Re: still no ultimate way to create three-staff piano layout

[David Kastrup]

"Keith OHara" <address@hidden> writes:

> On Mon, 16 Dec 2013 01:07:35 -0800, David Kastrup <address@hidden> wrote:
>
>> Keith OHara <address@hidden> writes:
>>
>>> The StaffGrouper, that makes different spacing at the end of a group, is
>>> created by the Vertical_align_engraver (despite what the manual says) so
>>> if you remove the Vertical_align_engraver form the PianoStaff, only the
>>> enclosing StaffGroup will have the appearance of a group.
>>
>> Does that mean that the patch pushed in
>> <URL:http://code.google.com/p/lilypond/issues/detail?id=3641#c7> (why
>> has the issue been reopened instead of creating a new one for the
>> documentation) is incomplete?  The effect of the patch should be that
>> nested "Vertical_align_engraver"s behave as if the inner engravers have
>> been removed altogether.
>>
>
> Vertical_align_engraver makes the start braces around, and adjusts
> spacing between, the staves it contains.  We do sometimes want a
> GrandStaff (Flute 1 and 2) inside a StaffGroup (woodwinds) and in
> those cases want both Vertical_align_engravers to be active and
> drawing their braces.
>
> Karol had a special case, here, where he did *not* want the inner
> Vertical_align_engraver doing its job.
>
> David, you might have confused the jobs of Vertical_align_engraver
> (draws start braces, etc.) and Axis_group_engraver (arranges notes,
> etc. on to lines of music).  I'll comment on your patch so you can
> check that it does what you meant to at the time.

Ah yes.  Can't get them all sorted out always.

-- 
David Kastrup