It really helped me, I am very grateful to you. Would you like to change
the vertical spacing chapter
<http://lilypond.org/doc/v2.18/Documentation/learning/vertical-spacing> in
the learning manual? You were able to explain a lot of things in plain
language.

пт, 1 февр. 2019 г. в 05:54, Aaron Hill <[email protected]>:

> On 2019-01-31 9:11 am, Павел Буданов wrote:
> > I've solved this problem partially with for lower contexts, but i
> > can't find the necessary properties for upper contexts. Can you help
> > me?
> >
> > \new StaffGroup
> > <<
> >   \new Dynamics { s2.\< s4\ff }
> >   \new Lyrics \lyricmode { Ly4 -- ric ly -- ric }
> >   \new Staff \with
> >   { \override VerticalAxisGroup.staff-staff-spacing =
> > #'((basic-distance . 20) (padding . 0.5)) }
> >   { a'4 a' a' a' }
> >   \new Staff { d'4 d' d' d' }
> >   \new Lyrics \with
> >   {
> >     \override VerticalAxisGroup.nonstaff-relatedstaff-spacing =
> > #'((basic-distance . 10) (padding . 0.5))
> >     \override VerticalAxisGroup.nonstaff-nonstaff-spacing =
> > #'((basic-distance . 10) (padding . 0.5))
> >   }
> >   \lyricmode { Ly4 -- ric ly -- ric }
> >   \new Dynamics { s2.\< s4\ff }
> > >>
>
> Be sure to examine the output of LilyPond for warnings, not just errors:
>
> > warning: staff-affinities should only decrease
>
> This is telling you that you need to manually adjust
> VerticalAxisGroup.staff-affinity.  By default, Dynamics uses a
> staff-affinity of CENTER (0) as it typically appears between two staves,
> whereas Lyrics uses UP (1) as it typically appears below a staff.  Your
> upper Lyrics context is trying to locate its "relatedstaff" above, but
> there is none to be found.  You will need to set its staff-affinity to
> DOWN (-1).  (You could leave the two Dynamics contexts set to CENTER
> staff-affinity; but it arguably better to also explicitly set them to
> UP/DOWN based on where they appear.)
>
> There is a second issue that unfortunately there is no warning for.  You
> are setting basic-distance but not minimum-distance as well.  By
> omitting minimum-distance from the spacing alist, you are using the
> default value of zero.  LilyPond only attempts to honor basic-distance,
> but will collapse down to minimum-distance if needed (and often a little
> too eagerly).  If you tried to set only basic-distance for the upper
> contexts, you may find that it has no effect.
>
> It may be easier to see what it going on by only using padding, although
> a combination of basic-distance, minimum-distance, padding, and
> stretchability is often required to get the most out of the flexible
> spacing system.  Consider the following:
>
> %%%%
> \version "2.19.82"
>
> % Forcibly reset all default spacing variables to zero.
> \layout {
>    \context { \Dynamics
>      \override VerticalAxisGroup.nonstaff-nonstaff-spacing = #'(())
>      \override VerticalAxisGroup.nonstaff-relatedstaff-spacing = #'(())
>      \override VerticalAxisGroup.nonstaff-unrelatedstaff-spacing = #'(())
>    }
>    \context { \Lyrics
>      \override VerticalAxisGroup.nonstaff-nonstaff-spacing = #'(())
>      \override VerticalAxisGroup.nonstaff-relatedstaff-spacing = #'(())
>      \override VerticalAxisGroup.nonstaff-unrelatedstaff-spacing = #'(())
>    }
>    \context { \Staff
>      \override VerticalAxisGroup.default-staff-staff-spacing = #'(())
>      \override VerticalAxisGroup.staff-staff-spacing = #'(())
>    }
> }
>
> \new StaffGroup <<
>    \new Dynamics \with {
>        % Dynamics is above Staff.
>        \override VerticalAxisGroup.staff-affinity = #DOWN
>        % Spacing between this Dynamics and the following Lyrics.
>        \override VerticalAxisGroup.nonstaff-nonstaff-spacing =
>          #'((padding . 2))
>      }
>      { s2.\< s4\ff }
>    \new Lyrics \with {
>        % Lyrics is above Staff.
>        \override VerticalAxisGroup.staff-affinity = #DOWN
>        % Spacing between this Lyrics and the following Staff.
>        \override VerticalAxisGroup.nonstaff-relatedstaff-spacing =
>          #'((padding . 3))
>      }
>      \lyricmode { Ly4 -- ric ly -- ric }
>    \new Staff \with {
>        % Spacing between this Staff and the following Staff.
>        \override VerticalAxisGroup.staff-staff-spacing =
>          #'((padding . 5))
>      }
>      { a'4 a' a' a' }
>    \new Staff { d'4 d' d' d' }
>    \new Lyrics \with {
>        % Lyrics is below Staff.
>        \override VerticalAxisGroup.staff-affinity = #UP
>        % Spacing between this Lyrics and the preceding Staff.
>        \override VerticalAxisGroup.nonstaff-relatedstaff-spacing =
>          #'((padding . 3))
>        % Spacing between this Lyrics and the following Dynamics.
>        \override VerticalAxisGroup.nonstaff-nonstaff-spacing =
>          #'((padding . 2))
>      }
>      \lyricmode { Ly4 -- ric ly -- ric }
>    \new Dynamics \with {
>        % Dynamics is below Staff.
>        \override VerticalAxisGroup.staff-affinity = #UP
>      }
>      { s2.\< s4\ff }
>    >>
> %%%%
>
> Play around with the various padding amounts in the snippet.  It should
> hopefully be clear which spacing variable affects what spacing.
> Generally speaking, spacing is done top to bottom, so spacing is almost
> always below an item.  The exception is when a non-staff has its related
> (or unrelated) staff above it.
>
> Once you have a good feel for that, set padding to a large negative
> number (e.g. -100) and then experiment with setting minimum-distance as
> well.  The negative padding will permit overlap, so it is easier to see
> how minimum-distance works.  You should notice that you need larger
> values for minimum-distance than you did with padding to achieve a
> similar spacing.  That is because minimum-distance is measured not from
> the extents/skylines of the content but from the reference point for
> each context.  The Notation Reference lists these unique reference
> points.
>
> After that, basic-distance works the same as minimum-distance in terms
> of being measured from the reference points.  Just remember that since
> LilyPond only tries to respect the basic-distance, you may need to rely
> more on minimum-distance in practice.
>
> Hope some of this helps.
>
> -- Aaron Hill
>
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