let chartViewWidth  = self.view.frame.size.width
        let chartViewHeight = self.view.frame.size.height
        aaChartView = AAChartView()
        aaChartView?.frame = CGRect(x: 0,
                                    y: 60,
                                    width: chartViewWidth,
                                    height: chartViewHeight)
        // set the content height of aachartView
        // aaChartView?.contentHeight = self.view.frame.size.height
        self.view.addSubview(aaChartView!)

        let aaChartModel = AAChartModel()
            .chartType(.area)//Can be any of the chart types listed under `AAChartType`.
            .animationType(.bounce)
            .title("TITLE")//The chart title
            .subtitle("subtitle")//The chart subtitle
            .dataLabelsEnabled(false) //Enable or disable the data labels. Defaults to false
            .tooltipValueSuffix("USD")//the value suffix of the chart tooltip
            .categories(["Jan", "Feb", "Mar", "Apr", "May", "Jun",
                         "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"])
            .colorsTheme(["#fe117c","#ffc069","#06caf4","#7dffc0"])
            .series([
                AASeriesElement()
                    .name("Tokyo")
                    .data([7.0, 6.9, 9.5, 14.5, 18.2, 21.5, 25.2, 26.5, 23.3, 18.3, 13.9, 9.6]),
                AASeriesElement()
                    .name("New York")
                    .data([0.2, 0.8, 5.7, 11.3, 17.0, 22.0, 24.8, 24.1, 20.1, 14.1, 8.6, 2.5]),
                AASeriesElement()
                    .name("Berlin")
                    .data([0.9, 0.6, 3.5, 8.4, 13.5, 17.0, 18.6, 17.9, 14.3, 9.0, 3.9, 1.0]),
                AASeriesElement()
                    .name("London")
                    .data([3.9, 4.2, 5.7, 8.5, 11.9, 15.2, 17.0, 16.6, 14.2, 10.3, 6.6, 4.8]),
                    ])

        //The chart view object calls the instance object of AAChartModel and draws the final graphic
        aaChartView?.aa_drawChartWithChartModel(aaChartModel!)

        //Only refresh the chart series data
        aaChartView?.aa_onlyRefreshTheChartDataWithChartModelSeries(chartModelSeriesArray)

        //Refresh the chart after the AAChartModel whole content is updated
        aaChartView?.aa_refreshChartWholeContentWithChartModel(aaChartModel!)

 //Set AAChartView events delegate
 aaChartView!.delegate = self as AAChartViewDelegate
 


 //implement AAChartView user click or finger move over events delegate function
extension BasicChartVC: AAChartViewDelegate {
    open func aaChartView(_ aaChartView: AAChartView, clickEventMessage: AAClickEventMessageModel) {
        print(
            """

            clicked point series element name: \(clickEventMessage.name ?? "")
            🖱🖱🖱WARNING!!!!!!!!!!!!!!!!!!!! Click Event Message !!!!!!!!!!!!!!!!!!!! WARNING🖱🖱🖱
            ==========================================================================================
            ------------------------------------------------------------------------------------------
            user finger moved over!!!,get the move over event message: {
            category = \(String(describing: clickEventMessage.category))
            index = \(String(describing: clickEventMessage.index))
            name = \(String(describing: clickEventMessage.name))
            offset = \(String(describing: clickEventMessage.offset))
            x = \(String(describing: clickEventMessage.x))
            y = \(String(describing: clickEventMessage.y))
            }
            +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
            
            
            """
        )
    }

    open func aaChartView(_ aaChartView: AAChartView, moveOverEventMessage: AAMoveOverEventMessageModel) {
        print(
            """

            moved over point series element name: \(moveOverEventMessage.name ?? "")
            ✋🏻✋🏻✋🏻✋🏻✋🏻WARNING!!!!!!!!!!!!!! Move Over Event Message !!!!!!!!!!!!!! WARNING✋🏻✋🏻✋🏻✋🏻✋🏻
            ==========================================================================================
            ------------------------------------------------------------------------------------------
            user finger moved over!!!,get the move over event message: {
            category = \(String(describing: moveOverEventMessage.category))
            index = \(String(describing: moveOverEventMessage.index))
            name = \(String(describing: moveOverEventMessage.name))
            offset = \(String(describing: moveOverEventMessage.offset))
            x = \(String(describing: moveOverEventMessage.x))
            y = \(String(describing: moveOverEventMessage.y))
            }
            +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
            
            
            """
        )
    }
}

public class AAEventMessageModel: NSObject {
    public var name: String?
    public var x: Float?
    public var y: Float?
    public var category: String?
    public var offset: [String: Any]?
    public var index: Int?
}

public class AAClickEventMessageModel: AAEventMessageModel {}

public class AAMoveOverEventMessageModel: AAEventMessageModel {}

public enum AAChartType: String {
    case column          //Column series display one column per value along an X axis.
    case bar             //A bar series is a special type of column series where the columns are horizontal.
    case area            //The area series type.
    case areaspline      //The area spline series is an area series where the graph between the points is smoothed into a spline.
    case line            //A line series displays information as a series of data points connected by straight line segments.
    case spline          //A spline series is a special type of line series, where the segments between the data points are smoothed.
    case scatter         //A scatter plot uses cartesian coordinates to display values for two variables for a set of data.
    case pie             //A pie chart is a circular graphic which is divided into slices to illustrate numerical proportion.
    case bubble          //A bubble series is a three dimensional series type where each point renders an X, Y and Z value. Each points is drawn as a bubble where the position along the X and Y axes mark the X and Y values, and the size of the bubble relates to the Z value.
    case pyramid         //A pyramid series is a special type of funnel, without neck and reversed by default.
    case funnel          //Funnel charts are a type of chart often used to visualize stages in a sales project, where the top are the initial stages with the most clients. It requires that the modules/funnel.js file is loaded.
    case columnrange     //The column range is a cartesian series type with higher and lower Y values along an X axis. To display horizontal bars, set chart.inverted to true.
    case arearange       //The area range series is a carteseian series with higher and lower values for each point along an X axis, where the area between the values is shaded.
    case areasplinerange //The area spline range is a cartesian series type with higher and lower Y values along an X axis. The area inside the range is colored, and the graph outlining the area is a smoothed spline.
    case boxplot         //A box plot is a convenient way of depicting groups of data through their five-number summaries: the smallest observation (sample minimum), lower quartile (Q1), median (Q2), upper quartile (Q3), and largest observation (sample maximum).
    case waterfall       //A waterfall chart displays sequentially introduced positive or negative values in cumulative columns.
    case polygon         //A polygon series can be used to draw any freeform shape in the cartesian coordinate system. A fill is applied with the color option, and stroke is applied through lineWidth and lineColor options.
    case gauge           //Gauges are circular plots displaying one or more values with a dial pointing to values along the perimeter.
    case errorbar        //Error bars are a graphical representation of the variability of data and are used on graphs to indicate the error, or uncertainty in a reported measurement.
}

enum AAChartZoomType: String {
    case none = "none"
    case x    = "x"
    case y    = "y"
    case xy   = "xy"
}

public enum AAChartLineDashStyleType: String {
    case solid           //———————————————————————————————————
    case shortDash       //— — — — — — — — — — — — — — — — — —
    case shortDot        //ⵈⵈⵈⵈⵈⵈⵈⵈⵈⵈⵈⵈⵈⵈⵈⵈⵈⵈⵈⵈⵈⵈⵈⵈⵈⵈⵈⵈ
    case shortDashDot    //—‧—‧—‧—‧—‧—‧—‧—‧—‧—‧—‧—‧—‧—‧—‧—‧—‧—‧
    case shortDashDotDot //—‧‧—‧‧—‧‧—‧‧—‧‧—‧‧—‧‧—‧‧—‧‧—‧‧—‧‧—‧‧
    case dot             //‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧
    case dash            //—— —— —— —— —— —— —— —— —— —— —— ——
    case longDash        //——— ——— ——— ——— ——— ——— ——— ——— ———
    case dashDot         //——‧——‧——‧——‧——‧——‧——‧——‧——‧——‧——‧——‧
    case longDashDot     //———‧———‧———‧———‧———‧———‧———‧———‧———‧
    case longDashDotDot  //———‧‧———‧‧———‧‧———‧‧———‧‧———‧‧———‧‧
}

 public enum AAChartAnimationType: String {
    case easeInQuad     = "easeInQuad"
    case easeOutQuad    = "easeOutQuad"
    case easeInOutQuad  = "easeInOutQuad"
    case easeInCubic    = "easeInCubic"
    case easeOutCubic   = "easeOutCubic"
    case easeInOutCubic = "easeInOutCubic"
    case easeInQuart    = "easeInQuart"
    case easeOutQuart   = "easeOutQuart"
    case easeInOutQuart = "easeInOutQuart"
    case easeInQuint    = "easeInQuint"
    case easeOutQuint   = "easeOutQuint"
    case easeInOutQuint = "easeInOutQuint"
    case easeInSine     = "easeInSine"
    case easeOutSine    = "easeOutSine"
    case easeInOutSine  = "easeInOutSine"
    case easeInExpo     = "easeInExpo"
    case easeOutExpo    = "easeOutExpo"
    case easeInOutExpo  = "easeInOutExpo"
    case easeInCirc     = "easeInCirc"
    case easeOutCirc    = "easeOutCirc"
    case easeInOutCirc  = "easeInOutCirc"
    case easeOutBounce  = "easeOutBounce"
    case easeInBack     = "easeInBack"
    case easeOutBack    = "easeOutBack"
    case easeInOutBack  = "easeInOutBack"
    case elastic        = "elastic"
    case swingFromTo    = "swingFromTo"
    case swingFrom      = "swingFrom"
    case swingTo        = "swingTo"
    case bounce         = "bounce"
    case bouncePast     = "bouncePast"
    case easeFromTo     = "easeFromTo"
    case easeFrom       = "easeFrom"
    case easeTo         = "easeTo"
}

public class AAChartModel: AAObject {
    public var animationType: AAChartAnimationType? //The type of chart animation
    public var animationDuration: Int?      //The chart rendering animation duration
    public var title: String?               //The chart title
    public var titleStyle: AAStyle?         //The chart title style
    public var subtitle: String?            //The chart subtitle
    public var subtitleAlign: AAChartAlignType?//The chart subtitle text align style
    public var subtitleStyle: AAStyle?      //The chart subtitle style
    public var chartType: AAChartType?      //The default series type for the chart. Can be any of the chart types listed under `AAChartType`. Defaults to line
    public var stacking: AAChartStackingType? //Whether to stack the values of each series on top of each other. Possible values are null to disable, "normal" to stack by value or "percent". When stacking is enabled, data must be sorted in ascending X order
    public var markerSymbol: AAChartSymbolType?   //A predefined shape or symbol for the marker. When null, the symbol is pulled from options.symbols. Other possible values are "circle", "square", "diamond", "triangle" and "triangle-down"
    public var markerSymbolStyle: AAChartSymbolStyleType?
    public var zoomType: AAChartZoomType?   //Decides in what dimensions the user can zoom by dragging the mouse. Can be one of x, y or xy
    public var inverted: Bool?              //Whether to invert the axes so that the x axis is vertical and y axis is horizontal. When true, the x axis is reversed by default. If a bar series is present in the chart, it will be inverted automatically.Inverting the chart doesn't have an effect if there are no cartesian series in the chart, or if the chart is polar.Defaults to false
    public var xAxisReversed: Bool?         //Whether to reverse the axis so that the highest number is closest to the origin. If the chart is inverted, the x axis is reversed by default. Defaults to false
    public var yAxisReversed: Bool?         //Whether to reverse the axis so that the highest number is closest to the origin. If the chart is inverted, the x axis is reversed by default. Defaults to false
    public var polar: Bool?                 //When true, cartesian charts like line, spline, area and column are transformed into the polar coordinate system. Requires `AAHighchartsMore.js`. Defaults to false
    public var margin: [Any?]?
    public var dataLabelsEnabled: Bool?     //Enable or disable the data labels. Defaults to false
    public var dataLabelsStyle: AAStyle?    //The data labels style
    public var xAxisLabelsEnabled: Bool?    //Enable or disable the axis labels. Defaults to true
    public var xAxisLabelsStyle: AAStyle?   //The x axis labels style
    public var categories: [String]?        //Set new categories for the axis
    public var xAxisGridLineWidth: Float?   //The width of the grid lines extending the ticks across the plot area.Defaults to 0
    public var xAxisVisible: Bool?          //Show the x axis or not
    public var xAxisTickInterval: Float?    //Custom x axis tick interval,It is useful when the x categories array is too long to show all of them
    public var yAxisVisible: Bool?          //Show the y axis or not
    public var yAxisLabelsEnabled: Bool?    //Enable or disable the axis labels. Defaults to true
    public var yAxisLabelsStyle: AAStyle?   //The y axis labels style
    public var yAxisTitle: String?          //The actual text of the axis title
    public var xAxisTitle: String?          //The actual text of the axis title
    public var yAxisLineWidth: Float?       //The width of y axis line
    public var yAxisGridLineWidth: Float?   //The width of the grid lines extending the ticks across the plot area. Defaults to 1
    public var yAxisMin: Double?            //The y axis mini value
    public var yAxisMax: Double?            //The y axis max value
    public var yAxisTickPositions:[Any]?    //An array defining where the ticks are laid out on the axis. This overrides the default behaviour of tickPixelInterval and tickInterval.
    public var yAxisAllowDecimals: Bool?    //The y axis values label allow decimals or not
    public var tooltipEnabled: Bool?        //Show the tooltip or not
    public var tooltipValueSuffix: String?  //Custom tooltip value unit suffix
    public var colorsTheme: [Any]?          //An array containing the default colors for the chart's series. When all colors are used, new colors are pulled from the start again. Defaults to: ["#bb250c","#f67210","#fde680","#257679","#f1c6c5"]
    public var series: [Any]?               //An array of all the chart's series
    public var legendEnabled: Bool?         //Enable or disable the legend. Defaults to true
    public var backgroundColor: Any?        //The background color or gradient for the outer chart area. Defaults to #FFFFFF
    public var borderRadius: Float?         //The corner radius of the outer chart border. Defaults to 0
    public var markerRadius: Float?         //The radius of the point marker. Defaults to 4
    public var scrollablePlotArea: AAScrollablePlotArea?    //Scroll properties if supported
 
    ...
    ...  
}