Juergen Reuter wrote:
Hi, Till!
My personal experience is that you have to fine tune the glyphs
anyway; hence, determining just a few coordinates should suffice (this
can be easily done manually if you have a really big printout of the
scan).
Do you mean by using xfig or inkscape or by defining the metafont source
directly?
For each glyph, a charbox must be specified, such that lily knows how
wide/high the glyph is. In practice, a glyph may stick out of the
charbox (even though you probably should have a good reason to do
so). In this case, I think sticking out glyphs could be useful; see
attached drawing (suppose that the blue curve represents the stem, the
red curve the flag, and the dotted lines the corresponding
(simplified) charboxes).
Yes, I understood this, I didn't mean though to have a diagonal stem,
just that the stemform without flag should look different to the one
with flag
However, as far as I know, stems are currently drawn dynamically by
just creating rectangles on the fly, rather than outputting a fixed
glyph. The reason for doing so is that the actual stem length in
general depends on a lot of other things, and therefore there is no
fixed stem glyph.
Oh, this sounds logicalt, but I think for the ancient notation there is
no need to have different lenghts -- well, lets put it that way: in
petrucci prints there *is* no different length, and in manuscripts
naturally there is one. But it doesn't seem to differ that much as in
modern notation mainly due to the fact that there are no beams.
I guess the stem printing code in lily/stem.cc would need to be
slightly revised to enable printing of stem glyphs. Or, even better,
if you could express the stem by a polygonal shape and, given a stem
length, devise a method for determining this polygonal shape's
coordinates, then polygonal stems could be drawn on the fly in
lily/stem.cc, analogous to the rectangular stems that we currently have.
This sounds like an idea -- just as I said it: I think for stems there
would be some kind of polygonal form usefull while for stems that have
flags the form should again be rectangular. But anyways, I will first
start the font and then think of inserting it into lilypond.
And still the idea about introducing some variability to mimick the
handscribe, that is to have about four or five slightly different
glyphs that would be used in arbitrary order. Is something like this
possible in lilypond?
Should be basically possible, if you modify lily/stem.cc accordingly.
However, I guess the result would not look beautiful, since the
"arbitrariness" of hand-writings actually comprehends a very complex
process of balancing unevenness; I fear that simulating this process
based on just some random numbers will not work well.
Yes, this might well be. Mainly my concern was that the glyphs shouldn't
bee too "clean" and "smooth" looking, but this can well be done with
only one glyph form.
Thank you very much so far for your answers!
Till
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