Function buildPayloadsBySeries

src/component/axisPointer/axisTrigger.ts:259–321

(value: AxisValue, axisInfo: CollectedAxisInfo)

}

function buildPayloadsBySeries(value: AxisValue, axisInfo: CollectedAxisInfo) {
    const axis = axisInfo.axis;
    const dim = axis.dim;
    let snapToValue = value;
    const payloadBatch: BatchItem[] = [];
    let minDist = Number.MAX_VALUE;
    let minDiff = -1;

    each(axisInfo.seriesModels, function (series, idx) {
        const dataDim = series.getData().mapDimensionsAll(dim);
        let seriesNestestValue;
        let dataIndices;

        if (series.getAxisTooltipData) {
            const result = series.getAxisTooltipData(dataDim, value, axis);
            dataIndices = result.dataIndices;
            seriesNestestValue = result.nestestValue;
        }
        else {
            dataIndices = series.indicesOfNearest(
                dim,
                dataDim[0],
                value as number,
                // Add a threshold to avoid find the wrong dataIndex
                // when data length is not same.
                // false,
                axis.type === 'category' ? 0.5 : null
            );
            if (!dataIndices.length) {
                return;
            }
            seriesNestestValue = series.getData().get(dataDim[0], dataIndices[0]);
        }

        if (!isNullableNumberFinite(seriesNestestValue)) {
            return;
        }

        const diff = value as number - seriesNestestValue;
        const dist = Math.abs(diff);
        // Consider category case
        if (dist <= minDist) {
            if (dist < minDist || (diff >= 0 && minDiff < 0)) {
                minDist = dist;
                minDiff = diff;
                snapToValue = seriesNestestValue;
                payloadBatch.length = 0;
            }
            each(dataIndices, function (dataIndex) {
                payloadBatch.push({
                    seriesIndex: series.seriesIndex,
                    dataIndexInside: dataIndex,
                    dataIndex: series.getData().getRawIndex(dataIndex)
                });
            });
        }
    });