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# ChairBackType

Types of chair back the framework identifies in a captured room.

```
enum ChairBackType
```

## Overview

When the framework observes a chair in the physical environment during a scan, it chooses a type among these options that best matches the look of the chair’s back.
The framework adds that instance of this enum to the [`attributes`](/documentation/RoomPlan/CapturedRoom/Object/attributes) array for the object (see [`objects`](/documentation/RoomPlan/CapturedRoom/objects)) that represents the chair in the captured room.

## Topics

### Choosing a chair back type

[`case existing`](/documentation/RoomPlan/ChairBackType/existing)

A type of chair that has a back.

[`case missing`](/documentation/RoomPlan/ChairBackType/missing)

A type of chair that has no back.

### Identifying a chair back type

### Categorizing a chair back type

### Creating a chair back type

## Relationships

### Conforms To

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

[`CapturedRoomAttribute`](/documentation/RoomPlan/CapturedRoomAttribute)

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

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

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

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

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

---

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