On Fri, Feb 6, 2015 at 1:20 PM, Pierre Perol-Schneider < pierre.schneider.pa...@gmail.com> wrote:
> As english isn't my native language I'm not sure to find the right words. > Manual says it "computes the width of an object" (see: > http://lilypond.org/doc/v2.19/Documentation/extending/callback-functions.html > ). > With "my" words I'd say that it'll help you to add or reduce the space > before and/or after a grob. > > Cheers, > Pierre > > 2015-02-06 20:08 GMT+01:00 James Worlton <jworl...@gmail.com>: > >> Thanks, Pierre. That's exactly what I'm looking for. So what does the >> ParenthesesItem X-extent do? >> >> James W >> >> On Fri, Feb 6, 2015 at 12:49 PM, Pierre Perol-Schneider < >> pierre.schneider.pa...@gmail.com> wrote: >> >>> Hi James, >>> >>> I understand the idea but I thing you missunderstand the X-extent effect. >>> If I follow you, you'd rather extent the note head. >>> So here it goes : >>> >>> \version "2.19.15" >>> >>> parenWider = { >>> \once\override NoteHead.X-extent = #'(-1.5 . 1.3) >>> \once\override Accidental.X-extent = #'(1.5 . 0) >>> \once\override Accidental.extra-offset = #'(1.5 . 0) >>> } >>> >>> \score { >>> \new Staff { \parenWider \parenthesize fis'4 } >>> } >>> >>> HTH, >>> Pierre >>> >> Thanks for pointing that out. I think I understand it. A problem I've now encountered is that the 3 overrides in your solution make ledger lines longer towards the accidental. Neither of the overrides I've tried adding to the parenWider definition make any difference: \once \override Staff.LedgerLineSpanner.X-extent = #'(1.5 . 0) %various values, both positive and negative have no effect or \once \override Staff.LedgerLineSpanner.length-fraction = 0.1 %various values, both positive and negative have no effect Is there something I'm missing regarding how to override ledger lines? James W
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