init/params.ly

   1 % params.ly
   2 % generic paper parameters
   3
   4 paperfile = \papersize + ".ly";
   5 % paperfile = "a4.ly";
   6 \include \paperfile;
   7 \include "paper.ly";
   8
   9 interline = \staffheight / 4.0;
  10
  11
  12 % thickness of stafflines
  13 staffline = \interline / 10.0;
  14
  15 beam_thickness = 0.52 * (\interline - \staffline);
  16 interbeam = (2.0 * \interline - \beam_thickness) / 2.0;
  17 interbeam4 = (3.0 * \interline - \beam_thickness) / 3.0;
  18
  19 % stems and beams
  20 %
  21 % poor man's array size
  22 stem_max = 3.0;
  23 %
  24 stem_length0 = 3.5*\interline;
  25 stem_length1 = 2.5 * \interline;
  26 stem_length2 = 2.0 * \interline;
  27 stem_length3 = 1.5 * \interline;
  28
  29 % only used for beams
  30 minimum_stem_length0 = 0.0; % not used
  31 minimum_stem_length1 = 1.5 * \interline;
  32 minimum_stem_length2 = 1.25 * \interline;
  33 minimum_stem_length3 = 1.0 * \interline;
  34
  35 % stems in unnatural (forced) direction should be shortened,
  36 % according to [Roush & Gourlay].  Their suggestion to knock off
  37 % a whole staffspace seems a bit drastical: we'll do half.
  38 %
  39 forced_stem_shorten0 = 0.5 * \interline;
  40 forced_stem_shorten1 = \forced_stem_shorten0;
  41 forced_stem_shorten2 = \forced_stem_shorten1;
  42 forced_stem_shorten3 = \forced_stem_shorten2;
  43
  44 % there are several ways to calculate the direction of a beam
  45 %
  46 % * MAJORITY : number count of up or down notes
  47 % * MEAN     : mean centre distance of all notes
  48 % * MEDIAN   : mean centre distance weighted per note
  49 %
  50 % enum Dir_algorithm { DOWN=-1, UP=1, MAJORITY=2, MEAN, MEDIAN };
  51 %
  52 DOWN = -1.0;
  53 UP = 1.0;
  54 MAJORITY = 2.0;
  55 MEAN = 3.0;
  56 MEDIAN = 4.0;
  57 % [Ross]: majority
  58 beam_dir_algorithm = \MAJORITY;
  59
  60 % catch suspect beam slopes, set slope to zero if
  61 % outer stem is lengthened more than
  62 beam_lengthened = 0.2 * \interline;
  63 % and slope is running away steeper than
  64 beam_steep_slope = 0.2 / 1.0;
  65
  66 % OSU: suggested gap = ss / 5;
  67 slur_x_gap = \interline / 5.0;
  68 slur_x_minimum = 2.0 * \interline;
  69 slur_slope_damping = 0.5;
  70 tie_x_minimum = \slur_x_minimum;
  71 tie_x_gap = \slur_x_gap;
  72 tie_slope_damping = 0.3;
  73
  74 % ugh: rename to bow (in bezier.cc and fonts.doc too...)
  75 % slur_thickness = 1.8 * \staffline;
  76 slur_thickness = 1.4 * \staffline;
  77 slur_height_limit = \staffheight;
  78
  79 % mmm, try bit flatter slurs
  80 % slur_ratio = 1.0 / 3.0;
  81 slur_ratio = 0.3;
  82 slur_clip_ratio = 1.2;
  83 slur_clip_height = 3.0 * \staffheight;
  84 slur_clip_angle = 100.0;
  85 slur_rc_factor = 2.4;
  86
  87 % ugh
  88 notewidth = (\quartwidth + \wholewidth) / 2.0;
  89
  90 % ugh
  91 barsize = \staffheight;
  92 rulethickness = \staffline;
  93 stemthickness = \staffline;
  94
  95
  96 gourlay_energybound = 100000.;
  97 %{
  98 The following bounds the number of measures
  99 on a line.  Decreasing it greatly reduces computation time
 100 %}
 101 gourlay_maxmeasures = 10.;
 102 castingalgorithm = \Gourlay;
 103 \include "engraver.ly";
 104