Just for the record, I experimented with setting top-system-spacing to 0 in the
"one-line-auto-height-breaking.cc" file like so:
`book_->paper_->set_variable (ly_symbol2scm ("top-system-spacing"),
scm_from_int (0));`
But this had no effect as far as I could tell. (Perhaps top-system-spacing is
given a value later and any changes made here are overwritten?)
To illustrate what happens with top-system-spacing, attached are a couple of
images with all margins set to 1. One shows leaving top-system-spacing
unchanged (which pushes the music down so it falls off the bottom of the page)
and one shows it set to 0 (so that the music is centered vertically between the
top and bottom margins).
I assume that for many use cases, top-system-spacing will need to be set to 0,
so I included a note about that in the documentation.
Attachments:
-
[margins-1-top-system-spacing-unset.png](https://sourceforge.net/p/testlilyissues/issues/_discuss/thread/5a24f851/904b/attachment/margins-1-top-system-spacing-unset.png)
(5.7 kB; image/png)
-
[margins-1-top-system-spacing-zero.png](https://sourceforge.net/p/testlilyissues/issues/_discuss/thread/5a24f851/904b/attachment/margins-1-top-system-spacing-zero.png)
(5.9 kB; image/png)
---
** [issues:#4743] Add ly:one-line-auto-height-breaking**
**Status:** Started
**Created:** Thu Jan 14, 2016 05:21 AM UTC by Paul Morris
**Last Updated:** Thu Jan 14, 2016 03:54 PM UTC
**Owner:** Paul Morris
Add ly:one-line-auto-height-breaking
Includes 4 commits:
Changes entry for ly:one-line-auto-height-breaking
Doc: NR 4.3.2 add ly:one-line-auto-height-breaking
Includes a few related edits to NR 4.3.2
mainly for ly:one-line-breaking
Add regtest for ly:one-line-auto-height-breaking
Add ly:one-line-auto-height-breaking
http://codereview.appspot.com/284240043
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