Main Page: Difference between revisions

Revision as of 09:17, 3 December 2022

Welcome to a MediaWiki instance running 1.35 LTS, mainly for testing the Score extension and anything else I might be working on.

Forgive my indulgence, but I'm using the excellent skin from the Star Citizen wiki.

Score Extension

See also: Score examples.

This wiki is using an SVG-patched version of the Score extension; see T49578 and the REL1_35 patch on GitLab. It is using LilyPond version 2.23.82 (a release candidate for the 2.24 release scheduled for December 2022), which includes libcairo support for producing SVG (and PNG directly, without having to use PS and GhostScript; but one thing at a time).

Note: To yoink Lilypond snippets from Wikipedia articles, see Special:PagesWithProp and search for the "score" property in Article space.

Here's the Wagner excerpt for contrabass trombone, from Wikipedia.

First, the score block looks like this:

 <score lang="lilypond">
 \layout { ragged-right = ##t \context { \Score \omit BarNumber } }
 \relative g {
    \override DynamicTextSpanner.style = #'none
    \override Hairpin.minimum-length = #5
    \clef bass \key c \major
    g2~ \ff g8 f8 e8. d16
    c4 b a g  f e d c4 \break
    b a g f  e1~ \dim\!  << e1~ { s2 s4 s4 \> } >>  e4 \! \p r4 r2
 }
 </score>

Which normally generates a PNG image:

Standard PNG output, using Lilypond 2.22 --ps and GhostScript

But it now produces good SVG output:

Unable to obtain LilyPond version:

/bin/bash: line 1: /usr/local/bin/lilypond: No such file or directory

With a PNG fall-back generated using Lilypond's built-in libcairo support. As you can see, it is better, more finer-grained output than the GhostScript output:

New PNG output, directly using Lilypond 2.24 directly with --png and libcairo

Cropping is done with the new LilyPond -dno-use-paper-size-for-page option (docs), which precludes having to do it the old way with an extra ImageMagick convert shell command, and achieves the same result.

@@ Line 29: / Line 29: @@
 </syntaxhighlight>
-Which normally generates a PNG image. Here's the original output, from the current version of Score:
+Which normally generates a PNG image:
-[[File:Score.png|none|Standard output, using --ps and GhostScript, to PNG|class=mw-ext-score]]
+[[File:Score.png|none|Standard PNG output, using Lilypond 2.22 --ps and GhostScript|class=mw-ext-score]]
-But it now produces good, cropped SVG output:
+But it now produces good SVG output:
 <score lang="lilypond">
@@ Line 46: / Line 46: @@
 }
 </score>
+With a PNG fall-back generated using Lilypond's built-in libcairo support. As you can see, it is better, more finer-grained output than the GhostScript output:
+[[File:nku68xzt.png|none|New PNG output, directly using Lilypond 2.24 directly with --png and libcairo|class=mw-ext-score]]
 Cropping is done with the new LilyPond ''-dno-use-paper-size-for-page'' option ([https://lilypond.org/doc/v2.23/Documentation/usage/command_002dline-usage#advanced-command-line-options-for-lilypond docs]), which precludes having to do it the old way with an extra ImageMagick ''convert'' shell command, and achieves the same result.