Re: Changing the "midpoint" of a custom staff for stem direction purposes

[Eluze]

Paul Morris-6 wrote
> Hello everyone,
> 
> Here's another obscure question.  If you change the line-positions to
> create a custom staff, for example to have a 4-line staff, what is the
> best way to also change the "midpoint" of the staff, so that the stem
> directions are correct for the altered staff?  (Notes should get upwards
> stems in the bottom half of the staff, and downward stems in the top
> half.)
> 
> I've gotten pretty far with the approach below.  It seems to work, but
> then it does not work for beamed 8th notes.  
> 
> (I started by setting the stem's "direction" instead of
> "default-direction", but that works "too well" and results in beaming
> problems -- see attached image.)
> 
> Internals Reference for Stem:
> http://www.lilypond.org/doc/v2.16/Documentation/internals/stem
> 
> Any suggestions appreciated,

hi

I never used such transformations, but in 

/NR 1.6.2 Modifying single staves /(2.17.11) I found:

"The clef position and the position of middle C may need to be adjusted
accordingly to fit
the new lines."

maybe this can be of use.

Eluze



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