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# center

The center point of the world map’s space-mapping data, relative to the world coordinate origin of the session the map was recorded in.

```
var center: simd_float3 { get }
```

## Discussion

The [`extent`](/documentation/ARKit/ARWorldMap/extent) and [`center`](/documentation/ARKit/ARWorldMap/center) properties together define a bounding box for the data recorded in the world map.

---

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