+ Line_shape shape_;
+ vector<Real> footnote_heights_; /* The footnotes at the bottom of the
+ page, where each stencil represents
+ a different footnote. */
+ vector<Real> in_note_heights_; /* The in-notes under a system,
+ where each stencil represents
+ a different in-note. */
+ Interval refpoint_extent_; /* The refpoints of the first and last
+ spaceable staff in this line. min-distance
+ should be measured from the bottom
+ refpoint_extent of one line to the
+ top refpoint_extent of the next. */
+ Real tallness_; /* Y-extent, adjusted according to begin/rest-of-line*/