Re: Doc: NR 4.1.2: Reorganize vertical dimensions. (issue2316042)

[markpolesky]

I've uploaded a new patch set for review, but I still have
some questions.

First, some questions for Joe Neeman:

Joe, with commit 7d410b9 (from 2009-12-17), in NR 4.4.1
"Vertical spacing inside a system - Spacing between staves",
you wrote:
  If unset, stretchability defaults to
  space - minimum-distance.

But 4 months later, with commit d701703 (2010-04-20), in
lily/spacing-basic.cc, you wrote:
  By default, the spring will have an
  inverse_stretch_strength of space+min_dist.

Is this a contradiction?  Could you confirm the default
calculation of 'stretchability?  (Unfortunately, I don't
speak C/C++).

Also, I rewrote the 'stretchability entry; can you
double-check that there's nothing erroneous/misleading?
Should I remove the +inf.0 bit?

* * * * * * * * * *

Joe Neeman wrote:
> The springs are always attached to the (0, 0) coordinate
> relative to each staff or markup.

So then (correct me if I'm wrong) my patch here is
completely correct except for one detail: the "reference
point" of a title/markup, which could be aligned with
reality with this diff:

 result, and no stretching or compressing is in effect.  The
-reference point of a title or markup is either its highest point
-(for spaces above) or its lowest point (for spaces below).  The
+reference point of a title or markup is its highest point, and the
 reference point of a system is the middle line of the nearest

* * * * * * * * * *

Graham Percival wrote:
> Please use @subsubheading for this kind of stuff.

Done.

* * * * * * * * * *

And Alexander, are there still things you'd like me to
change after reading my rationale (re: "unobstructed",
"meaningful [values]", etc.)?

* * * * * * * * * *

Otherwise, okay to push?

- Mark

http://codereview.appspot.com/2316042/