ScatterView.js

import echarts from '../../echarts';
import SymbolDraw from '../helper/SymbolDraw';
import LargeSymbolDraw from '../helper/LargeSymbolDraw';

echarts.extendChartView({

    type: 'scatter',

    init: function () {
        this._normalSymbolDraw = new SymbolDraw();
        this._largeSymbolDraw = new LargeSymbolDraw();
    },

    render: function (seriesModel, ecModel, api) {
        var data = seriesModel.getData();
        var largeSymbolDraw = this._largeSymbolDraw;
        var normalSymbolDraw = this._normalSymbolDraw;
        var group = this.group;

        var symbolDraw = seriesModel.get('large') && data.count() > seriesModel.get('largeThreshold')
            ? largeSymbolDraw : normalSymbolDraw;

        this._symbolDraw = symbolDraw;
        symbolDraw.updateData(data);
        group.add(symbolDraw.group);

        group.remove(
            symbolDraw === largeSymbolDraw
            ? normalSymbolDraw.group : largeSymbolDraw.group
        );
    },

    updateLayout: function (seriesModel) {
        this._symbolDraw.updateLayout(seriesModel);
    },

    remove: function (ecModel, api) {
        this._symbolDraw && this._symbolDraw.remove(api, true);
    },

    dispose: function () {}
});