Hi David,
I'm sorry for the confusion and all your hard work, but the question has
been answered already:
Voices and Threads have to have names like 'one', 'two', etc.
This solved the problem completely, strange huh?
greetings,
arie
On Wed, 2003-06-25 at 00:49, David Boersma wrote:
> Hello Arie,
>
> I tried out your example, with lily 1.6.10, and changed the octaves. I
> agree that it looks like a bug. But in my view the problem is not so much
> with the stems but more with the flags/beams of the last notes (eighths)
> which are printed double, making them look like a sixteenth note (maybe
> this is what you actually meant to say).
>
> I did some more experiments:
>
> If I change one of the d notes (the second notes of both threads) into a b
> then the problem goes away, and also the warning messages vanish.
>
> If, in the code with relative c' (and the second notes both on "d" again),
> I stepwise lower both last notes, then I find that the problem is still
> there with "a" in threadOne and "c" in threadTwo, but when I go one step
> lower, to "g," and "b" respectively, then the problem goes away, although
> the warning messages are still there.
>
> Then I did the same game with different clefs (G_8 and F). I found that
> when I lowered the note values of the third notes such that the highest
> one of the two was beneath the first ledger line, then the problem goes
> away. Now to the opposite side of the staff: increase the note values and
> also when you choose note values such that the lowest note is above the
> first ledger line (above the staff), the problem also goes away.
>
> So the actual note value is not determining the error behaviour, it is the
> vertical position w.r.t. the staff. If both notes are at least one ledger
> line away from the staff, then they are correctly printed. If one of them
> is closer then the flags/beams are printed doubly (*if* the previous note
> was identical in both threads).
>
> Now I hope that these descriptions are clear enough and that these are
> somehow useful diagnostics.
>
> David Boersma
>
> On 23 Jun 2003, arie-lily wrote:
>
> > I extracted the following strange behaviour in \partcombine, with this
> > snippet it works well:
> >
> > \version "1.6.10"
> > \score {
> > \context Voice = voiceOne {
> > \partcombine Voice
> > \context Thread = threadOne \notes \relative c { c8 d e }
> > \context Thread = threadTwo \notes \relative c { e8 d g }
> > }
> > }
> >
> > That is to say: ly2dvi complains about (and consecutively ignores them)
> > clashing notecolumns, but displays the music correctly.
> > However, when I change
> > \relative c
> > into
> > \relative c'
> > or
> > \relative c''
> > (of course both of them have to be changed at the same time with the
> > same amount), then the stems of the third notes are both printed.
> > I think this must be a bug, not?
> >
> > arie - just asking before filing a bug report for nothing...
> >
> >
> >
> >
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> >
>
> --
> David Boersma
>
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