Function layoutSingleSeries

src/chart/boxplot/boxplotLayout.ts:119–190

* Calculate points location for each series.

(seriesModel: BoxplotSeriesModel, offset: number, boxWidth: number)

 * Calculate points location for each series.
 */
function layoutSingleSeries(seriesModel: BoxplotSeriesModel, offset: number, boxWidth: number) {
    const coordSys = seriesModel.coordinateSystem;
    const data = seriesModel.getData();
    const halfWidth = boxWidth / 2;
    const cDimIdx = seriesModel.getWhiskerBoxesLayout() === 'horizontal' ? 0 : 1;
    const vDimIdx = 1 - cDimIdx;
    const coordDims = ['x', 'y'];
    const cDim = data.mapDimension(coordDims[cDimIdx]);
    const vDims = data.mapDimensionsAll(coordDims[vDimIdx]);

    if (cDim == null || vDims.length < 5) {
        return;
    }

    for (let dataIndex = 0; dataIndex < data.count(); dataIndex++) {
        const axisDimVal = data.get(cDim, dataIndex) as number;

        const median = getPoint(axisDimVal, vDims[2], dataIndex);
        const end1 = getPoint(axisDimVal, vDims[0], dataIndex);
        const end2 = getPoint(axisDimVal, vDims[1], dataIndex);
        const end4 = getPoint(axisDimVal, vDims[3], dataIndex);
        const end5 = getPoint(axisDimVal, vDims[4], dataIndex);

        const ends: number[][] = [];
        addBodyEnd(ends, end2, false);
        addBodyEnd(ends, end4, true);

        ends.push(end1, end2, end5, end4);
        layEndLine(ends, end1);
        layEndLine(ends, end5);
        layEndLine(ends, median);

        data.setItemLayout(dataIndex, {
            initBaseline: median[vDimIdx],
            ends: ends
        } as BoxplotItemLayout);
    }

    function getPoint(axisDimVal: number, dim: string, dataIndex: number) {
        const val = data.get(dim, dataIndex) as number;
        const p = [];
        p[cDimIdx] = axisDimVal;
        p[vDimIdx] = val;
        let point;
        if (isNaN(axisDimVal) || isNaN(val)) {
            point = [NaN, NaN];
        }
        else {
            point = coordSys.dataToPoint(p);
            point[cDimIdx] += offset;
        }
        return point;
    }

    function addBodyEnd(ends: number[][], point: number[], start?: boolean) {
        const point1 = point.slice();
        const point2 = point.slice();
        point1[cDimIdx] += halfWidth;