Paul Morris <[email protected]> writes: > Here's my specific question. The docs say this for the Y-offset > property of the Script object: > > |Y-offset| (number): > > |#<unpure-pure-container #<primitive-procedure > ly:side-position-interface::y-aligned-side> #<primitive-procedure > ly:side-position-interface::pure-y-aligned-side> >| > > The vertical amount that this object is moved relative to its Y-parent. > > http://lilypond.org/doc/v2.19/Documentation/internals/script > > But in the source code, in 'scm/define-grobs.scm', for the Script grob > I see no mention of unpure-pure-container: > > (Y-offset . ,side-position-interface::y-aligned-side)
You are missing the difference between ly:side-position-interface::y-aligned-side and side-position-interface::y-aligned-side . The latter is defined in scm/output-lib.scm as (define-public side-position-interface::y-aligned-side (ly:make-unpure-pure-container ly:side-position-interface::y-aligned-side ly:side-position-interface::pure-y-aligned-side)) > So am I missing something or are the docs off for Script.Y-offset? The docs are autogenerated and cannot be off with regard to listed default values. > Is a call to "(ly:side-position-interface::y-aligned-side grob)" > actually the default call to use? You are better off with (ly:pure-call side-position-interface::y-aligned-side grob start end) or (ly:unpure-call side-position-interface::y-aligned-side grob) depending on what you need. Or of course calling ly:side-position-interface::y-aligned-side and ly:side-position-interface::pure-y-aligned-side directly. -- David Kastrup _______________________________________________ lilypond-user mailing list [email protected] https://lists.gnu.org/mailman/listinfo/lilypond-user
