Re: spacing/breaking issue [time-sensitive]

[Nicolas Sceaux]

Le 31 mai 2010 à 17:11, Kieren MacMillan a écrit :

> [Lilypond 2.13.21]
> 
> Hey all,
> 
> I'm trying to get a score out this afternoon (for a competition deadline 
> tomorrow!) and I'm running into a bug...
> 
> My score looks quite nice on 17 systems spread over 5 pages -- I would like:
>  Page 1: title + 3
>  Pages 2-4: 4 systems
>  Page 5: 2 systems
> 
> Unfortunately, "minimal-breaking" causes Lilypond to [try to] cram everything 
> on one page, whereas "optimal-breaking" gives 3 systems for most pages and 4 
> on the last (even though ragged-last-bottom = ##t). No doubt one or more of 
> my problems is related to the known bug regarding the missing properties
>  blank-page-force = 0
>  blank-after-score-page-force = 0
> but I've explicitly set that as well.
> 
> Other than manually inserting breaks, what can I do to get Lilypond to Do The 
> Right Thing™?

If you compile LilyPond yourself, you might try the following patch:

diff --git a/lily/page-breaking.cc b/lily/page-breaking.cc
index 0ef1a30..2251e50 100644
--- a/lily/page-breaking.cc
+++ b/lily/page-breaking.cc
@@ -1137,6 +1137,7 @@ Page_breaking::pack_systems_on_least_pages (vsize 
configuration, vsize first_pag
   Page_spacing space (page_height (first_page_num, false), this);
 
   cache_line_details (configuration);
+  compute_line_heights ();
   for (vsize line = 0; line < cached_line_details_.size (); line++)
     {
       Real prev_force = space.force_;