---
title: vImage_PerpsectiveTransform.QuadrilateralPoints
framework: accelerate
role: symbol
role_heading: Type Alias
path: accelerate/vimage_perpsectivetransform/quadrilateralpoints
---

# vImage_PerpsectiveTransform.QuadrilateralPoints

A tuple of four points that define a quadrilateral.

## Declaration

```swift
typealias QuadrilateralPoints = (CGPoint, CGPoint, CGPoint, CGPoint)
```