src/charts/gauge.js

import Chart from './base/Chart';

/**
 * Gauge implementation. This charts belongs to 'Basic' family.
 * It is inherited on 'Basic'.
 */
export default class Gauge extends Chart {

  /**
   * Gauge constructor. It needs (at least) one argument to start: data.
   * Optionally, you can indicate a second argument that includes all the chart options. If you
   * do not specify this, '_default' object is used by default.
   */
  constructor(data, config) {
    super(data, config);
  }

  /**
   * Renders a data object on the chart.
   * @param  {Object} data This object contains the data that will be rendered on chart. If you do not
   * specify this param, this.data will be used instead.
   */
  draw(data = this.data) {
    super.draw(data);
  }


  /**
   * Add new data to the current graph. If it is empty, this creates a new one.
   * @param  {Object} datum data to be rendered
   */
  keepDrawing(datum) {
    this.data = [datum[0]];
    super.draw();
  }

}