On Thu, Feb 14, 2008 at 4:26 PM, Mats Bengtsson <[EMAIL PROTECTED]>
wrote:
> Trevor Bača wrote:
>
> > OK, I was confusing dynamics and text scripts. For text scripts this
> > baseline alignment is very cool. But for dynamics what I'm actually
> > looking for is *center* alignment in the vertical direction (rather
> > than *baseline* aligment). In other words, in Kieren's example above,
> > my preference is to see the p and f center aligned *as though the p
> > were the beginning of a crescendo and the f were the end*.
> >
> > Is there such a trick for *center* alignment of dynamic marks??
>
> Actually, as long as the dynamics belong to the same
> DynamicLineSpanner, i.e. a sequence of absolute dynamics,
> hairpins and/or cresc/decresc with not gaps inbetween them,
> then this is exactly what you get by default. If you want it
> also for dynamics that are separated by some notes so that
> they don't belong to the same DynamicLineSpanner, then
> you can use exactly the same trick. I just increased the default
> value of the staff-padding and kept the default center alignment
> of each DynamicText in relation to its DynamicLineSpanner:
>
> \version "2.10.33"
>
> \paper { indent = 0 line-width = 2\in }
>
> music = \relative c''
> {
> c2\p^\markup { "gorgeous" } c\f^\markup { "fantastic" }
> c4\p c \f \> c c \! \p
> }
>
> \score
> {
> {
> \music \break
>
> \override DynamicLineSpanner #'staff-padding = #2.0
> \override DynamicLineSpanner #'Y-extent = #'(-1 . 1)
> \override TextScript #'Y-extent = #'(-1 . 1)
> \music
> }
> }
>
OK, that's now officially brilliant. Mats, thanks so much (as usual). And
entire .scm file I have sitting in my score directory can now vanish thanks
to this single setting -- DynamicLineSpanner #'Y-extent. Excellent.
At the risk of belaboring the point, I'm having trouble understanding *why*
this works. Here's an absolutely minimal example:
%%% TURNING ON Y-EXTENT %%%
\version "2.11.39"
\layout { ragged-right = ##t }
\new Staff {
\override DynamicLineSpanner #'staff-padding = #4
c'2 \p
c'2 \f
}
\new Staff {
\override DynamicLineSpanner #'staff-padding = #4
\override DynamicLineSpanner #'Y-extent = #'(0 . 0)
c'2 \p
c'2 \f
}
%%% END %%%
In the first case we get usual (top-aligned) behavior; in the second case we
get this excellent (center-aligned) behavior. The only difference is that
the second example overrides DynamicLineSpanner #'Y-extent. But notice that
the actual pair of values passed to DynamicLineSpanner #'Y-extent doesn't
seem to matter because #'(0 . 0) and #'(1 . -1) and in fact #'(10 . -10) all
provide this nifty center alignment.
So what's going on here? It seems that merely "turning on"
DynamicLineSpanner #'Y-extent is enough to induce vertical center alignment,
regardless of the actual value. Is this a good way to conceptualize what's
happening here? If so, that's quite an implicit (hidden, even) principle ...
ie, that turning on Y-extent switches the origin of alignment from top to
center.
--
Trevor Bača
[EMAIL PROTECTED]
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