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Text File  |  1991-06-14  |  15KB  |  357 lines
  1. %*****************************************************************************
  2. %        Copyright (c) 1989 by N. N. Billawala
  3. %*****************************************************************************
  4.  
  5.  
  6. % greeku.mf  uppercase Greek characters not coinciding with uppercase roman
  7.  
  8. % 11 characters; iff OK "g": for testing
  9.  
  10.  
  11. iff OK "g":  "The uppercase Greek Gamma"; 
  12.   beginchar(0,E_w*width#+b_mono#,cap#,0);
  13.  
  14.   top lft z11l=(0,h)//;       multpos(11,14)(stem.uc,0);
  15.   bot lft z14l=(0,0);        
  16.   onaline(11l,14l)(12l,13l);  y13l=y13r=cap_bracket_h;
  17.   onaline(11r,14r)(1,13r);    y12l=max(h-cap_bracket_h,y13l);
  18.   top y2r=h; 
  19.   top rt z3=(w,h)//;
  20.   bot y1=bot y2l=top y2r-max(1,.95thin_stem.uc);
  21.   z0=z1-(0*stem.uc,0);
  22.   good_x_for(2l)(z1,z3,.6)a;  good_x_for(2r)(z1,z3,.6)b;                
  23.  
  24.   p1=(leftserif(z11,z14,z12l,z11r,.5hs)--
  25.       fullserif(z14,z11,z13l,z13r,.5hs,.75hs)
  26.         if softpath:--z1)softjoin(z1...
  27.          else:...(z0-(0,eps)){left}--z0{right}... fi
  28.       arm.tr(z3,z2l,z2r,.5as,.75tip_thickness,90+arm_angle))--cycle;
  29.  
  30.   showpoints(0,1,2,3,11,12,13,14);
  31. adjust(v_A*fitbasis.uc#+m_f*b_mfit#,v_I*fitbasis.uc#+m_ff*b_mfit#); 
  32. show_character; endchar;
  33.  
  34.  
  35.  
  36. iff OK "g":  "The uppercase Greek Delta";
  37.   beginchar(1,O_w*width#+e_mono#,cap#,0);
  38.   min_limit(join_radius)(.5apex.uc);
  39.  
  40.   bot lft z21l=(0,0);         multpos(21,22)(apex.uc,90-apex_angle);
  41.   bot rt z22l=(w,0);
  42.   top z23=(.5[x21,x22],h)//;  pos23(apex.uc,0-apex_angle);
  43.   z1l=z23l; z2l=z21r; z3l=z21l; z4l=z22l; z5r=z22r; z6r=z23r;
  44.   multpos(1,2)(thin_stem.uc,constant_angle(z23l,z21r,0));
  45.   multpos(3,4)(major_curve.uc,90);
  46.   multpos(5,6)(stem.uc,constant_angle(z23r,z22r,0));
  47.   onaline(1r,2r)(41,43,51,52);  
  48.   onaline(3r,4r)(41,42,53,54);     
  49.   onaline(5l,6l)(42,43,55,56);
  50.   y51=y56=max(notch_pos,.5)[y43,y41]; 
  51.   y52=y55=max(notch_pos,.5)[y41,y43]; 
  52.   x53=max(notch_pos,.5)[x41,x42]; x54=max(notch_pos,.5)[x42,x41];
  53.  
  54.   p1=(.5[z23l,z21r] soften(z21r,z21l,z22l,z22r,z23r,z23l) .5[z23l,z21r])--cycle;
  55.   p1'=leftnotch((z52--z41--z53),angle(z21-z41),notch_length.uc)--
  56.       rightnotch((z54--z42--z55),angle(z22-z42),notch_length.uc)--
  57.       upnotch((z56--z43--z51),angle(z23-z43),notch_length.uc)--cycle;
  58.  
  59.   showpoints(1,2,3,4,5,6,21,22,23,41,42,43,51,52,53,54,55,56);
  60. adjust(v_E*fitbasis.uc#+m_a*e_mfit#,v_D*fitbasis.uc#+m_a*e_mfit#); 
  61. show_character; endchar;
  62.  
  63.  
  64.  
  65. iff OK "g":  "The uppercase Greek Theta";
  66.   beginchar(2,O_w*width#+d_mono#,cap#,0);
  67.      
  68.   top z1=(h_stress*w,h+ov_t.uc)//;                                   % circle 
  69.   lft z2=(0,(1-v_stress)*h)//;
  70.   bot z3=((1-h_stress)*w,-ov_b.uc)//;  
  71.   rt z4=(w,v_stress*h)//;      
  72.  
  73.   z10=(.5w,round(.52h))//;  pos10(round max(1,.75stem.uc),0);        % bar
  74.   z13=(0,.35*(abs(x4-x2)-2bowlstem.uc));
  75.   top z11=(z10+z13);
  76.   bot z12=(z10-z13);
  77.   ref1=fullserif(z11,z10,z10l,z10r,.2hs,.2hs)--
  78.        fullserif(z12,z10,z10l,z10r,.2hs,.2hs)--cycle;
  79.  
  80.   p1=ref1 rotatedaround(z10,90);                                     % bar
  81.   circular_shape(y1,y3,x2,x4,minor_curve.uc,bowlstem.uc);            % circle
  82.  
  83.  showpoints(1,2,3,4,10,11,12,13);
  84. adjust(v_C*fitbasis.uc#+m_a*d_mfit#,v_C*fitbasis.uc#+m_a*d_mfit#); 
  85. show_character; endchar;
  86.  
  87. % Only y1/y3 and x2/x4 values actually used; the points are put in for proofs
  88.  
  89.  
  90. iff OK "g":  "The uppercase Greek Lambda";
  91.   beginchar(3,A_w*width#+e_mono#,cap#,0);
  92.  
  93.   min_limit(join_radius)(.5apex.uc);
  94.   top z20=(.5w,h+ov_apex.uc)//; pos20(apex.uc,0-apex_angle);
  95.   bot y3=0; z3l=whatever[z20l,(0,0)];
  96.   bot y6=0; z6r=whatever[z20r,(w,0)];
  97.   z20l=z1l; z20r=z4r;
  98.   multpos(1,3)(thin_stem.uc,constant_angle(z20l,(0,0),0));
  99.   multpos(4,6)(stem.uc,constant_angle(z20r,(w,0),0));
  100.  
  101.   onaline(1l,3l)(2l);          
  102.   onaline(1r,3r)(2r,40);
  103.   onaline(4l,6l)(5l,40);  y2l=y2r=y5l=y5r=min(cap_bracket_h,y40); 
  104.   onaline(4r,6r)(5r);     
  105.   ref1=notch_pos[z40,z5l]--z40--notch_pos[z40,z2r];
  106.  
  107.   p1 =(fullserif.l(z3,z1,z2l,z2r,.5hs,.5hs)--
  108.        upnotch.r(ref1,angle(z20-z40),notch_length.uc)--
  109.        fullserif.r(z6,z4,z5l,z5r,.5hs,.5hs) soften(z20r,z20l) z2l)--cycle;
  110.  
  111.   showpoints(1,2,3,4,5,6,20,40);
  112. adjust(v_E*fitbasis.uc#+m_a*e_mfit#,v_D*fitbasis.uc#+m_a*e_mfit#); 
  113. show_character; endchar;
  114.  
  115.  
  116. iff OK "g":  "The uppercase Greek Xi"; 
  117.   beginchar(4,R_w*width#+d_mono#,cap#,0);
  118.  
  119.   top lft z1=(.02w,h)//;                                          % top arm
  120.   top rt z4=(.98w,h)//; 
  121.   onaline(1,4)(2r,3r); x2r=.25[x1,x4]; x3r=.75[x1,x4];
  122.   bot lft z5=(0,0);                                               % bottom arm
  123.   bot rt z8=(w,0); 
  124.   onaline(5,8)(6l,7l); x6l=.25[x5,x8]; x7l=.75[x5,x8];
  125.   multpos(2,3,6,7)(max(1,.9stem.uc),90-oblique);  
  126.  
  127.   z10=(.5w,round(.52h))//;  pos10(max(1,.9stem.uc),0);            % middle arm
  128.   z11=z10+(0,.35*abs(x4-x1)); 
  129.   z12=z10-(0,.35*abs(x4-x1));
  130.   ref1=fullserif(z11,z10,z10l,z10r,.2hs,.2hs)--
  131.        fullserif(z12,z10,z10l,z10r,.2hs,.2hs)--cycle;
  132.  
  133.   p1=arm.tl(z1,z2l,z2r,.5as,.75tip_thickness,90-arm_angle)--      % top arm
  134.      arm.tr(z4,z3l,z3r,.5as,.75tip_thickness,90+arm_angle)--cycle;
  135.   p2=arm.bl(z5,z6r,z6l,.5as,.75tip_thickness,90+arm_angle)--      % bottom arm
  136.      arm.br(z8,z7r,z7l,.5as,.75tip_thickness,90-arm_angle)--cycle;
  137.   p3=ref1 rotatedaround(z10,90);                                  % middle arm
  138.  
  139.  showpoints(1,2,3,4,5,6,7,8,10,11,12);
  140. adjust(v_F*fitbasis.uc#+m_a*b_mfit#,v_F*fitbasis.uc#+m_a*b_mfit#); 
  141. show_character; endchar;
  142.  
  143.  
  144. iff OK "g":  "The uppercase Greek Pi"; 
  145.   beginchar(5,R_w*width#+b_mono#,cap#,0);
  146.  
  147.   top lft z1l=(0,h)//;        multpos(1,4,11,14)(stem.uc,0);
  148.   bot lft z4l=(0,0);         
  149.   top rt z11r=(w,h)//;
  150.   bot rt z14r=(w,0);
  151.   onaline(1l,4l)(2l,3l);      y3l=y3r=y13l=y13r=cap_bracket_h;   
  152.   onaline(1r,4r)(2r,3r); 
  153.   onaline(11r,14r)(12r,13r);  y2r=y12l=h-max(1,.7thin_stem.uc);
  154.   onaline(11l,14l)(12l,13l);  y2l=y12r=max(h-cap_bracket_h,y3l);
  155.  
  156.   p1=(fullserif(z4,z1,z3l,z3r,.5hs,.75hs)--z2r 
  157.         if softpath:)softjoin(z2r--z12l)softjoin( else:-- fi z12l--
  158.       fullserif(z14,z11,z13l,z13r,.5hs,.75hs)--
  159.       rightserif(z11,z14,z12l,z12r,.625hs)--
  160.       leftserif(z1,z4,z2l,z2r,.625hs))--cycle;
  161.  
  162.   showpoints(1,2,3,4,11,12,13,14);
  163. adjust(v_A*fitbasis.uc#+m_a*b_mfit#,v_A*fitbasis.uc#+m_a*b_mfit#); 
  164. show_character; endchar;
  165.  
  166.  
  167.  
  168.  
  169. iff OK "g":  "The uppercase Greek Sigma"; 
  170.   beginchar(6,R_w*width#+b_mono#,cap#,0);
  171.  
  172.   save_bool(nonotch):=if(cap<40):true else:false fi;      % if real low res
  173.   min_limit(join_radius)(.5apex.uc);
  174.   bot lft z1l=(0,0);      multpos(1,3)(max(1,.75stem.uc),90);
  175.   bot rt z3l=(w,0);
  176.   top lft z10r=(0,h)//;   multpos(10,12)(max(1,.95thin_stem.uc),90);
  177.   top rt z12r=(.95w,h)//;
  178.   lft z21l=(0,0);         multpos(21,23)(apex.uc,90-apex_angle);
  179.   lft z23r=(0,h)//;       pos22(max(1,.5apex.uc),90-apex_angle);
  180.   z22=(.75[x1l,x3l],.52h)//;
  181.  
  182.   z4l=z21r; z6r=z22l; z9r=z22r; z7l=z23l; 
  183.   multpos(4,6)(thin_stem.uc,constant_angle(z22l,z21r,0));     
  184.   multpos(7,9)(stem.uc,constant_angle(z23l,z22r,0));       
  185.  
  186.   onaline(1r,3r)(2r,41);    onaline(1l,3l)(2l);     x2l=.5[x1l,x3l];  
  187.   onaline(4l,6l)(5l,42);    onaline(4r,6r)(5r,41); 
  188.   onaline(7l,9l)(8l,42);    onaline(7r,9r)(8r,43); 
  189.   onaline(10l,12l)(11l,43); onaline(10r,12r)(11r); 
  190.   y5l=notch_pos[y42,y4l]; y5r=notch_pos[y41,y22l];
  191.   y8l=notch_pos[y42,y7l]; y8r=notch_pos[y43,y22r];
  192.   good_x_for(2r)(z41,z3r,.5)a;                     
  193.   x11r=.5[x10r,x12r];  good_x_for(11l)(z43,z12r,.5)b; 
  194.   ref1=z5r--z41--z2r; ref2=z11l--z43--z8r; ref3=z5l--z42--z8l;
  195.  
  196.   p1=(arm.br(z3l,z2r,z2l,.5as,.75tip_thickness,90-arm_angle)soft--
  197.      leftnotch.r(ref1,angle(z21-z41),notch_length.uc)etchdown
  198.      --z22l if softpath:)softjoin(z22l--z22r)--( else:-- fi z22r--     
  199.      leftnotch.r(ref2,angle(z23-z43),notch_length.uc)etchdown
  200.      --arm.tr(z12r,z11l,z11r,.4as,.75tip_thickness,90+arm_angle)soft--
  201.      z23r if softpath:)softjoin(z23r--z23l)--( else:-- fi z23l--
  202.      rightnotch.r(ref3,angle(z22-z42),notch_length.uc)--
  203.      z21r if softpath:)softjoin(z21r--z21l)--( else:-- fi z21l--z2l)--cycle;
  204.  
  205.   showpoints(1,2,3,4,5,6,7,8,9,10,11,12,21,22,23,41,42,43);
  206. adjust(v_G*fitbasis.uc#+m_b*b_mfit#,v_H*fitbasis.uc#+m_bb*b_mfit#); 
  207. show_character;endchar;
  208.  
  209. iff OK "g":  "The uppercase Greek Upsilon"; 
  210.   beginchar(7,O_w*width#+f_mono#,cap#,0);
  211.  
  212.   save_pairs(dir_limit);
  213.   bot z40=(.5w,0); pos40(stem.uc,0);
  214.   bot y14=0; lft x14l=round x40l; multpos(11,14)(stem.uc,0);
  215.   w:=2*x14l+stem.uc; 
  216.   top z11=(x14,.65h)//;
  217.   onaline(11l,14l)(13l);  y13l=y13r=min(cap_bracket_h,y11);
  218.   onaline(11r,14r)(13r); 
  219.                          
  220.   z1r=(0,.85h)//;  pos1(max(1,.5major_curve.uc),90-oblique);
  221.   z4r=(w,.85h)//;  pos4(max(1,.5major_curve.uc),90-oblique);
  222.   good_x_for(2r)(z1r,z11l,.5)a; top y2r=h; 
  223.   good_x_for(2l)(z1l,z11l,.5)c; y2l=y5l=y2r-major_curve.uc;
  224.   good_x_for(5r)(z11r,z4r,.5)b; top y5r=h; 
  225.   good_x_for(5l)(z11r,z4l,.5)d;  
  226.  
  227.   dir_limit1=if abs(y5l-y4l)>abs(x5l-x4l):downward else:(0,0) fi;
  228.   dir_limit2=if abs(y5r-y4r)>abs(x5r-x4r):downward else:(0,0) fi;
  229.  
  230.   p1=fullserif(z14,z11,z13l,z13r,.75hs,.75hs)...z11r{upward}...z5l{right}...
  231.      {dir_limit1}z4l--z4r{-dir_limit2}...z5r{left}...{downward}z11+(eps,0)--
  232.      z11{upward}...z2r{left}...{dir_limit2}z1r--
  233.      z1l{-dir_limit1}...z2l{right}...z11l{downward}...cycle;
  234.  
  235.   showpoints(1,2,4,5,11,12,13,14,40);
  236. adjust(v_H*fitbasis.uc#+m_a*f_mfit#,v_H*fitbasis.uc#+m_a*f_mfit#); 
  237. show_character; endchar;
  238.  
  239.  
  240.  
  241. iff OK "g":  "The uppercase Greek Phi"; 
  242.   beginchar(8,O_w*width#+e_mono#,cap#,0); 
  243.  
  244.   save_num(stem_thickness)=round(if narrow_condition:
  245.     narrow_amt[thin_stem.uc,stem.uc] else:max(1,.8stem.uc) fi);
  246.   bot z40=(.5w,0); multpos(11,14,40)(stem_thickness,0);                % stem
  247.   z14l=round z40l; 
  248.   w:=2*x14l+stem_thickness; 
  249.   top z11=(x14,h)//;
  250.   onaline(11l,14l)(13l,12l,1l,1r,3l,3r); 
  251.   onaline(11r,14r)(13r,12r,4l,4r,6l,6r); 
  252.   y13l=y13r=.5cap_bracket_h;
  253.   y12l=y12r=max(h-.5cap_bracket_h,y13l);
  254.   top y1r=.85[y14+serif_thickness,y11-serif_thickness];
  255.   y6r=y1r; bot y1l=top y1r-max(1,.9minor_curve.uc); y6l=y1l;
  256.   bot y3r=.15[y14+serif_thickness,y11-serif_thickness];
  257.   y4r=y3r; top y3l=bot y3r+max(1,.9minor_curve.uc); y4l=y3l;
  258.   lft z2r=(0,(1-v_stress)*h)//; 
  259.   pos2(bowlstem.uc,180);
  260.   rt z5r=(w,v_stress*h)//; 
  261.   pos5(bowlstem.uc,0);
  262.  
  263.   p1 =fullserif(z11,z14,z12l,z12r,.75hs,.75hs)--                       % stem
  264.       fullserif(z14,z11,z13l,z13r,.75hs,.75hs)--cycle;
  265.   p2 =z1r{left} o_t z2r{downward} o_t z3r{right} o_t z4r{right} o_t 
  266.       z5r{upward} o_t z6r{left} o_t cycle;
  267.   p1'=z1l{left} i_t z2l{downward} i_t z3l{right} i_t z4l{right} i_t 
  268.       z5l{upward} i_t z6l{left} i_t cycle;
  269.  
  270.   showpoints(1,2,3,4,5,6,11,12,13,14);
  271. adjust(v_G*fitbasis.uc#+m_a*b_mfit#,v_G*fitbasis.uc#+m_a*b_mfit#); 
  272. show_character; endchar;
  273.  
  274. % Only y1/y3 and x2/x4 values actually used; the points are put in for proofs
  275.  
  276.  
  277. iff OK "g":  "The uppercase Greek Psi"; 
  278.   beginchar(9,O_w*width#+f_mono#,cap#,0);
  279.  
  280.   save_num(stem_thickness)=if narrow_condition:
  281.     narrow_amt[thin_stem.uc,stem.uc] else:max(1,.8stem.uc) fi; 
  282.   bot z40=(.5w,0); multpos(11,14,40)(stem_thickness,0);                % stem
  283.   z14l=round z40l; 
  284.   w:=2*x14l+stem_thickness; 
  285.   top z11=(x14,h)//;
  286.   save_num(ht)=round(y11-y14-serif_thickness);   % length of stem between serifs
  287.   onaline(11l,14l)(13l,12l);  y13l=y13r=cap_bracket_h;
  288.   onaline(11r,14r)(13r,12r);  y12l=y12r=max(h-cap_bracket_h,y13l);
  289.   onaline(11,14)(3l,3r);
  290.                                                                        % lute
  291.   lft z2l=(.05w,.5ht)//;
  292.   multpos(2,4)(if narrow_condition:narrow_amt else:.8 fi
  293.                   [thin_stem.uc,bowlstem.uc],0);
  294.   rt z4r=(.95w,y2l)//;  
  295.   multpos(0,1,5,6)(if narrow_condition:narrow_amt else:.7fi
  296.                       [thin_stem.uc,bowlstem.uc],0);
  297.   rt z0r=(abs(x2r-x2l),.85ht)//; 
  298.   lft z6l=(w-abs(x2r-x2l),y0l)//;  
  299.   z1r=.75[z2r,z0r-(0,tip_thickness)];     
  300.   z5l=.75[z4l,z6l-(0,tip_thickness)];
  301.   bot y3r=serif_thickness+.2ht;
  302.   top y3l=bot y3r+thin_stem.uc;  
  303.  
  304.   p1=terminalserif.l(z0,z1,z1l,z1r,.5ts,0)soft...                      % lute
  305.      z2l o_t z3r{right} o_t z4r...
  306.      terminalserif.r(z6,z5,z5l,z5r,.5ts,0)soft...
  307.      z4l i_t z3l{left} i_t z2r...cycle;
  308.   p2=fullserif(z11,z14,z12l,z12r,.75hs,.75hs)--                        % stem
  309.      fullserif(z14,z11,z13l,z13r,.75hs,.75hs)--cycle;
  310.  
  311.   showpoints(0,1,2,3,4,5,6,11,12,13,14);
  312. adjust(v_G*fitbasis.uc#+m_a*f_mfit#,v_G*fitbasis.uc#+m_a*f_mfit#); 
  313. show_character; endchar;
  314.  
  315.  
  316.  
  317. iff OK "g":  "The uppercase Greek Omega";
  318.   beginchar(10,O_w*width#+d_mono#,cap#,0);
  319.   twotension:=3;
  320.   
  321.   bot lft z1=(0,0);                    bot rt z11=(w,0);
  322.   bot y2l=top y2r-max(1,.8stem.uc)=0;  bot y12l=top y12r-max(1,.8stem.uc)=0;
  323.    good_x_for(2l)(z1,z3l,.5)a;          good_x_for(12l)(z11,z13l,.5)b; 
  324.    good_x_for(2r)(z1,z4,.75)c;           good_x_for(12r)(z11,z14,.75)d;
  325.   bot z3l=(.4w,0);                     bot z13l=(.6w,0);
  326.   z3r=z3l+(0,min(2apex.uc,stem.uc))//; z13r=z13l+(0,min(2apex.uc,stem.uc))//;
  327.   z3=.5[z3l,z3r];                      z13=.5[z13l,z13r];   
  328.   lft z5r=(0,.55h)//;                  rt z15r=(w,.55h)//;
  329.   pos5(bowlstem.uc,180);               pos15(bowlstem.uc,0);
  330.   top y10r=bot y10l+minor_curve.uc=h+ov_t.uc; 
  331.   good_x_for(10r)(z5r,z15r,.53)e;     
  332.   good_x_for(10l)(z5l,z15l,.47)f;     
  333.   z10=.5[z10l,z10r]; save_num(amt)=.5*abs(y10r-y10l);    
  334.   x10r:=inlimit(x10r)(x10-amt,x10+amt);
  335.   x10l:=inlimit(x10l)(x10-amt,x10+amt); 
  336.  
  337.   ref1=z10r{left}...z5r{downward}..tension atleast 1 and twotension..z3;
  338.   ref2=z13..tension atleast twotension and 1..z15r{upward}...z10r{left};
  339.   ref3=(-1,y2r)//--(w,y2r)//;
  340.   ref4=z3r..tension atleast twotension and 1..z5l{upward} i_t z10l{right} i_t 
  341.        z15l{downward}..tension atleast 1 and twotension..z13r; 
  342.  
  343.   z4 =ref3 intersectionpoint ref1;      
  344.   z14=ref3 intersectionpoint ref2;      
  345.   (t1,t2)=ref3 intersectiontimes ref1;  
  346.   (t3,t4)=ref3 intersectiontimes ref2;  
  347.  
  348.   p1=(arm.bl(z1,z2r,z2l,.5as,.5tip_thickness,90+arm_angle+.5oblique)soft
  349.      soften(z3l,z3r) ref4 soften(z13r,z13l)
  350.      arm.br(z11,z12r,z12l,.5as,.5tip_thickness,90-arm_angle+.5oblique)soft--
  351.      z14--subpath(t4,infinity)of ref2--subpath(0,t2)of ref1--z4)--cycle;
  352.  
  353.   showpoints(1,2,3,4,5,10,11,12,13,14,15);
  354. adjust(.5num_fit_b#+m_a*d_mfit#,.5num_fit_b#+m_a*d_mfit#); 
  355. show_character; endchar;
  356.  
  357.