折线图点和折线点击事件函数能分开吗echarts 折线配置项内容和展示

折线图点和折线点击事件函数能分开吗

      option = {
    title: {
        text: 'Awesome Chart'
    },
    xAxis: {},
    yAxis: {},
    series: [{
        type: 'line',
        data: [[10, 220], [20, 182], [30, 191], [40,234], [50, 290]]
    }]
};

myChart.getZr().on('click',function(params){
    if(params.target !== undefined && params.topTarget !== undefined){
        var seriesIndex = params.target.seriesIndex;
        var dataIndex = params.target.dataIndex;
        var targetData = option.series[seriesIndex].data[dataIndex][0]+" - "+option.series[seriesIndex].data[dataIndex][1];
        var coord = params.topTarget.transform[4]+" - "+params.topTarget.transform[5];
        alert("点击了节点！\n当前节点值是："+targetData+"\n当前点坐标是："+coord);
    }else if(params.target === undefined && params.topTarget !== undefined){
        alert("点击了折线！");
    }else{
        alert("点击了空白区域！");
    }
})