zh/builder/src/echarts3/chart/graph/categoryFilter.js

export default function (ecModel) {
  var legendModels = ecModel.findComponents({
    mainType: 'legend'
  });

  if (!legendModels || !legendModels.length) {
    return;
  }

  ecModel.eachSeriesByType('graph', function (graphSeries) {
    var categoriesData = graphSeries.getCategoriesData();
    var graph = graphSeries.getGraph();
    var data = graph.data;
    var categoryNames = categoriesData.mapArray(categoriesData.getName);
    data.filterSelf(function (idx) {
      var model = data.getItemModel(idx);
      var category = model.getShallow('category');

      if (category != null) {
        if (typeof category === 'number') {
          category = categoryNames[category];
        } // If in any legend component the status is not selected.


        for (var i = 0; i < legendModels.length; i++) {
          if (!legendModels[i].isSelected(category)) {
            return false;
          }
        }
      }

      return true;
    });
  }, this);
}