---
title: bartackFractionAlong
---
The `bartackFractionAlong` macro allows you to add a _bartack_ marker to your
sewing pattern. More specifically, a bartack along a fraction of a path.
It is provided by [plugin-annotations](/reference/plugins/annotations), which is
part of [core-plugins](/reference/plugins/core) (so it is available by default).
## Signature
```js
macro('bartackFractionAlong', {
String id="bartack",
Number angle=0,
Number density=3,
Number end=1,
Number length=15,
Path path,
String prefix='',
Number start=0,
String suffix='',
Number width=3,
Boolean force = false,
})
```
## Example
<Example caption="Example of the bartackFractionAlong macro">
```js
({ Point, Path, macro, part }) => {
macro('bartackFractionAlong', {
path: new Path()
.move(new Point(15,15))
.curve(
new Point(20, 20),
new Point(30, 20),
new Point(35, 15),
),
start: 0.2,
end: 0.8,
})
return part
}
```
</Example>
## Configuration
| Property | Default | Type | Description |
|-------------:|------------|------------|-------------|
| `angle` | `0` | `number` | The angle under which to draw the bartack |
| `density` | `3` | `number` | Controls how close the stitches are together |
| `end` | `1` | `number` | At which fraction of the path length (from `0` to `1`) should the bartack end |
| `length` | `15` | `number` | Length of the bartack |
| `path` | | `Path` | The path the bartack should follow |
| `prefix` | | `string` | A prefix to apply to the name of the generated path |
| `start` | `0` | `number` | At which fraction of the path length (from `0` to `1`) should the bartack start |
| `suffix` | | `string` | A suffix to apply to the name of the generated path |
| `width` | `3` | `number` | Width of the bartack |
| `force` | `false` | `boolean` | Set this to `true` to display the macro output even when `complete` is `false` |
## Notes
This macro takes the `complete` setting into account and won't output anything when both complete and `force` are `false`.
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