Set was undefined, CGFloat Array wrong type

Had some initial build problems. I’m new to iOS and xcode, so maybe its my fault, but I think the project should build out of the box. That’s what my changes should provide.

Not sure if this is a problem, or if I missed something. But if I try to display data that is greater than 99 then there does not seem to be enough room on the axis to show it. I will have Y values that will be over 10,000. Any suggestions?

LineChart.swift:

1. In: // LineChart class class LineChart: UIControl {

Error: LineChart.swift:29:7: Class 'LineChart' does not implement its superclass's required members

1. In: /**
2. Fill area between charts. */ func drawAreaBetweenLineCharts() { . . . . . . CGContextSetFillColorWithColor(context, positiveAreaColor.CGColor)

Error: LineChart.swift:459:23: 'ClosedInterval' does not have a member named 'Generator'

DotCALayer.swift: 3. In: class DotCALayer: CALayer {

Error: DotCALayer.swift:5:7: Class 'DotCALayer' does not implement its superclass's required members

Hi,

Issue : 1 I'm trying to integrate swift-linechart with one of my projects (in Xcode 6.2). It's working fine with Xcode 6.3 beta. But when I'm trying with Xcode 6.2 there are some compatibility issues. I resolved most of them but this particular one I'm not able to. When I recreate the same scenario in Playground it works fine. I did checkout your old commits but couldn't resolve the issue

Can you help me with this ?

Issue : 2 By default Y- axis label for range after 100 becomes becomes "..."

Hello, I've been experimenting with your Swift files to create a graph on an existing UIView layer, but can't seem to get it to work.

I tried to adding the lines of the graph during viewWillLayoutSubviews, but I keep getting error on:

layer.strokeColor = colors[lineIndex].CGColor

in drawLine() in LineChart.swift file.

"fatal error: Cannot index empty buffer"

Is there any other way that I can plot graphs without having to initialise a LineChart instance manually?

I'm trying to create a line graph similar to the one Robinhood uses:

But when I remove the axises and set their insets to 0 it still seems to have padding. Any idea what is going on?

When using nib or storyboard to create custom view with class 'LineChart', then only "init(coder aDecoder: NSCoder)" is called, not "init(frame: CGRect)". This means the initialization code for "self.colors" is never called and app will crash during "drawLine" at "layer.strokeColor = colors[lineIndex].CGColor"

I am getting

Terminating app due to uncaught exception 'CALayerInvalidGeometry', reason: 'CALayer position contains NaN: [nan 30]'

when i try to draw a chart with only 1 point on it.

 func drawDataDots(xAxis: Array<CGFloat>, yAxis: Array<CGFloat>, lineIndex: Int) {
    var dots: Array<DotCALayer> = []
    for index in 0..<xAxis.count {
        var xValue = xAxis[index] + axisInset - outerRadius/2
        var yValue = self.bounds.height - yAxis[index] - axisInset - outerRadius/2

        // draw custom layer with another layer in the center
        var dotLayer = DotCALayer()
        dotLayer.dotInnerColor = colors[lineIndex]
        dotLayer.innerRadius = innerRadius
        dotLayer.backgroundColor = dotsBackgroundColor.CGColor
        dotLayer.cornerRadius = outerRadius / 2
        dotLayer.frame = CGRect(x: xValue, y: yValue, width: outerRadius, height: outerRadius) 
        self.layer.addSublayer(dotLayer)
        dots.append(dotLayer)

        // animate opacity
        if animationEnabled {
            var animation = CABasicAnimation(keyPath: "opacity")
            animation.duration = animationDuration
            animation.fromValue = 0
            animation.toValue = 1
            dotLayer.addAnimation(animation, forKey: "opacity")
        }

    }
    dotsDataStore.append(dots)
}

dotLayer.frame = CGRect(x: xValue, y: yValue, width: outerRadius, height: outerRadius) is the line throwing the error

Hello! When I first time invoke addLine function it works great (line appears with animation), but when I try add second line by invoking the same addLine function, first line appears with animation but second line and other appear without animation. `@IBAction func addLine(_ sender: UIButton) {

    let data2: [CGFloat] = [1, 3, 5, 13, 17, 20]
    lineChart.colors.append(UIColor.cyan)
    lineChart.addLine(data2) // add second line
    
}
override func viewDidLoad() {
    super.viewDidLoad()
    
    
    label.text = "..."
    label.translatesAutoresizingMaskIntoConstraints = false
    label.textAlignment = NSTextAlignment.center
    self.view.addSubview(label)
    
    // simple arrays
    let data: [CGFloat] = [3, 4, 2, 11, 13, 15]
    
    
    // simple line with custom x axis labels
    let xLabels: [String] = ["Jan", "Feb", "Mar", "Apr", "May", "Jun"]
    
    //lineChart = LineChart()
    lineChart.animation.enabled = true
    lineChart.area = true
    lineChart.x.labels.visible = true
    lineChart.x.grid.count = 10
    lineChart.y.grid.count = 10
    lineChart.x.labels.values = xLabels
    lineChart.y.labels.visible = true
    lineChart.addLine(data) //add first line
    
    lineChart.dots.outerRadius = 6
    lineChart.dots.innerRadius = 4
    
    lineChart.colors = [UIColor.black]
    
    lineChart.translatesAutoresizingMaskIntoConstraints = false
    lineChart.delegate = self
    // Do any additional setup after loading the view, typically from a nib.
}`

When I use open func clear(), I get an index out of bound error on the first line of fileprivate var drawingWidth. What is the best way to clear just the lines and the dots, but keep the axis and labels?

Hi Zemirco, i've follow your instructions for install LineCharts into my project. But when i put LineChart.swift into my project at line path = layer.path i've this error:

LineChart.swift:799:26: 'path' is unavailable: APIs deprecated as of iOS 7 and earlier are unavailable in Swift

Can i solve it?

Thanks and Regards