Draw a line graph with CoreGraphics in Swift. This code is intended to be an example of how you could use CoreGraphics to draw graphs and other similar UI elements.
MIT License
Draw a line graph with CGPath and Swift. This is really just the result of playing with Swift, and so I can't garuntee the code is production ready, or even very good.
// GraphView.swift example usage
let myData = [
["Mon" : 15],
["Tues" : 30],
["Weds" : 7],
["Thurs" : 60],
["Fri" : 30],
["Sat" : 15],
["Sun" : 45]
]
let graph = GraphView(frame: CGRect(x: 50, y: 50, width: 420, height: 200), data: myData)
self.view.addSubview(graph)
There isn't really that many. The GraphView
has a style
property, the value of which is a GraphStyle
struct which can be overriden.
struct GraphStyle {
struct labels {
var font = UIFont.systemFont(ofSize: 10)
var color = UIColor.black
}
struct colors {
var xAxis = UIColor.black
var yAxis = UIColor.black
var lines = UIColor.lightGray
var graph = UIColor.black
}
var colors = colors()
var labels = labels()
var showLines = true
var showPoints = true
var xMargin : CGFloat = 20
}