Generate special note head shapes: Difference between revisions

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When a note head with a special shape cannot easily be generated with graphic markup, ~~PostScript~~ code can be used to generate the shape. This example ~~shows how~~ a parallelogram-shaped note head ~~is generated~~.

When a note head with a special shape cannot easily be generated with graphic markup, a drawing specification for <code>ly:make-stencil</code> can be used to generate the shape. This example gives an example for a parallelogram-shaped note head.

<~~lilypond version="2.24.0"~~>

Unfortunately, the available commands in a drawing specification are [https://gitlab.com/lilypond/lilypond/-/issues/6874 currently not documented]; in any case, the used <code>path</code> sub-command has the following signature, quite similar to the <code>make-path-stencil</code> Scheme function.

~~%% Updaters remark:~~

~~%% For unkown reasons this snippet returns a gs~~-~~error, but only~~, ~~if compiled~~

(path <var>thickness</var> <var>command-list</var> <var>line-cap-style</var> <var>line-join-style</var> <var>fill</var>)

~~%% with multiple others like: lilypond *.ly~~

~~%% Thus changing~~ to a path-stencil.

The commands in <var>command-list</var> resemble PostScript drawing commands but with arguments after the command name.

~~%% TODO description needs to get adjusted~~ --~~harm~~

parallelogram =

#(ly:make-stencil

'(path 0.1

(rmoveto 0 0.25

lineto 1.~~3125~~ 0.75

lineto 1.2 0.75

lineto 1.~~3125~~ -0.25

lineto 1.2 -0.25

lineto 0 -0.75)

lineto 0 -0.75

round

lineto 0 0.25)

round

#t)

round

(cons 0 1.~~3125~~)

#t)

(cons -0.05 1.25)

(cons -.75 .75))

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</lilypond>

[[Category:Editorial annotations]]

[[Category:Scheme]]

[[Category:Tweaks and overrides]]

~~[[Category:Scheme]]~~

~~[[Category:Editorial annotations]]~~

[[Category:Included in the official documentation]]

[[Category:~~Really cool~~]]

[[Category:Snippet]]

@@ Line 1: / Line 1: @@
-When a note head with a special shape cannot easily be generated with graphic markup, PostScript code can be used to generate the shape. This example shows how a parallelogram-shaped note head is generated.
+When a note head with a special shape cannot easily be generated with graphic markup, a drawing specification for <code>ly:make-stencil</code> can be used to generate the shape. This example gives an example for a parallelogram-shaped note head.
-<lilypond version="2.24.0">
+Unfortunately, the available commands in a drawing specification are [https://gitlab.com/lilypond/lilypond/-/issues/6874 currently not documented]; in any case, the used <code>path</code> sub-command has the following signature, quite similar to the <code>make-path-stencil</code> Scheme function.
-%% Updaters remark:
-%% For unkown reasons this snippet returns a gs-error, but only, if compiled
+  (path <var>thickness</var> <var>command-list</var> <var>line-cap-style</var> <var>line-join-style</var> <var>fill</var>)
-%% with multiple others like: lilypond *.ly
-%% Thus changing to a path-stencil.
+The commands in <var>command-list</var> resemble PostScript drawing commands but with arguments after the command name.
-%% TODO description needs to get adjusted  --harm
+<lilypond version="2.24">
 parallelogram =
    #(ly:make-stencil
      '(path 0.1
-        (rmoveto 0 0.25
+           (rmoveto 0 0.25
-         lineto 1.3125 0.75
+            lineto 1.2 0.75
-         lineto 1.3125 -0.25
+            lineto 1.2 -0.25
-         lineto 0 -0.75)
+            lineto 0 -0.75
-         round
+            lineto 0 0.25)
-         round
+           round
-         #t)
+           round
-     (cons 0 1.3125)
+           #t)
+     (cons -0.05 1.25)
      (cons -.75 .75))
@@ Line 32: / Line 33: @@
 </lilypond>
+[[Category:Editorial annotations]]
+[[Category:Scheme]]
 [[Category:Tweaks and overrides]]
-[[Category:Scheme]]
-[[Category:Editorial annotations]]
 [[Category:Included in the official documentation]]
-[[Category:Really cool]]
+[[Category:Snippet]]