ly/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 stafflinethickness = \interline / 10.0;
  13
  14 % urg, need grace_ versions of these too?
  15 beam_thickness = 0.52 * (\interline - \stafflinethickness);
  16
  17 #'beam-thickness = \beam_thickness;  %% UGR
  18
  19
  20 interbeam = (2.0 * \interline + \stafflinethickness - \beam_thickness) / 2.0;
  21 interbeam4 = (3.0 * \interline - \beam_thickness) / 3.0;
  22
  23 %{
  24 The space taken by a note is determined by the formula
  25
  26 arithmetic_multiplier * ( c + log2 (time) ))
  27
  28 where code(time) is the amount of time a note occupies.  The value
  29 of code(c) is chosen such that the smallest space within a measure is
  30 arithmetic_basicspace.  The smallest space is the one following the
  31 shortest note in the measure.  Typically arithmetic_basicspace is set
  32 to the width of a quarter note head.
  33 %}
  34 arithmetic_basicspace = 2.;
  35 arithmetic_multiplier = 0.9 * \quartwidth ;
  36
  37
  38 #'Stem_tremolo::beam-width = 1.5 * \quartwidth ;
  39
  40 #'Clef_item::visibility-lambda = #postbreak-only-visibility
  41 #'Key_item::visibility-lambda = #postbreak-only-visibility
  42 #'Breathing_sign::visibility-lambda = #non-postbreak-visibility
  43
  44 % catch suspect beam slopes, set slope to zero if
  45 % outer stem is lengthened more than
  46 beam_lengthened = 0.2 * \interline;
  47 % and slope is running away steeper than
  48 beam_steep_slope = 0.2 / 1.0;
  49
  50 %{
  51 dit(code(slur_x_gap)) Horizontal space between note and slur.  Set to
  52 code(\interline / 5) by default.
  53
  54 %}
  55 % OSU: suggested gap = ss / 5;
  56 slur_x_gap = \interline / 5.0;
  57 slur_y_gap = 0.25 * \interline;
  58 slur_y_free = 0.75 * \interline;
  59 slur_x_minimum = 1.5 * \interline;
  60
  61 %{
  62 Like beams, slurs often aren't as steep as the notes they encompass.
  63 This sets the amount of damping.
  64 %}
  65 % slope damping: keep dy/dx < slur_slope_damping
  66 slur_slope_damping = 0.3;
  67 slur_interstaff_slope_damping = 0.6;
  68 % height damping: keep h/dx < slur_height_damping
  69 slur_height_damping = 0.4;
  70 slur_interstaff_height_damping = 0.5;
  71 % snap to stem if slur ends closer to stem than
  72 slur_snap_to_stem = 1.75 * \interline;
  73 slur_interstaff_snap_to_stem = 2.5 * \interline;
  74 % maximum dy change allowed by snapping
  75 slur_snap_max_slope_change = 0.5;
  76 slur_interstaff_snap_max_slope_change = 0.5;
  77
  78
  79
  80 tie_x_minimum = \interline + \slur_x_minimum;
  81 % OSU: tie gap == slur gap
  82 tie_x_gap = \slur_x_gap;
  83 tie_y_gap = 0.25 * \interline;
  84 % length of a tie that's a staffspace high
  85 tie_staffspace_length = 4.0 * \interline;
  86
  87 % ugh: rename to bow (in bezier.cc and fonts.doc too...)
  88 % slur_thickness = 1.8 * \stafflinethickness;
  89 slur_thickness = 1.4 * \stafflinethickness;
  90
  91 %{
  92  Specifies the maximum height of slurs.
  93 %}
  94 slur_height_limit = \staffheight;
  95
  96
  97 %{
  98 Specifes the ratio of slur hight to slur width
  99 to aim for.  Default value is 0.3.
 100 %}
 101
 102 % slur_ratio = 0.3;
 103 % try bit flatter slurs
 104 slur_ratio = 0.25;
 105 slur_clip_ratio = 1.2;
 106 slur_clip_height = 3.0 * \staffheight;
 107 slur_clip_angle = 100.0;
 108 slur_rc_factor = 2.4;
 109
 110 % ugh
 111 notewidth = (\quartwidth + \wholewidth) / 2.0;
 112
 113 gourlay_energybound = 100000.;
 114 %{
 115 Maximum number of measures per line to try when using Gourlay
 116 method.
 117 %}
 118 gourlay_maxmeasures = 10.;
 119
 120
 121 %{ Ross. page 151 lists these values, but we think that thick lines
 122 and kernings are too thick.
 123
 124 bar_kern = 0.5 * \interline;
 125 bar_thinkern = 0.75 * \interline;
 126 barthick_thick = 0.5* \interline;
 127 barthick_score = 0.13333* \interline;
 128 barthick_thin = 0.1*\interline;
 129
 130 %}
 131
 132 bar_kern = 3.0 * \stafflinethickness;
 133 bar_thinkern = 3.0 * \stafflinethickness;
 134 barthick_thick = 6.0* \stafflinethickness;
 135 barthick_thin = 1.6*\stafflinethickness;
 136 barthick_score = 1.6*\stafflinethickness;
 137
 138 bracket_arch_thick = \interline / 3.0;
 139 bracket_width = 2.0 * \interline;
 140 bracket_thick = 2.0 * \stafflinethickness;
 141 bracket_arch_height = 1.5 * \interline;
 142 bracket_arch_width = \bracket_arch_height;
 143 bracket_arch_angle = 50.0;
 144
 145 tuplet_spanner_gap = 2.0 * \interline;
 146 tuplet_thick = 1.0*\stafflinethickness;
 147 volta_thick = 1.6*\stafflinethickness;
 148 volta_spanner_height = 2.0 *\interline;
 149
 150 % relative thickness of thin lines  1.6 : 1 : 0.8
 151 stemthickness = 0.8*\stafflinethickness;
 152 rulethickness = \stafflinethickness;
 153
 154
 155 extender_height = 0.8*\stafflinethickness;
 156
 157 hyphen_thickness = 0.05*\font_normal;
 158 hyphen_height = 0.2*\font_normal;
 159 hyphen_minimum_length = 0.25*\font_normal;
 160
 161 % Multi-measure rests
 162 mmrest_x_minimum = 1.4*\staffheight;
 163
 164
 165 % chop off this much when next to pp / ff sign.
 166 crescendo_shorten = 4.0 * \interline;
 167 crescendo_thickness   = \stafflinethickness;
 168 crescendo_height = 0.666 * \interline;
 169
 170 % in internote.
 171 restcollision_minimum_dist = 3.0;
 172 restcollision_minimum_beamdist = 1.5;
 173
 174
 175 % unit for note collision resolving
 176 collision_note_width = \notewidth;      %ugh.
 177
 178 % deprecated!
 179 postBreakPadding = 0.0;
 180
 181 % optical correction amount.
 182 stemSpacingCorrection = 0.5*\interline;
 183
 184
 185 %{
 186  relative strength of space following breakable columns (eg. prefatory matter)
 187  %}
 188 breakable_column_space_strength = 2.0;
 189
 190 % space after inline clefs and such get this much stretched
 191 decrease_nonmus_spacing_factor = 1.0 ;
 192
 193 %{
 194  space before musical columns (eg. taken by accidentals) get this much
 195  stretched when they follow a musical column, in absence of grace notes.
 196
 197  0.0 means no extra space (accidentals are ignored)
 198 %}
 199 musical_to_musical_left_spacing_factor = 0.4;
 200
 201 %{
 202  stretch space this much if there are grace notes before the column
 203 %}
 204 before_grace_spacing_factor = 1.2;
 205
 206 %{
 207 If columns do not have spacing information set, set it to this much
 208 %}
 209 loose_column_distance = 2.0 * \interline;
 210
 211 %{
 212 Relative cost of compressing (vs. stretching).  Increasing this
 213 will cause scores to be set looser
 214 .
 215 %}
 216
 217 compression_energy_factor = 0.6;
 218
 219 % if stem is on middle line, choose this direction.
 220 stem_default_neutral_direction = 1.0;
 221
 222 % in interline
 223 articulation_script_padding_default = 1.0;
 224
 225 % Backward compatibility -- has no function;
 226 Gourlay = 0.0;
 227 Wordwrap =0.0;
 228
 229 \include "engraver.ly";
 230
 231
 232 #'margin-shape = #'()
 233
 234
 235 %
 236 #'Local_key_item::left-padding = #'0.2
 237 #'Local_key_item::right-padding = #'0.4
 238
 239 #'Staff_symbol::staff-space = \interline ;
 240 #'Staff_symbol::line-count = #5