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3.1.22 BreakAlignGroup

An auxiliary grob to group several breakable items of the same type (clefs, time signatures, etc.) across staves so that they will be aligned horizontally. See also BreakAlignment.

BreakAlignGroup objects are created by the following engraver(s): Break_align_engraver.

Standard settings:

axes (list):

'(0)

List of axis numbers. In the case of alignment grobs, this should contain only one number.

break-align-anchor (number):

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

Grobs aligned to this breakable item 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.

break-align-anchor-alignment (number):

ly:break-aligned-interface::calc-joint-anchor-alignment

Read by ly:break-aligned-interface::calc-extent-aligned-anchor for aligning an anchor to a grob’s extent.

break-visibility (vector):

ly:break-aligned-interface::calc-break-visibility

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

X-extent (pair of numbers):

ly:axis-group-interface::width

Extent (size) in the X direction, measured in staff-space units, relative to object’s reference point.

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

This object is of class Item (characterized by item-interface).