Re: slur corehack

[Flaming Hakama by Elaine]

On a related note, I've found that looking at the various interface links
shown at the bottom of the grob properties pages can lead to otherwise
unknown definitions to cryptic properties. For example, on the Slur
properties page (http://lilypond.org/doc/v2.19/Documentation/internals/slur),
you'll see the major properties' default values. However, the "details"
property is just a list with no explanation. What to do now? You'll notice
that there are a handful of interfaces shown at the bottom, including:
- grob-interface
- outside-staff-interface
- slur-interface
- spanner-interface

The properties come from these interfaces. If you click on the
slur-interface link (
http://lilypond.org/doc/v2.19/Documentation/internals/slur_002dinterface),
then you'll happily notice that each of the "detail" properties have a
description. Whoa! I think you'll find this little tactic helpful in the
future.

Thanks, this provides more clue than the raw scm files.

 

Should there be a section about how to handle all the intricacies
of slurs? Maybe... Probably? Either way, you now at least have more
understanding as to what the properties mean. It may lead one of YOU to
write the section about mastering slurs in every way... Or maybe a
tutorial...

Best,
Abraham

 

Yes, it is best to simply produce better docs rather than rant.

So, in response to Carl's doc patch, here are my thoughts:

\version "2.19.15"

%{

  

    Examples most usefully demonstrate common cases for why you would want to adjust slurs.  

    Iin addition to a tame example, so you can see how these global adjustments affect slurs that don't really need adjustment.

    

    These are when there is more vertical distance to cover

    and avoiding accidentals. (Is there some other way to do that automatically?)

    Secondly, I think it makes sense to demonstrate reasonable ranges for the values, including the defaults 

    This helps folks from having to guess from scratch at what the units mean\

%}

music = \relative { g''2( a ) | b,8 ( fis ) g-. ( [ e'-. b'-. ] a-. [ f?-. d-. ] ) | c2 ( ~ \tuplet 3/2 { c8 g e } c4 ) | \break }

\layout { 

  indent = 1\cm

  short-indent = 1\cm

}

\score { 

  \relative {

    <>^"default: height-limit = 2"

    \music \bar "||"

    <>^"height-limit = 4"

    \override Slur.height-limit = 4

    \music \bar "||"

    <>^"height-limit = 6"

    \override Slur.height-limit = 6

    \music \bar "|."

  }

}

\score { 

  \relative {

    %  the problem with examples for ratio

    %  is that the ratio doesn't really come into play unless the height-limit is larger.

    \override Slur.height-limit = 5

    <>^"height-limit=5, default: ratio=0.36"

    \music \bar "||"

    <>^"ratio = 0.44"

    \override Slur.ratio = 0.44

    \music \bar "||"

    <>^"ratio = 0.52"

    \override Slur.ratio = 0.52

    \music \bar "|."

  }

}

\score { 

  \relative {

    <>^"default: free-head-distance=0.3"

    \music \bar "||"

    <>^"free-head-distance = 0.7"

    \override Slur.details.free-head-distance = 0.7

    \music \bar "||"

    <>^"free-head-distance = 1.5"

    \override Slur.details.free-head-distance = 1.5

    \music \bar "|."

  }

}

David Elaine Alt

415 . 341 .4954                                           "Confusion is highly underrated"

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