Just a very uneducated guess: couldn't you make rotated copies in the font itself?
Am 19. März 2015 19:56:16 MEZ, schrieb Abraham Lee <tisimst.lilyp...@gmail.com>: >I've been collaborating with an Italian design student that created >numerous music fonts for a school project, but they aren't actually >used in >any notation program (yet), but he has agreed to work with me and take >the >steps necessary to make them usable with LilyPond. Each of his fonts >are >quite stylized and are designed to represent a different genre of >music. >The one I'm doing first is meant to imitate the feeling of the famous >Didot >(or Bodoni) text font, with lots of thick and thin elements. Anyone >seen >this before? It is his designer that they be made available for free, >licensed under the OFL. He's pretty excited to see his work get out >there. > >Before I can do this, however, there's one issue I haven't been able to >solve. The noteheads (quarter and half) are designed such that it >really >only has ONE stem attachment point (marked in orange in the attached >image). > > > > >For stems going up (right-side of image), it is the top-right point. >For >stems going down (left-side of image), the glyph must be rotated 180 >degrees so the same attachment point is now at the bottom-left where >the >stem is located. The rotation part I've been able to figure out, but it >isn't automatic yet. My question is this: how do I determine when a >particular notehead's _true_ stem attachment at that moment is going to >be >at the bottom-left so I can rotate the notehead glyph? I don't care >what >the value is, though it may be needed to determine the event, I just >want >to know _when_ it happens. I hope that makes sense. > >Here's my simple code so far: > >#(define alt-notehead > (lambda (grob) > (let* ((stil (ly:note-head::print grob)) > (newstil (ly:stencil-rotate stil 180 0 0))) > newstil))) > >Then, when I want to use it, I do: > >(\once) \override NoteHead.stencil = #alt-notehead > >When I get the 'stem-attachment property of the notehead, it always >gives >me the top-right value, regardless of where the stem is actually >attached. >I'm hoping this will work for chords, too, though I haven't >experimented >enough to know for sure. Any help is always appreciated! > >Regards, >Abraham > > >------------------------------------------------------------------------ > >_______________________________________________ >lilypond-user mailing list >lilypond-user@gnu.org >https://lists.gnu.org/mailman/listinfo/lilypond-user
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