On Sat, 30 Mar 2013 06:20:55 -0700, Kieren MacMillan
<kieren_macmil...@sympatico.ca> wrote:
both MetronomeMark and RehearsalMark need to have space reserved.
If any two grobs "have space reserved", will collision avoidance always be
accomplished horizontally?
That is what I meant by "have space reserved", so yes. The 'extra-spacing-width and
-height settings that we were talking about tell LilyPond how much space an object requires, for
purposes of the horizontal spacing of notes. So when extra-spacing-width/height requests enough
space from the horizontal-spacing step such that the object actually fits in its natural position,
LilyPond will not need to move it vertically. Generally, requesting enough space means zeros or a
widening pair like #'(-1.0 . 1.0) in the "extra"-space settings.
Most of the time, your overrides work fine. I haven't yet narrowed down the exact
circumstances where they don't (i.e., lead instead to "catastrophic" spacing
problems).
The one problem you pointed out
<https://lists.gnu.org/archive/html/lilypond-user/2013-02/msg00199.html>
was just after I said how I make the tempo mark stretch the music (because that
is what you asked about) but *forgot* that you also have to give the tempo an
initial Y-offset so it goes over note-heads.
I'm proposing to make a full self-consistent set of overrides be the new default
<http://code.google.com/p/lilypond/issues/detail?id=3279>
P.S. Your ScoreMarks context
<https://lists.gnu.org/archive/html/lilypond-user/2013-02/msg00338.html> sets
both tempo and time-signatures. In normal staves the tempo sits on top of the
time-signature, but in ScoreMarks you might want it over the first *note-column* in
the new tempo:
\override MetronomeMark #'break-align-symbols = #'()
% the default was #'(time-signature key-signature)
\override MetronomeMark #'non-break-align-symbols = #'(paper-column-interface)
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