ROOT_528-00b_version: tutorials/graphics/latex4.C Source File

00001 // Draw the Greek letters as a table and save the result as GIF, PS, PDF 
00002 // and SVG files. 
00003 // Lowercase Greek letters are obtained by adding a # to the name of the letter. 
00004 // For an uppercase Greek letter, just capitalize the first letter of the
00005 // command name. Some letter have two representations. The name of the
00006 // second one (the "variation") starts with "var".
00007 //Author: Rene Brun
00008 void latex4() {
00009    TCanvas *c1 = new TCanvas("greek","greek",600,700);
00010 
00011    TLatex l;
00012    l.SetTextSize(0.03);
00013 
00014    // Draw the columns titles
00015    l.SetTextAlign(22);
00016    l.DrawLatex(0.165, 0.95, "Lower case");
00017    l.DrawLatex(0.495, 0.95, "Upper case");
00018    l.DrawLatex(0.825, 0.95, "Variations");
00019 
00020    // Draw the lower case letters
00021    l.SetTextAlign(12);
00022    float y, x1, x2;
00023    y = 0.90; x1 = 0.07; x2 = x1+0.2;
00024                  l.DrawLatex(x1, y, "alpha : ")   ; l.DrawLatex(x2, y, "#alpha");
00025    y -= 0.0375 ; l.DrawLatex(x1, y, "beta : ")    ; l.DrawLatex(x2, y, "#beta");
00026    y -= 0.0375 ; l.DrawLatex(x1, y, "gamma : ")   ; l.DrawLatex(x2, y, "#gamma");
00027    y -= 0.0375 ; l.DrawLatex(x1, y, "delta : ")   ; l.DrawLatex(x2, y, "#delta");
00028    y -= 0.0375 ; l.DrawLatex(x1, y, "epsilon : ") ; l.DrawLatex(x2, y, "#epsilon");
00029    y -= 0.0375 ; l.DrawLatex(x1, y, "zeta : ")    ; l.DrawLatex(x2, y, "#zeta");
00030    y -= 0.0375 ; l.DrawLatex(x1, y, "eta : ")     ; l.DrawLatex(x2, y, "#eta");
00031    y -= 0.0375 ; l.DrawLatex(x1, y, "theta : ")   ; l.DrawLatex(x2, y, "#theta");
00032    y -= 0.0375 ; l.DrawLatex(x1, y, "iota : ")    ; l.DrawLatex(x2, y, "#iota");
00033    y -= 0.0375 ; l.DrawLatex(x1, y, "kappa : ")   ; l.DrawLatex(x2, y, "#kappa");
00034    y -= 0.0375 ; l.DrawLatex(x1, y, "lambda : ")  ; l.DrawLatex(x2, y, "#lambda");
00035    y -= 0.0375 ; l.DrawLatex(x1, y, "mu : ")      ; l.DrawLatex(x2, y, "#mu");
00036    y -= 0.0375 ; l.DrawLatex(x1, y, "nu : ")      ; l.DrawLatex(x2, y, "#nu");
00037    y -= 0.0375 ; l.DrawLatex(x1, y, "xi : ")      ; l.DrawLatex(x2, y, "#xi");
00038    y -= 0.0375 ; l.DrawLatex(x1, y, "omicron : ") ; l.DrawLatex(x2, y, "#omicron");
00039    y -= 0.0375 ; l.DrawLatex(x1, y, "pi : ")      ; l.DrawLatex(x2, y, "#pi");
00040    y -= 0.0375 ; l.DrawLatex(x1, y, "rho : ")     ; l.DrawLatex(x2, y, "#rho");
00041    y -= 0.0375 ; l.DrawLatex(x1, y, "sigma : ")   ; l.DrawLatex(x2, y, "#sigma");
00042    y -= 0.0375 ; l.DrawLatex(x1, y, "tau : ")     ; l.DrawLatex(x2, y, "#tau");
00043    y -= 0.0375 ; l.DrawLatex(x1, y, "upsilon : ") ; l.DrawLatex(x2, y, "#upsilon");
00044    y -= 0.0375 ; l.DrawLatex(x1, y, "phi : ")     ; l.DrawLatex(x2, y, "#phi");
00045    y -= 0.0375 ; l.DrawLatex(x1, y, "chi : ")     ; l.DrawLatex(x2, y, "#chi");
00046    y -= 0.0375 ; l.DrawLatex(x1, y, "psi : ")     ; l.DrawLatex(x2, y, "#psi");
00047    y -= 0.0375 ; l.DrawLatex(x1, y, "omega : ")   ; l.DrawLatex(x2, y, "#omega");
00048 
00049    // Draw the upper case letters
00050    y = 0.90; x1 = 0.40; x2 = x1+0.2;
00051                  l.DrawLatex(x1, y, "Alpha : ")   ; l.DrawLatex(x2, y, "#Alpha");
00052    y -= 0.0375 ; l.DrawLatex(x1, y, "Beta : ")    ; l.DrawLatex(x2, y, "#Beta");
00053    y -= 0.0375 ; l.DrawLatex(x1, y, "Gamma : ")   ; l.DrawLatex(x2, y, "#Gamma");
00054    y -= 0.0375 ; l.DrawLatex(x1, y, "Delta : ")   ; l.DrawLatex(x2, y, "#Delta");
00055    y -= 0.0375 ; l.DrawLatex(x1, y, "Epsilon : ") ; l.DrawLatex(x2, y, "#Epsilon");
00056    y -= 0.0375 ; l.DrawLatex(x1, y, "Zeta : ")    ; l.DrawLatex(x2, y, "#Zeta");
00057    y -= 0.0375 ; l.DrawLatex(x1, y, "Eta : ")     ; l.DrawLatex(x2, y, "#Eta");
00058    y -= 0.0375 ; l.DrawLatex(x1, y, "Theta : ")   ; l.DrawLatex(x2, y, "#Theta");
00059    y -= 0.0375 ; l.DrawLatex(x1, y, "Iota : ")    ; l.DrawLatex(x2, y, "#Iota");
00060    y -= 0.0375 ; l.DrawLatex(x1, y, "Kappa : ")   ; l.DrawLatex(x2, y, "#Kappa");
00061    y -= 0.0375 ; l.DrawLatex(x1, y, "Lambda : ")  ; l.DrawLatex(x2, y, "#Lambda");
00062    y -= 0.0375 ; l.DrawLatex(x1, y, "Mu : ")      ; l.DrawLatex(x2, y, "#Mu");
00063    y -= 0.0375 ; l.DrawLatex(x1, y, "Nu : ")      ; l.DrawLatex(x2, y, "#Nu");
00064    y -= 0.0375 ; l.DrawLatex(x1, y, "Xi : ")      ; l.DrawLatex(x2, y, "#Xi");
00065    y -= 0.0375 ; l.DrawLatex(x1, y, "Omicron : ") ; l.DrawLatex(x2, y, "#Omicron");
00066    y -= 0.0375 ; l.DrawLatex(x1, y, "Pi : ")      ; l.DrawLatex(x2, y, "#Pi");
00067    y -= 0.0375 ; l.DrawLatex(x1, y, "Rho : ")     ; l.DrawLatex(x2, y, "#Rho");
00068    y -= 0.0375 ; l.DrawLatex(x1, y, "Sigma : ")   ; l.DrawLatex(x2, y, "#Sigma");
00069    y -= 0.0375 ; l.DrawLatex(x1, y, "Tau : ")     ; l.DrawLatex(x2, y, "#Tau");
00070    y -= 0.0375 ; l.DrawLatex(x1, y, "Upsilon : ") ; l.DrawLatex(x2, y, "#Upsilon");
00071    y -= 0.0375 ; l.DrawLatex(x1, y, "Phi : ")     ; l.DrawLatex(x2, y, "#Phi");
00072    y -= 0.0375 ; l.DrawLatex(x1, y, "Chi : ")     ; l.DrawLatex(x2, y, "#Chi");
00073    y -= 0.0375 ; l.DrawLatex(x1, y, "Psi : ")     ; l.DrawLatex(x2, y, "#Psi");
00074    y -= 0.0375 ; l.DrawLatex(x1, y, "Omega : ")   ; l.DrawLatex(x2, y, "#Omega");
00075 
00076    // Draw the variations
00077    x1 = 0.73; x2 = x1+0.2;
00078    y = 0.7500 ; l.DrawLatex(x1, y, "varepsilon : ") ; l.DrawLatex(x2, y, "#varepsilon");
00079    y = 0.6375 ; l.DrawLatex(x1, y, "vartheta : ")   ; l.DrawLatex(x2, y, "#vartheta");
00080    y = 0.2625 ; l.DrawLatex(x1, y, "varsigma : ")   ; l.DrawLatex(x2, y, "#varsigma");
00081    y = 0.1875 ; l.DrawLatex(x1, y, "varUpsilon : ") ; l.DrawLatex(x2, y, "#varUpsilon");
00082    y = 0.1500 ; l.DrawLatex(x1, y, "varphi : ")     ; l.DrawLatex(x2, y, "#varphi");
00083    y = 0.0375 ; l.DrawLatex(x1, y, "varomega : ")   ; l.DrawLatex(x2, y, "#varomega");
00084 
00085    // Save the picture in various formats
00086    c1->Print("greek.ps");
00087    c1->Print("greek.gif");
00088    c1->Print("greek.pdf");
00089    c1->Print("greek.svg");
00090 }