Updates:
Owner: [email protected]
Labels: GSoC-LyricProject
Comment #1 on issue 3299 by [email protected]: dynamics, articulations
etc. attached to spacers are wrongly aligned
http://code.google.com/p/lilypond/issues/detail?id=3299
\markup \justify {
Here's why the dynamics and articulations are placed like this.
Let's draw a grid on the staffline, representing the flow of
time, with a line every quarter note:
}
\layout {
\context {
\Staff
\consists "Grid_point_engraver"
gridInterval = #(ly:make-moment 1/4)
}
\context {
\Score
\consists "Grid_line_span_engraver"
}
}
<<
{ \hideNotes f'2 f' }
{ s4 s s s }
\markup \justify {
Now, notation rules say that the notes \bold shouldn't
be centered on these gridlines - instead, their \italic
left edges should be flush with the lines:
}
<<
{ f'2 f' }
{ s4 s s s }
\markup \justify {
The second thing is that an object attached to a spacer
is centered on the horizontal position corresponding to
the appropriate musical moment - unlike an object that
is attached to a note (which is centered on that note):
}
\new Staff <<
{ e''2_\turn e''2 }
{ s2 s2_\turn }
\markup \justify {
If we draw gridlines on the examples from the bugreport,
everything should be clear now: objects attached to the
notes are nicely centered on their NoteHeads, while object
attached to spacers are centered on their PaperColumns,
which are \bold empty - hence the uneven spacing:
}
<<
\new Staff <<
{ a'2\f a'\f }
{ s4 s\f s s\f }
>>
{ s4 s s s }
<<
\new Staff <<
{ a'2\p a'\p }
{ s4 s\p s s\p }
>>
{ s4 s s s }
<<
\new Staff <<
{ f'2 g'2 }
{ s4 s\turn }
>>
{ s4 s s s }
\markup \justify {
I know how the solution for this issue should look like;
i'll post a solution in my alignment branch in a few days.
}
Attachments:
explanation 1.png 4.9 KB
explanation 2.png 6.4 KB
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