% params.ly
% generic paper parameters
-paperfile = \papersize + ".ly";
-% paperfile = "a4.ly";
-\include \paperfile;
-\include "paper.ly";
-
-interline = \staffheight / 4.0;
-
-
-stafflinethickness = \interline / 10.0;
-
-% urg, need grace_ versions of these too?
-beam_thickness = 0.52 * (\interline - \stafflinethickness);
-
-#'beam-thickness = \beam_thickness; %% UGR
-
-
-interbeam = (2.0 * \interline + \stafflinethickness - \beam_thickness) / 2.0;
-interbeam4 = (3.0 * \interline - \beam_thickness) / 3.0;
-
-
-
-% stems and beams
-%
-% poor man's array size
-stem_max = 3.0;
-
-%{ Specify length of stems for notes in the staff
-that don't have beams.
- Measured in staff positions.
-%}
-stem_length0 = 7.;
-stem_length1 = 5.;
-stem_length2 = 4.;
-stem_length3 = 3.;
-
%{
-The space taken by a note is determined by the formula
-
-arithmetic_multiplier * ( c + log2 (time) ))
-
-where code(time) is the amount of time a note occupies. The value
-of code(c) is chosen such that the smallest space within a measure is
-arithmetic_basicspace. The smallest space is the one following the
-shortest note in the measure. Typically arithmetic_basicspace is set
-to the width of a quarter note head.
-%}
-arithmetic_basicspace = 2.;
-arithmetic_multiplier = 0.9 * \quartwidth ;
+TODO:
+* cleanup
+* use elt properties, iso. paper variables.
-% urg.
-% if only these ugly arrays were scm,
-% we could override them in the Grace context
-grace_factor = 0.8;
-grace_stem_length0 = \stem_length0 * \grace_factor;
-grace_stem_length1 = \stem_length1 * \grace_factor;
-grace_stem_length2 = \stem_length2 * \grace_factor;
-grace_stem_length3 = \stem_length3 * \grace_factor;
-
-% only used for beams
-minimum_stem_length0 = 0.0 ; % not used
-minimum_stem_length1 = 3. ;
-minimum_stem_length2 = 2.5;
-minimum_stem_length3 = 2.0;
-
-grace_minimum_stem_length0 = 0.0 ; % not used
-grace_minimum_stem_length1 = \minimum_stem_length1 * \grace_factor;
-grace_minimum_stem_length2 = \minimum_stem_length2 * \grace_factor;
-grace_minimum_stem_length3 = \minimum_stem_length3 * \grace_factor;
-
-%{
- stems in unnatural (forced) direction should be shortened,
- according to [Roush & Gourlay]. Their suggestion to knock off
- a whole staffspace seems a bit drastical: we'll do half.
%}
-forced_stem_shorten0 = 1.0;
-forced_stem_shorten1 = \forced_stem_shorten0;
-forced_stem_shorten2 = \forced_stem_shorten1;
-forced_stem_shorten3 = \forced_stem_shorten2;
-
-% don't shorten grace stems, always up
-grace_forced_stem_shorten0 = 0.;
-grace_forced_stem_shorten1 = \grace_forced_stem_shorten0;
-grace_forced_stem_shorten2 = \grace_forced_stem_shorten1;
-grace_forced_stem_shorten3 = \grace_forced_stem_shorten2;
-
-% there are several ways to calculate the direction of a beam
-%
-% * MAJORITY : number count of up or down notes
-% * MEAN : mean centre distance of all notes
-% * MEDIAN : mean centre distance weighted per note
-%
-#'slope-quantisation = #'normal
-#'beam-dir-algorithm = #'majority %urg.
-#'Stem_tremolo::beam-width = 1.5 * \quartwidth ;
+papersizename = \papersize ;
+paperfile = \papersize + ".ly";
+% paperfile = "a4.ly";
+\include \paperfile;
+\include "paper.ly";
-
-#'Clef_item::visibility-lambda = #postbreak-only-visibility
-#'Key_item::visibility-lambda = #postbreak-only-visibility
-#'Breathing_sign::visibility-lambda = #non-postbreak-visibility
-
+staffspace = \staffheight / 4.0;
+stafflinethickness = \staffspace / 10.0;
%{
-dit(code(beam_dir_algorithm)) Specify algorithm for determining
-whether beams go up or down. It is real valued. If set to 2.0 then
-majority selection is used. If set to 3.0, then mean selection is
-used based on the mean center distance. If set to 4.0 then median
-selection is used, based on the median center distance.
-%}
+The space taken by a note is determined by the formula
+ SPACE = arithmetic_multiplier * ( C + log2 (TIME) ))
-% catch suspect beam slopes, set slope to zero if
-% outer stem is lengthened more than
-beam_lengthened = 0.2 * \interline;
-% and slope is running away steeper than
-beam_steep_slope = 0.2 / 1.0;
+where TIME is the amount of time a note occupies. The value of C is
+chosen such that the smallest space within a measure is
+arithmetic_basicspace:
-%{
-dit(code(slur_x_gap)) Horizontal space between note and slur. Set to
-code(\interline / 5) by default.
+ C = arithmetic_basicspace - log2 (mininum (SHORTEST, 1/8))
-%}
-% OSU: suggested gap = ss / 5;
-slur_x_gap = \interline / 5.0;
-slur_y_gap = 0.25 * \interline;
-slur_y_free = 0.75 * \interline;
-slur_x_minimum = 1.5 * \interline;
+The smallest space is the one following the shortest note in the
+measure, or the space following a hypothetical 1/8 note. Typically
+arithmetic_basicspace is set to a value so that the shortest note
+takes about two noteheads of space (ie, is followed by a notehead of
+space):
-%{
-Like beams, slurs often aren't as steep as the notes they encompass.
-This sets the amount of damping.
-%}
-% slope damping: keep dy/dx < slur_slope_damping
-slur_slope_damping = 0.3;
-slur_interstaff_slope_damping = 0.6;
-% height damping: keep h/dx < slur_height_damping
-slur_height_damping = 0.4;
-slur_interstaff_height_damping = 0.5;
-% snap to stem if slur ends closer to stem than
-slur_snap_to_stem = 1.75 * \interline;
-slur_interstaff_snap_to_stem = 2.5 * \interline;
-% maximum dy change allowed by snapping
-slur_snap_max_slope_change = 0.5;
-slur_interstaff_snap_max_slope_change = 0.5;
-
-
-
-tie_x_minimum = \interline + \slur_x_minimum;
-% OSU: tie gap == slur gap
-tie_x_gap = \slur_x_gap;
-tie_y_gap = 0.25 * \interline;
-% length of a tie that's a staffspace high
-tie_staffspace_length = 4.0 * \interline;
-
-% ugh: rename to bow (in bezier.cc and fonts.doc too...)
-% slur_thickness = 1.8 * \stafflinethickness;
-slur_thickness = 1.4 * \stafflinethickness;
+ 2*quartwidth = arithmetic_multiplier * ( C + log2 (SHORTEST) ))
-%{
- Specifies the maximum height of slurs.
-%}
-slur_height_limit = \staffheight;
+ { using: C = arithmetic_basicspace - log2 (mininum (SHORTEST, 1/8)) }
+ { assuming: SHORTEST <= 1/8 }
+ = arithmetic_multiplier *
+ ( arithmetic_basicspace - log2 (SHORTEST) + log2 (SHORTEST) )
-%{
-Specifes the ratio of slur hight to slur width
-to aim for. Default value is 0.3.
-%}
+ = arithmetic_multiplier * arithmetic_basicspace
-% slur_ratio = 0.3;
-% try bit flatter slurs
-slur_ratio = 0.25;
-slur_clip_ratio = 1.2;
-slur_clip_height = 3.0 * \staffheight;
-slur_clip_angle = 100.0;
-slur_rc_factor = 2.4;
+ { choose: arithmetic_multiplier = 1.0*quartwidth (why?)}
-% ugh
-notewidth = (\quartwidth + \wholewidth) / 2.0;
+ = quartwidth * arithmetic_basicspace
-gourlay_energybound = 100000.;
-%{
-Maximum number of measures per line to try when using Gourlay
-method.
-%}
-gourlay_maxmeasures = 10.;
+ =>
+ arithmetic_basicspace = 2/1 = 2
-%{ Ross. page 151 lists these values, but we think that thick lines
-and kernings are too thick.
+If you want to space your music wider, use something like:
-bar_kern = 0.5 * \interline;
-bar_thinkern = 0.75 * \interline;
-barthick_thick = 0.5* \interline;
-barthick_score = 0.13333* \interline;
-barthick_thin = 0.1*\interline;
+ arithmetic_basicspace = 4.;
%}
+% We use 0.9*\quartwidth, because 1.0 seems to wide.
+% quartwidth == 1.32 * staffspace
+% We don't adjust arithmetic_basicspace accordingly (why not?)
+arithmetic_multiplier = 0.9 * 1.32 * \staffspace ;
+arithmetic_basicspace = 2.0;
-bar_kern = 3.0 * \stafflinethickness;
-bar_thinkern = 3.0 * \stafflinethickness;
-barthick_thick = 6.0* \stafflinethickness;
-barthick_thin = 1.6*\stafflinethickness;
-barthick_score = 1.6*\stafflinethickness;
-
-bracket_arch_thick = \interline / 3.0;
-bracket_width = 2.0 * \interline;
-bracket_thick = 2.0 * \stafflinethickness;
-bracket_arch_height = 1.5 * \interline;
-bracket_arch_width = \bracket_arch_height;
-bracket_arch_angle = 50.0;
-
-tuplet_spanner_gap = 2.0 * \interline;
-tuplet_thick = 1.0*\stafflinethickness;
-volta_thick = 1.6*\stafflinethickness;
-volta_spanner_height = 2.0 *\interline;
-
-% relative thickness of thin lines 1.6 : 1 : 0.8
-stemthickness = 0.8*\stafflinethickness;
-rulethickness = \stafflinethickness;
-extender_height = 0.8*\stafflinethickness;
+% URG: the magic constants for area asymmetry
+bezier_pct_c0 = -0.2;
+bezier_pct_c3 = 0.000006;
+bezier_pct_out_max = 0.8;
+bezier_pct_in_max = 1.2;
+bezier_area_steps = 1.0;
-hyphen_thickness = 0.05*\font_normal;
-hyphen_height = 0.2*\font_normal;
-hyphen_minimum_length = 0.25*\font_normal;
-% Multi-measure rests
-mmrest_x_minimum = 1.4*\staffheight;
+% vertical space between lines of text.
+line_kern = \staffspace;
-% chop off this much when next to pp / ff sign.
-crescendo_shorten = 4.0 * \interline;
-crescendo_thickness = \stafflinethickness;
-crescendo_height = 0.666 * \interline;
-
-% in internote.
-restcollision_minimum_dist = 3.0;
-restcollision_minimum_beamdist = 1.5;
-
-
-% unit for note collision resolving
-collision_note_width = \notewidth; %ugh.
-
-% deprecated!
-postBreakPadding = 0.0;
-
% optical correction amount.
-stemSpacingCorrection = 0.5*\interline;
+stemSpacingCorrection = 0.5*\staffspace;
%{
%{
If columns do not have spacing information set, set it to this much
%}
-loose_column_distance = 2.0 * \interline;
+loose_column_distance = 2.0 * \staffspace;
%{
Relative cost of compressing (vs. stretching). Increasing this
compression_energy_factor = 0.6;
-% if stem is on middle line, choose this direction.
-stem_default_neutral_direction = 1.0;
-
-% in interline
-articulation_script_padding_default = 1.0;
+\translator { \NoteNamesContext }
+\translator { \ScoreContext }
+\translator { \ChoirStaffContext}
+\translator { \GraceContext}
+\translator { \RhythmicStaffContext}
+\translator { \StaffContext }
+\translator { \VoiceContext}
+\translator { \StaffGroupContext }
+\translator { \ChordNameContext }
+\translator { \ChordNameVoiceContext}
+\translator { \GrandStaffContext}
+\translator { \LyricsContext }
+\translator { \ThreadContext}
+\translator { \PianoStaffContext}
+\translator { \LyricsVoiceContext }
-% Backward compatibility -- has no function;
-Gourlay = 0.0;
-Wordwrap =0.0;
-\include "engraver.ly";
-#'margin-shape = #'()
-%
-#'Local_key_item::left-padding = #'0.2
-#'Local_key_item::right-padding = #'0.4