Re: alternative notehead style breaks cross-staff stem
- Original Message - From: "Urs Liska" To: "lilypond-user" Sent: Sunday, November 13, 2016 2:45 PM Subject: alternative notehead style breaks cross-staff stem Hi all, I'm trying to build something like similar to an automated harmonic display on two staves, and it seems that alternative note head styles break the cross staff stems: Is this known (at least not said in the NR)? Is there a way around this issue? Note that the example code isn't necessarily the ideal approach but a first attempt. What I eventually need is a way for a music function to produce such a "chord" distributed on two staves, connected by a cross-staff stem and either note head configurable in appearance. TIA for any hints or pointers Urs Fairly certain that the cross-staff stem engraver is in scm/music-functions.scm. Look for "cross-staff-connect". I don't know scheme and so can't see what the code does, but you may be able to see what's going on. -- Phil Holmes ___ lilypond-user mailing list lilypond-user@gnu.org https://lists.gnu.org/mailman/listinfo/lilypond-user
Re: alternative notehead style breaks cross-staff stem
Am 13.11.2016 um 15:45 schrieb Urs Liska: I'm trying to build something like similar to an automated harmonic display on two staves, and it seems that alternative note head styles break the cross staff stems: Is this known (at least not said in the NR)? Is there a way around this issue? I found the same bug in september but it seems like I didn’t report it … http://lists.gnu.org/archive/html/lilypond-user/2016-09/msg00698.html I posted a quick-and-dirty workaround in that thread. ___ lilypond-user mailing list lilypond-user@gnu.org https://lists.gnu.org/mailman/listinfo/lilypond-user
Re: alternative notehead style breaks cross-staff stem
2016-11-13 15:45 GMT+01:00 Urs Liska :
> Hi all,
>
> I'm trying to build something like similar to an automated harmonic
> display on two staves, and it seems that alternative note head styles
> break the cross staff stems:
>
> Is this known (at least not said in the NR)? Is there a way around this
> issue? Note that the example code isn't necessarily the ideal approach
> but a first attempt. What I eventually need is a way for a music
> function to produce such a "chord" distributed on two staves, connected
> by a cross-staff stem and either note head configurable in appearance.
>
> TIA for any hints or pointers
> Urs
>
>
> \version "2.19.51"
>
> \layout {
> \context {
> \PianoStaff
> \consists #Span_stem_engraver
> }
> }
>
> \score {
> <<
> \new PianoStaff <<
> \new Staff = "one" {
> s1
> }
>
> \new Staff = "two" {
> \clef bass
> <<
> \crossStaff {
> c,4 c, c, c,
> }
> \new Voice {
> \stemUp
> \change Staff = "one"
> \override NoteHead.style = #'harmonic
> e' g' bes' c''
> }
> >>
>
> }
> >>
> >>
> }
Hi Urs,
cross-staff Stems are only printed if certain conditions are fullfilled.
One of them is the Stem's left edge are within a range 0.001
-> `close-enough?' in music-functions.scm
In a recent thread I developed `pushNC' to force the Stems doing so.
http://lists.gnu.org/archive/html/lilypond-user/2016-11/msg00230.html
Works here as well:
\version "2.19.49"
pushNC =
\override NoteColumn.X-offset =
#(lambda (grob)
(let* ((p-c (ly:grob-parent grob X))
(p-c-elts (ly:grob-object p-c 'elements))
(stems
(if (ly:grob-array? p-c-elts)
(filter
(lambda (elt)(grob::has-interface elt 'stem-interface))
(ly:grob-array->list p-c-elts))
#f))
(stems-x-exts
(if stems
(map
(lambda (stem)
(ly:grob-extent
stem
(ly:grob-common-refpoint grob stem X)
X))
stems)
'()))
(sane-ext
(filter interval-sane? stems-x-exts))
(cars (map car sane-ext)))
(if (pair? cars)
(abs (- (apply max cars) (apply min cars)))
0)))
\layout {
\context {
\PianoStaff
\consists #Span_stem_engraver
}
}
\score {
<<
\new PianoStaff <<
\new Staff = "one" {
s1
}
\new Staff = "two" {
\clef bass
<<
\crossStaff {
c,4 c, c, c,
}
\new Voice {
\stemUp
\change Staff = "one"
\override NoteHead.style = #'harmonic
%\once
\pushNC
e' g' bes' c''
}
>>
}
>>
>>
}
HTH,
Harm
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Re: alternative notehead style breaks cross-staff stem
Am 13.11.2016 um 21:44 schrieb Thomas Morley:
> 2016-11-13 15:45 GMT+01:00 Urs Liska :
>> Hi all,
>>
>> I'm trying to build something like similar to an automated harmonic
>> display on two staves, and it seems that alternative note head styles
>> break the cross staff stems:
>>
>> ...
>
> Hi Urs,
>
> cross-staff Stems are only printed if certain conditions are fullfilled.
> One of them is the Stem's left edge are within a range 0.001
> -> `close-enough?' in music-functions.scm
>
> In a recent thread I developed `pushNC' to force the Stems doing so.
> http://lists.gnu.org/archive/html/lilypond-user/2016-11/msg00230.html
>
> Works here as well:
>
> ...
>
> HTH,
> Harm
Thank you, this indeed works well for my purpose, I'll soon share the
results.
The next step would be to have two notes connect their stems when *not*
in different staves, e.g.
\new Staff {
<<
{
\voiceOne
g''4 -\harmonic
}
\new Voice {
\voiceOne
c'4
}
>>
}
It seem crossStaff doesn't support this. But OTOH it may be simple to
calculate the lower stem's length in this case (as opposed to real cross
staff where you don't know the staff distance).
Urs
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Re: alternative notehead style breaks cross-staff stem
Am 14.11.2016 um 14:43 schrieb Urs Liska: > The next step would be to have two notes connect their stems when *not* > in different staves, e.g. Never mind, I have found out how to generate my stuff as a chord. Urs ___ lilypond-user mailing list lilypond-user@gnu.org https://lists.gnu.org/mailman/listinfo/lilypond-user
Re: alternative notehead style breaks cross-staff stem
Am 14.11.2016 um 14:43 schrieb Urs Liska:
>
> Am 13.11.2016 um 21:44 schrieb Thomas Morley:
>> 2016-11-13 15:45 GMT+01:00 Urs Liska :
>>> Hi all,
>>>
>>> I'm trying to build something like similar to an automated harmonic
>>> display on two staves, and it seems that alternative note head styles
>>> break the cross staff stems:
>>>
>>> ...
>> Hi Urs,
>>
>> cross-staff Stems are only printed if certain conditions are fullfilled.
>> One of them is the Stem's left edge are within a range 0.001
>> -> `close-enough?' in music-functions.scm
>>
>> In a recent thread I developed `pushNC' to force the Stems doing so.
>> http://lists.gnu.org/archive/html/lilypond-user/2016-11/msg00230.html
>>
>> Works here as well:
>>
>> ...
>>
>> HTH,
>> Harm
> Thank you, this indeed works well for my purpose, I'll soon share the
> results.
>
> The next step would be to have two notes connect their stems when *not*
> in different staves, e.g.
>
> \new Staff {
> <<
> {
> \voiceOne
> g''4 -\harmonic
> }
> \new Voice {
> \voiceOne
> c'4
> }
> >>
> }
>
> It seem crossStaff doesn't support this. But OTOH it may be simple to
> calculate the lower stem's length in this case (as opposed to real cross
> staff where you don't know the staff distance).
>
> Urs
For reference and for the curious the current state of the result can be
seen here:
https://github.com/openlilylib/ji/blob/ee00de2701a5921d63237b5b40702247c7dc5183/display.ily
The package this is in is not actually usable yet as it's still a
construction site. But there will be proper example files available and
the paper for which I'm actually doing this right now.
As a first impression the attached output is generated from the
following input (using the package) (note that the constant change of
display options is not what one would do in real-world scores but
intends to show how the output con easily be configured and reconfigured):
\score {
<<
\new PianoStaff <<
\new Staff = "one" {
s1*2
}
\new Staff = "two" {
\clef bass
\setOption ji.show.notehead-style #'harmonic
\setOption ji.show.ratio ##t
\setOption ji.show.cent ##t
\jiNote c, 2 7/1
\setOption ji.show.ratio ##f
\jiNote 4 6/1
\setOption ji.show.ratio ##t
\setOption ji.show.cent ##f
\setOption ji.conf.use-cross-staff ##f
\jiNote 5/1
\change Staff = "one"
\jiNote c' 2 7/4
\setOption ji.show.cent ##t
\setOption ji.show.ratio ##f
\jiNote d' 3/2
}
>>
>>
}
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