<!--
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  "availability" : [
    "MapKit JS: 5.23.0 -"
  ],
  "documentType" : "symbol",
  "framework" : "MapKitJS",
  "identifier" : "/documentation/MapKitJS/Map/cameraBoundary",
  "metadataVersion" : "0.1.0",
  "role" : "Instance Property",
  "symbol" : {
    "kind" : "Instance Property",
    "modules" : [
      "MapKit JS"
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    "preciseIdentifier" : "instp/mapkit.Map/cameraBoundary"
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  "title" : "cameraBoundary"
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-->

# cameraBoundary

A constraint of the location of the center of the map.

```
get cameraBoundary(): CameraBoundaryDescription | null;
set cameraBoundary(
    cameraBoundary: null | CoordinateRegionData | MapRectData,
);
```

## Return Value

An object containing both [`CoordinateRegion`](/documentation/MapKitJS/CoordinateRegion) and [`MapRect`](/documentation/MapKitJS/MapRect) instances.

## Discussion

Setting this property requires either a [`CoordinateRegion`](/documentation/MapKitJS/CoordinateRegion) or a [`MapRect`](/documentation/MapKitJS/MapRect) instance as a value. Getting the property returns an object containing both [`CoordinateRegion`](/documentation/MapKitJS/CoordinateRegion) and [`MapRect`](/documentation/MapKitJS/MapRect) instances.

## Topics

### Defining a Camera Boundary

[`interface CameraBoundaryDescription`](/documentation/MapKitJS/CameraBoundaryDescription)

An object literal that contains information defining an area on the map.


---

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