Access to the chart object

[Zefling]

Currently, it's possible to get the chart object with this method, to ignore the private access.

let char = <LineChart>(this.nvD3['ngNvD3']['chart']);
let x    = chart.xAxis.scale()(current);

Is it possible tout add a getter like this?

let char = this.nvD3.getChart<LineChart>();
let x    = chart.xAxis.scale()(current);