Swift：图表填充线及更多

Question

我很快就提出了这个库，叫做：Charts https://github.com/danielgindi/ios-charts

我尽力添加了一些功能，但是对于其他功能（在下面列出），我不知道该怎么做。任何帮助，将不胜感激。

我要执行的操作： -填充折线图（完成）-在坐标处删除圆。（完成）-删除所有轴条（Y + X）（待办事项）-删除yAxis图例（待办事项）-在线上，每x次显示值（待办事项）

我做了什么：

触摸屏上方的yValue 额外显示-基于yValue的渐变填充-动画（完成）

这是我的实际代码：

func setChart(dataPoints: [String], values: [Double]) {

    //print(dataPoints)
    //print(values)
    var dataEntries: [ChartDataEntry] = []

    for i in 0..<dataPoints.count {
        let dataEntry = ChartDataEntry(value: values[i], xIndex: i)
        dataEntries.append(dataEntry)
    }

    //Coloring
    let red = Double(arc4random_uniform(256))
    let green = Double(arc4random_uniform(256))
    let blue = Double(arc4random_uniform(256))
    let color = UIColor(red: CGFloat(red/255), green: CGFloat(green/255), blue: CGFloat(blue/255), alpha: 1)


    let lineChartDataSet = LineChartDataSet(yVals: dataEntries, label: "Temperatures")
    let lineChartData = LineChartData(xVals: dataPoints, dataSet: lineChartDataSet)
    //draw as line
    lineChartDataSet.drawCubicEnabled = true
    //fill graph
    lineChartDataSet.drawFilledEnabled = true
    //color graph
    lineChartDataSet.colors = [color]

    lineChartView.data = lineChartData
    lineChartView.xAxis.labelPosition = .Bottom
    lineChartView.animate(xAxisDuration: 2.0, yAxisDuration: 2.0, easingOption: .EaseInCubic)
    //remove coordinate circles
    lineChartDataSet.drawCirclesEnabled = false
    //remove xAxis line
    lineChartView.xAxis.drawGridLinesEnabled = false
    lineChartView.xAxis.drawAxisLineEnabled = false

    //remove description
    lineChartView.descriptionText = ""


}

我希望：删除所有轴条（Y + X）删除行上的yAxis图例，每x次显示一次值，并在触摸图形时显示该值。

谢谢你的时间。

Answer 1

要删除所有轴条和图例，您可以这样做：

这是我的代码的一部分：

popularityChartView.descriptionText = ""
    popularityChartView.noDataText = Constants.messages.NO_POPULARITY_CHART_DATA
    popularityChartView.noDataTextDescription = ""
    popularityChartView.backgroundColor = UIColor(red:236/255, green:236/255,blue:236/255,alpha:1)

    popularityChartView.xAxis.drawAxisLineEnabled = false
    popularityChartView.xAxis.drawLimitLinesBehindDataEnabled = false
    popularityChartView.xAxis.gridColor = UIColor(red:220/255, green:220/255,blue:220/255,alpha:1)
    popularityChartView.xAxis.gridLineWidth = 0.5
    popularityChartView.xAxis.drawGridLinesEnabled = true
    popularityChartView.xAxis.drawLabelsEnabled = false

    popularityChartView.leftAxis.removeAllLimitLines()
    popularityChartView.leftAxis.drawZeroLineEnabled = false
    popularityChartView.leftAxis.zeroLineWidth = 0
    popularityChartView.leftAxis.drawTopYLabelEntryEnabled = false
    popularityChartView.leftAxis.drawAxisLineEnabled = false
    popularityChartView.leftAxis.drawGridLinesEnabled = false
    popularityChartView.leftAxis.drawLabelsEnabled = false
    popularityChartView.leftAxis.drawLimitLinesBehindDataEnabled = false

    popularityChartView.rightAxis.removeAllLimitLines()
    popularityChartView.rightAxis.drawZeroLineEnabled = false
    popularityChartView.leftAxis.zeroLineWidth = 0
    popularityChartView.rightAxis.drawTopYLabelEntryEnabled = false
    popularityChartView.rightAxis.drawAxisLineEnabled = false
    popularityChartView.rightAxis.drawGridLinesEnabled = false
    popularityChartView.rightAxis.drawLabelsEnabled = false
    popularityChartView.rightAxis.drawLimitLinesBehindDataEnabled = false

我的图表

希望能帮助到你。