Trying to implement mpandroidchart, but the graph is ending up useless because it is plotting the chart incorrectly.
Below is the snippet of how i try to implement.
fun setGraph(cdata : ArrayList<Entry>){
val lineChart: LineChart = bind.lineChartViewPage
lineChart.setExtraOffsets(0f, 40f, 0f, 40f)
lineChart.setDrawBorders(false)
lineChart.setDrawGridBackground(false)
lineChart.legend.isEnabled = false
lineChart.description.isEnabled = false
lineChart.setTouchEnabled(false)
lineChart.isDragEnabled = false
lineChart.setScaleEnabled(false)
lineChart.setPinchZoom(false)
lineChart.isAutoScaleMinMaxEnabled = false
val lds = LineDataSet(cdata, "my data")
lds.mode = LineDataSet.Mode.LINEAR
lds.setDrawCircleHole(false)
lds.setDrawCircles(false)
lds.color = Color.parseColor("#ffffff")
lds.lineWidth = 1.5f
lds.isHighlightEnabled = false
val lineDataSets: ArrayList<ILineDataSet> = ArrayList<ILineDataSet>()
lineDataSets.add(lds)
lds.setDrawValues(false)
val lineData = LineData(lineDataSets)
val ll1 = LimitLine(2.5F)
ll1.lineWidth = 2f
ll1.lineColor = Color.parseColor("#99ce7aff")
val yAxisRight: YAxis = lineChart.axisRight
yAxisRight.textColor = Color.WHITE
yAxisRight.setDrawZeroLine(false)
yAxisRight.setDrawAxisLine(false)
yAxisRight.setCenterAxisLabels(true)
yAxisRight.setDrawTopYLabelEntry(true)
yAxisRight.setDrawGridLines(false)
yAxisRight.setGranularity(1.0f)
yAxisRight.isGranularityEnabled = true
yAxisRight.setLabelCount(6, true)
yAxisRight.removeAllLimitLines()
yAxisRight.addLimitLine(ll1)
yAxisRight.axisMaximum = 3.0f
yAxisRight.axisMinimum = 0.0f
val xAxis: XAxis = lineChart.xAxis
xAxis.isEnabled = false
xAxis.valueFormatter = null
xAxis.setDrawLabels(false)
xAxis.setDrawGridLines(false)
val yAxisLeft: YAxis = lineChart.axisLeft
yAxisLeft.isEnabled = false
yAxisLeft.setDrawLabels(false)
yAxisLeft.setDrawGridLines(false)
// hide legend
val legend: Legend = lineChart.legend
legend.isEnabled = false
lineChart.data = lineData
lineChart.data.notifyDataChanged()
lineChart.notifyDataSetChanged()
lineChart.invalidate()
}
I tried out some combinations and found a different behavior if i comment out below lines :
yAxisRight.axisMaximum = 3.0f
yAxisRight.axisMinimum = 0.0f
Before commenting lines (incorrect plotting with limit line)
After commenting lines (correct plotting and limit line vanished)
Below is the dataset on which the graph is being plotted. here the max value is 0.8f and min value is 0.1f.
private fun fakeData():ArrayList<Entry>{
val al: ArrayList<Entry> = ArrayList()
al.add(Entry(1F, 0.2F))
al.add(Entry(2F, 0.4F))
al.add(Entry(3F, 0.5F))
al.add(Entry(4F, 0.6F))
al.add(Entry(5F, 0.3F))
al.add(Entry(6F, 0.4F))
al.add(Entry(7F, 0.6F))
al.add(Entry(8F, 0.7F))
al.add(Entry(9F, 0.4F))
al.add(Entry(10F, 0.1F))
al.add(Entry(11F, 0.3F))
al.add(Entry(12F, 0.3F))
al.add(Entry(13F, 0.5F))
al.add(Entry(14F, 0.6F))
al.add(Entry(15F, 0.47F))
al.add(Entry(16F, 0.55F))
al.add(Entry(17F, 0.66F))
al.add(Entry(18F, 0.45F))
al.add(Entry(19F, 0.46F))
al.add(Entry(20F, 0.33F))
al.add(Entry(21F, 0.4F))
al.add(Entry(22F, 0.36F))
al.add(Entry(23F, 0.37F))
al.add(Entry(24F, 0.46F))
al.add(Entry(25F, 0.74F))
al.add(Entry(26F, 0.76F))
al.add(Entry(27F, 0.79F))
al.add(Entry(28F, 0.8F))
return al
}
If i dont set min and max values as below; then the limit line won't show up.
yAxisRight.axisMaximum = 3.0f
yAxisRight.axisMinimum = 0.0f
chart version : com.github.PhilJay:MPAndroidChart:v3.1.0
Please let me know if there is something wrong with this implementation or possible ways to correct this.
UPDATE :
Tried multiple dataset and found that defining custom yaxis min and max value is causing the chart to be drawn incorrectly. I cant understand why?