Function dataStack

_benchmarks/sample_echarts.js:19676–19705

(ecModel)

    //     Should be executed after series filtered and before stack calculation.

    function dataStack(ecModel) {
      var stackInfoMap = createHashMap();
      ecModel.eachSeries(function (seriesModel) {
        var stack = seriesModel.get('stack'); // Compatibal: when `stack` is set as '', do not stack.

        if (stack) {
          var stackInfoList = stackInfoMap.get(stack) || stackInfoMap.set(stack, []);
          var data = seriesModel.getData();
          var stackInfo = {
            // Used for calculate axis extent automatically.
            // TODO: Type getCalculationInfo return more specific type?
            stackResultDimension: data.getCalculationInfo('stackResultDimension'),
            stackedOverDimension: data.getCalculationInfo('stackedOverDimension'),
            stackedDimension: data.getCalculationInfo('stackedDimension'),
            stackedByDimension: data.getCalculationInfo('stackedByDimension'),
            isStackedByIndex: data.getCalculationInfo('isStackedByIndex'),
            data: data,
            seriesModel: seriesModel
          }; // If stacked on axis that do not support data stack.

          if (!stackInfo.stackedDimension || !(stackInfo.isStackedByIndex || stackInfo.stackedByDimension)) {
            return;
          }

          stackInfoList.length && data.setCalculationInfo('stackedOnSeries', stackInfoList[stackInfoList.length - 1].seriesModel);
          stackInfoList.push(stackInfo);
        }
      });
      stackInfoMap.each(calculateStack);
    }

    function calculateStack(stackInfoList) {
      each(stackInfoList, function (targetStackInfo, idxInStack) {