---
title: round
---
The `round` macro creates a rounded corner.
It is provided by [plugin-round](/reference/plugins/round), which is
part of [core-plugins](/reference/plugins/core) (so it is available by default).
## Signature
```js
macro('round', {
String id = 'round',
String class,
Point from,
Boolean hide,
String prefix,
Number radius,
Point to,
Point via,
})
```
## Example
<Example caption="An example of the round macro">
```js
({ Point, points, macro, part }) => {
macro('round', {
from: new Point(0, 0),
to: new Point(100, 40),
via: new Point(100, 0),
radius: 30,
hide: false,
})
return part
}
```
</Example>
## Configuration
| Property | Default | Type | Description |
|------------:|---------|---------------------|-------------|
| `id` | `round` | `string` | The ID of this macro instance |
| `from` | | [Point](/reference/api/point) | The startpoint towards the corner to round |
| `to` | | [Point](/reference/api/point) | The endpoint away from the corner to round |
| `via` | | [Point](/reference/api/point) | The cornerpoint to round |
| `radius` | Maximum | Number | The radius in mm if not the maximum possible |
| `prefix` | | String | A prefix to give to the points and paths created by this macro |
| `hide` | `true` | Boolean | Whether to hide the path created by this macro |
| `class` | | String | Class(es) to assign to the path created by this macro |
## Notes
This macro is only intended for 90 degree corners.
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