如何在Coreplot中实现心率监视器样式图

import CorePlot

// 创建图表容器
let graph = CPTXYGraph(frame: CGRect(x: 0, y: 0, width: 300, height: 200))

// 设置图表属性
graph.paddingLeft = 20
graph.paddingTop = 20
graph.paddingRight = 20
graph.paddingBottom = 20

// 创建心率曲线
let plot = CPTScatterPlot()
plot.dataLineStyle = CPTMutableLineStyle()
plot.dataLineStyle?.lineWidth = 2.0
plot.dataLineStyle?.lineColor = CPTColor.blue()

// 创建坐标轴
let axisSet = graph.axisSet as! CPTXYAxisSet
let xAxis = axisSet.xAxis
let yAxis = axisSet.yAxis

// 设置坐标轴属性
xAxis.majorIntervalLength = 10
xAxis.minorTicksPerInterval = 1
yAxis.majorIntervalLength = 10
yAxis.minorTicksPerInterval = 1

// 创建坐标轴标签样式
let textStyle = CPTMutableTextStyle()
textStyle.fontSize = 12
textStyle.color = CPTColor.black()

// 设置坐标轴标签样式
xAxis.labelTextStyle = textStyle
yAxis.labelTextStyle = textStyle

// 创建数据点样式
let symbol = CPTPlotSymbol()
symbol.symbolType = .ellipse
symbol.size = CGSize(width: 6, height: 6)
symbol.fill = CPTFill(color: CPTColor.red())

// 添加心率曲线到图表容器
graph.add(plot)

// 添加坐标轴到图表容器
graph.axisSet = axisSet

// 添加数据点样式到心率曲线
plot.plotSymbol = symbol

// 将图表容器设置为图表视图的hostedGraph属性
let hostingView = CPTGraphHostingView(frame: CGRect(x: 0, y: 0, width: 300, height: 200))
hostingView.hostedGraph = graph

// 将图表视图添加到视图层级中显示
view.addSubview(hostingView)