---
title: horizontal
framework: arkit
role: symbol
role_heading: Type Property
path: arkit/arworldtrackingconfiguration/planedetection-swift.struct/horizontal
---

# horizontal

The session detects planar surfaces that are perpendicular to gravity.

## Declaration

```swift
static var horizontal: ARWorldTrackingConfiguration.PlaneDetection { get }
```

## See Also

### Plane Detection Options

- [vertical](arkit/arworldtrackingconfiguration/planedetection-swift.struct/vertical.md)
- [vertical](arkit/arworldtrackingconfiguration/planedetection-swift.struct/vertical.md)