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Text File  |  1990-11-16  |  12KB  |  200 lines
  1. %*****************************************************************************
  2. %        Copyright (c) 1989 by N. N. Billawala
  3. %*****************************************************************************
  4.  
  5.  
  6. % pnssb10.mf   Pandora Sans Serif Bold 10 point
  7.  
  8. font_identifier:="PNSSB";
  9.  
  10. mode_setup;                             % general setup
  11. input pandor                            % general definitions used in pandora
  12.  
  13. designsize:= 10pt#;                     % intended "ideal" size for parameters
  14. width#:=     10pt#;                     % width of an em
  15. maxheight#:= 7.75pt#;                   % max height for delimiters,e.g., [,{,(
  16. ascender#:=  7.5pt#;                    % height of ascenders, e.g., on l,h,k
  17. cap#:=       7pt#;                      % height of uppercase, e.g., B,H,L
  18. xheight#:=   5pt#*1.02;                 % xheight of lowercase, e.g., x,n,o
  19. descender#:= 2pt#;                      % depth of descenders, e.g., on j,p,q
  20. maxdepth#:=  2.25pt#;                   % max depth for delimiters,e.g., [,{,(
  21. math_axis#:= .5[maxheight#,-maxdepth#]; % vertical alignment for math 
  22.  
  23. accent_height#:=.3(ascender#-xheight#); % places bottom of accents 
  24. accent_depth#:=min(.5xheight#,.7(ascender#-xheight#)); % character ref box depth
  25.  
  26. define_whole_vertical_pixels(width,maxheight,ascender,cap,xheight,descender,
  27.   maxdepth,math_axis,accent_depth);
  28.  
  29. fixed_pitch_characters(false)(0);       % true/false, # of characters per inch
  30. oblique:=0;                             % slant of character reference points
  31.  
  32. bowlstem.uc#:=1.05*1.4 *fixed_pt;       % uppercase (uc) bowl width
  33. bowlstem.lc#:=1*1.4    *fixed_pt;       % lowercase (lc) bowl width
  34. stem.uc#:=1*1.4        *fixed_pt;       % uppercase stem width
  35. stem.lc#:=.95*1.4      *fixed_pt;       % lowercase stem width
  36. thin_stem.uc#:=.75*1.35*fixed_pt;       % width of thin uppercase stems
  37. thin_stem.lc#:=.7*1.35 *fixed_pt;       % width of thin lowercase stems
  38. define_pixels
  39.   (bowlstem.uc,bowlstem.lc,stem.uc,stem.lc,thin_stem.uc,thin_stem.lc);
  40.  
  41. boldness:=1/1.3;
  42. makeknown(fitbasis.lc#)(.19*width#-.8fixed_pt);
  43. makeknown(fitbasis.uc#)(.27*width#-.8fixed_pt);
  44.  
  45. apex.uc:=inlimit(.6stem.uc)(0,stem.uc); % apex flatness in uppercase
  46. apex.lc:=inlimit(.6stem.lc)(0,stem.lc); % apex flatness in lowercase
  47. ov_t.uc:=.02cap;                        % top curve overshoot for uppercase
  48. ov_t.lc:=.02xheight;                    % top curve overshoot for lowercase
  49. ov_b.uc:=.02cap;                        % bottom curve overshoot for uppercase
  50. ov_b.lc:=.02xheight;                    % bottom curve overshoot for lowercase
  51. ov_apex.uc:=.01cap;                     % apex overshoot for uppercase
  52. ov_apex.lc:=.01xheight;                 % apex overshoot for lowercase   
  53. apex_angle:=oblique;                    % for changing the angle at apex 
  54. if xheight<25:lowres_fix(ov_t.lc,ov_b.lc,ov_apex.lc); fi
  55. if cap<70:lowres_fix(ov_t.uc,ov_b.uc,ov_apex.uc); fi
  56.  
  57.                                         % for SERIFS and ARMS
  58. serif_thickness:=inlimit(eps)(eps,.5xheight); % base thickness of h-serifs
  59. terminal_thickness:=serif_thickness;    % base thickness of terminal serifs
  60. tip_thickness:=     serif_thickness;    % base thickness of arms
  61. bulb_thickness:=    .2pt;               % (base) thickness of bulbs
  62. x_bracket_h:=inlimit(.2xheight)(serif_thickness,.5xheight); % lc bracket join
  63. cap_bracket_h:=inlimit(.2cap)(serif_thickness,.5cap);       % uc bracket join
  64. bool(ctrls):=false;                     % for explicit placement of control pts
  65. onbase:=inlimit(0)(0,1);                % places control pt along base of serif
  66. onstem:=inlimit(0)(0,1);                % places control pt along stem of serif
  67. midbracket_pull:=    inlimit(.4)(0,1);  % pulls brackets in on arms and serifs
  68. entasis:=            inlimit(.1)(0,1);  % amount of arc in horizontal serif base
  69. terminal_entasis:=   inlimit(.1)(0,1);  % amount of arc in terminal serif base
  70. arm_angle:=          inlimit(10)(0,60); % global angle off of 90 degrees
  71. asc_terminal_angle:= inlimit(0)(0,60);  % at ascender height: from 0 deg...h,k,l
  72. x_terminal_angle:=   inlimit(0)(0,60);  % at x-height: from 0 deg...m,n,r
  73. base_terminal_angle:=inlimit(0)(0,60);  % at base line: from 0 deg...u
  74. diag_terminal_angle:=inlimit(0)(0,60);  % on diagonals: from 0 deg...k,v,w,y
  75. hs:=.6pt;                               % global horizontal serif length
  76. ts:=.6pt;                               % global terminal serif length
  77. as:=.6pt;                               % global arm length
  78. cs:=.65pt;                              % global curvedarm length
  79. serif_constant_amt:=0pt;                % adds same length amount to all serifs
  80. bool(bulbs):=false;                     % arms become bulbs if true
  81. bool(bulb_taper):=true;                 % changes bulbs to tapering shape
  82. taper_angle:=if bulb_taper:10 else:0 fi;% if bulb_taper, adjusts angle at end
  83. bulb_taper_amt:=1;                      % taper length as a % of limb thickness
  84. c_and_s.lc:=.75stem.lc;                 % c,s bulb length if bulb_taper=true
  85. c_and_s.uc:=.85stem.uc;                 % C,G,S bulb length if bulb_taper=true
  86. terminal_softness:=.2stem.lc;           % softness in heel of the terminal serif
  87. arm_softness:=.2thin_stem.lc;           % softness in the heel of the arm
  88.  
  89.                                         % ARCHES
  90. arch_thickness.uc:=.6stem.uc;           % uppercase arch thickness
  91. arch_thickness.lc:=.6stem.lc;           % lowercase arch thickness
  92. arch_tip.uc:=.8stem.uc;                 % thinnest part of the uc arch
  93. arch_tip.lc:=.8stem.lc;                 % thinnest part of the lc arch
  94. arch_reference:=inlimit(.85)(.4,.95);   % puts ref pts between tip/stem
  95. arch_inner_amt:=inlimit(.7)(.4,.95);    % puts arch pts between tip/ref pts
  96. r_arch:=l_arch:=inlimit(.6)(0,1);       % y-value of max outer stress on r_arch
  97. bool(ensure_min_archthickness):=true;   % guarantees minimum thickness
  98.  
  99.                                         % BOWLS
  100. major_curve.uc:=arch_thickness.uc;      % uppercase major bowl curve thickness
  101. major_curve.lc:=arch_thickness.lc;      % lowercase major bowl curve thickness
  102. minor_curve.uc:=.9arch_thickness.uc;    % uppercase minor bowl curve thickness
  103. minor_curve.lc:=.9arch_thickness.lc;    % lowercase minor bowl curve thickness
  104. major_bowl_tip.lc:=arch_tip.lc;         % lowercase major bowl tip thickness
  105. minor_bowl_tip.lc:=.8minor_curve.lc;    % lowercase minor bowl tip thickness
  106. major_bowl_reference:=inlimit(.63)(.4,.95); % puts ref pts between tip/bowlstem
  107. minor_bowl_reference:=inlimit(.5)(.4,.95);  % puts ref pts between tip/bowlstem
  108. major_bowl_inner_amt:=inlimit(.75)(.4,.95); % puts arch pts between tip/ref pts 
  109. minor_bowl_inner_amt:=inlimit(.75)(.4,.95); % puts arch pts between tip/ref pts
  110.  
  111. define_minimums(                        % these values keep a one pixel minimum
  112.   bowlstem.lc,stem.lc,thin_stem.lc,apex.lc,arch_thickness.lc,arch_tip.lc,
  113.   bowlstem.uc,stem.uc,thin_stem.uc,apex.uc,arch_thickness.uc,arch_tip.uc,
  114.   major_curve.lc,minor_curve.lc,major_bowl_tip.lc,minor_bowl_tip.lc,
  115.   major_curve.uc,minor_curve.uc);
  116.  
  117.                                         % ARCHES and BOWLS and CIRCULAR SHAPES
  118. v_stress:=.52;                          % places point of vert stress on bowl
  119. h_stress:=.51;                          % places horzstress on circular shapes
  120. ductal:=inlimit(.25)(0,1);              % for more ductal strokes: value of 1
  121. minor_ductal.lc:=.1*(xheight-minor_curve.lc-major_curve.lc); % minor curve join
  122. circ1:=inlimit(1)(.75,1.5);             % tension of outer curve shapes
  123. circ2:=inlimit(1)(.75,1.5);             % tension of inner curve shapes
  124. circ3:=inlimit(circ1-.07)(.75,1.5);     % tension of outer circular_shapes
  125.  
  126.                                         % JUNCTURES and NOTCHES
  127. bool(softjuncture):=true;               % are junctures soft? in junct macro
  128. juncture_opening:=inlimit(.1stem.lc)(0,stem.lc);% indent into stem at juncture
  129. stemcut_angle:=-2;                      % cut into stem at angle off of 90
  130. archcut_angle:=10;                      % cuts into regular arch path
  131. notch_length.uc:=.05stem.uc;            % length of corrective notching (uc)
  132. notch_length.lc:=.05stem.lc;            % length of corrective notching (lc)
  133. notch_width:=1;                         % width of corrective notching in pixels
  134. notch_pos:=.3;                          % positions the beginning of the notch
  135. bool(center_notch):=                    % centers all notches
  136.  if(thin_stem.lc/stem.lc)>=.75:true else:false fi;
  137. bool(nonotch):=if(xheight<15)           % if real low resolution
  138.  or(xheight#>15pt#)                     % or large character size
  139.  or(thin_stem.uc/stem.uc<.5):true       % or small thin/thick ratio
  140.  else:false fi;                         %   this overrides notching
  141.  
  142.                                         % PUNCTUATION, ACCENTS, MATH and PENS
  143. round_dot_diameter:=1.1stem.uc;         % diameter of dots on ;:    
  144. accent_dot_diameter:=.9stem.lc;         % diameter of dots(!?") and dot accents
  145. comma_dot_indent=inlimit(.25)(0,1);     % indent in the comma macro for the dot 
  146. bool(prime):=false;                     % changes commas to prime 
  147. prime_angle:=-20;                       % angle of prime-like comma
  148. bool(realsoft_accents):=true;           % make accents soft as possible
  149. accent_thin_end:=max(1,.5thin_stem.lc); % thinnest end of accents
  150. accent_thick_end:=max(1,.75stem.lc);     % thickest end of accents
  151. mathlines:=max(1,.45pt*1.4);            % thickness of lines in math characters
  152. head_thickness:=max(1,.9mathlines);     % arrowhead thickness
  153. def mathpen=pensquare scaled mathlines enddef;              % for []/=+#%-\<>_|^
  154. blank_space_thickness:=max(1,.7mathlines);                  % for space char
  155. def slashpen=pensquare scaled max(1,.6thin_stem.lc) enddef; % in O-slash chars
  156. def dashpen=pensquare scaled max(1,.75mathlines) enddef;    % for en em
  157.  
  158.                                         % MISCELLANEOUS
  159. join_radius:=.1pt;                      % global softness for use with softjoin
  160. bool(softpath):=true;                   % softens paths in macros
  161. narrow_amt:=inlimit(.7)(0,1);           % thins strokes if narrow condition=true
  162. w_narrow_amt:=inlimit(.3)(0,1);         % thins strokes especially for eMwW oe
  163. ebar_angle:=0;                          % used on the lowercase e
  164. bool(bold):=true;                       % changes accent shapes if bold
  165.  
  166. rulepen:=pensquare scaled 1;            % makes screenrules 1 pixel thick
  167. if oblique=0:let //=relax               % lets // do nothing if needed otherwise
  168.   else:def //=slanted sind(oblique/cosd oblique) enddef fi; % // slants ref pts
  169. pair upward,downward; 
  170.  upward=dir(90-oblique);                % "up" along oblique angle
  171.  downward=dir(-90-oblique);             % "down" along oblique angle
  172.  
  173.                                         % ALTERNATE character specs
  174. bool(test_all_characters):=false;       % allows testing of alternate characters
  175.  alt0:=0; bool(a_full_bowl):=false;     % for half/double bowls on a
  176.  alt1:=0; bool(g_full_bowl):=true;      % for half/double bowls on g
  177.  alt2:=0; bool(spur):=true;             % for pronged terminals on G,a,b,g,q
  178.  alt3:=0; bool(like_lowercase):=false;  % alternate U
  179.  alt4:=0; bool(flat_diagonal_endings):=true; % else teminalserif k,v,w,x,y,V,W,X
  180.  alt5:=0; bool(beveled_join):=true;     % on R,K,k
  181.  alt6:=0; bool(open_tail):=true;        % for 3,5,6,9
  182.  alt7:=0; bool(diagonal_three):=true;   % for diagonal as opposed to round top 3
  183.  alt8:=0; bool(inflection_two):=false;  % for 2 with inflection
  184.  alt9:=0; bool(G_spur):=true;           % spur on G
  185.  alt10:=0;bool(open_four):=true;        % for top of 4 
  186.  
  187. extra_beginchar:=extra_beginchar&"save t,p,ref; path p[],p[]',ref[];";
  188. extra_beginchar:=extra_beginchar&"w#:=charwd;";          % for adjust def
  189. extra_endchar:=extra_endchar&"wsaved:=w; w:=r-l;";       % for adjust def
  190.  
  191. for x:="a":
  192.  wanted[byte x]:=true; endfor           % test these characters
  193. let iff=always_iff;                     % tests all chars in the file
  194.   let show_character=draw_outlines; 
  195.   if (mode<>proof):let show_character=fill_all;fi
  196.  
  197. input rotext                            % Roman Text character set
  198.  
  199.  
  200.