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# ar_plane_classification_t

The kinds of object classification a plane anchor can have.

```
typedef enum { ... } ar_plane_classification_t;
```

## Topics

### Getting known classifications

[`ar_plane_classification_ceiling`](/documentation/ARKit/ar_plane_classification_t/ar_plane_classification_ceiling)

A ceiling.

[`ar_plane_classification_door`](/documentation/ARKit/ar_plane_classification_t/ar_plane_classification_door)

A door.

[`ar_plane_classification_floor`](/documentation/ARKit/ar_plane_classification_t/ar_plane_classification_floor)

A floor.

[`ar_plane_classification_seat`](/documentation/ARKit/ar_plane_classification_t/ar_plane_classification_seat)

A seat.

[`ar_plane_classification_table`](/documentation/ARKit/ar_plane_classification_t/ar_plane_classification_table)

A table.

[`ar_plane_classification_wall`](/documentation/ARKit/ar_plane_classification_t/ar_plane_classification_wall)

A wall.

[`ar_plane_classification_window`](/documentation/ARKit/ar_plane_classification_t/ar_plane_classification_window)

A window.

### Getting unknown classifications

[`ar_plane_classification_status_not_available`](/documentation/ARKit/ar_plane_classification_t/ar_plane_classification_status_not_available)

A plane classification is currently unavailable.

[`ar_plane_classification_status_undetermined`](/documentation/ARKit/ar_plane_classification_t/ar_plane_classification_status_undetermined)

A plane classification is undetermined.

[`ar_plane_classification_status_unknown`](/documentation/ARKit/ar_plane_classification_t/ar_plane_classification_status_unknown)

A plane classification isn’t one of the known classes.


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