Re: Vertical spacing for fixed y-offset of systems *calculated from top staff line*?

[Trevor Bača]

2011/5/25 Carl Sorensen <address@hidden>

On 5/25/11 4:27 PM, "Trevor Bača" <address@hidden> wrote:

> Hi,
>
> I'm looking to vertically lay out systems in a very rigid and regular way.
> (This is the method I documented a while back in 4.4.2 'Explicit staff and
> system positioning' using the Y-offset and alignment-distances attributes of
> line-break-system-details.) The challenge is that this method produces
> different visual results than it used to now that the new vertical spacing
> code has been added into the system. Examples are the easiest way to show the
> difference.
>
>

> It would appear that what's going on here is that Lily's assessment of what
> counts as the topmost edge of a system has changed over time: previously, the
> Y-offset attribute of line-break-system-details applied to the top staff line
> of the topmost staff in a system; now, the Y-offset attribute of
> line-break-system-details applies to the outermost envelope (skyline?) of the
> system. This makes sense. But I would really like to be able to reproduce the
> utterly regular vertical spacing of my previous scores using current versions
> of Lily.
>
> Is there any way to achieve the vertical layout of systems that I'm looking
> for with modern versions of Lily?

I couldn't get your examples to compile, so I couldn't test them.

I think you want to set top-system-spacing and system-system-spacing with a
'stretchability of 0, which will place the system at a fixed location,
regardless of the notes present.

Hi Carl,

So I tried the following ...

%%% EX 3 %%%

\version "2.13.61"

\paper {
   evenHeaderMarkup = \markup \fill-line { " " }
   indent = #0
   oddHeaderMarkup = \markup \fill-line { " " }
   top-margin = 20\mm
   system-system-spacing = #'(
      (basic_distance . 0) (minimum_distance . 0) (padding . 0) (stretchability . 0))
   top-system-spacing = #'(
      (basic_distance . 0) (minimum_distance . 0) (padding . 0) (stretchability . 0))
}

\new Staff {

   %%% PAGE 1 %%%%

   \overrideProperty #"Score.NonMusicalPaperColumn"
   #'line-break-system-details #'((Y-offset . 0))
   c'1 \pageBreak

   \overrideProperty #"Score.NonMusicalPaperColumn"
   #'line-break-system-details #'((Y-offset . 0))
   c''''1

}

%%% END EX 3 %%%

... but the output appears to be the same as example 1. (Ie, the settings appear to have no effect.)

Is there perhaps a mistake in my top-system-spacing and system-system-spacing settings?

(And apologies for the miscompilation of exx 1 & 2; I just tried cutting and pasting from the thread on my end and they seem to compile ok, which is odd.)


Trevor.



-- 
Trevor Bača
address@hidden