On Tue, Jul 21, 2015 at 6:18 PM, Simon Albrecht <[email protected]> wrote:
> > So a ‘mutable property’ would be one that is unset by default? > My understanding is that immutable properties store default values--such as a procedure to be applied when calculating Stem.thickness or whatever, and immutable properties store the results of calculations for a particular instance of a grob--for example, the value obtained by applying the default procedure to a certain Stem. These terms are defined here (a bit cryptically I think): http://lilypond.org/doc/v2.19/Documentation/notation/technical-glossary > > You'll note that each of the other properties you offset has a > default value in scm/define-grobs.scm > > As a side note: I find it confusing that these are not to be found in the > IR. > But they are--for example, http://lilypond.org/doc/v2.19/Documentation/internals/dynamiclinespanner is built from the entry in scm/define-grobs.scm. > I added issue 4516 > <https://code.google.com/p/lilypond/issues/detail?id=4516> > <https://code.google.com/p/lilypond/issues/detail?id=4516> for improving > \offset and referenced your first suggestions there. > > Thanks! David
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