- **labels**:  --> Fixed_2_19_50
- **status**: Started --> Fixed
- **Patch**: push -->  
- **Comment**:

pushed to staging as:

commit 3ad118d6062153701ab613c1b3855911c45214d3
Author: Thomas Morley <[email protected]>
Date:   Tue Oct 25 22:29:20 2016 +0200

    Issue 4988 straight-flags partly wrong calculated
    
    The angles for straight-flags at down- and up-pointing stems are now
    accurately respected.
    This will cause some slight changes in the reg-tests.
    Also fixing flat-flags, which relied on the old, buggy calculation.
    Also doing the same fixes for markup-command note-by-number.
    Also fixing an oversight in regtest metronome-mark-formatter.ly,
    where the creation of the metronome-markup depends on note-by-number.




---

** [issues:#4988] straight-flags partly wrong claculated**

**Status:** Fixed
**Labels:** Fixed_2_19_50 
**Created:** Tue Oct 25, 2016 08:26 PM UTC by Thomas Morley
**Last Updated:** Thu Nov 03, 2016 06:35 PM UTC
**Owner:** Thomas Morley
**Attachments:**

- 
[RegTest1.png](https://sourceforge.net/p/testlilyissues/issues/4988/attachment/RegTest1.png)
 (186.1 kB; image/png)
- 
[RegTest2a.png](https://sourceforge.net/p/testlilyissues/issues/4988/attachment/RegTest2a.png)
 (99.2 kB; image/png)
- 
[RegTest2b.png](https://sourceforge.net/p/testlilyissues/issues/4988/attachment/RegTest2b.png)
 (38.2 kB; image/png)
- 
[straight-flags-current.pdf](https://sourceforge.net/p/testlilyissues/issues/4988/attachment/straight-flags-current.pdf)
 (10.0 kB; application/pdf)


In scheme-generated flags the calculation done in straight-flag is partly 
wrong. Causing the used angle to come out different for down-stem flags.

It's hard to see (thanks to Malte), thus I added long lines to the beam in a 
wide paper setting and attached an image with current state.

Using this basic code 
~~~~
\version "2.19.49"
{
  \time 1/8
  
  \override Flag.stencil = #(straight-flag 0.5 1   1 10   1 10)
  
  \autoBeamOff
  
  \stemUp c''16 
  \stemDown c''
}
~~~~

with a wide custom-paper-size





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