Janek Warchoł wrote Friday, September 09, 2011 7:20 AM


2011/9/9 Keith OHara <[email protected]>:

Trevor Daniels <t.daniels <at> treda.co.uk> writes:

It seems the horizontal spacing is slightly dependent on the stem
direction.

This spacing was intentional, including the spacing adjustment
between stems and bar lines :
<http://lilypond.org/doc/v2.14/Documentation/essay/engraving-details#optical-
spacing>

What i find most fascinating is the fact that there is also a
correction for stem-barline spacing at the beginning of the measure, but it's a bit smaller than the correction at the end of the measure.
See attached.

Yes, this seems to be the cause of the discrepency in length
of my original example, which was symmetrical in the notes
at the beginning and end of each measure.  The values of
'stem-spacing-correction in NoteSpacing and StaffSpacing
affect the spacing between the bar lines and the first
and last notes respectively, and the values and mechanisms
are different.  I guess we need to understand why these are
different and what other effects they have before raising a bug
report.

Also strangely, no optical correction is applied to first and
last minims (half notes) in a measure, and this definitely looks
wrong.

Trevor



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