Re: "Programming error" bug?

[David Sumbler]

Thank you for your help in this matter.

I added the line "\consists Staff_collecting_engraver" as suggested, and read the somewhat cryptic paragraph under Mark_engraver in the IR, as indicated in the link you provided.

Unfortunately I still got the same error messages as before.

However, re-reading the "cryptic paragraph", I decided that perhaps it indicated that the Staff_collecting_engraver should be removed from other contexts.  I therefore added the line

\remove Staff_collecting_engraver

to the \context { } section, and this indeed solved the problem.

Thanks again for pointing me in the right direction!

David

On Sun, 2021-11-14 at 16:13 +0100, Jean Abou Samra wrote:

Le 13/11/2021 à 20:41, David Sumbler a écrit :

I have just started on a new Lilypond project, having had little 

interaction with Lilypond for several months.  I installed v.2.23.4.

Although I have so far only set 3 lines of music on 2 staves, the 

message "programming error: cyclic dependency: calculation-in-progress 

encountered for #'adjacent-pure-heights (VerticalAxisGroup)" is issued 

8 times when compiling.

From the very little I could find searching online, it seems as if it 

might have something to do with my having moved Mark-engraver etc. 

from their usual context.  It was also suggested that this is a bug.

Is there some way of suppressing these messages?  I know how to 

suppress warnings, but that won't work with these error messages.

The code I am using to set up the "staff" containing metronome marks 

etc. is:

\layout {

  \context {

    \name "MarkLine"

    \type "Engraver_group"

    \consists Output_property_engraver

    \consists Axis_group_engraver

    \consists Mark_engraver

    \consists Metronome_mark_engraver

    \consists Text_spanner_engraver

    \override RehearsalMark.extra-spacing-width = #'(0 . 1)

    \override MetronomeMark.extra-spacing-width = #'(0.5 . -inf.0)

    \override TextSpanner.Y-offset = #3.5

    \override VerticalAxisGroup.minimum-Y-extent = #'(-2 . 2)

    \override VerticalAxisGroup.staff-staff-spacing =

    #'((basic-distance . 1)

       (minimum-distance . 1)

       (padding . 1)

       (stretchability . 3))

  }

  \context {

    \Score

    \remove Mark_engraver

    \remove Metronome_mark_engraver

    \accepts MarkLine

  }

}

I can't remember where I got this code from.  Is there something that 

needs to be changed in it?

You also have to move the Staff_collecting engraver,

as documented at

https://lilypond.org/doc/v2.23/Documentation/internals/mark_005fengraver

Giving:

\version "2.23.4"

\layout {

   \context {

     \name "MarkLine"

     \type "Engraver_group"

     \consists Output_property_engraver

     \consists Axis_group_engraver

     \consists Mark_engraver

     \consists Metronome_mark_engraver

     \consists Text_spanner_engraver

     \consists Staff_collecting_engraver

     \override RehearsalMark.extra-spacing-width = #'(0 . 1)

     \override MetronomeMark.extra-spacing-width = #'(0.5 . -inf.0)

     \override TextSpanner.Y-offset = #3.5

     \override VerticalAxisGroup.minimum-Y-extent = #'(-2 . 2)

     \override VerticalAxisGroup.staff-staff-spacing =

     #'((basic-distance . 1)

        (minimum-distance . 1)

        (padding . 1)

        (stretchability . 3))

   }

   \context {

     \Score

     \remove Mark_engraver

     \remove Metronome_mark_engraver

     \accepts MarkLine

   }

}

<<

   \new MarkLine { \mark \default }

   { a1 }

 >>

Note that the programming errors appeared because

an internal check was enabled. In other words, it

is worth fixing your code even with older versions

even if there is no warning (observe how the vertical

spacing gets different in the example above).

Best,

Jean