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bug or feature with the extent of NoteColumn with "2.15.20" ?


From: Thomas Morley
Subject: bug or feature with the extent of NoteColumn with "2.15.20" ?
Date: Thu, 8 Dec 2011 00:54:12 +0100

Hi,

trying to compile a function manipulating the NoteColumn with "2.15.20" I noticed some differences to "2.14.2"
So I wrote a test-function to display the grob-length:

\version "2.14.2"
%\version "2.15.20"

#(define (x-length-of-grob grob)
  (let* ((sys (ly:grob-system grob))
         (grob-length (interval-length (ly:grob-extent grob sys X))))
  (newline)
  (display grob-length)))
 
\relative c' {
        \override NoteColumn #'after-line-breaking = #x-length-of-grob
        <c e>4
        <c e>4.
        <c eis>4
        <c eis>4\arpeggio
}

With "2.14.2" I get:
1.316178
1.316178
1.316178
1.316178

With "2.15.20" I get:
1.316178
1.316178
1.316178
2.616182


It seems that in "2.15.20" the arpeggio is part of the NoteColumn. (But not the DotColumn or the AccidentalPlacement)
The IR 3.2.71 note-column-interface states only stems and noteheads.
-> http://lilypond.org/doc/v2.15/Documentation/internals-big-page#note_002dcolumn_002dinterface


Is this a bug or a feature for something?


Cheers,
  Harm

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