On 2010-07-13 16:48, Arle Lommel wrote:
Line height for lyrics (at least in 2.13.24) is determined by the
postscript bounding box for the characters in the line (or at least
that's what it seems), *not* the em-square, which is the basic unit
for almost all typographic measurements. This means that if a line
has no descenders (j, p, or y), it loses height at the bottom [...]
Similarly, if the line contains no ascenders [...], the spacing
between lines is figured from the x-height of the text rather than
the cap height. [...]
I would argue that the layout engine should work based on the
em-square of the font, which would result in consistent and
predictable spacing. The way it is in 2.13.24 though is essentially
unpredictable since you can’t know what the output is unless you know
in advance what the lyrics text will be.
[still not on -bug for the moment]
+1, though the workaround by specifying VerticalAxisGroup
'inter-loose-line-spacing 'minimum-distance is easy and straightforward
once you know it. There also was a discussion about the optimal value
on the LilyPond-devel mailing list a few months ago:
<http://old.nabble.com/%28bug-%29-irregular-lyrics-distance-in-2.13.10-td27145106.html>.
Not sure though whether Joe pushed the value of 3.2 we seemed to agree
on. Joe?
In addition, there's something I always wondered about - why is a
special markup used as the LyricHyphen? Doesn't it make more sense to
just use the ordinary "-" of the LyricText font? Even if nothing else,
it'd make workarounds for repeated hyphens, using a manual "- syllable"
text, look better. For now, neither height nor strength of the dash
correspond to the "-".
Cheers,
Alexander
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