I see that my question has been asked before: http://lists.gnu.org/archive/html/lilypond-user/2010-06/msg00127.html
in the more challenging environment where the notes are also being typeset. That was four years ago, and no answer to the equal-measure-width question was given. I would be happy to hack some scheme code to force a constant measure width, at least for this simple case where there are just a few chord symbols per bar and the user is prepared to make the symbols small enough to fit the bars. But I would very much appreciate someone pointing me to the relevant area of code, if it sounds feasible... Richard On Fri, 2014-08-29 at 15:36 +0100, Richard Shann wrote: > On Fri, 2014-08-29 at 16:00 +0200, Jacques Menu wrote: > > Hello Richard, > > > > \set Score.bars-per-line-engraver '(4)) > Thanks - > I can't get that to compile, and indeed I can't track down > bars-per-line-engraver in the 2.18 docs, but I see it in snippets (see > below). > This anyway appears to address the question of avoiding manually > inserting the line breaks, which will be nice, but the question I am > asking is how to force equal bar lengths (in mm) across the line, so > that bar lines will align down the page. > > This doesn't have to avoid collisions in conventional scores - it is > just for chord charts. > > Below is the snippet I found defining a bars-per-line-engraver thing, > FWIW > Richard > #(define ((bars-per-line-engraver bar-list) context) > (let* ((working-copy bar-list) > (total (1+ (car working-copy)))) > `((acknowledgers > (paper-column-interface > . ,(lambda (engraver grob source-engraver) > (let ((internal-bar (ly:context-property context > 'internalBarNumber))) > (if (and (pair? working-copy) > (= (remainder internal-bar total) 0) > (eq? #t (ly:grob-property grob 'non-musical))) > (begin > (set! (ly:grob-property grob > 'line-break-permission) 'force) > (if (null? (cdr working-copy)) > (set! working-copy bar-list) > (begin > (set! working-copy (cdr working-copy)))) > (set! total (+ total (car > working-copy)))))))))))) > > > > > > > JM > > > > Am 29.08.2014 um 13:20:57 schrieb Richard Shann <rich...@rshann.plus.com>: > > > > > I have been developing LilyPond code to enable the generation of "Chord > > > Charts" such as the one attached here. > > > They differ from conventional music notation by being short, comprising > > > only Chord Symbols with one or two chord durations, and, ideally, a > > > fixed measure spacing, usually four to a line. > > > Various tweaks have been applied in this example to suit very small > > > displays. > > > The remaining outstanding difficulty is controlling the measure width - > > > ideally all the bar lines would align vertically down the screen (the > > > chord symbols would be made smaller if they didn't fit). > > > I have set > > > > > > \set Score.proportionalNotationDuration = #(ly:make-moment 1/4) > > > > > > which helps make the measures more even in width, but not entirely. > > > > > > Can anyone suggest something that would essentially turn off the fancy > > > spacing algorithms that are running? Or perhaps point me to some scheme > > > code governing the spacing which I could tweak? > > > > > > Richard > > > > > > > > > > > > <AsTimeGoesByV2.ly><AsTimeGoesBy.png>_______________________________________________ > > > lilypond-user mailing list > > > lilypond-user@gnu.org > > > https://lists.gnu.org/mailman/listinfo/lilypond-user > > > > > > _______________________________________________ > lilypond-user mailing list > lilypond-user@gnu.org > https://lists.gnu.org/mailman/listinfo/lilypond-user _______________________________________________ lilypond-user mailing list lilypond-user@gnu.org https://lists.gnu.org/mailman/listinfo/lilypond-user
