zh/builder/src/echarts3/component/marker/MarkerView.js

import * as echarts from '../../echarts';
import * as zrUtil from 'zrender/src/core/util';
export default echarts.extendComponentView({
  type: 'marker',
  init: function () {
    /**
     * Markline grouped by series
     * @private
     * @type {module:zrender/core/util.HashMap}
     */
    this.markerGroupMap = zrUtil.createHashMap();
  },
  render: function (markerModel, ecModel, api) {
    var markerGroupMap = this.markerGroupMap;
    markerGroupMap.each(function (item) {
      item.__keep = false;
    });
    var markerModelKey = this.type + 'Model';
    ecModel.eachSeries(function (seriesModel) {
      var markerModel = seriesModel[markerModelKey];
      markerModel && this.renderSeries(seriesModel, markerModel, ecModel, api);
    }, this);
    markerGroupMap.each(function (item) {
      !item.__keep && this.group.remove(item.group);
    }, this);
  },
  renderSeries: function () {}
});