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# ar_plane_alignment_t

The kinds of alignment — horizontal or vertical — that a plane anchor can have.

```
typedef enum { ... } ar_plane_alignment_t;
```

## Topics

### Getting plane alignment

[`ar_plane_alignment_horizontal`](/documentation/ARKit/ar_plane_alignment_t/ar_plane_alignment_horizontal)

The plane is in a horizontal position.

[`ar_plane_alignment_vertical`](/documentation/ARKit/ar_plane_alignment_t/ar_plane_alignment_vertical)

The plane is in a vertical position.

[`ar_plane_alignment_slanted`](/documentation/ARKit/ar_plane_alignment_t/ar_plane_alignment_slanted)

The plane is in a slanted orientation.

[`ar_plane_alignment_none`](/documentation/ARKit/ar_plane_alignment_t/ar_plane_alignment_none)

The plane doesn’t have an alignment.


---

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