*/
#include "prob.hh"
+#include "skyline.hh"
LY_DEFINE (ly_prob_set_property_x, "ly:prob-set-property!",
2, 1, 0, (SCM obj, SCM sym, SCM value),
- "Set property @var{sym} of @var{obj} to @var{value}")
+ "Set property @var{sym} of @var{obj} to @var{value}.")
{
LY_ASSERT_SMOB (Prob, obj, 1);
Prob *ps = unsmob_prob (obj);
LY_DEFINE (ly_prob_type_p, "ly:prob-type?",
2, 0, 0,
(SCM obj, SCM type),
- "If obj the specified prob-type?")
+ "Is @var{obj} the specified prob-type?")
{
Prob*prob = unsmob_prob (obj);
return scm_from_bool (prob && prob->type () == type);
LY_DEFINE (ly_make_prob, "ly:make-prob",
2, 0, 1,
(SCM type, SCM init, SCM rest),
- "Create a Prob.")
+ "Create a @code{Prob} object.")
{
Prob *pr = new Prob (type, init);
{
return ly_prob_type_p (obj, ly_symbol2scm ("paper-system"));
}
+
+LY_DEFINE (ly_paper_system_minimum_distance, "ly:paper-system-minimum-distance",
+ 2, 0, 0, (SCM sys1, SCM sys2),
+ "Measure the minimum distance between these two paper-systems,"
+ " using their stored skylines if possible and falling back to"
+ " their extents otherwise.")
+{
+ Real ret = 0;
+ Prob *p1 = unsmob_prob (sys1);
+ Prob *p2 = unsmob_prob (sys2);
+ Skyline_pair *sky1 = Skyline_pair::unsmob (p1->get_property ("vertical-skylines"));
+ Skyline_pair *sky2 = Skyline_pair::unsmob (p2->get_property ("vertical-skylines"));
+
+ if (sky1 && sky2)
+ ret = (*sky1)[DOWN].distance ((*sky2)[UP]);
+ else
+ {
+ Stencil *s1 = unsmob_stencil (p1->get_property ("stencil"));
+ Stencil *s2 = unsmob_stencil (p2->get_property ("stencil"));
+ Interval iv1 = s1->extent (Y_AXIS);
+ Interval iv2 = s2->extent (Y_AXIS);
+ ret = iv2[UP] - iv1[DOWN];
+ }
+ return scm_from_double (ret);
+}