Hi José, On Mon, May 21, 2012 at 9:09 AM, padovani <zepadovani.li...@gmail.com>wrote:
> Hello, > > I'm dealing with special noteheads I've designed and I need to move the > stem and the flag differently if stem direction is up or down. > > I would like to create a guile lisp clause that sets the extra-offset > value accordingly to the Stem position. > > I was trying this, but it does not work... > > \once \override Stem #'extra-offset = #(if (eqv? ly:stem::calc-direction > UP) '(-0.02 . -0.25) '(0.02 . 0.25)) > > (also tried this... > \once \override Stem #'extra-offset = #(if (ly:dir? > ly:stem::calc-direction UP) '(-0.02 . -0.25) '(0.02 . 0.25)) > ) > > any tips? > You're almost there, but ly:stem::calc-direction is a procedure which needs the Stem grob as its argument. So you can do this: \version "2.14.2" \relative c'' { c c' \override Stem #'extra-offset = #(lambda (grob) (if (eqv? (ly:stem::calc-direction grob) UP) '(-0.02 . -0.25) '(0.02 . 0.25))) c, c' } BTW, you could also use ly:grob-property here to get the direction of the stem: \override Stem #'extra-offset = #(lambda (grob) (if (eq? (ly:grob-property grob 'direction) UP) '(-0.02 . -0.25) '(0.02 . 0.25))) HTH, David
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