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Paper_column objects form the top-most X-parents for items. The are two types of columns: musical columns, where are attached to, and non-musical columns, where bar-lines, clefs etc. are attached to. The spacing engine determines the X-positions of these objects.
They are numbered, the first (leftmost) is column 0. Numbering happens before line-breaking, and columns are not renumbered after line breaking. Since many columns go unused, you should only use the rank field to get ordering information. Two adjacent columns may have non-adjacent numbers.
between-cols (pair)line-break-system-details (list)page-penalty (number)shortest-playing-duration (moment)shortest-starter-duration (moment)used (boolean)when (moment)bounded-by-me (unknown)This grob interface is used in the following graphical objects: NonMusicalPaperColumn, NonMusicalPaperColumn, PaperColumn and PaperColumn
This page is for LilyPond-2.8.8 (stable-branch).