dispatchAction_brush没用echarts 折线配置项内容和展示

通过dispatchAction增加选定基于坐标轴的选框，好像没有生效

          var data = [
        [1, 5],
        [2, 3],
        [3, 9],
        [4, 7],
        [5, 11],
        [6, 8],
        [7, 5],
        [8, 9],
        [9, 5],
    ];
    option = {
        title: {
            text: 'dispatchAction_brush没用',
        },
        grid: {
            left: '3%',
            right: '7%',
            bottom: '3%',
            containLabel: true
        },
        tooltip: {

        },

        brush: {},
        legend: {
            data: ['', ''],
            left: 'center'
        },
        xAxis: [{
            type: 'value',
            scale: true,
            axisTick: true,
            splitLine: {
                show: false
            }
        }],
        yAxis: [{
            type: 'value',
            scale: true,
            axisTick: true,
            splitLine: {
                show: false
            }
        }],
        dataZoom:{},
        series: [{
            name: '111',
            type: 'line',
            data: data,
        }]
    };

    myChart.dispatchAction({
        type:'brush',
        areas:[{
            xAxisIndex:0,
            //yAxisIndex:0,
            brushType:'lineX',
            coordRange:[3,6],
        }]
    })