spanner-interface

Some objects are horizontally spanned between objects. For example, slur, beam, tie, etc. These grobs form a subtype called Spanner. All spanners have two span-points (these must be Item objects), one on the left and one on the right. The left bound is also the X-reference point of the spanner.

User settable properties:

minimum-length (dimension, in staff space)

Try to make a spanner at least this long. This requires an appropriate callback for the springs-and-rods property.

This grob interface is used in the following graphical objects: BassFigureAlignment, BassFigureAlignmentPositioning, BassFigureContinuation, BassFigureLine, Beam, BendAfter, ClusterSpanner, DynamicLineSpanner, DynamicTextSpanner, Glissando, GraceSpacing, Hairpin, HorizontalBracket, InstrumentName, LedgerLineSpanner, LigatureBracket, LyricExtender, LyricHyphen, LyricSpace, MeasureGrouping, MensuralLigature, MultiMeasureRest, MultiMeasureRestNumber, MultiMeasureRestText, OttavaBracket, PercentRepeat, PercentRepeatCounter, PhrasingSlur, PianoPedalBracket, SeparatingGroupSpanner, Slur, SostenutoPedalLineSpanner, SpacingSpanner, StaffSymbol, SustainPedalLineSpanner, System, SystemStartBar, SystemStartBrace, SystemStartBracket, SystemStartSquare, TextSpanner, Tie, TieColumn, TrillSpanner, TupletBracket, TupletNumber, UnaCordaPedalLineSpanner, VaticanaLigature, VerticalAlignment, VerticalAxisGroup, VoiceFollower and VoltaBracket