# ObjectAnchor.AxisAlignedBoundingBox Values that describe an axis-aligned bounding box. ``` struct AxisAlignedBoundingBox ``` ## Topics ### Inspecting the bounding box [`var center: SIMD3`](/documentation/ARKit/ObjectAnchor/AxisAlignedBoundingBox/center) The center of the bounding box. [`var extent: SIMD3`](/documentation/ARKit/ObjectAnchor/AxisAlignedBoundingBox/extent) The extent of the bounding box. [`var max: SIMD3`](/documentation/ARKit/ObjectAnchor/AxisAlignedBoundingBox/max) The maximum coordinates for the bounding box. [`var min: SIMD3`](/documentation/ARKit/ObjectAnchor/AxisAlignedBoundingBox/min) Minimum coordinates for the bounding box. ### Operators [`static func == (ObjectAnchor.AxisAlignedBoundingBox, ObjectAnchor.AxisAlignedBoundingBox) -> Bool`](/documentation/ARKit/ObjectAnchor/AxisAlignedBoundingBox/==(_:_:)) Returns a Boolean value indicating whether two axis-aligned bounding boxes are equal. ## Relationships ### Conforms To [`Sendable`](/documentation/Swift/Sendable) [`Equatable`](/documentation/Swift/Equatable) [`SendableMetatype`](/documentation/Swift/SendableMetatype) --- Copyright © 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)