---
title: leftPolygonPoints
framework: arkit
role: symbol
role_heading: Instance Property
path: arkit/fieldofviewanchor/leftpolygonpoints
---

# leftPolygonPoints

Left eye polygon boundary points defining the preset field of view.

## Declaration

```swift
var leftPolygonPoints: [simd_float4] { get }
```

## Discussion

Discussion Each point represents a vertex of the polygon boundary, ordered to form a continuous polygon. Points are expressed in the anchor’s coordinate frame.