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I am using SciChart to create mountain chart. Now I want to change whole dataset when some button is clicked. So I am updating the dataset and calling invalidateElement on ScichartSurface. It is not animating while redrawing itself. First time it is animating.

@objc func changeDataValue() {
    if isFirstDataSet {
        for i in 0 ..< yValues3.count {
        ds1.update(at: Int32(i), x: SCIGeneric(i), y: SCIGeneric(yValues3[i]))
        ds2.update(at: Int32(i), x: SCIGeneric(i), y: SCIGeneric(yValues4[i]))
        }
    } else {
        for i in 0 ..< yValues1.count {
            ds1.update(at: Int32(i), x: SCIGeneric(i), y: SCIGeneric(yValues1[i]))
            ds2.update(at: Int32(i), x: SCIGeneric(i), y: SCIGeneric(yValues2[i]))
        }
    }
    isFirstDataSet = !isFirstDataSet
    sciChartSurface.invalidateElement()

    sciChartSurface.zoomExtents()

}

Code to add ScichartSurface is

  private func configureChartSurface() {
    sciChartSurface = SCIChartSurface(frame: view.bounds)
    sciChartSurface.autoresizingMask = [.flexibleWidth, .flexibleHeight]
    sciChartSurface.translatesAutoresizingMaskIntoConstraints = true
    view.addSubview(sciChartSurface)

    for i in 0..<yValues1.count {
        ds1.appendX(SCIGeneric(i), y: SCIGeneric(yValues1[i]))
        ds2.appendX(SCIGeneric(i), y: SCIGeneric(yValues2[i]))
    }

    let rSeries1 = SCIStackedMountainRenderableSeries()
    rSeries1.dataSeries = ds1
    rSeries1.strokeStyle = SCISolidPenStyle(colorCode: 0xFFffffff, withThickness: 1)
    rSeries1.areaStyle = SCILinearGradientBrushStyle(colorCodeStart: 0xDDDBE0E1, finish: 0x88B6C1C3, direction: .vertical)

    let rSeries2 = SCIStackedMountainRenderableSeries()
    rSeries2.dataSeries = ds2
    rSeries2.strokeStyle = SCISolidPenStyle(colorCode: 0xFFffffff, withThickness: 1)
    rSeries2.areaStyle = SCILinearGradientBrushStyle(colorCodeStart: 0xDDACBCCA, finish: 0x88439AAF, direction: .vertical)

    seriesCollection.add(rSeries1)
    seriesCollection.add(rSeries2)
    self.sciChartSurface.xAxes.add(SCINumericAxis())
    self.sciChartSurface.yAxes.add(SCINumericAxis())
    self.sciChartSurface.renderableSeries.add(self.seriesCollection)
    self.sciChartSurface.chartModifiers = SCIChartModifierCollection(childModifiers: [SCITooltipModifier()])
     self.seriesCollection.addAnimation(SCIWaveRenderableSeriesAnimation(duration: 3, curveAnimation: .easeOut))
    }
Version
2.5.0.2579
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Hi there,

you might notice, that we adding animation while, so you need to do the same while updating your data, in case of line renderable series it would be like below:

// In your changeDataValue functionalists
rSeries.addAnimation(SCISweepRenderableSeriesAnimation(duration: 1, curveAnimation: .easeOut))
surface.invalidateAnimationsContext()

Hope that helps.
Best Regards,
Nazar R.

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