Re: Two questions concerning ossias

[Nick Payne]

On 13/07/10 11:51, Nick Payne wrote:
> This ossia just extends for part of a bar:
>
> << { g'32_( fis) e_( fis) }
>         \new Staff \with {
>             alignAboveContext = #"guitar"
>             fontSize = #-4
>             \override StaffSymbol #'staff-space = #(magstep -4)
>             \override StaffSymbol #'thickness = #(magstep -4)
>             \remove "Time_signature_engraver"
>             explicitKeySignatureVisibility = #end-of-line-invisible
>         }
>         {
>             \key g \major
>             \clef "treble_8"
>             \stemUp \slurDown
>             { \times 4/5 { fis32( g fis) e( fis) } }
>         } >>
>
> 1. How can I move the ossia stave up slightly so that it isn't 
> contacting the beam of the 32nd notes in the main stave?
>
> 2. Is it possible to put a vertical dotted/dashed line at the 
> beginning of the ossia from the bottom of the main stave to the top of 
> the ossia stave?
Well to answer my own question, I used a couple of hacks. (1) by putting 
a blank markup below the ossia stave, and (2) with some Postscript and 
trial and error with the values:

#(define ossialine "0.07 setlinewidth [0.85 0.25] 0 setdash -1.7 2.9 
moveto 0 -11.5 rlineto stroke")

<< { <g'-4>32_( <fis-2>) <e-0>_( fis) }
        \new Staff \with {
            alignAboveContext = #"guitar"
            fontSize = #-4
            \override StaffSymbol #'staff-space = #(magstep -4)
            \override StaffSymbol #'thickness = #(magstep -4)
            \remove "Time_signature_engraver"
            explicitKeySignatureVisibility = #end-of-line-invisible
        }
        {
            \key g \major
            \clef "treble_8"
            \stemUp \slurDown
            { \times 4/5 { fis32_\markup { \postscript # ossialine }( 
g_\markup { " " } fis) e( fis) } }
        } >>

ossia.png
Description: PNG image