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List:       lilypond-user
Subject:    Re: Harp glissandi
From:       Torsten_Hämmerle <torsten.haemmerle () web ! de>
Date:       2018-11-22 11:15:32
Message-ID: 1542885332235-0.post () n5 ! nabble ! com
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Sorry,

I should have mentioned that the coordinates of the rotational centre are
relative to the Glissando extents.

x coordinate 0 means its centre, -1 means its left end and 1 means its right
end:


%%%%%%%%%%%%
\version "2.19.82"
{
  \override Glissando.rotation = #'(30 0 0)
  <>^"centre"
  c''4 \glissando s s c''
  \override Glissando.rotation = #'(30 -1 0)
  <>^"left"
  c''4 \glissando s s c''
  \override Glissando.rotation = #'(30 1 0)
  <>^"right"
  c''4 \glissando s s c''
}
%%%%%%%%%%%%

<http://lilypond.1069038.n5.nabble.com/file/t3887/glissando-rotational-centre.png> 

By rotating around the left end, the vertical starting point will be
retained.
Rotating around the right end, the vertical ending point will be retained.
No matter how long the particular glissando actually is.

HTH,
Torsten





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