Distance of grob to barlines
Can anybody kindly point me to code examples showing how to find the distance of a grob to its nearest enclosing barlines, in Scheme? >From what I can gather, it’s not a simple function call, but involves some >processing of column arrays, which I can’t find documentation on. Andrew ___ lilypond-user mailing list lilypond-user@gnu.org https://lists.gnu.org/mailman/listinfo/lilypond-user
Re: Distance of grob to barlines
Hi Andrew, On Fri, Aug 21, 2015 at 6:51 PM, Andrew Bernard wrote: > Can anybody kindly point me to code examples showing how to find the > distance of a grob to its nearest enclosing barlines, in Scheme? > I don't know of any examples out there, be this will do it. This uses the horizontal coordinate of the grob and barline as a simple demonstration. Depending on what precisely you mean by "distance" (right edge to left edge, left edge to right edge, etc.) you may want to use ly:grob-extent. HTH, David %% \version "2.19.23" #(define (distance-to-nearest-barline dir) (lambda (grob) (let* ((refp (ly:grob-system grob)) (all-elts (ly:grob-array->list (ly:grob-object refp 'all-elements))) (barlines (filter (lambda (elt) (grob::has-interface elt 'bar-line-interface)) all-elts)) (me-pos (grob::rhythmic-location grob)) (pred? (if (= LEFT dir) rhythmic-location>=? rhythmic-location___ lilypond-user mailing list lilypond-user@gnu.org https://lists.gnu.org/mailman/listinfo/lilypond-user
Re: Distance of grob to barlines
On Sat, Aug 22, 2015 at 11:55 AM, David Nalesnik wrote: > Hi Andrew, > > On Fri, Aug 21, 2015 at 6:51 PM, Andrew Bernard > wrote: > >> Can anybody kindly point me to code examples showing how to find the >> distance of a grob to its nearest enclosing barlines, in Scheme? >> > > I don't know of any examples out there, be this will do it. > > This uses the horizontal coordinate of the grob and barline as a simple > demonstration. Depending on what precisely you mean by "distance" (right > edge to left edge, left edge to right edge, etc.) you may want to use > ly:grob-extent. > That is, instead of ly:grob-relative-coordinate. ___ lilypond-user mailing list lilypond-user@gnu.org https://lists.gnu.org/mailman/listinfo/lilypond-user
