Method constructor

src/base/bubble-mixin.js:17–50

()

 */
export const BubbleMixin = Base => class extends ColorMixin(Base) {
    constructor () {
        super();

        this._maxBubbleRelativeSize = 0.3;
        this._minRadiusWithLabel = 10;
        this._sortBubbleSize = false;
        this._elasticRadius = false;
        this._excludeElasticZero = true;

        // These cane be used by derived classes as well, so member status
        this.BUBBLE_NODE_CLASS = 'node';
        this.BUBBLE_CLASS = 'bubble';
        this.MIN_RADIUS = 10;

        this.renderLabel(true);

        this.data(group => {
            const data = group.all();

            if (this._keyboardAccessible) {
                // sort based on the x value (key)
                data.sort((a, b) => ascending(this.keyAccessor()(a), this.keyAccessor()(b)));
            }

            if (this._sortBubbleSize) {
                // sort descending so smaller bubbles are on top
                const radiusAccessor = this.radiusValueAccessor();
                data.sort((a, b) => descending(radiusAccessor(a), radiusAccessor(b)));
            }
            return data;
        });

        this._r = scaleLinear().domain([0, 100]);
    }

    _rValueAccessor (d) {
        return d.r;