> ## Documentation Index
> Fetch the complete documentation index at: https://docs.stac.dev/llms.txt
> Use this file to discover all available pages before exploring further.

# Border Radius

> Documentation for Border Radius

# Border Radius

StacBorderRadius allows you to build the Flutter BorderRadius class using JSON.
To know more about the BorderRadius class in Flutter, refer to the [official documentation](https://api.flutter.dev/flutter/painting/BorderRadius-class.html).

## Properties

| Property | Type                   | Description                                                        |
| -------- | ---------------------- | ------------------------------------------------------------------ |
| radius   | `double?`              | Defines the border Radius for all corners to be painted.           |
| radius   | `Map<String, double>?` | Defines the border Radius of each corner to be painted explicitly. |
| radius   | `List<double>?`        | Defines the border Radius of each corner to be painted explicitly. |

:::note

Above three properties defined are optional. i.e. `StacBorderRadius` can be defined using one of the above 3 methods.

:::

## Example

### Generic Declaration

<CodeGroup>
  ```dart Dart theme={null}
  StacBorderRadius.all(16.0)
  ```

  ```json JSON theme={null}
  {
      "borderRadius": 16.0
  }
  ```
</CodeGroup>

### Explicit Declaration (Object)

<CodeGroup>
  ```dart Dart theme={null}
  StacBorderRadius(
    topLeft: 16.0,
    topRight: 16.0,
    bottomLeft: 16.0,
    bottomRight: 16.0,
  )
  ```

  ```json JSON theme={null}
  {
      "borderRadius": {
          "topLeft": 16.0,
          "topRight": 16.0,
          "bottomLeft": 16.0,
          "bottomRight": 16.0
      }
  }
  ```
</CodeGroup>

### Explicit Declaration (List)

<CodeGroup>
  ```dart Dart theme={null}
  StacBorderRadius.only(
    topLeft: 16.0,
    topRight: 16.0,
    bottomLeft: 16.0,
    bottomRight: 16.0,
  )
  ```

  ```json JSON theme={null}
  {
      "borderRadius": [16.0, 16.0, 16.0, 16.0]
  }
  ```
</CodeGroup>