3.1.53 LeftEdge

LeftEdge objects are created by: Break_align_engraver.

Standard settings:

break-align-symbol (symbol):

'left-edge

This key is used for aligning and spacing breakable items.

break-align-anchor (number):

ly:break-aligned-interface::calc-extent-aligned-anchor

Grobs aligned to this break-align grob will have their X-offsets shifted by this number. In bar lines, for example, this is used to position grobs relative to the (visual) center of the bar line.

X-extent (pair of numbers):

'(0 . 0)

Hard coded extent in X direction.

non-musical (boolean):

#t

True if the grob belongs to a NonMusicalPaperColumn.

break-visibility (vector):

#(#t #f #t)

A vector of 3 booleans, #(end-of-line unbroken begin-of-line). #t means visible, #f means killed.

space-alist (list):

'((custos extra-space . 0.0) (ambitus extra-space . 2.0) (time-signature extra-space . 1.0) (staff-bar extra-space . 0.0) (breathing-sign minimum-space . 0.0) (clef extra-space . 0.8) (first-note fixed-space . 2.0) (right-edge extra-space . 0.0) (key-signature extra-space . 0.0) (key-cancellation extra-space . 0.0))

A table that specifies distances between prefatory items, like clef and time-signature. The format is an alist of spacing tuples: (break-align-symbol type . distance), where type can be the symbols minimum-space or extra-space.

This object supports the following interface(s): item-interface, break-aligned-interface and grob-interface.


Internals Reference