2017-03-27 11:38 GMT+02:00 Urs Liska <u...@openlilylib.org>: > Hi all, > > I want to know if a given notehead has a stem attached. Obviously even > whole notes do have a stem object, but with zero extent. > > I've found the following calculation to be reliable, but I can't imagine > it has to be so complicated: > > (if (or (= +inf.0 (car stem-y-extent)) > (= -inf.0 (car stem-y-extent)) > (= +inf.0 (cdr stem-y-extent)) > (= -inf.0 (cdr stem-y-extent))) > > (with stem-y-extent being the Y-extent property of the stem object). > > I think there should be some property I can ask directly about this? But > I didn't find any suspicious entry for Stem or stem-interface. > > Any suggestions? > Urs
interval-sane? exp.: (interval-sane? (ly:stencil-extent empty-stencil X)) --> #f Maybe grob::is-live? may help as well, didn't test that. HTH, Harm _______________________________________________ lilypond-user mailing list lilypond-user@gnu.org https://lists.gnu.org/mailman/listinfo/lilypond-user