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style.h - abc2ps - A powerful sheet setting tool using the simple abc notation |
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git clone git://vernunftzentrum.de/abc2ps.git |
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style.h (3162B) |
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1 /* |
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2 * This file is part of abc2ps, |
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3 * Copyright (C) 1996,1997,1998 Michael Methfessel |
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4 * See file abc2ps.c for details. |
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5 */ |
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6 |
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7 /* Global style parameters for the note spacing and Knuthian glue. */ |
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8 |
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9 /* Parameters here are used to set spaces around notes. |
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10 Names ending in p: prefered natural spacings |
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11 Names ending in x: expanded spacings |
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12 Units: everything is based on a staff which is 24 points high |
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13 (ie. 6 pt between two staff lines). */ |
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14 |
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15 /* name for this set of parameters */ |
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16 #define STYLE "std" |
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17 |
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18 /* ----- set_style_pars: set the parameters which control note spacing -… |
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19 void set_style_pars (strictness) |
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20 float strictness; |
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21 { |
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22 float y; |
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23 |
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24 f0p=0.10; f0x=0.15; |
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25 f5p=0.60; f5x=0.7; |
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26 f1p=1.0; f1x=1.0; |
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27 |
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28 lnnp=40; lnnx=90; |
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29 bnnp=1.0; bnnx=1.0; |
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30 fnnp=1.0; fnnx=1.0; |
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31 |
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32 lbnp=30; lbnx=50; |
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33 bbnp=0.2; bbnx=0.2; |
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34 rbnp=0.12; rbnx=0.10; |
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35 |
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36 lnbp=30; lnbx=55; |
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37 bnbp=0.9; bnbx=0.9; |
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38 rnbp=0.10; rnbx=0.1; |
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39 |
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40 /* set parameters f0p,f1p according to strictness */ |
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41 /* the y*y makes the scale a bit more intuitive .. */ |
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42 y=1-strictness; |
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43 f0p=y*y*0.40; |
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44 f0x=y*y*0.60; |
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45 if (verbose>3) |
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46 printf ("Set style parameters, strictness %.2f (f0p=%.3f, f0x=%.3f)\… |
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47 strictness,f0p,f0x); |
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48 |
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49 } |
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50 |
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51 |
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52 /* ----- Function of the spacing parameters ----- */ |
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53 |
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54 /* Parameters for the length-to-width mapping: |
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55 f0p, f5p, f1p are the return values for notes of zero duration, |
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56 half notes, and whole notes. A parabolic interpolation is |
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57 used for other note durations. The purpose is to allow a non-linear |
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58 relation between the note duration and the spacing on the paper. |
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59 |
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60 Parameters for the note-note spacing: |
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61 (the internote spacing between two notes that follow |
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62 each other without a bar in between.) |
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63 |
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64 - lnn is an overall multiplier, i.e. the final note width in points |
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65 is the return value of function nwid times lnn. |
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66 - bnn determines how strongly the first note enters into the spacing. |
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67 For bnn=1, the spacing is calculated using the first note. |
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68 For bnn=0, the spacing is the average for the two notes. |
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69 - fnn multiplies the spacing under a beam, to compress the notes a bi… |
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70 |
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71 Parameters for the bar-note spacing: |
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72 (the spacing between a bar and note at the measure start.) |
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73 |
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74 - lbn is the overall multiplier for the return values from nwid. |
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75 - rbn is the note duration which defines the default spacing. |
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76 - bbn determines how strongly the note duration enters into the spaci… |
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77 For bbn=1, the spacing is lbn times the return value of nwid. |
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78 For bbn=0, the spacing is lbn times the width of rbn times timesig. |
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79 |
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80 Parameters for the note-bar spacing: |
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81 (the spacing between a note at the measure end and the bar.) |
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82 |
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83 - lnb is the overall multiplier for the return values from nwid. |
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84 - rnb is the note duration which defines the default spacing. |
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85 - bnb determines how strongly the note duration enters into the spaci… |
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86 For bnb=1, the spacing is lnb times the return value of nwid. |
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87 For bnb=0, the spacing is lnb times the width of rbn times timesig.… |
