Swift：图表填充线及更多

Question

我在 swift 上找到了这个名为：Charts 的库 https://github.com/danielgindi/ios-charts

我尽力添加了一些功能，但对于其他一些功能（列在下面）我不知道该怎么做。任何帮助将不胜感激。

我正在尝试做的事情： - 填充折线图（完成） - 删除坐标处的圆。（完毕） - 删除所有轴条 (Y+X) (todo) - 删除 yAxis 图例（待办事项） - 线上，每 x 次显示值 (todo)

我做了什么：

额外 - 在触摸上方显示 yValue - 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 = ""


}

我正在寻找：删除所有轴条 (Y+X) 删除 yAxis 图例线上，每x次显示值并显示触摸图形时的值。

感谢您的宝贵时间。

Answer 1

要删除所有轴条和图例，您可以这样做：

这是我的代码片段：

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

My Chart

希望对您有所帮助。

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