Method _manuallyAxisShowTip

src/component/tooltip/TooltipView.ts:412–451

(
        tooltipModel: TooltipModel,
        ecModel: GlobalModel,
        api: ExtensionAPI,
        payload: ShowTipPayload
    )

    // dispatchAction 'showTip' with seriesIndex and dataIndex will trigger axis pointer
    // and tooltip.
    private _manuallyAxisShowTip(
        tooltipModel: TooltipModel,
        ecModel: GlobalModel,
        api: ExtensionAPI,
        payload: ShowTipPayload
    ) {
        const seriesIndex = payload.seriesIndex;
        const dataIndex = payload.dataIndex;
        // @ts-ignore
        const coordSysAxesInfo = ecModel.getComponent('axisPointer').coordSysAxesInfo;

        if (seriesIndex == null || dataIndex == null || coordSysAxesInfo == null) {
            return;
        }

        const seriesModel = ecModel.getSeriesByIndex(seriesIndex);
        if (!seriesModel) {
            return;
        }

        const data = seriesModel.getData();
        const tooltipCascadedModel = buildTooltipModel([
            data.getItemModel<TooltipableOption>(dataIndex),
            seriesModel as Model<TooltipableOption>,
            (seriesModel.coordinateSystem || {}).model as Model<TooltipableOption>
        ], this._tooltipModel);

        if (tooltipCascadedModel.get('trigger') !== 'axis') {
            return;
        }

        api.dispatchAction({
            type: 'updateAxisPointer',
            seriesIndex: seriesIndex,
            dataIndex: dataIndex,
            position: payload.position
        });

        return true;
    }

    private _tryShow(
        e: TryShowParams,