Questions

When setting yAxis to have auto range enabled or when manually calling chartSurface.zoomExtents() after adding new data to chart, the top point are cropped (not shown in the chart). I have attached an image that shows this phenomenon (note: bottom part of the chart is cropped out of the image).

Below is full code of an Activity that reproduces the problem. I also updated the attached image that shows the result of the following code. As you can see both red points with y value of 1.1f are cropped out of the chart.

class MainActivity : AppCompatActivity()
{
    private val chartBuilder by lazy { SciChartBuilder.instance() }
    private val chartSurface by lazy { createChartSurface() }

    override fun onCreate(savedInstanceState: Bundle?)
    {
        super.onCreate(savedInstanceState)

        SciChartBuilder.init(this)
        setContentView(R.layout.activity_main)

        val background = findViewById<ViewGroup>(R.id.background)
        background.addView(chartSurface)

        addPoints()
    }

    private fun createChartSurface(): SciChartSurface
    {
        val surface = SciChartSurface(this)

        val xAxis = chartBuilder.newNumericAxis()
            .withAxisTitle("X Axis title")
            .withVisibleRange(0.0, 1.0)
            .withAutoRangeMode(AutoRange.Always)
            .build()

        val yAxis = chartBuilder.newNumericAxis()
            .withAxisTitle("Y Axis title")
            .withVisibleRange(0.0, 1.0)
            .withAutoRangeMode(AutoRange.Always)
            .build()

        Collections.addAll(surface.xAxes, xAxis)
        Collections.addAll(surface.yAxes, yAxis)

        surface.renderableSeries.add(createSeries(Color.RED))
        surface.renderableSeries.add(createSeries(Color.BLUE))

        return surface
    }

    private fun createSeries(color: Int): FastLineRenderableSeries
    {
        val lineData = chartBuilder.newXyDataSeries(Long::class.javaObjectType, Float::class.javaObjectType)
            .withSeriesName("series")
            .build()

        return chartBuilder.newLineSeries()
            .withDataSeries(lineData)
            .withIsVisible(true)
            .withStrokeStyle(color, 2f, true)
            .build()
    }

    private fun addPoints()
    {
        val xValues = LongValues(longArrayOf(0, 1, 2, 3, 4, 5))

        @Suppress("UNCHECKED_CAST")
        var lineData = chartSurface.renderableSeries[0].dataSeries as XyDataSeries<Long, Float>
        lineData.append(xValues, FloatValues(floatArrayOf(0.9f, 1f, 1.1f, 0.9f, 1.1f, 1f)))

        @Suppress("UNCHECKED_CAST")
        lineData = chartSurface.renderableSeries[1].dataSeries as XyDataSeries<Long, Float>
        lineData.append(xValues, FloatValues(floatArrayOf(0f, 0f, 0f, 0f, 0f, 0f)))
    }
}