ly/params.ly

   1 % params.ly
   2 % generic paper parameters
   3
   4 #'staff-height = \staffheight;
   5
   6 paperfile = \papersize + ".ly";
   7 % paperfile = "a4.ly";
   8 \include \paperfile;
   9 \include "paper.ly";
  10
  11 staffspace = \staffheight / 4.0;
  12 stafflinethickness = \staffspace / 10.0;
  13
  14 % deprecated
  15 interline = \staffspace;
  16
  17
  18 % urg, need grace_ versions of these too?
  19 beam_thickness = 0.52 * (\staffspace - \stafflinethickness);
  20
  21 #'beam-thickness = \beam_thickness;  %% UGR
  22
  23
  24 interbeam = (2.0 * \staffspace + \stafflinethickness - \beam_thickness) / 2.0;
  25 interbeam4 = (3.0 * \staffspace - \beam_thickness) / 3.0;
  26
  27 %{
  28 The space taken by a note is determined by the formula
  29
  30 arithmetic_multiplier * ( c + log2 (time) ))
  31
  32 where code(time) is the amount of time a note occupies.  The value
  33 of code(c) is chosen such that the smallest space within a measure is
  34 arithmetic_basicspace.  The smallest space is the one following the
  35 shortest note in the measure.  Typically arithmetic_basicspace is set
  36 to the width of a quarter note head.
  37 %}
  38 arithmetic_basicspace = 2.;
  39 arithmetic_multiplier = 0.9 * \quartwidth ;
  40
  41
  42 #'Stem_tremolo::beam-width = 1.5 * \quartwidth ;
  43
  44 #'Clef_item::visibility-lambda = #postbreak-only-visibility
  45 #'Key_item::visibility-lambda = #postbreak-only-visibility
  46 #'Breathing_sign::visibility-lambda = #non-postbreak-visibility
  47
  48 % catch suspect beam slopes, set slope to zero if
  49 % outer stem is lengthened more than
  50 beam_lengthened = 0.2 * \staffspace;
  51 % and slope is running away steeper than
  52 beam_steep_slope = 0.2 / 1.0;
  53
  54 %{
  55 dit(code(slur_x_gap)) Horizontal space between note and slur.  Set to
  56 code(\staffspace / 5) by default.
  57
  58 %}
  59 % OSU: suggested gap = ss / 5;
  60 slur_x_gap = \staffspace / 5.0;
  61 slur_y_gap = 0.25 * \staffspace;
  62 slur_y_free = 0.75 * \staffspace;
  63 slur_x_minimum = 1.5 * \staffspace;
  64
  65 %{
  66 Like beams, slurs often aren't as steep as the notes they encompass.
  67 This sets the amount of damping.
  68 %}
  69 % slope damping: keep dy/dx < slur_slope_damping
  70 slur_slope_damping = 0.3;
  71 slur_interstaff_slope_damping = 0.6;
  72 % height damping: keep h/dx < slur_height_damping
  73 slur_height_damping = 0.4;
  74 slur_interstaff_height_damping = 0.5;
  75 % snap to stem if slur ends closer to stem than
  76 slur_snap_to_stem = 1.75 * \staffspace;
  77 slur_interstaff_snap_to_stem = 2.5 * \staffspace;
  78 % maximum dy change allowed by snapping
  79 slur_snap_max_slope_change = 0.5;
  80 slur_interstaff_snap_max_slope_change = 0.5;
  81 slur_thickness = 1.2 * \stafflinethickness;
  82
  83
  84
  85 tie_x_minimum = \staffspace + \slur_x_minimum;
  86 % OSU: tie gap == slur gap
  87 tie_x_gap = \slur_x_gap;
  88 tie_y_gap = 0.25 * \staffspace;
  89 % length of a tie that's a staffspace high
  90 tie_staffspace_length = 4.0 * \staffspace;
  91
  92 % ugh: rename to bow (in bezier.cc and fonts.doc too...)
  93
  94 % used to be 1.4 .
  95 tie_thickness = 1.2 * \stafflinethickness;
  96 tie_staffline_clearance = 2.0 *\tie_thickness;
  97
  98 %{
  99  Specifies the maximum height of slurs.
 100 %}
 101 slur_height_limit = \staffheight;
 102
 103
 104 %{
 105 Specifes the ratio of slur hight to slur width
 106 to aim for.  Default value is 0.3.
 107 %}
 108 % slur_ratio = 0.3;
 109 % try bit flatter slurs
 110 slur_ratio = 0.25;
 111 slur_clip_ratio = 1.2;
 112 slur_clip_height = 3.0 * \staffheight;
 113 slur_clip_angle = 100.0;
 114 slur_rc_factor = 2.4;
 115
 116 % ugh
 117 notewidth = (\quartwidth + \wholewidth) / 2.0;
 118
 119 gourlay_energybound = 100000.;
 120 %{
 121 Maximum number of measures per line to try when using Gourlay
 122 method.
 123 %}
 124 gourlay_maxmeasures = 10.;
 125
 126
 127 %{ Ross. page 151 lists these values, but we think that thick lines
 128 and kernings are too thick.
 129
 130 bar_kern = 0.5 * \staffspace;
 131 bar_thinkern = 0.75 * \staffspace;
 132 barthick_thick = 0.5* \staffspace;
 133 barthick_score = 0.13333* \staffspace;
 134 barthick_thin = 0.1*\staffspace;
 135
 136 %}
 137
 138 bar_kern = 3.0 * \stafflinethickness;
 139 bar_thinkern = 3.0 * \stafflinethickness;
 140 barthick_thick = 6.0* \stafflinethickness;
 141 barthick_thin = 1.6*\stafflinethickness;
 142 barthick_score = 1.6*\stafflinethickness;
 143
 144 bracket_arch_thick = \staffspace / 3.0;
 145 bracket_width = 2.0 * \staffspace;
 146 bracket_thick = 2.0 * \stafflinethickness;
 147 bracket_arch_height = 1.5 * \staffspace;
 148 bracket_arch_width = \bracket_arch_height;
 149 bracket_arch_angle = 50.0;
 150
 151 tuplet_spanner_gap = 2.0 * \staffspace;
 152 tuplet_thick = 1.0*\stafflinethickness;
 153 volta_thick = 1.6*\stafflinethickness;
 154 volta_spanner_height = 2.0 *\staffspace;
 155
 156 % relative thickness of thin lines  1.6 : 1 : 0.8
 157 stemthickness = 0.8*\stafflinethickness;
 158 rulethickness = \stafflinethickness;
 159
 160
 161 extender_height = 0.8*\stafflinethickness;
 162
 163 hyphen_thickness = 0.05*\font_normal;
 164 hyphen_height = 0.2*\font_normal;
 165 hyphen_minimum_length = 0.25*\font_normal;
 166
 167 % Multi-measure rests
 168 multi_measure_rest_x_minimum = 2.5*\staffheight;
 169 multi_measure_rest_padding = 2.0 *\staffspace;
 170 multi_measure_rest_expand_limit = 10.0;
 171
 172 % chop off this much when next to pp / ff sign.
 173 crescendo_shorten = 4.0 * \staffspace;
 174 crescendo_thickness   = \stafflinethickness;
 175 crescendo_height = 0.666 * \staffspace;
 176
 177 % in internote.
 178 restcollision_minimum_dist = 3.0;
 179 restcollision_minimum_beamdist = 1.5;
 180
 181
 182 % unit for note collision resolving
 183 collision_note_width = \notewidth;      %ugh.
 184
 185 % deprecated!
 186 postBreakPadding = 0.0;
 187
 188 % optical correction amount.
 189 stemSpacingCorrection = 0.5*\staffspace;
 190
 191
 192 %{
 193  relative strength of space following breakable columns (eg. prefatory matter)
 194  %}
 195 breakable_column_space_strength = 2.0;
 196
 197 % space after inline clefs and such get this much stretched
 198 decrease_nonmus_spacing_factor = 1.0 ;
 199
 200 %{
 201  space before musical columns (eg. taken by accidentals) get this much
 202  stretched when they follow a musical column, in absence of grace notes.
 203
 204  0.0 means no extra space (accidentals are ignored)
 205 %}
 206 musical_to_musical_left_spacing_factor = 0.4;
 207
 208 %{
 209  stretch space this much if there are grace notes before the column
 210 %}
 211 before_grace_spacing_factor = 1.2;
 212
 213 %{
 214 If columns do not have spacing information set, set it to this much
 215 %}
 216 loose_column_distance = 2.0 * \staffspace;
 217
 218 %{
 219 Relative cost of compressing (vs. stretching).  Increasing this
 220 will cause scores to be set looser
 221 .
 222 %}
 223
 224 compression_energy_factor = 0.6;
 225
 226 % if stem is on middle line, choose this direction.
 227 stem_default_neutral_direction = 1.0;
 228
 229 % in staffspace
 230 articulation_script_padding_default = 1.0;
 231
 232 % Backward compatibility -- has no function;
 233 Gourlay = 0.0;
 234 Wordwrap =0.0;
 235
 236 \include "engraver.ly";
 237
 238
 239 #'margin-shape = #'()
 240
 241
 242 %
 243 #'Local_key_item::left-padding = #'0.2
 244 #'Local_key_item::right-padding = #'0.4
 245
 246 #'Staff_symbol::staff-space = \staffspace ;
 247 #'Staff_symbol::line-count = #5
 248