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# RectangleObservation

An object that represents the four vertices of a detected rectangle.

```
struct RectangleObservation
```

## Topics

### Creating an observation

[`init(_:)`](/documentation/Vision/RectangleObservation/init(_:))

Creates a rectangle observation.

[`init(topLeft:topRight:bottomRight:bottomLeft:)`](/documentation/Vision/RectangleObservation/init(topLeft:topRight:bottomRight:bottomLeft:))

Creates a rectangle observation from its corner points.

### Inspecting an observation

[`RequestDescriptor`](/documentation/Vision/RequestDescriptor)

A type that describes the request and revision combination.

## Relationships

### Conforms To

[`BoundingBoxProviding`](/documentation/Vision/BoundingBoxProviding)

[`QuadrilateralProviding`](/documentation/Vision/QuadrilateralProviding)

[`Escapable`](/documentation/Swift/Escapable)

[`CustomStringConvertible`](/documentation/Swift/CustomStringConvertible)

[`Equatable`](/documentation/Swift/Equatable)

[`SendableMetatype`](/documentation/Swift/SendableMetatype)

[`Encodable`](/documentation/Swift/Encodable)

[`Sendable`](/documentation/Swift/Sendable)

[`Copyable`](/documentation/Swift/Copyable)

[`VisionObservation`](/documentation/Vision/VisionObservation)

[`Decodable`](/documentation/Swift/Decodable)

[`Hashable`](/documentation/Swift/Hashable)

---

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