Trevor Daniels wrote Friday, June 26, 2009 7:32 AM
Carl D. Sorensen wrote Wednesday, June 17, 2009 9:21 AM
On 6/16/09 1:51 PM, "Mark Polesky" <[email protected]> wrote:
Trevor, could you add a bit to your recent LM 4.3.1 patch about
empty-stencil and point-stencil? They are suitable substitutes
for
#'stencil = ##f.
\override <grob> #'stencil = #empty-stencil
\override <grob> #'stencil = #point-stencil
See
http://lists.gnu.org/archive/html/lilypond-devel/2009-06/msg00332.html
for a very recent discussion. I actually don't fully understand
the subtleties of discerning when one is more appropriate than
the other, but it sounds like you might!
I don't understand why empty-stencil has a non-zero extent; that
means it
takes up space.
I should have added this to my earlier mail, and I also
forgot to cc the list (well, it is early):
empty-stencil is defined in define-markup-commands.scm as:
(define-public empty-stencil (ly:make-stencil '() '(1 . -1) '(1
. -1)))
Normally a left extent of 1 would be truncated to 0 and
a right extent of -1 to 0, but this doesn't seem to
happen. I don't understand why. Its effect is not as
expected, at least not when used on NoteHead, which is
why I used point-stencil.
I believe that point-stencil should be used to replace ##f,
because we want
to take up no space, and point-stencil has zero extent.
Yes; I used point-stencil in the example when I changed LM 4.3.1.
Trevor
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