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1 vote
7k views

To whom this may concern:

I am having an issue on a new computer that I bought with an 11th-gen GPU processor with an Intel Iris Xe GPU.

Usually when I plot live data, the chart updates automatically. However, with this computer, the chart appears to be frozen, but the axes are still moving. The only way the chart itself updates is if you resize it or hide-and-reshow it, and then it freezes again. The software doesn’t crash, and no errors have been logged. This has happened with all of our programs using SciChart.

This issue can’t be re-created on any other computer we have. I have video evidence of this, but it’s larger than 1 MB so I can’t upload it here.

Can you please advise?

Thank you kindly!

— Ari

  • Ari Sagiv asked 2 years ago
  • last active 1 year ago
0 votes
10k views

Hello.

It’s very strange, but chart can not be zoomed with pinch, only by double tap fitting full screen.
And when trying to zoom app freezes and CPU load became 100%.

func installChart() {
    sciChartSurface = SCIChartSurface(frame: self.view.bounds)
    sciChartSurface?.translatesAutoresizingMaskIntoConstraints = false


    self.vGraphBox.subviews.forEach({ $0.removeFromSuperview() })

    self.vGraphBox.addSubview(sciChartSurface!)

    NSLayoutConstraint.activate([
        sciChartSurface!.leftAnchor.constraint(equalTo: self.vGraphBox.leftAnchor),
        sciChartSurface!.rightAnchor.constraint(equalTo: self.vGraphBox.rightAnchor),
        sciChartSurface!.bottomAnchor.constraint(equalTo: self.vGraphBox.bottomAnchor),
        sciChartSurface!.topAnchor.constraint(equalTo: self.vGraphBox.topAnchor)
        ])

    // Add the SCIChartSurface as a subview
    self.vGraphBox.addSubview(sciChartSurface!)

    let xAxis = SCILogarithmicNumericAxis()
    xAxis.growBy = SCIDoubleRange(min: SCIGeneric(0.1), max: SCIGeneric(0.1))
    xAxis.scientificNotation = .logarithmicBase
    //xAxis.textFormatting = "#.#E+0"
    xAxis.logarithmicBase = 10.0
    xAxis.visibleRange = SCIDoubleRange(min: SCIGeneric(100), max: SCIGeneric(22000.0))

    let yAxis = SCINumericAxis()
    yAxis.autoRange = .never
    yAxis.visibleRange = SCIDoubleRange(min: SCIGeneric(-300.0), max: SCIGeneric(0.0))

    lineRenderableSeries.dataSeries = self.dataSeries
    lineRenderableSeries.strokeStyle = SCISolidPenStyle(colorCode: 0xFFE13219, withThickness: 1)

    //self.sciChartSurface?.chartModifiers.add(pinchZoomModifier) //Causes freeze
    self.sciChartSurface?.chartModifiers.add(SCIZoomPanModifier())
    self.sciChartSurface?.chartModifiers.add(SCIZoomExtentsModifier())

    SCIUpdateSuspender.usingWithSuspendable(sciChartSurface!) {
        self.sciChartSurface?.xAxes.add(xAxis)
        self.sciChartSurface?.yAxes.add(yAxis)
        self.sciChartSurface?.renderableSeries.add(self.lineRenderableSeries)
        self.sciChartSurface?.renderableSeries.add(self.lineRenderableSeriesMax)
    }
}
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