BowContactSpanner

class spannertools.BowContactSpanner(overrides=None)

Bow contact spanner.

>>> import abjad
>>> staff = abjad.Staff()
>>> staff.extend(r"c'4. c'8 \times 2/3 { c'4 c'4 c'4 }")
>>> leaves = abjad.select(staff).by_leaf()
>>> spanner = abjad.BowContactSpanner()
>>> abjad.attach(spanner, leaves)
>>> spanner.attach(abjad.BowMotionTechnique('jete'), leaves[0])
>>> spanner.attach(abjad.BowContactPoint((1, 4)), leaves[0])
>>> spanner.attach(abjad.BowContactPoint((3, 4)), leaves[1])
>>> spanner.attach(abjad.BowContactPoint((1, 2)), leaves[2])
>>> spanner.attach(abjad.BowMotionTechnique('circular'),
...     leaves[3])
>>> spanner.attach(abjad.BowContactPoint((1, 1)), leaves[3])
>>> spanner.attach(abjad.BowContactPoint((0, 1)), leaves[4])
>>> abjad.attach(abjad.Clef('percussion'), staff[0])
>>> abjad.override(staff).bar_line.transparent = True
>>> abjad.override(staff).dots.staff_position = -8
>>> abjad.override(staff).flag.Y_offset = -8.5
>>> abjad.override(staff).glissando.bound_details__left__padding = 1.5
>>> abjad.override(staff).glissando.bound_details__right__padding = 1.5
>>> abjad.override(staff).glissando.thickness = 2
>>> abjad.override(staff).script.staff_padding = 3
>>> abjad.override(staff).staff_symbol.transparent = True
>>> abjad.override(staff).stem.direction = Down
>>> abjad.override(staff).stem.length = 8
>>> abjad.override(staff).stem.stem_begin_position = -9
>>> abjad.override(staff).time_signature.stencil = False
>>> show(staff) 

Use abjad.BowContactPoint(None) to indicate unbowed actions, such as pizzicato:

>>> staff = abjad.Staff()
>>> staff.extend(r"c'4 c'4 c'4 c'4")
>>> leaves = abjad.select(staff).by_leaf()
>>> spanner = abjad.BowContactSpanner()
>>> abjad.attach(spanner, leaves)
>>> spanner.attach(abjad.BowContactPoint(None), leaves[0])
>>> spanner.attach(abjad.BowContactPoint((3, 4)), leaves[1])
>>> spanner.attach(abjad.BowContactPoint((1, 2)), leaves[2])
>>> spanner.attach(abjad.BowContactPoint(None), leaves[3])
>>> abjad.attach(abjad.Clef('percussion'), staff[0])
>>> abjad.override(staff).bar_line.transparent = True
>>> abjad.override(staff).dots.staff_position = -8
>>> abjad.override(staff).flag.Y_offset = -8.5
>>> abjad.override(staff).glissando.bound_details__left__padding = 1.5
>>> abjad.override(staff).glissando.bound_details__right__padding = 1.5
>>> abjad.override(staff).glissando.thickness = 2
>>> abjad.override(staff).script.staff_padding = 3
>>> abjad.override(staff).staff_symbol.transparent = True
>>> abjad.override(staff).stem.direction = Down
>>> abjad.override(staff).stem.length = 8
>>> abjad.override(staff).stem.stem_begin_position = -9
>>> abjad.override(staff).time_signature.stencil = False
>>> show(staff) 

Lineage

digraph InheritanceGraph { graph [background=transparent, bgcolor=transparent, color=lightslategrey, fontname=Arial, outputorder=edgesfirst, overlap=prism, penwidth=2, rankdir=LR, root="__builtin__.object", splines=spline, style="dotted, rounded", truecolor=true]; node [colorscheme=pastel19, fontname=Arial, fontsize=12, penwidth=2, style="filled, rounded"]; edge [color=lightsteelblue2, penwidth=2]; subgraph cluster_abctools { graph [label=abctools]; "abjad.tools.abctools.AbjadObject.AbjadObject" [color=1, group=0, label=AbjadObject, shape=box]; "abjad.tools.abctools.AbjadObject.AbstractBase" [color=1, group=0, label=AbstractBase, shape=box]; "abjad.tools.abctools.AbjadObject.AbstractBase" -> "abjad.tools.abctools.AbjadObject.AbjadObject"; } subgraph cluster_spannertools { graph [label=spannertools]; "abjad.tools.spannertools.BowContactSpanner.BowContactSpanner" [color=black, fontcolor=white, group=2, label=<<B>BowContactSpanner</B>>, shape=box, style="filled, rounded"]; "abjad.tools.spannertools.Spanner.Spanner" [color=3, group=2, label=Spanner, shape=box]; "abjad.tools.spannertools.Spanner.Spanner" -> "abjad.tools.spannertools.BowContactSpanner.BowContactSpanner"; } subgraph cluster_builtins { graph [label=builtins]; "builtins.object" [color=2, group=1, label=object, shape=box]; } "abjad.tools.abctools.AbjadObject.AbjadObject" -> "abjad.tools.spannertools.Spanner.Spanner"; "builtins.object" -> "abjad.tools.abctools.AbjadObject.AbstractBase"; }

Bases

Attribute summary

attach(indicator, leaf) Attaches indicator to leaf in spanner.
components Gets leaves in spanner.
name Gets spanner name.
overrides Gets overrides.
__contains__(argument) Is true when spanner contains argument.
__copy__(*arguments) Copies spanner.
__eq__(argument) Is true when ID of argument equals ID of Abjad object.
__format__([format_specification]) Formats Abjad object.
__getitem__(argument) Gets item or slice identified by argument.
__hash__() Hashes Abjad object.
__len__() Gets number of components in spanner.
__lt__(argument) Is true when spanner is less than argument.
__ne__(argument) Is true when Abjad object does not equal argument.
__repr__() Gets interpreter representation of Abjad object.

Read-only properties

(Spanner).components

Gets leaves in spanner.

Returns selection of leaves.

(Spanner).name

Gets spanner name.

Returns string.

(Spanner).overrides

Gets overrides.

Returns dictionary.

Methods

BowContactSpanner.attach(indicator, leaf)

Attaches indicator to leaf in spanner.

Returns none.

Special methods

(Spanner).__contains__(argument)

Is true when spanner contains argument. Otherwise false.

Returns true or false.

(Spanner).__copy__(*arguments)

Copies spanner.

Does not copy spanner components.

Returns new spanner.

(AbjadObject).__eq__(argument)

Is true when ID of argument equals ID of Abjad object. Otherwise false.

Returns true or false.

(AbjadObject).__format__(format_specification='')

Formats Abjad object.

Set format_specification to ‘’ or ‘storage’. Interprets ‘’ equal to ‘storage’.

Returns string.

(Spanner).__getitem__(argument)

Gets item or slice identified by argument.

Returns component.

(AbjadObject).__hash__()

Hashes Abjad object.

Required to be explicitly redefined on Python 3 if __eq__ changes.

Returns integer.

(Spanner).__len__()

Gets number of components in spanner.

Returns nonnegative integer.

(Spanner).__lt__(argument)

Is true when spanner is less than argument. Otherwise false.

Trivial comparison to allow doctests to work.

Returns true or false.

(AbjadObject).__ne__(argument)

Is true when Abjad object does not equal argument. Otherwise false.

Returns true or false.

(AbjadObject).__repr__()

Gets interpreter representation of Abjad object.

Returns string.