iOS图表，波浪线

Question

让我们直截了当地说：我开始使用Daniel Gindi的iOS Charts，但我无法在折线图中重现这条波浪线

（请注意，此图片是从iOS图表的存储库中挑选出来的！）

我得到的就是这个简单的直线，没有曲线

这是我用于显示：

的viewDidLoad中的代码

    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"

有人能帮助我吗？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)