swift - iOS 图表 条形图组合图表

Question

我正在使用 iOS charts库并尝试制作条形组合图表。

我不确定这是否可能，但我没有看到有关文档的任何限制，因此我假设有这样的选项。

这是我用来添加组合图表的代码:

func createIntegratedChartForStat(stat:String, chart:CombinedChartView){
    chart.noDataText = "You need to provide data for the " + stat + " chart"

    var dataEntriesTotal: [BarChartDataEntry] = []
    var dataEntriesGood: [BarChartDataEntry] = []
    for i in 0..<gamesOrder.count {
        let outFromStat = playersFullData["b"]![stat]![i]
        var splittedData = outFromStat.split(separator: "/")
        let dataEntryTotal = BarChartDataEntry(x: Double(i), y: Double(splittedData[0])!)
        let dataEntryGood = BarChartDataEntry(x: Double(i), y: Double(splittedData[1])!)
        dataEntriesTotal.append(dataEntryTotal)
        dataEntriesGood.append(dataEntryGood)
    }

    let chartDataSetTotal = BarChartDataSet(values: dataEntriesTotal, label: stat + " Attempts")
    let chartDataSetGood = BarChartDataSet(values: dataEntriesGood, label: stat + " Successful")

    let chartData = CombinedChartData(dataSets: [chartDataSetTotal, chartDataSetGood])

    chart.data = chartData
}

我得到的只是这个:

如果我触摸图表，则会出现以下错误:

[Unknown process name] CGAffineTransformInvert: singular matrix.

这可以完成还是我错过了什么？

Answer 1

有可能，我只是错误地将数据添加到组合图表中。添加更新的代码:

func createIntegratedChartForStat(stat:String, chart:CombinedChartView){
    chart.noDataText = "You need to provide data for the " + stat + " chart"

    var dataEntriesTotal: [BarChartDataEntry] = []
    var dataEntriesGood: [BarChartDataEntry] = []
    for i in 0..<gamesOrder.count {
        let outFromStat = playersFullData["b"]![stat]![i]
        var splittedData = outFromStat.split(separator: "/")
        let dataEntryTotal = BarChartDataEntry(x: Double(i), y: Double(splittedData[0])!)
        let dataEntryGood = BarChartDataEntry(x: Double(i), y: Double(splittedData[1])!)
        dataEntriesTotal.append(dataEntryTotal)
        dataEntriesGood.append(dataEntryGood)
    }

    let chartDataSetTotal = BarChartDataSet(values: dataEntriesTotal, label: stat + " Attempts")
    chartDataSetTotal.colors = [NSUIColor .blue]
    let chartDataSetGood = BarChartDataSet(values: dataEntriesGood, label: stat + " Successful")
    chartDataSetGood.colors = [NSUIColor .green]

    let chartData = BarChartData(dataSets: [chartDataSetTotal, chartDataSetGood])

    let data: CombinedChartData = CombinedChartData()
    data.barData = chartData
    chart.data = data
}