2012/3/11 David Kastrup <d...@gnu.org>:
> Thomas Morley <thomasmorle...@googlemail.com> writes:
>
>> Hi Nick,
>>
>> 2012/3/9 Nick Payne <nick.pa...@internode.on.net>:
>>
>>> Thanks. I gave it a try. The one shortcoming I've found is that the ends of
>>> LV ties on a chord containing a second no longer align.
>>
>> That's because "factor" is used in a multiplication. An easy fix would
>> be to change that to an addition. But now a new problem arises: If you
>> use customised staff-sizes the length isn't scaled accurate. For
>> smaller staffs the LaissezVibrerTie should be still smaller and for
>> greater staffs still greater.
>> Currently I don't know how to make it better.
>
> You can get the system grob (ly:grob-system) from the tie, and then base
> your additional size on some dimension calculated from that in some
> manner.
>
> --
> David Kastrup
Hi David,
thanks for the hint, it let me rethink the definition.
Now I've done it a little different and currently I see no drawback.
Well, one could argue about the values, but that's another question ...
\version "2.14.2"
#(define adding 1.5)
#(define (enlarged-extent-laissez-vibrer::print grob)
(let* ((ssymb (ly:grob-object grob 'staff-symbol))
(staff-space (ly:grob-property ssymb 'staff-space))
(adding-factor (if (null? staff-space)
1
(expt staff-space 2)))
(stil (laissez-vibrer::print grob))
(stil-ext (ly:stencil-extent stil X))
(stil-length (interval-length stil-ext))
(new-stil-length (+ stil-length (* adding-factor adding)))
(scale-factor (/ new-stil-length stil-length))
(new-stil (ly:stencil-scale stil scale-factor 1))
(new-stil-ext (ly:stencil-extent new-stil X))
(x-corr (- (car stil-ext) (car new-stil-ext))))
(ly:stencil-translate-axis
new-stil
x-corr
X)))
#(assoc-set! (assoc-ref all-grob-descriptions 'LaissezVibrerTie)
'stencil enlarged-extent-laissez-vibrer::print)
music = \relative c' {
<c e g c>\laissezVibrer s s s
<d c f,>\laissezVibrer s s s
}
\new StaffGroup
<<
\new Staff \with { fontSize = #-3
\override StaffSymbol #'staff-space = #(magstep -3)
\override StaffSymbol #'thickness = #(magstep -3) }
\music
\new Staff
\music
\new Staff \with { fontSize = #3
\override StaffSymbol #'staff-space = #(magstep 3)
\override StaffSymbol #'thickness = #(magstep 3) }
\music
>>
Thanks,
Harm
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