Function groupSeries

src/component/toolbox/feature/DataView.ts:70–109

* Group series into two types * 1. on category axis, like line, bar * 2. others, like scatter, pie

(ecModel: GlobalModel)

 *  2. others, like scatter, pie
 */
function groupSeries(ecModel: GlobalModel) {
    const seriesGroupByCategoryAxis: Dictionary<SeriesGroup> = {};
    const otherSeries: SeriesModel[] = [];
    const meta: SeriesGroupMeta[] = [];
    ecModel.eachRawSeries(function (seriesModel) {
        const coordSys = seriesModel.coordinateSystem;

        if (coordSys && (coordSys.type === 'cartesian2d' || coordSys.type === 'polar')) {
            // TODO: TYPE Consider polar? Include polar may increase unnecessary bundle size.
            const baseAxis = (coordSys as Cartesian2D).getBaseAxis();
            if (baseAxis.type === 'category') {
                const key = getCartesianAxisHashKey(baseAxis);
                if (!seriesGroupByCategoryAxis[key]) {
                    seriesGroupByCategoryAxis[key] = {
                        categoryAxis: baseAxis,
                        valueAxis: coordSys.getOtherAxis(baseAxis),
                        series: []
                    };
                    meta.push({
                        axisDim: baseAxis.dim,
                        axisIndex: baseAxis.index
                    });
                }
                seriesGroupByCategoryAxis[key].series.push(seriesModel);
            }
            else {
                otherSeries.push(seriesModel);
            }
        }
        else {
            otherSeries.push(seriesModel);
        }
    });

    return {
        seriesGroupByCategoryAxis: seriesGroupByCategoryAxis,
        other: otherSeries,
        meta: meta
    };
}

/**
 * Assemble content of series on cateogory axis