compile.C: This macro produces the flowchart of TFormula::Compile

From $ROOTSYS/tutorials/graphics/compile.C

{
   //
   // This macro produces the flowchart of TFormula::Compile
   //Author: Rene Brun
   
   gROOT->Reset();
   c1 = new TCanvas("c1");
   c1->Range(0,0,1,1);
   TPaveLabel ptc(0.02,0.42,0.2,0.58,"Compile");
   ptc.SetTextSize(0.40);
   ptc.SetFillColor(32);
   ptc.Draw();
   TPaveText psub(0.28,0.4,0.65,0.6);
   psub.Draw();
   TText *t2=psub.AddText("Substitute some operators");
   TText *t3=psub.AddText("to C++ style");
   TPaveLabel panal(0.73,0.42,0.98,0.58,"Analyze");
   panal.SetTextSize(0.40);
   panal.SetFillColor(42);
   panal.Draw();
   TArrow ar1(0.2,0.5,0.27,0.5,0.02,"|>");
   ar1.SetLineWidth(6);
   ar1.SetLineColor(4);
   ar1.Draw();
   TArrow ar2(0.65,0.5,0.72,0.5,0.02,"|>");
   ar2.SetLineWidth(6);
   ar2.SetLineColor(4);
   ar2.Draw();
}

compile.C:1

compile.C:2

compile.C:3

compile.C:4

compile.C:5

compile.C:6

compile.C:7

compile.C:8

compile.C:9

compile.C:10

compile.C:11

compile.C:12

compile.C:13

compile.C:14

compile.C:15

compile.C:16

compile.C:17

compile.C:18

compile.C:19

compile.C:20

compile.C:21

compile.C:22

compile.C:23

compile.C:24

compile.C:25

compile.C:26

compile.C:27

compile.C:28

compile.C:29

compile.C:30