treemap不响应手动设置高亮echarts scatter' }, { type: 'treemap配置项内容和展示

我在实际使用中需要实现点选或者框选然后与其他图表互动的效果（有复杂的映射关系，需要后台处理，不能简单使用echart的group），点选通过设置高亮的方法在散点图上可以实现，但是treemap的画面不响应手动控制高亮，请问有什么解决方法?

      option = {
    xAxis: {},
    yAxis: {},
    series: [{
        symbolSize: 20,
        data: [
            [10.0, 8.04],
            [8.0, 6.95],
            [13.0, 7.58],
            [9.0, 8.81],
            [11.0, 8.33],
            [14.0, 9.96],
            [6.0, 7.24],
            [4.0, 4.26],
            [12.0, 10.84],
            [7.0, 4.82],
            [5.0, 5.68]
        ],
        type: 'scatter'
    },
    {
        type: 'treemap',
        data: [{
            name: 'nodeA',            // First tree
            value: 10,
            children: [{
                name: 'nodeAa',       // First leaf of first tree
                value: 4
            }, {
                name: 'nodeAb',       // Second leaf of first tree
                value: 6
            }]
        }, {
            name: 'nodeB',            // Second tree
            value: 20,
            children: [{
                name: 'nodeBa',       // Son of first tree
                value: 20,
                children: [{
                    name: 'nodeBa1',  // Granson of first tree
                    value: 20
                }]
            }]
        }],
        nodeClick: false
    }]
};

var lastMouseOverIndex = null;
myChart.on('click', params => {
    if (this.lastMouseOverIndex !== null) {
        myChart.dispatchAction({
            type: 'downplay',
            seriesIndex: 0,
            dataIndex: this.lastMouseOverIndex
        });
            myChart.dispatchAction({
            type: 'downplay',
            seriesIndex: 1,
            dataIndex: this.lastMouseOverIndex
        });
    }
    this.lastMouseOverIndex = this.lastMouseOverIndex == params.dataIndex ? null : params.dataIndex;
});
myChart.on('mouseout', params => {
    if (this.lastMouseOverIndex !== null) {
        myChart.dispatchAction({
            type: 'highlight',
            seriesIndex: 0,
            dataIndex: this.lastMouseOverIndex
        });
        myChart.dispatchAction({
            type: 'highlight',
            seriesIndex: 1,
            dataIndex: this.lastMouseOverIndex
        });
    }
});