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3.1.52 FingerGlideSpanner

A line connecting two Fingering, StringNumber or StrokeFinger grobs, usually indicating a gliding finger, the same string, or the same stroking finger for stringed instruments .

FingerGlideSpanner objects are created by the following engraver(s): Finger_glide_engraver.

Standard settings:

bound-details (alist, with symbols as keys):

'((right (attach-dir . -1)
         (right-stub-length . 1)
         (padding . 0.2))
  (left (attach-dir . 1)
        (left-stub-length . 1)
        (padding . 0.2)))

An alist of properties for determining attachments of spanners to edges.

dash-fraction (number):

0.4

Size of the dashes, relative to dash-period. Should be between 0.1 and 1.0 (continuous line). If set to 0.0, a dotted line is produced

dash-period (number):

1

The length of one dash together with whitespace. If negative, no line is drawn at all.

details (alist, with symbols as keys):

'((bow-direction . #f))

An alist of parameters for detailed grob behavior. See All layout objects for more information on the available parameters and their default values of a particular grob’s details property. See Graphical Object Interfaces for documentation of the available parameters. Supporting interfaces can be found at the bottom of a grob’s description section.

left-bound-info (alist, with symbols as keys):

ly:line-spanner::calc-left-bound-info

An alist of properties for determining attachments of spanners to edges.

minimum-length (dimension, in staff space):

2.5

Try to make a spanner at least this long, normally in the horizontal direction. This requires an appropriate callback for the springs-and-rods property. If added to a Tie, this sets the minimum distance between noteheads.

minimum-length-after-break (dimension, in staff space):

2.5

If set, try to make a broken spanner starting a line this long. This requires an appropriate callback for the springs-and-rods property. If added to a Tie, this sets the minimum distance to the notehead.

normalized-endpoints (pair):

ly:spanner::calc-normalized-endpoints

Represents left and right placement over the total spanner, where the width of the spanner is normalized between 0 and 1.

right-bound-info (alist, with symbols as keys):

ly:line-spanner::calc-right-bound-info

An alist of properties for determining attachments of spanners to edges.

springs-and-rods (boolean):

ly:spanner::set-spacing-rods

Dummy variable for triggering spacing routines.

stencil (stencil):

finger-glide::print

The symbol to print.

style (symbol):

'line

This setting determines in what style a grob is typeset. Valid choices depend on the stencil callback reading this property.

thickness (number):

1.4

For grobs made up of lines, this is the thickness of the line. For slurs and ties, this is the distance between the two arcs of the curve’s outline at its thickest point, not counting the diameter of the virtual “pen” that draws the arcs. This property is expressed as a multiple of the current staff-line thickness (i.e., the visual output is influenced by changes to Staff.StaffSymbol.thickness).

vertical-skylines (pair of skylines):

#<unpure-pure-container #<procedure ly:grob::vertical-skylines-from-stencil (_)> #<procedure ly:grob::pure-simple-vertical-skylines-from-extents (_ _ _)> >

Two skylines, one above and one below this grob.

zigzag-length (dimension, in staff space):

1

The length of the lines of a zigzag, relative to zigzag-width. A value of 1 gives 60-degree zigzags.

zigzag-width (dimension, in staff space):

1

The width of one zigzag squiggle. This number is adjusted slightly so that the spanner line can be constructed from a whole number of squiggles.

This object supports the following interface(s): finger-glide-interface, font-interface, grob-interface, line-spanner-interface and spanner-interface.

This object is of class Spanner (characterized by spanner-interface).