Cubic Line Distorted

[sz-ashik440]

I was trying to plot a cubic line chart. But it got distorted after some value and after that if I add more value, it gets disappear(couldn't render in iphone). Did I miss something?? Or it's a bug?

    func drawLineChart() {
        let populationData: [Int: Int] = [ 10: 29, 11: 28, 12: 28, 13: 28, 14: 27, 15: 27, 16: 27, 17: 27, 18: 27, 19: 27, 20: 28, 21: 30, 22: 31 ]
    
        let entries = populationData.map{ x,y in
            return ChartDataEntry(x: Double(x), y: Double(y))
        }
    
        let data = LineChartData()
        //----------------------------- dataset intensified ---------------------------------------
        let dataset = LineChartDataSet(values: entries, label: nil)
        dataset.axisDependency = .left
        dataset.colors = [.yellow]
        dataset.mode = .cubicBezier
        dataset.cubicIntensity = 0.1
    
        // kicked out circlre from line
        dataset.drawCirclesEnabled = false
    
        dataset.lineWidth = 2.0
        dataset.fillAlpha = 100
        dataset.drawFilledEnabled = true
        dataset.fillColor = UIColor.orange
        dataset.highlightColor = UIColor.brown
    
        dataset.drawValuesEnabled = false
    
        data.addDataSet(dataset)
    
        dailyTempView.data = data
    
        //----------------------------- removing background gridline -------------------------------
        dailyTempView.drawGridBackgroundEnabled = false
        dailyTempView.drawBordersEnabled = false
    
        dailyTempView.gridBackgroundColor = UIColor.white
        dailyTempView.xAxis.drawGridLinesEnabled = false
        dailyTempView.leftAxis.drawGridLinesEnabled = false
        dailyTempView.leftAxis.granularityEnabled = true
        dailyTempView.leftAxis.granularity = 1.0
    
        dailyTempView.rightAxis.enabled = false
    
        dailyTempView.chartDescription?.text = ""
        dailyTempView.legend.enabled = false
        dailyTempView.xAxis.labelPosition = .bottom
    }

[thierryH91200]

let populationData: [Int: Int] = [ 10: 29, 11: 28, 12: 28, 13: 28, 14: 27, 15: 27, 16: 27, 17: 27, 18: 27, 19: 27, 20: 28, 21: 30, 22: 31 ]
it's a dictionary

the soluce

let populationData : [[Int]] = [[ 10, 29], [11, 28], [12, 28], [13, 28], [14, 27], [15, 27], [16, 27], [17, 27], [18, 27], [19, 27], [20, 28], [21, 30], [22, 31 ]]

var entries = [ChartDataEntry]()
for i in 0..<populationData.count
{
    entries.append(ChartDataEntry(x: Double(populationData[i][0]), y: Double(populationData[i][1])))
}

[sz-ashik440]

Thanks it worked. I forgot that swift dictionary is un-ordered