GNU LilyPond

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Node:NoteHead, Next:Glissando, Previous:NoteColumn, Up:LilyPond backend

NoteHead

NoteHead grobs are created by: Note_heads_engraver

note-head-interface

Note head

style (symbol):

a string determining what style of glyph is typeset. Valid choices depend on the function that is reading this property. . Default value: 'default

stem-attachment-function (procedure):

Where does the stem attach to the notehead? Function takes a symbol argument being the style. It returns a (X . Y) pair, specifying location in terms of note head bounding box. Default value: #<procedure note-head-style->attachment-coordinates (style)>

note-character (string):

character to print in a note head. Default value: (unset)

font-interface

Any symbol that is typeset through fixed sets of glyphs (ie. fonts)

font-style (symbol):

a precooked set of font definitions, eg. finger volta timesig mark script large Large dynamic. Default value: (unset)

font-series (symbol):

partial font definition: medium, bold. Default value: (unset)

font-shape (symbol):

partial font definition: upright or italic. Default value: (unset)

font-family (symbol):

partial font definition: music roman braces dynamic math ... Default value: (unset)

font-name (symbol):

partial font definition: base name of font file FIXME: should override other partials. Default value: (unset)

font-design-size (number):

partial font definition: exact font size in points FIXME: should override font-relative-size. Default value: (unset)

font-relative-size (number):

partial font definition: the relative size compared the `normal' size. 0 is style-sheet's normal size, -1 is smaller, +1 is bigger, -1 is smaller. Default value: (unset)

rhythmic-head-interface

Note head or rest

dot (grob (GRaphical OBject)):

reference to Dots object. Default value: (unset)

stem (grob (GRaphical OBject)):

pointer to Stem object. Default value: (unset)

duration-log (integer):

2-log of the notehead duration, i.e. 0=whole note, 1 = half note, etc. Default value: (unset)

general-grob-interface

All grobs support this

X-offset-callbacks (list):

list of functions, each taking an grob and axis argument. The function determine the position relative to this grob's parent. The last one in the list is called first. Default value: (unset)

Y-offset-callbacks (list):

see X-offset-callbacks. Default value: '(#<primitive-procedure Staff_symbol_referencer::callback>)

X-extent-callback (procedure):

procedure taking an grob and axis argument, returning a number-pair. The return value is the extent of the grob. Default value: (unset)

Y-extent-callback (procedure):

see X-extent-callback. Default value: (unset)

molecule-callback (procedure):

Function taking grob as argument, returning a Scheme encoded Molecule. Default value: #<primitive-procedure Note_head::brew_molecule>

font-relative-size (number):

partial font definition: the relative size compared the `normal' size. 0 is style-sheet's normal size, -1 is smaller, +1 is bigger, -1 is smaller. Default value: (unset)

extra-offset (pair of numbers):

pair of reals (a cons) forcing an extra offset before outputting. extra-offset is added just before `printing' the grob, so the typesetting engine is completely oblivious to it.

Default value: (unset)

interfaces (list):

list of symbols indicating the interfaces supported by this object. Is initialized from the meta field. Default value: (unset)

dependencies (list):

list of score-grob pointers that indicate who to compute first for certain global passes. Default value: (unset)

no-spacing-rods (boolean):

read from grobs: boolean that makes Separation_item ignore this item (MOVE ME TO ITEM). Default value: (unset)

extra-extent-X (pair of numbers):

enlarge in X dimension by this much, measured in staff space. Default value: (unset)

extra-extent-Y (pair of numbers):

see extra-extent-Y. Default value: (unset)

minimum-extent-X (pair of numbers):

minimum size in X dimension, measured in staff space. Default value: (unset)

minimum-extent-Y (pair of numbers):

see minimum-extent-Y. Default value: (unset)

origin (input location):

location in input file of the definition. Default value: (unset)

transparent (boolean):

This is almost the same as setting molecule-callback to #f, but this retains the dimensions of this grob, which means that you can erase grobs individually. . Default value: (unset)

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Copyright (c) 1997--2001 Han-Wen Nienhuys and Jan Nieuwenhuizen.

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