Questions

AxisBase2D.js. if !this.parentSurface or visibleSeries is an empty array or !xVisibleRange or !range, then maxRange will also be undefined

The static code analyzer will sound an alarm that there will probably be an attempt to use an uninitialized variable. Do you use static code analyzers?

the problem went away when I commented out yAxis.growBy = new NumberRange (0.35, 0.15)

javascript
createMainYAxis () {
const yAxis = new NumericAxis(this.wasmContext)
yAxis.drawMinorTickLines = false
yAxis.majorGridLineStyle = {
strokeThickness: 1,
color: 'rgba(238, 238, 238, 0.1)'
}
// yAxis.growBy = new NumberRange(0.35, 0.15) // by commenting out this line the error disappears
yAxis.autoRange = EAutoRange.Always
this.mainYAxis = yAxis
this.chartSurface.yAxes.add(yAxis)
},

Hi Roman

Thank you for your feedback on this. It’s a strange error as AxisBase.getWindowedYRange() should not be called unless axis is in a Parent SciChartSurface, but the error only occurs when parent SciChartSurface is undefined.

I’m curious what exact set of circumstances you have in code to get this bug? We never saw it in tests or development.

Best regards,
Andrew