使用核心图的泡沫图，散点图，烛台图

Question

我的一个ipad项目需要有8种图形和图表，其中包括3个变量泡泡图，散点图，烛台图等等。快速搜索给出了我作为核心图的结果这是目前ios中图形和图表最常用的解决方案。但是当我进入页面时，我没有看到任何类型的气泡图或散点图实现。我的问题是..

• 是否有可能画出3可变气泡图，散点图或烛台图中coreplot ??或我需要使用芯图形绘制整个图形？

在此先感谢

Answer 1

核心地块原生支持散点图和K线图。通过使用散点图的自定义绘图符号和改变绘图符号的大小来表示第三个变量，您可以轻松制作气泡图。

如果你想只实现 散点图这里

Answer 2

是在迅速3.1的Xcode 8.3.2

func setChart(dataPoints:[String] , value1 :[Double] , value2:[Double]) 
{ 
    var dataEntries1:[ChartDataEntry] = [] 

    for i in 0..<dataPoints.count { 
     let dataEntry = ChartDataEntry(x:value1[i] , y : Double(i)) 
     dataEntries1.append(dataEntry) 
    } 

    var dataEntries2:[ChartDataEntry] = [] 

    for i in 0..<dataPoints.count { 
     let dataEntry = ChartDataEntry(x:value2[i] , y : Double(i)) 
     dataEntries2.append(dataEntry) 
    } 

    let dataSet1 = ScatterChartDataSet(values: dataEntries1, label: "Value1") 
    dataSet1 .setColor(UIColor.blue) 
    let dataSet2 = ScatterChartDataSet(values: dataEntries2 ,label: "Value2") 
    dataSet2.setColor(UIColor.green) 

    var dataSets = [ScatterChartDataSet]() 
    dataSets.append(dataSet1) 
    dataSets.append(dataSet2) 

    let barChartData = ScatterChartData(dataSets: dataSets) 

    scatterChart.xAxis.labelPosition = .bottom 
    scatterChart.rightAxis.enabled=false 
    scatterChart.legend.enabled=false 
    scatterChart.descriptionText = "" 
    scatterChart.data = barChartData 

} 

Answer 3

这里工作得很好的代码添加到里面气泡图代码你应用

这个代码在雨燕3.1和Xcode中8.3.2

func setBubbleChart(dataPoints: [Int], values: [Int], amounts: [Int]) { 

     var dataEntries: [BubbleChartDataEntry] = [] 

     for i in 0..<dataPoints.count { 
      let dataEntry = BubbleChartDataEntry(x: Double(dataPoints[i]), y: Double(values[i]), size: 15.0) 
      dataEntries.append(dataEntry) 
     } 

     let format = NumberFormatter() 
     format.generatesDecimalNumbers = false 
     format.zeroSymbol = "" 
     _ = DefaultValueFormatter(formatter: format) 

     let chartDataSet = BubbleChartDataSet(values: dataEntries, label: "Prashant") 
     let chartData = BubbleChartData(dataSet: chartDataSet) 



     chartDataSet.colors.append(setColor(value:30)) 

     bubbleChartView.doubleTapToZoomEnabled = true 
     bubbleChartView.scaleXEnabled = true 
     bubbleChartView.scaleYEnabled = true 
     bubbleChartView.highlightPerTapEnabled = true 
     bubbleChartView.highlightPerDragEnabled = true 

     let firstLegend = LegendEntry.init(label: "Below 50", form: .default, formSize: CGFloat.nan, formLineWidth: CGFloat.nan, formLineDashPhase: CGFloat.nan, formLineDashLengths: nil, formColor: UIColor.black) 
     let secondLegend = LegendEntry.init(label: "Between 50 and 75", form: .default, formSize: CGFloat.nan, formLineWidth: CGFloat.nan, formLineDashPhase: CGFloat.nan, formLineDashLengths: nil, formColor: UIColor.black) 
     let thirdLegend = LegendEntry.init(label: "Over 75", form: .default, formSize: CGFloat.nan, formLineWidth: CGFloat.nan, formLineDashPhase: CGFloat.nan, formLineDashLengths: nil, formColor: UIColor.black) 

     bubbleChartView.chartDescription = nil 
     bubbleChartView.legend.entries = [firstLegend, secondLegend, thirdLegend] 
     bubbleChartView.data = chartData 
     bubbleChartView.drawBordersEnabled = true 
     bubbleChartView.animate(xAxisDuration: 5.0, yAxisDuration: 5.0) 

     let xAxis: XAxis = bubbleChartView.xAxis 
     xAxis.drawAxisLineEnabled = true 
     xAxis.drawGridLinesEnabled = true 
     xAxis.drawLabelsEnabled = true 
     xAxis.axisMinimum = 0 
     xAxis.axisMaximum = 10 

     let leftAxis: YAxis = bubbleChartView.leftAxis 
     leftAxis.drawAxisLineEnabled = true 
     leftAxis.drawGridLinesEnabled = true 
     leftAxis.setLabelCount(2, force: true) 
     leftAxis.axisMinimum = 0 
     leftAxis.axisMaximum = 120 

     let rightAxis: YAxis = bubbleChartView.rightAxis 
     rightAxis.drawAxisLineEnabled = false 
     rightAxis.drawGridLinesEnabled = true 
     rightAxis.drawLabelsEnabled = false 
    }