### 3.1.7 AmbitusLine

AmbitusLine objects are created by: Ambitus_engraver.

Standard settings:

> `gap` (dimension, in staff space):

>   `ambitus-line::calc-gap`

>   Size of a gap in a variable symbol.

> `length-fraction` (number):

>   `0.7`

>   Multiplier for lengths. Used for determining ledger lines and stem lengths.

> `maximum-gap` (number):

>   `0.45`

>   Maximum value allowed for `gap` property.

> `stencil` (stencil):

>   `ambitus::print`

>   The symbol to print.

> `thickness` (number):

>   `2`

>   Line thickness, generally measured in `line-thickness`.

> `X-offset` (number):

>   `ly:self-alignment-interface::centered-on-x-parent`

>   The horizontal amount that this object is moved relative to its X-parent.

This object supports the following interface(s): ambitus-interface, font-interface, grob-interface and item-interface.

#### Internals Reference v2.18.2 (稳定分支).