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import CoreGraphics | |
extension CGRect { | |
init(center: CGPoint, size: CGSize) { | |
self.init(x: center.x - size.width / 2.0, y: center.y - size.height / 2.0, width: size.width, height: size.height) | |
} | |
var center: CGPoint { return CGPoint(x: midX, y: midY) } | |
} | |
extension CGSize { | |
var innerRadius: CGFloat { return min(width, height) / 2.0 } | |
} |
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