00001 {
00002
00003
00004
00005
00006 gROOT->Reset();
00007 c1 = new TCanvas("c1");
00008 c1->Range(0,0,20,10);
00009 TPaveLabel pt1(0.2,4,3,6,"Eval");
00010 pt1.SetTextSize(0.5);
00011 pt1.SetFillColor(42);
00012 pt1.Draw();
00013 TPaveText pt2(4.5,4,7.8,6);
00014 pt2.Draw();
00015 TText *t1=pt2.AddText("Read Operator");
00016 TText *t2=pt2.AddText("number i");
00017 TPaveText pt3(9,3.5,17.5,6.5);
00018 TText *t4=pt3.AddText("Apply Operator to current stack values");
00019 TText *t5=pt3.AddText("Example: if operator +");
00020 TText *t6=pt3.AddText("value[i] += value[i-1]");
00021 t4.SetTextAlign(22);
00022 t5.SetTextAlign(22);
00023 t6.SetTextAlign(22);
00024 t5.SetTextColor(4);
00025 t6.SetTextColor(2);
00026 pt3.Draw();
00027 TPaveLabel pt4(4,0.5,12,2.5,"return result = value[i]");
00028 pt4.Draw();
00029 TArrow ar1(6,4,6,2.7,0.02,"|>");
00030 ar1.Draw();
00031 TText t7(6.56,2.7,"if i = number of stack elements");
00032 t7.SetTextSize(0.04);
00033 t7.Draw();
00034 ar1.DrawArrow(6,8,6,6.2,0.02,"|>");
00035 TLine l1(12,6.6,12,8);
00036 l1.Draw();
00037 l1.DrawLine(12,8,6,8);
00038 ar1.DrawArrow(3,5,4.4,5,0.02,"|>");
00039 ar1.DrawArrow(7.8,5,8.9,5,0.02,"|>");
00040 }
00041
