### 3.1.116 SystemStartBar

SystemStartBar objects are created by: System_start_delimiter_engraver.

Standard settings:

> `collapse-height` (dimension, in staff space):

>   `5.0`

>   Minimum height of system start delimiter. If equal or smaller, the bracket/brace/line is removed.

> `direction` (direction):

>   `-1`

>   If `side-axis` is `0` (or `X`), then this property determines whether the object is placed `LEFT`, `CENTER` or `RIGHT` with respect to the other object. Otherwise, it determines whether the object is placed `UP`, `CENTER` or `DOWN`. Numerical values may also be used: `UP`=`1`, `DOWN`=`-1`, `LEFT`=`-1`, `RIGHT`=`1`, `CENTER`=`0`.

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

>   `-0.1`

>   Add this much extra space between objects that are next to each other.

> `stencil` (stencil):

>   `ly:system-start-delimiter::print`

>   The symbol to print.

> `style` (symbol):

>   `'bar-line`

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

> `thickness` (number):

>   `1.6`

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

> `X-offset` (number):

>   `ly:side-position-interface::x-aligned-side`

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

This object supports the following interface(s): grob-interface, side-position-interface, spanner-interface and system-start-delimiter-interface.

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