- **labels**: Frog -->
- Description has changed:
Diff:
~~~~
~~~~
- **status**: Accepted --> Started
- **assigned_to**: Torsten Hämmerle
- **Needs**: -->
- **Patch**: -->
- **Type**: Enhancement --> Defect
- **Comment**:
Changed to Type "Defect" because the coding clearly isn't working as intended
for extreme values of damping and even (seemingly) random results occur.
More details to follow (about the LilyPond beam damping algorithm in general
and unwanted side-effects in cases of extreme damping in particular).
Cheerio,
Torsten
---
** [issues:#1493] Problem with horizontal beams**
**Status:** Started
**Created:** Wed Jan 26, 2011 12:21 PM UTC by Anonymous
**Last Updated:** Wed Jan 26, 2011 12:21 PM UTC
**Owner:** Torsten Hämmerle
**Attachments:**
-
[beams.ly](https://sourceforge.net/p/testlilyissues/issues/1493/attachment/beams.ly)
(807 Bytes; application/octet-stream)
-
[screenshot.png](https://sourceforge.net/p/testlilyissues/issues/1493/attachment/screenshot.png)
(18.9 kB; image/png)
*Originally created by:* *anonymous
*Originally created by:*
[[email protected]](http://code.google.com/u/106131861630194758622/)
James Lowe :
There seems to be an inconsistency with setting horizontal beams.
We have a snippet where we state that
\override Beam \#'damping = \#+inf.0
Should generate horizontal beams in all cases.
However the simple example attached shows some odd inconsistencies.
\version "2.13.40"
\relative c'' \{
\override Beam \#'damping = \#+inf.0
f16 g a b a c d g, a b a c d e f g, % all beams horizontal
f16 g a b a c d g, a b a c d e f g, % all beams horizontal
f16 g a b a c d g, a b a c d e f g, % 2nd and 4th group not
Horizontal
f16 g a b a c d g, a b a c d e f g, % 2nd and 4th group not
Horizontal
\}
\relative c'' \{
\override Beam \#'damping = \#+inf.0
f16 g a b a c d g, a b a c d e f g, \break % 4th group not
Horizontal
f16 g a b a c d g, a b a c d e f g, \break % 2nd and 4th group not
Horizontal
f16 g a b a c d g, a b a c d e f g, \break % 2nd and 4th group not
Horizontal
f16 g a b a c d g, a b a c d e f g, \break % 2nd and 4th group not
Horizontal
\}
Phil Holmes :
I'd suggest the snippet is worth sorting out, too. What do you reckon - adding
the commands
\override Beam \#'details \#'damping-direction-penalty = \#0
\override Beam \#'details \#'round-to-zero-slope = \#0
to the existing snippet, or a new one pointed to by the old one, that says "if
\override Beam \#'damping = \#+inf.0 doesn't do what you want, add the other
commands too, as shown here"?
---
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