Hi,
Page spacing algorithm seems to over estimate the height of markup lines.
Example:
===========
\version "2.13.23"
\header { tagline = ##f }
\paper {
annotate-spacing = ##t
#(define page-breaking ly:minimal-breaking)
}
#(set-default-paper-size "a6" 'portrait)
#(define-markup-list-command (test layout props num) (number?)
(interpret-markup-list layout props
(let ((result '()))
(do ((i 0 (1+ i)))
((> i num) (reverse! result))
(set! result (cons (format "~a" i) result))))))
\markuplines \column-lines \test #50
===========
The page spacing code gives:
New page
add line with estimated full height=3.000000 --> estimated space left:
76.374882
add line with estimated tallness=3.000000 --> estimated space left: 72.874882
add line with estimated tallness=3.000000 --> estimated space left: 69.374882
add line with estimated tallness=3.000000 --> estimated space left: 65.874882
add line with estimated tallness=3.000000 --> estimated space left: 62.374882
add line with estimated tallness=3.000000 --> estimated space left: 58.874882
add line with estimated tallness=3.000000 --> estimated space left: 55.374882
add line with estimated tallness=3.000000 --> estimated space left: 51.874882
add line with estimated tallness=3.000000 --> estimated space left: 48.374882
add line with estimated tallness=3.000000 --> estimated space left: 44.874882
add line with estimated tallness=3.000000 --> estimated space left: 41.374882
add line with estimated tallness=3.000000 --> estimated space left: 37.874882
add line with estimated tallness=3.000000 --> estimated space left: 34.374882
add line with estimated tallness=3.000000 --> estimated space left: 30.874882
add line with estimated tallness=3.000000 --> estimated space left: 27.374882
add line with estimated tallness=3.000000 --> estimated space left: 23.874882
add line with estimated tallness=3.000000 --> estimated space left: 20.374882
add line with estimated tallness=3.000000 --> estimated space left: 16.874882
add line with estimated tallness=3.000000 --> estimated space left: 13.374882
add line with estimated tallness=3.000000 --> estimated space left: 9.874882
add line with estimated tallness=3.000000 --> estimated space left: 6.374882
add line with estimated tallness=3.000000 --> estimated space left: 2.874882
add line with estimated tallness=3.000000 --> estimated space left: -0.625118
(=> put this line on a new page)
New page
add line with estimated full height=3.000000 --> estimated space left:
74.304290
add line with estimated tallness=3.000000 --> estimated space left: 70.804290
add line with estimated tallness=3.000000 --> estimated space left: 67.304290
add line with estimated tallness=3.000000 --> estimated space left: 63.804290
add line with estimated tallness=3.000000 --> estimated space left: 60.304290
add line with estimated tallness=3.000000 --> estimated space left: 56.804290
add line with estimated tallness=3.000000 --> estimated space left: 53.304290
add line with estimated tallness=3.000000 --> estimated space left: 49.804290
add line with estimated tallness=3.000000 --> estimated space left: 46.304290
add line with estimated tallness=3.000000 --> estimated space left: 42.804290
add line with estimated tallness=3.000000 --> estimated space left: 39.304290
add line with estimated tallness=3.000000 --> estimated space left: 35.804290
add line with estimated tallness=3.000000 --> estimated space left: 32.304290
add line with estimated tallness=3.000000 --> estimated space left: 28.804290
add line with estimated tallness=3.000000 --> estimated space left: 25.304290
add line with estimated tallness=3.000000 --> estimated space left: 21.804290
add line with estimated tallness=3.000000 --> estimated space left: 18.304290
add line with estimated tallness=3.000000 --> estimated space left: 14.804290
add line with estimated tallness=3.000000 --> estimated space left: 11.304290
add line with estimated tallness=3.000000 --> estimated space left: 7.804290
add line with estimated tallness=3.000000 --> estimated space left: 4.304290
add line with estimated tallness=3.000000 --> estimated space left: 0.804290
add line with estimated tallness=3.000000 --> estimated space left: -2.695710
(=> put this line on a new page)
New page
add line with estimated full height=3.000000 --> estimated space left:
74.270146
add line with estimated tallness=3.000000 --> estimated space left: 70.770146
add line with estimated tallness=3.000000 --> estimated space left: 67.270146
add line with estimated tallness=3.000000 --> estimated space left: 63.770146
add line with estimated tallness=3.000000 --> estimated space left: 60.270146
add line with estimated tallness=3.000000 --> estimated space left: 56.770146
add line with estimated tallness=3.000000 --> estimated space left: 53.270146
However, once the lines areactually printed on page, the space left on each page
is 14.38, 13.81 and 58.77.
As a result, a gap is observed at the bottom of the first pages, where more
text line
could have been placed.
Nicolas
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