Move generic macros used for parmesan fonts into separate file.

[lilypond.git] / mf / parmesan-heads.mf

diff --git a/mf/parmesan-heads.mf b/mf/parmesan-heads.mf
index 56d053d1fe2f6705a34e5e1628842d84f2a1d298..ba12b69ace39622c36ae9035a8f94b4c0f7d8b52 100644 (file)
--- a/mf/parmesan-heads.mf
+++ b/mf/parmesan-heads.mf
@@ -145,38 +145,6 @@ fet_beginchar ("Left stemmed notehead", "slneomensural");
 fet_endchar;
 
 
-%
-% Find point on `curve' which gives the tangent between point `p'
-% and `curve'.  To guide the search, two auxiliary points must be
-% specified, `p_in' and `p_out'.  The line between `p' and `p_in'
-% must intersect `curve', while the line between `p' and `p_out'
-% must not.
-%
-def find_tangent (expr p, curve, p_in, p_out) =
-       begingroup;
-       save mid, t, t_good, in, out;
-       pair mid, in, out;
-
-       in := p_in;
-       out := p_out;
-
-       forever:
-               mid := 0.5 [in, out];
-               exitif abs (out - mid) <= eps;
-               t := xpart (curve intersectiontimes (p -- mid));
-               if (t > 0):
-                       in := mid;
-                       t_good := t;
-               else:
-                       out := mid;
-               fi;
-       endfor;
-
-       point t_good of curve
-       endgroup
-enddef;
-
-
 %
 % Some sources (eg. Musix/OpusTeX) think that the appendage should be on
 % the left, some say right.  Right wins democratically.
@@ -411,78 +379,6 @@ fet_beginchar ("Mensural brevis notehead", "s-1mensural");
 fet_endchar;
 
 
-%
-% Shift `curve' along the line given by the auxiliary points `p_in'
-% and `p_out' until `line' is a tangent, and return the shift.
-% If `curve' is shifted to position `p_in', it must intersect
-% `line', while shifted to `p_out' it must not.
-%
-def find_tangent_shift (expr line, curve, p_in, p_out) =
-       begingroup;
-       save mid, t, t_good, in, out;
-       pair mid, in, out;
-
-       in := p_in;
-       out := p_out;
-
-       forever:
-               mid := 0.5 [in, out];
-               exitif abs (out - mid) <= eps;
-               t := xpart ((curve shifted mid) intersectiontimes line);
-               if (t > 0):
-                       in := mid;
-                       t_good := t;
-               else:
-                       out := mid;
-               fi;
-       endfor;
-
-       mid
-       endgroup
-enddef;
-
-
-%
-% Get subpath specified by `dir_in' and `dir_out' of `curve'
-% which is then shifted by `offset'.  Assure that result has
-% the same orientation as `curve'.
-%
-def get_subpath (expr curve, dir_in, dir_out, offset) =
-       begingroup;
-       save t_in, t_out;
-
-       t_in := directiontime dir_in of curve;
-       t_out := directiontime dir_out of curve;
-
-       if t_in > t_out:
-               t_out := t_out + length curve;
-       fi;
-
-       (subpath (t_in, t_out) of curve) shifted offset
-       endgroup
-enddef;
-
-
-%
-% This is the same as `get_subpath', except that the time values
-% used to construct the resulting subpath are rounded to integers.
-%
-def get_subpath_i (expr curve, dir_in, dir_out, offset) =
-       begingroup;
-       save t_in, t_out;
-
-       t_in := directiontime dir_in of curve;
-       t_out := directiontime dir_out of curve;
-
-       if t_in > t_out:
-               t_out := t_out + length curve;
-       fi;
-
-       (subpath (round t_in, round t_out) of curve) shifted offset
-       endgroup
-enddef;
-
-
 def draw_diamond_head (expr head_h, pen_w, pen_h, angle, open) =
        save head_width, head_height;
        save ellipse, ellipse_r;