Hi, On Fri, Feb 13, 2015 at 6:07 AM, Pierre Perol-Schneider < pierre.schneider.pa...@gmail.com> wrote:
> Hi Joram, > > Two things : > 1) Ottava_spanner_engraver is part of the Staff context, see : > http://lilypond.org/doc/v2.18/Documentation/internals/ottava_005fspanner_005fengraver > 2) for some reason LP spanners cannot reproduce dotted lines such as the > one your looking for. > LilyPond draws both dotted lines and dashed lines using code for drawing dashed lines. This sounds irrational, but it makes sense in that a dot is simply a dash where the line part has no length, but the rounded end-cap of the line (a superimposed circle) appears. Whenever you set style to 'dotted-line, the dash-fraction gets set to 0 automatically. The problem is that line-thickness is getting added into the mix. Thus, in your original snippet, by setting thickness to 2, the program ends up drawing a short line in addition to the rounded end caps. Of course, if you set thickness to 0, nothing appears--the end-cap has diameter of 0, too. (See https://code.google.com/p/lilypond/issues/detail?id=4103 for a related discussion.) This is definitely a problem. It doesn't look like this should be too hard to fix. (Famous last words.) I'll see about making a patch. --David
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