createRenderer method

@override AreaSeriesRenderer<T, D> createRenderer()

Create the area series renderer.

Implementation

@override
AreaSeriesRenderer<T, D> createRenderer() {
  AreaSeriesRenderer<T, D>? renderer;
  if (onCreateRenderer != null) {
    renderer = onCreateRenderer!(this) as AreaSeriesRenderer<T, D>?;
    assert(
        renderer != null,
        'This onCreateRenderer callback function should return value as '
        'extends from ChartSeriesRenderer class and should not be return '
        'value as null');
  }

  return renderer ?? AreaSeriesRenderer<T, D>();
}