SwiftCubicSpline

Usage

To run the example project, clone the repo, and run pod install from the Example directory first.

Requirements

Installation

SwiftCubicSpline is available through CocoaPods. To install it, simply add the following line to your Podfile:

pod "SwiftCubicSpline"

Example

        let spline = CubicSpline(points: [
            CGPoint(x: 0.0, y: 0.5),
            CGPoint(x: 0.1, y: 0.5),
            CGPoint(x: 0.2, y: 0.7),
            CGPoint(x: 0.4, y: 0.3),
            CGPoint(x: 0.6, y: 0.6),
            CGPoint(x: 0.8, y: 0.4),
            CGPoint(x: 0.9, y: 0.5),
            CGPoint(x: 1.0, y: 0.5)
            ])

        let graphSize = self.bounds.size
        for x in 0 ..< Int(graphSize.height) {
            let y = spline.interpolate(CGFloat(x)/graphSize.height)*graphSize.width
            if x == 0 {
                CGContextMoveToPoint(context, CGFloat(y), CGFloat(x));
            } else {
                CGContextAddLineToPoint(context, CGFloat(y), CGFloat(x));
            }
        }

Author

giordano scalzo, giordano.scalzo@gmail.com

Credits

Based and relying on SAMCubicSpline bye Sam Soffes

License

SwiftCubicSpline is available under the MIT license. See the LICENSE file for more info.