createRenderer method
To create a stacked line series renderer.
Implementation
StackedLineSeriesRenderer createRenderer(ChartSeries<T, D> series) {
StackedLineSeriesRenderer stackedLineSeriesRenderer;
if (onCreateRenderer != null) {
stackedLineSeriesRenderer =
onCreateRenderer!(series) as StackedLineSeriesRenderer;
// ignore: unnecessary_null_comparison
assert(stackedLineSeriesRenderer != null,
'This onCreateRenderer callback function should return value as extends from ChartSeriesRenderer class and should not be return value as null');
return stackedLineSeriesRenderer;
}
return StackedLineSeriesRenderer();
}