Am Dienstag, 3. Oktober 2023, 12:55:21 CEST schrieb Robert Mengual: > Thanks a lot Valentin, that's simply perfect! > > However, after reading a lot of the documentation I think I would have > never been able to find any solution close to yours. I am very confused > with a few things, and I can't find the answers in the documentation. Let > me ask you a few questions in hope that I will be able to solve problems on > my own next time.
Hello Robert, I do understand that getting into details for a oftware like lilypond can be a bit hard. Since it is a small open source project it is not perfectly documented in each regard, especially once you start to go into extending it. I’d recommend reading Jean’s introduction into extending lilypond: https://extending-lilypond.gitlab.io/[1] Once you’ve seen these things a few times it will become a lot easier (I did take some time to get where I am now, and it would have been much less if I had something like Jean’s guide). > - How did you know you could pass a function that receives a grob to > KeySignature.key? (Raw) grob properties can be either values or callbacks, which are functions that take the grob itself as argument (these are automatically evaluated when getting the property). You doing \override KeySignature.stencil = #ly:text-interface::print is assingning a function to the stencil property. > - If an overriden property expects a number, can it be defined as a > function that receives a grob and returns a number? Exactly. > - How did you know alterations-alist is a property of that grob? https://lilypond.org/doc/v2.24/Documentation/internals/ key_002dsignature_002dinterface[2] > - What is #:vcenter and how did you know of its existence? markup command for vertically centering stuff (relative to itself), see here: https://lilypond.org/doc/v2.24/Documentation/notation/align[3] Using this the number will not extend from the middle line upward, but be centered around the middle line. Cheers, Valentin -------- [1] https://extending-lilypond.gitlab.io/ [2] https://lilypond.org/doc/v2.24/Documentation/internals/ key_002dsignature_002dinterface [3] https://lilypond.org/doc/v2.24/Documentation/notation/align
signature.asc
Description: This is a digitally signed message part.
