Re: Horizontal spacing depends on stem 'direction

[Trevor Daniels]

Keith OHara wrote Friday, September 09, 2011 8:32 PM


> On Fri, 09 Sep 2011 01:34:30 -0700, Trevor Daniels 
> <address@hidden> wrote:
>
> >  The values of
> > 'stem-spacing-correction in NoteSpacing and StaffSpacing
> > affect the spacing between the bar lines and the first
> > and last notes respectively, and the values and mechanisms
> > are different.  I guess we need to understand why these are
> > different and what other effects they have before raising a bug
> > report.
>
> The correction just after a bar-line (the one in StaffSpacing)
> only adds space, never removes space.
>
> This difference is explicit enough in the code that I would guess
> it was intentional.  Whether it is desired is a different 
> question.
> The code references Helene Wanske's book Musiknotation.  Speaking
> as a violist, I think it is easier to keep place in repetitive
> music when there is a bit of variation in spacing.

I'm not really concerned enough about this to investigate
it further.  It arose out of my investigations of Mike's
5917046 patch (which _is_ affected by the stem direction)
and threw me off the scent for quite a while.  If no one
else is bothered let's just leave it.

> > Also strangely, no optical correction is applied to first and
> > last minims (half notes) in a measure,
>
> Check again.  It is for me, so long as the line is ragged-right.

You're right.  I had ragged-right, but the example I used by
chance fitted a line rather tightly.  Under those conditions
it seems the optical correction is suppressed, or if it is
applied it is applied equally before and after a bar line.

Trevor