<!--
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  "availability" : [
    "MapKit JS: 5.0.0 -"
  ],
  "documentType" : "symbol",
  "framework" : "MapKitJS",
  "identifier" : "/documentation/MapKitJS/CircleOverlay/CircleOverlayConstructor",
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  "role" : "Constructor",
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    "modules" : [
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  "title" : "new CircleOverlay(coordinate, radius, options)"
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-->

# new CircleOverlay(coordinate, radius, options)

Creates a circle overlay with a center coordinate, radius, and style options.

```
constructor(
    coordinate: CoordinateData,
    radius: number,
    options?: OverlayOptions,
);
```

## Parameters

`coordinate`

The required coordinate of the circle’s center.

`radius`

The circle’s required radius, in meters.

`options`

An optional object literal of overlay properties for initializing the circle.

## Discussion

An `options` parameter for a circle overlay resembles the following example:

```javascript
{
    style: new mapkit.Style({
        lineWidth: 2,
        strokeColor: "#999",
        fillColor: "#FFF"
    }),
    data: {
        population: 30500
    },
    enabled: false
}
```

---

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