---
title: "cornerCurveExpansionFactor(_:)"
framework: quartzcore
role: symbol
role_heading: Type Method
path: "quartzcore/calayer/cornercurveexpansionfactor(_:)"
---

# cornerCurveExpansionFactor(_:)

## Declaration

```swift
class func cornerCurveExpansionFactor(_ curve: CALayerCornerCurve) -> CGFloat
```