, xpt, ypt + ebu[i]->Eval(xpt)/(Double_t)nof);
  }
 }

 TGraph *av3 = new TGraph();

 for (Int_t j=0; j < nop; j++)
 {
  xpt = del*j + 0.0025*del;
  av3->SetPoint(j, xpt, 0.0);
 }

 for (Int_t i=0; i<nof; i++)
 {
  for (Int_t j=0; j < nop; j++)
  {
   av3->GetPoint(j, xpt, ypt);
   av3->SetPoint(j, xpt, ypt + ebd[i]->Eval(xpt)/(Double_t)nof);
  }
 }

thanks for your help.

[etejedor]

Hi,
Not sure if I understand, you are already using GetPoint to get the coordinates of the points.You want them to appear as text in the plot?

[jbmagallanes]

hi @etejedor, i want them to appear in the terminal as output text after running the program

[Wile_E_Coyote]

TGraph::Print

[jbmagallanes]

hi @Wile_E_Coyote, I inserted this in the code “TGraph::Print(av1);” but it said

error: call to non-static member function without an object argument TGraph::Print(av1);

[etejedor]

Hi,
You need to call it on an instance:
av1->Print()