Comment #10 on issue 984 by [email protected]: Noteheads don't merge when one of
the voices contains a second
http://code.google.com/p/lilypond/issues/detail?id=984
Hi Keith,
Mike has expressed his willingness to let me take this issue over and "do
it my way". My personal take is to conceptually take both stems and move
them across each other horizontally, recording all constellations
that "make sense".
This might even mean merging noteheads on the "secondary" stem. If you
take a look at the stem code, you'll notice that the reflection is not
actually symmetric. So even while vertical and horizontal positions are
measured in different units and not considered at the same time, the
horizontal positions are needed accurately, and the pairing of horizontal
and vertical position should be maintained.
That is a part of Mike's patch that makes perfect sense to me. Now the old
code and Mike's addition are as a combination just too complex for me to
feel good about them, in particular since the preexisting part makes
assumptions about how seconds are arranged. That's not good since it means
that the stem code is not free to be changed without repercussions on the
stem merger's assumptions.
So I'll try coming up with something new tomorrow, with the overall goal of
reducing rather than increasing the amount of code lines, and hopefully
with fewer exceptions.
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