Hi Abraham, Am 17.01.2017 um 16:41 schrieb Abraham Lee: > Hi, Urs! > > On Tue, Jan 17, 2017 at 8:26 AM, Malte Meyn <[email protected] > <mailto:[email protected]>> wrote: > > > > Am 17.01.2017 um 11:43 schrieb Urs Liska: > > I don't find the appropriate property to modify the distance between > > secondary stems. Attached you'll find the result of \override > > Beam.beam-thickness = 0.15, and I need to adjust the beams to be > closer > > together, e.g. to 0.5 staff spaces. I don't see any promising > properties > > in Beam and Beam Interface. > > It’s Beam.gap or Beam.beam-gap or something similar. > > > I'm not sure why the calculation for this is so convoluted. Perhaps > studying the source code more would enlighten me. Anyways, the > property you are looking for is 'length-fraction. The relation to beam > spacing depends on the number of beams, as described in the function > get_beam_translation, line 114 of lily/beam.cc. > > The basic equation goes like this: > > if beam_count < 4: > beam_dy > = (2 * staff_space * fract + line * fract - beam_thickness) / 2.0 > else: > beam_dy = > (3 * staff_space * fract + line * fract - beam_thickness) / 3.0 > > As a reference, this means that the beam gap, IIUC, for a > beam-thickness of 0.48 (the default) and length-fraction of 1.0, is > about 1/3 of a staff-space for beam-count<4 (but I haven't taken any > actual measurements to confirm this).
Thank you very much. This is indeed one more example of LilyPond's problematic documentation of properties. It is *not* mentioned on the Beam page, only for beam-interface, and "Multiplier for lengths. Used for determining ledger lines and stem lengths." is not really helpful and definitely doesn't help me finding it's useful for my question ... Best Urs > > HTH, > Abraham > > > _______________________________________________ > lilypond-user mailing list > [email protected] > https://lists.gnu.org/mailman/listinfo/lilypond-user -- [email protected] https://openlilylib.org http://lilypondblog.org
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