On 04/29/2015 12:04 PM, Pierre Perol-Schneider wrote:
Hi Kieren, Hi Carl,
I don't think that a standard scaling will help in this case.
Here's an illustration of what could happened :
\markup {
\combine
\with-color #magenta
\scale #'(1.2 . 1.2)
\musicglyph #"clefs.G"
\musicglyph #"clefs.G"
}
Whatever glyph re-centering, you'll never get a proper whiteout.
One has to define a specific scaling function that can "blows" the glyph
in order to get a bold one.
Correct. You need an offset (effectively a white stroke around all
boundary curves) of whatever is rendered, and I think this should not be
done with Lilypond inspecting the shape, but rather something on the
lower level. A minute of googling brought me to the following page,
which nicely shows some difficulties, and illustrates why it requires
significant effort:
http://tavmjong.free.fr/blog/?p=1257
I know that boldsymbol or something similar in LaTeX uses (used?) a
bunch of copies of the same symbol with a slight translation each time,
but that's 1. conceptually ugly and 2. prone to break for really thin
lines, so I would not recommend to go this route.
I guess there might be a way to encode such a thing in PostScript? But
even if there is a simple shortcut, I don't whether it can be applied to
arbitrary stencils...
Best,
Alexander
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