iOS 图表，波浪线

Question

开门见山：我开始使用 Daniel Gindi 的 iOS 图表，但我无法在折线图中重现这些波浪线

（请注意，这张图片是从 iOS 图表的存储库中挑选的！）

我得到的只是这样，没有曲线的简单直线

这是我在 viewDidLoad 中用来展示的代码：

    let ys1 = Array(1..<10).map { x in return sin(Double(x) / 2.0 / 3.141 * 1.5) }
    let ys2 = Array(1..<10).map { x in return cos(Double(x) / 2.0 / 3.141) }

    let yse1 = ys1.enumerated().map { x, y in return ChartDataEntry(x: Double(x), y: y) }
    let yse2 = ys2.enumerated().map { x, y in return ChartDataEntry(x: Double(x), y: y) }

    let data = LineChartData()
    let ds1 = LineChartDataSet(values: yse1, label: "Hello")
    ds1.colors = [NSUIColor.red]
    ds1.drawCirclesEnabled = false
    ds1.drawValuesEnabled = false
    data.addDataSet(ds1)

    let ds2 = LineChartDataSet(values: yse2, label: "World")
    ds2.colors = [NSUIColor.blue]
    ds2.drawCirclesEnabled = false
    ds2.drawValuesEnabled = false
    data.addDataSet(ds2)
    self.viewChart.data = data

    self.viewChart.gridBackgroundColor = NSUIColor.white

    self.viewChart.chartDescription?.text = "Linechart Demo"

有人可以帮助我吗？谢谢！

Answer 1

请检查：

let ds1 = LineChartDataSet(values: yse1, label: "Hello")
ds1.colors = [NSUIColor.red]
ds1.drawCirclesEnabled = false
ds1.drawValuesEnabled = false
ds1.mode = .cubicBezier // add this line
data.addDataSet(ds1)

let ds2 = LineChartDataSet(values: yse2, label: "World")
ds2.colors = [NSUIColor.blue]
ds2.drawCirclesEnabled = false
ds2.drawValuesEnabled = false
ds2.mode = .cubicBezier // add this line
data.addDataSet(ds2)

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