Re: one bar number per system
To whom it may concern, Here is what I have come up with. It does not meet my original goal, but it is good enough for now. \barNumber forces a bar number to appear at the current or next full-measure bar line. \manualBarNumbersOn should appear at the beginning of the score to set things up. A wart that catches my eye is taking the bar number from the grob text in bar-number-break-visibility callback. A useful(?) enhancement would be to make the default visibility a parameter of \manualBarNumbersOn. barNumber = #(define-music-function (parser location) () (let ((m (make-music 'ApplyContext))) (define (force-bar-number ctx) (let* ((barnum-table (ly:context-property ctx 'visibleBarNumbers))) (if (not (hash-table? barnum-table)) ; first use in this score? (begin ; create the set of visible bar numbers (set! barnum-table (make-hash-table 16)) (ly:context-set-property! ctx 'visibleBarNumbers barnum-table))) (let* ((barnum (ly:context-property ctx 'currentBarNumber)) (measurePos (ly:context-property ctx 'measurePosition)) (measureLen (ly:context-property ctx 'measureLength)) (mid-measure (and (ly:momentnumber (ly:grob-property grob 'text (if (and (hash-table? barnum-table) (hash-ref barnum-table barnum)) end-of-line-invisible begin-of-line-visible ))) (ly:context-pushpop-property ctx 'BarNumber 'break-visibility bar-number-break-visibility-callback))) (set! (ly:music-property musForCtx 'procedure) set-callback) (context-spec-music musForCtx 'Score))) -- Dan On 2 Sep 2009, at 18:51, Dan Eble wrote: Thanks for your replies. \bar allows a break, but does not force it. Ideally, I would like a bar number printed only after a break. If memory serves, the all-visible override didn't work in mid- measure for the upcoming full-measure bar line. (I do not have the time right now to override the next full-measure bar line by hand in 250 scores.) I have pieced together an experimental solution to build a hash of manually specified measure numbers, which is used by a custom barNumberVisibility function. It doesn't yet work for my multi- score book, because I based it on the table of contents implementation, so the list is global. I suppose I need to store the list of visible bar numbers in the Score context instead. Is that right? This will give me a bar number wherever I specify it, whether it is the first one after a break or not. It would be functional, but not exactly what I want. -- Dan On 2 Sep 2009, at 09:17, Trevor Daniels wrote: Mats Bengtsson wrote Wednesday, September 02, 2009 1:38 PM Trevor Daniels wrote: Does this not work when inserted immediately before the first full bar on the line? (I haven't actually tried it) \once \override Score.BarNumber #'break-visibility = #'#(#t #t #t) Why not write it as \once \override Score.BarNumber #'break-visibility = #all-visible Of course, this method works, but it requires that you manually insert it where you know that there will be a line break. Yes, I know. But since Dan is already inserting \bar "" in the places where a mid-bar break is required I wondered why he could not also insert this override before the following bar. Trevor ___ lilypond-user mailing list lilypond-user@gnu.org http://lists.gnu.org/mailman/listinfo/lilypond-user
Re: one bar number per system
Thanks for your replies. \bar allows a break, but does not force it. Ideally, I would like a bar number printed only after a break. If memory serves, the all-visible override didn't work in mid-measure for the upcoming full-measure bar line. (I do not have the time right now to override the next full-measure bar line by hand in 250 scores.) I have pieced together an experimental solution to build a hash of manually specified measure numbers, which is used by a custom barNumberVisibility function. It doesn't yet work for my multi-score book, because I based it on the table of contents implementation, so the list is global. I suppose I need to store the list of visible bar numbers in the Score context instead. Is that right? This will give me a bar number wherever I specify it, whether it is the first one after a break or not. It would be functional, but not exactly what I want. -- Dan On 2 Sep 2009, at 09:17, Trevor Daniels wrote: Mats Bengtsson wrote Wednesday, September 02, 2009 1:38 PM Trevor Daniels wrote: Does this not work when inserted immediately before the first full bar on the line? (I haven't actually tried it) \once \override Score.BarNumber #'break-visibility = #'#(#t #t #t) Why not write it as \once \override Score.BarNumber #'break-visibility = #all-visible Of course, this method works, but it requires that you manually insert it where you know that there will be a line break. Yes, I know. But since Dan is already inserting \bar "" in the places where a mid-bar break is required I wondered why he could not also insert this override before the following bar. Trevor ___ lilypond-user mailing list lilypond-user@gnu.org http://lists.gnu.org/mailman/listinfo/lilypond-user
Re: one bar number per system
Dan Eble wrote Wednesday, September 02, 2009 11:51 PM \bar allows a break, but does not force it. Ideally, I would like a bar number printed only after a break. If memory serves, the all-visible override didn't work in mid-measure for the upcoming full-measure bar line. (I do not have the time right now to override the next full-measure bar line by hand in 250 scores.) I understand; thanks. I have pieced together an experimental solution to build a hash of manually specified measure numbers, which is used by a custom barNumberVisibility function. It doesn't yet work for my multi-score book, because I based it on the table of contents implementation, so the list is global. I suppose I need to store the list of visible bar numbers in the Score context instead. Is that right? I don't know, but as Bar_number_engraver by default lives in the Score context you're probably right. Maybe Mats can help. Trevor ___ lilypond-user mailing list lilypond-user@gnu.org http://lists.gnu.org/mailman/listinfo/lilypond-user
Re: one bar number per system
Mats Bengtsson wrote Wednesday, September 02, 2009 1:38 PM Trevor Daniels wrote: Does this not work when inserted immediately before the first full bar on the line? (I haven't actually tried it) \once \override Score.BarNumber #'break-visibility = #'#(#t #t #t) Why not write it as \once \override Score.BarNumber #'break-visibility = #all-visible Of course, this method works, but it requires that you manually insert it where you know that there will be a line break. Yes, I know. But since Dan is already inserting \bar "" in the places where a mid-bar break is required I wondered why he could not also insert this override before the following bar. Trevor ___ lilypond-user mailing list lilypond-user@gnu.org http://lists.gnu.org/mailman/listinfo/lilypond-user
Re: one bar number per system
Trevor Daniels wrote: Does this not work when inserted immediately before the first full bar on the line? (I haven't actually tried it) \once \override Score.BarNumber #'break-visibility = #'#(#t #t #t) Why not write it as \once \override Score.BarNumber #'break-visibility = #all-visible Of course, this method works, but it requires that you manually insert it where you know that there will be a line break. What was requested was a method to let LilyPond automatically do this when there is a line break. /Mats ___ lilypond-user mailing list lilypond-user@gnu.org http://lists.gnu.org/mailman/listinfo/lilypond-user
Re: one bar number per system
Dan Eble wrote Tuesday, September 01, 2009 12:33 AM I would like Lilypond to print one bar number per system, except the first. The default behavior appears to be to print one bar number per system, except the first, for systems that begin at a measure break. Systems that begin in mid-measure (e.g. due to \bar "") do not get a bar number on the first bar line, and that is what I would like to change. I already use a variable \meterBreak to increase the likelihood of breaking the line at chosen places (mid-measure or not), so if there is something I could add to \meterBreak that would force the next bar line to have a number, that would be useful. Does this not work when inserted immediately before the first full bar on the line? (I haven't actually tried it) \once \override Score.BarNumber #'break-visibility = #'#(#t #t #t) Trevor ___ lilypond-user mailing list lilypond-user@gnu.org http://lists.gnu.org/mailman/listinfo/lilypond-user
one bar number per system
I would like Lilypond to print one bar number per system, except the first. The default behavior appears to be to print one bar number per system, except the first, for systems that begin at a measure break. Systems that begin in mid-measure (e.g. due to \bar "") do not get a bar number on the first bar line, and that is what I would like to change. I looked in the snippet reference, but nothing seems to fit. I do not want to use rehearsal marks if I can avoid it. I already use a variable \meterBreak to increase the likelihood of breaking the line at chosen places (mid-measure or not), so if there is something I could add to \meterBreak that would force the next bar line to have a number, that would be useful. If there is no way to get a number on the next bar, an acceptable alternative would be to print the current bar number in parentheses at the beginning of the line. I have seen how "barNumberVisibility" can be set to a function that considers a bar number and says whether or not it should be visible, but I am out of my depth trying to understand if there is any way for such a function to know if a bar number has already been printed on the current line. Thanks for any suggestions, -- Dan ___ lilypond-user mailing list lilypond-user@gnu.org http://lists.gnu.org/mailman/listinfo/lilypond-user
