//前面的代码省略直接调用，传入echarts实例对象
connectMap(chart1,chart2);

function connectMap(chart1,chart2){
    //当鼠标移入左侧的地图上
        chart1.on("mouseover",function(target){

            var option=chart2.getOption();
            option.tooltip[0].alwaysShowContent=true;
            option.tooltip[0].triggerOn="none";
            chart2.setOption(option,true);
            chart2.dispatchAction({
                type:'downplay',
                seriesName:'rightmap'
            })
            chart2.dispatchAction({
                type:'highlight',
                name:target.name,
            })

    })
    chart1.on("mousemove",function(target){

        chart2.dispatchAction({
            type:'showTip',
            name:target.name,
            x:target.event.offsetX,
            y:target.event.offsetY
        })
    })
    chart1.on("mouseout",function(){
        var option=chart2.getOption();
        option.tooltip[0].alwaysShowContent=false;
        option.tooltip[0].triggerOn="mousemove";
        chart2.setOption(option,true);
        chart2.dispatchAction({
            type:'hideTip'
        })
    })

    //当鼠标移到右边的地图
    chart2.on("mouseover",function(target){
        var option=chart1.getOption();
        option.tooltip[0].alwaysShowContent=true;
        option.tooltip[0].triggerOn="none";
        chart1.setOption(option,true);
        chart1.dispatchAction({
            type:'downplay',
            seriesName:'rightmap'
        })
        chart1.dispatchAction({
            type:'highlight',
            name:target.name,
        })

    })
    chart2.on("mousemove",function(target){

        chart1.dispatchAction({
            type:'showTip',
            name:target.name,
            x:target.event.offsetX,
            y:target.event.offsetY
        })
    })
    chart2.on("mouseout",function(){
        var option=chart1.getOption();
        option.tooltip[0].alwaysShowContent=false;
        option.tooltip[0].triggerOn="mousemove";
        chart1.setOption(option,true);
        chart1.dispatchAction({
            type:'hideTip'
        })
    })
}