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spaceable-grob-interface

A layout object that takes part in the spacing problem.

User settable properties:
measure-length (moment)
Length of a measure. Used in some spacing situations.
penalty (number)
Penalty for breaking at this column. 10000 or more means forbid linebreak, -10000 or less means force linebreak. Other values influence linebreaking decisions as a real penalty.
Internal properties:
ideal-distances (list)
(obj . (dist . strength)) pairs.
left-neighbors (list of grobs)
List of spacing-wish grobs that are close to the current column.

The closest spacing-wishes determine the actual distances between the columns.

minimum-distances (list)
list of rods, that have the format (obj . dist).
right-neighbors (list of grobs)
see left-neighbors
spacing-wishes (list of grobs)
List of note spacing or staff spacing objects.

This grob interface is used in the following graphical objects: NonMusicalPaperColumn and PaperColumn

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