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3.4 Internal backend properties
-
accidental-grob
(graphical (layout) object) The accidental for this note.
-
accidental-grobs
(list) An alist with
(notename . groblist)
entries.-
add-cauda
(boolean) Does this flexa require an additional cauda on the left side?
-
add-join
(boolean) Is this ligature head-joined with the next one by a vertical line?
-
add-stem
(boolean) Is this ligature head a virga and therefore needs an additional stem on the right side?
-
adjacent-pure-heights
(pair) A pair of vectors. Used by a
VerticalAxisGroup
to cache theY-extent
s of different column ranges.-
adjacent-spanners
(array of grobs) An array of directly neighboring dynamic spanners.
-
all-elements
(array of grobs) An array of all grobs in this line. Its function is to protect objects from being garbage collected.
-
arpeggio
(graphical (layout) object) A pointer to an
Arpeggio
object.-
ascendens
(boolean) Is this neume of ascending type?
-
auctum
(boolean) Is this neume liquescentically augmented?
-
axis-group-parent-X
(graphical (layout) object) Containing X axis group.
-
axis-group-parent-Y
(graphical (layout) object) Containing Y axis group.
-
bar-extent
(pair of numbers) The Y-extent of the actual bar line. This may differ from
Y-extent
because it does not include the dots in a repeat bar line.-
bars
(array of grobs) An array of bar line pointers.
-
beam
(graphical (layout) object) A pointer to the beam, if applicable.
-
begin-of-line-visible
(boolean) Set to make
ChordName
orFretBoard
be visible only at beginning of line or at chord changes.-
bounded-by-me
(array of grobs) An array of spanners that have this column as start/begin point. Only columns that have grobs or act as bounds are spaced.
-
bracket
(graphical (layout) object) The bracket for a number.
-
cause
(any type) Any kind of causation objects (i.e., music, or perhaps translator) that was the cause for this grob.
-
cavum
(boolean) Is this neume outlined?
-
columns
(array of grobs) An array of grobs, typically containing
PaperColumn
orNoteColumn
objects.-
conditional-elements
(array of grobs) Internal use only.
-
context-info
(integer) Within a ligature, the final glyph or shape of a head may be affected by the left and/or right neighbour head.
context-info
holds for each head such information about the left and right neighbour, encoded as a bit mask.-
cross-staff
(boolean) For a beam or a stem, this is true if we depend on inter-staff spacing.
-
delta-position
(number) The vertical position difference.
-
deminutum
(boolean) Is this neume deminished?
-
descendens
(boolean) Is this neume of descendent type?
-
direction-source
(graphical (layout) object) In case
side-relative-direction
is set, which grob to get the direction from.-
dot
(graphical (layout) object) A reference to a
Dots
object.-
dots
(array of grobs) Multiple
Dots
objects.-
elements
(array of grobs) An array of grobs; the type is depending on the grob where this is set in.
-
encompass-objects
(array of grobs) Objects that a slur should avoid in addition to notes and stems.
-
figures
(array of grobs) Figured bass objects for continuation line.
-
flexa-height
(dimension, in staff space) The height of a flexa shape in a ligature grob (in
staff-space
units).-
flexa-width
(dimension, in staff space) The width of a flexa shape in a ligature grob in (in
staff-space
units).-
font
(font metric) A cached font metric object.
-
forced
(boolean) Manually forced accidental.
-
grace-spacing
(graphical (layout) object) A run of grace notes.
-
head-width
(dimension, in staff space) The width of this ligature head.
-
heads
(array of grobs) An array of note heads.
-
ideal-distances
(list) (obj . (dist . strength))
pairs.-
important-column-ranks
(vector) A cache of columns that contain
items-worth-living
data.-
inclinatum
(boolean) Is this neume an inclinatum?
-
interfaces
(list) A list of symbols indicating the interfaces supported by this object. It is initialized from the
meta
field.-
items-worth-living
(array of grobs) An array of interesting items. If empty in a particular staff, then that staff is erased.
-
join-right-amount
(number) A length used for calculating the Y-extent of mensural ligatures.
-
least-squares-dy
(number) The ideal beam slope, without damping.
-
left-items
(array of grobs) DOCME
-
left-neighbor
(graphical (layout) object) The right-most column that has a spacing-wish for this column.
-
linea
(boolean) Attach vertical lines to this neume?
-
maybe-loose
(boolean) Used to mark a breakable column that is loose if and only if it is in the middle of a line.
-
meta
(list) Provide meta information. It is an alist with the entries
name
andinterfaces
.-
minimum-distances
(list) A list of rods that have the format
(obj . dist)
.-
normal-stems
(array of grobs) An array of visible stems.
-
note-columns
(array of grobs) An array of
NoteColumn
grobs.-
note-head
(graphical (layout) object) A single note head.
-
note-heads
(array of grobs) An array of note head grobs.
-
oriscus
(boolean) Is this neume an oriscus?
-
pedal-text
(graphical (layout) object) A pointer to the text of a mixed-style piano pedal.
-
pes-or-flexa
(boolean) Shall this neume be joined with the previous head?
-
positioning-done
(boolean) Used to signal that a positioning element did its job. This ensures that a positioning is only done once.
-
prefix-set
(number) A bit mask that holds all Gregorian head prefixes, such as
\virga
or\quilisma
.-
primitive
(integer) A pointer to a ligature primitive, i.e., an item similar to a note head that is part of a ligature.
-
pure-relevant-grobs
(array of grobs) All the grobs (items and spanners) that are relevant for finding the
pure-Y-extent
-
pure-relevant-items
(array of grobs) A subset of elements that are relevant for finding the
pure-Y-extent
.-
pure-relevant-spanners
(array of grobs) A subset of elements that are relevant for finding the
pure-Y-extent
.-
pure-Y-common
(graphical (layout) object) A cache of the
common_refpoint_of_array
of theelements
grob set.-
pure-Y-extent
(pair of numbers) The estimated height of a system.
-
pure-Y-offset-in-progress
(boolean) A debugging aid for catching cyclic dependencies.
-
quant-score
(string) The beam quanting score; stored for debugging.
-
quantize-position
(boolean) If set, a vertical alignment is aligned to be within staff spaces.
-
quantized-positions
(pair of numbers) The beam positions after quanting.
-
quilisma
(boolean) Is this neume a quilisma?
-
rest
(graphical (layout) object) A pointer to a
Rest
object.-
rest-collision
(graphical (layout) object) A rest collision that a rest is in.
-
rests
(array of grobs) An array of rest objects.
-
right-items
(array of grobs) DOCME
-
right-neighbor
(graphical (layout) object) See
left-neighbor
.-
script-stencil
(pair) A pair
(type . arg)
which acts as an index for looking up aStencil
object.-
shorten
(dimension, in staff space) The amount of space that a stem is shortened. Internally used to distribute beam shortening over stems.
-
side-support-elements
(array of grobs) The side support, an array of grobs.
-
skyline-distance
(number) The distance between this staff and the next one, as determined by a skyline algorithm.
-
slur
(graphical (layout) object) A pointer to a
Slur
object.-
spaceable-staves
(array of grobs) Objects to be spaced during page layout.
-
spacing
(graphical (layout) object) The spacing spanner governing this section.
-
spacing-wishes
(array of grobs) An array of note spacing or staff spacing objects.
-
staff-grouper
(graphical (layout) object) The staff grouper we belong to.
-
staff-symbol
(graphical (layout) object) The staff symbol grob that we are in.
-
stem
(graphical (layout) object) A pointer to a
Stem
object.-
stem-info
(pair) A cache of stem parameters.
-
stems
(array of grobs) An array of stem objects.
-
stropha
(boolean) Is this neume a stropha?
-
system-Y-offset
(number) The Y-offset (relative to the bottom of the top-margin of the page) of the system to which this staff belongs.
-
tie
(graphical (layout) object) A pointer to a
Tie
object.-
tremolo-flag
(graphical (layout) object) The tremolo object on a stem.
-
tuplet-number
(graphical (layout) object) The number for a bracket.
-
tuplets
(array of grobs) An array of smaller tuplet brackets.
-
use-breve-rest
(boolean) Use breve rests for measures longer than a whole rest.
-
virga
(boolean) Is this neume a virga?
-
X-common
(graphical (layout) object) Common reference point for axis group.
-
x-offset
(dimension, in staff space) Extra horizontal offset for ligature heads.
-
Y-common
(graphical (layout) object) See
X-common
.
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