Rough (Swift)

Rough lets you draw in a sketchy, hand-drawn-like, style. It is Swift clone of Rough.js. The library defines primitives to draw lines, curves, arcs, polygons, circles, and ellipses.

Requirements

Xcode 9, iOS 10

Installation

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

pod 'Rough'

Usage

let canvas = roughView.canvas
canvas.rectangle(origin: CGPoint(x: 10, y: 10), width: 200, height: 100)
roughView.setNeedsDisplay()

Lines and Ellipses

canvas.circle(center: CGPoint(x: 80, y: 120), radius: 25)
canvas.ellipse(center: CGPoint(x: 300, y: 100), width: 150, height: 80)
canvas.line(from: CGPoint(x: 80, y: 120), to: CGPoint(x: 300, y: 100))

Filling

canvas.circle(center: CGPoint(x: 50, y: 50), radius: 40) { options in
    options.fill = UIColor.red
} // fill with red hachure

canvas.rectangle(origin: CGPoint(x: 120, y: 15), width: 80, height: 80) { options in
    options.fill = UIColor.red
}

canvas.circle(center: CGPoint(x: 50, y: 150), radius: 40) {
    options in
    options.fill = UIColor(red: 10/255.0, green: 150/255.0, blue: 10/255.0, alpha: 1.0)
    options.fillWeight = 3 // thicker lines for hachure
}

canvas.rectangle(origin: CGPoint(x: 220, y: 15), width: 80, height: 80) { options in
    options.fill = UIColor.red
    options.hachureAngle = 60 // angle of hachure
    options.hachureGap = 8
}

canvas.rectangle(origin: CGPoint(x: 120, y: 105), width: 80, height: 80) { options in
    options.fill = UIColor(red: 1.0, green: 0, blue: 200/255.0, alpha: 0.2)
    options.fillStyle = .solid // solid fill
}

Sketching style

canvas.rectangle(origin: CGPoint(x: 15, y: 15), width: 80, height: 80) { options in
    options.roughness = 0.5
    options.fill = UIColor.red
}

canvas.rectangle(origin: CGPoint(x: 120, y: 15), width: 80, height: 80) { options in
    options.roughness = 2.8
    options.fill = UIColor.blue
}

canvas.rectangle(origin: CGPoint(x: 220, y: 15), width: 80, height: 80) { options in
    options.bowing = 6
    options.stroke = UIColor.green
    options.strokeWidth = 3
}

SVG Path

TODO

Example

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

Credits

Credits to Rough.js by Preet

License

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