On 1 August 2010 09:40, Mike Solomon <mike...@ufl.edu> wrote:
> I'm working on a piece where the thickness of a text spanner represents
> playing intensity, and in writing it, I'm realizing that the thickness of
> text spanners has an effect on their X extents (see the minimal example
> below). This is due (I think) to the round-cap line ending. I would gladly
> use non-rounded lines so that they stop consistently at the same horizontal
> spot independent of their thickness. Before I dive into my git repository
> to cobble together a solution, if any of you know a way to get around this
> problem by standardizing the horizontal lengths of text spanners, I'd
> appreciate it!
I think the simplest way around this is to emend the drawing routine
to remove the round-cap ending.
Unfortunately, the extent box assumes the line's rounded, so there's a
hard-coded widening in line-interface.cc. Your best bet is to change
the default X-extent callback to remove it:
\override TextSpanner #'X-extent =
#(lambda (grob)
(let ((thick (* (ly:grob-property grob 'thickness)
(ly:staff-symbol-line-thickness grob)))
(ext (ly:grob::stencil-width grob)))
(interval-widen ext (/ thick -2))))
Cheers,
Neil
_______________________________________________
lilypond-user mailing list
lilypond-user@gnu.org
http://lists.gnu.org/mailman/listinfo/lilypond-user
