Re: [Lilypond-auto] Issue 3631 in lilypond: 2.17 does a worse job with vertical spacing and/or the page layout than 2.16

[lilypond]

Comment #11 on issue 3631 by address@hidden: 2.17 does a worse job with  
vertical spacing and/or the page layout than 2.16
http://code.google.com/p/lilypond/issues/detail?id=3631

Sorry, I got confused by the definition of the function I copied: it was  
called paper-system-staff-extents and returned a pair with the vertical  
reference point of first and last system in relation to the stencil.  Or  
something like that.  At any rate, not overly useful information for the  
problem.

When I use
#(use-modules (scm paper-system))
\markup
\on-the-fly #(lambda (layout props arg)
              (for-each
               (lambda (ps)
                (format #t "~S\n" (paper-system-extent ps Y)))
               (vector->list (ly:paper-score-paper-systems
                              (ly:score-embedded-format
                               #{ \score {
                               \new Voice \repeat unfold 50
                               { c,,,4 \repeat unfold 30 r4 c''''''4 \repeat 
unfold 30 r4 }
                               \layout { }
                             } #} layout))))
              empty-stencil) \null

And 2.16.2 against (for convenience's sake) 2.17.30, I get the attached  
diff.  The differences are quite minuscule (1e-16 and similar should not  
make a difference, really).  So the box dimensions of the systems do not  
seem to be the cause of the difference in results unless I am overlooking  
something here.

Attachments:
        difff  3.7 KB

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