Re: [Lilypond-auto] Issue 3279 in lilypond: space consecutive tempo marks

[lilypond]

Comment #28 on issue 3279 by address@hidden: space consecutive tempo  
marks
http://code.google.com/p/lilypond/issues/detail?id=3279

> Collision avoidance for objects that align above fixed objects (that
> use the break-align interface) is purely vertical.

That might be a limitation we could/want to get rid of.
But it is not only for tempo/marks indications, the same applies to
TextScript, Script, Dynamics etc. and any other outside-staff object
(inside-staff maybe as well).


> The placement rules pick the first object from the givne list that
> is present, which is generally useful, so placing the rehearsal mark
> objects where something else /would be/ is tricky.

I don't agree.  RehearsalMark should align on barline.
There is no barline position at line break (begin of line), but one
could see where the barline /would be/ based on repeat volta
(see comments 12 & 13).  Issue 1150 states that LilyPond does not
correctly align RehearsalMark on this position.

I don't understand why "begin-of-line barline position" is correct when
LilyPond print a begin-of-repeat-volta barline, but not when there is
no special barline at begin-of-line.


> Possibly.  That is the set of rules I originally proposed; see image
> in comment #1

It's hard to tell where the first note (NoteColumn) would be for
more-than-one-measure MMR.
And I agree with Werner that it seems too far to the right.
BUT tempo indications always left-aligned on KeySignature (when there
is a MMR or not) is not the solution IMHO (for both situations).


> If a partial solution based on the existing system is not acceptable,
> this will wait until version 2.20.

I'm sorry, I do not mean to disagree just "for the pleasure", but I do
not think it does a service to implement half flawed solution.


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