onAttach method

@override void onAttach(BaseChart<D> chart)

Handles any setup of the renderer that needs to be deferred until it is attached to a chart.

Implementation

@override
void onAttach(BaseChart<D> chart) {
  super.onAttach(chart);

  // Save a reference to the parent chart so that we can access properties
  // that are not set until a later state (e.g. isRtl), or that might change
  // dynamically (e.g. vertical).
  this.chart = chart as CartesianChart<D>;
}