Hi David, 2011/10/12 David Nalesnik <david.nales...@gmail.com>
> Hi Harm, > > (...) > (beam-positions (ly:grob-property grob 'positions)) > (beam-slant (if (> (car beam-positions) (cdr beam-positions)) -1 1)) > (orig-slope (* beam-slant (/ (- beam-length-y beam-thickness) > beam-length-x))) > > (...) > > Hope this helps! > > David > this works fine. Seems I've been a blockhead. Thanks to enlighten me. Harm
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