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3.2.85 pure-from-neighbor-interface

A collection of routines to allow for objects’ pureheights and heights to be calculated based on theheights of the objects’ neighbors.

Internal properties:

neighbors (array of grobs)

The X-axis neighbors of a grob. Used by the pure-from-neighbor-interface to determine various grob heights.

pure-relevant-grobs (array of grobs)

All the grobs (items and spanners) that are relevant for finding the pure-Y-extent

pure-Y-common (graphical (layout) object)

A cache of the common_refpoint_of_array of the elements grob set.

This grob interface is used in the following graphical object(s): BarLine, Clef, CueClef, CueEndClef, KeyCancellation, KeySignature, SpanBarStub and TimeSignature.

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