多维度自动切换中国地图echarts 地图配置项内容和展示

多个维度的地图，整合在一起，通过legend自动切换。鼠标移动到地图上停止切换

      function randomData() {
    return Math.round(Math.random()*1000);
}

var data = [
    {
        data: [
                {name: '北京',value: randomData() },
                {name: '天津',value: randomData() },
                {name: '上海',value: randomData() },
                {name: '重庆',value: randomData() },
                {name: '河北',value: randomData() },
                {name: '河南',value: randomData() },
                {name: '云南',value: randomData() },
                {name: '辽宁',value: randomData() },
                {name: '黑龙江',value: randomData() },
                {name: '湖南',value: randomData() },
                {name: '安徽',value: randomData() },
                {name: '山东',value: randomData() },
                {name: '新疆',value: randomData() },
                {name: '江苏',value: randomData() },
                {name: '浙江',value: randomData() },
                {name: '江西',value: randomData() },
                {name: '湖北',value: randomData() },
                {name: '广西',value: randomData() },
                {name: '甘肃',value: randomData() },
                {name: '山西',value: randomData() },
                {name: '内蒙古',value: randomData() },
                {name: '陕西',value: randomData() },
                {name: '吉林',value: randomData() },
                {name: '福建',value: randomData() },
                {name: '贵州',value: randomData() },
                {name: '广东',value: randomData() },
                {name: '青海',value: randomData() },
                {name: '西藏',value: randomData() },
                {name: '四川',value: randomData() },
                {name: '宁夏',value: randomData() },
                {name: '海南',value: randomData() },
                {name: '台湾',value: randomData() },
                {name: '香港',value: randomData() },
                {name: '澳门',value: randomData() }
            ],
        title: '华为手机'
    },   
    {
        data: [
                {name: '北京',value: randomData() },
                {name: '天津',value: randomData() },
                {name: '上海',value: randomData() },
                {name: '重庆',value: randomData() },
                {name: '河北',value: randomData() },
                {name: '河南',value: randomData() },
                {name: '云南',value: randomData() },
                {name: '辽宁',value: randomData() },
                {name: '黑龙江',value: randomData() },
                {name: '湖南',value: randomData() },
                {name: '安徽',value: randomData() },
                {name: '山东',value: randomData() },
                {name: '新疆',value: randomData() },
                {name: '江苏',value: randomData() },
                {name: '浙江',value: randomData() },
                {name: '江西',value: randomData() },
                {name: '湖北',value: randomData() },
                {name: '广西',value: randomData() },
                {name: '甘肃',value: randomData() },
                {name: '山西',value: randomData() },
                {name: '内蒙古',value: randomData() },
                {name: '陕西',value: randomData() },
                {name: '吉林',value: randomData() },
                {name: '福建',value: randomData() },
                {name: '贵州',value: randomData() },
                {name: '广东',value: randomData() },
                {name: '青海',value: randomData() },
                {name: '西藏',value: randomData() },
                {name: '四川',value: randomData() },
                {name: '宁夏',value: randomData() },
                {name: '海南',value: randomData() },
                {name: '台湾',value: randomData() },
                {name: '香港',value: randomData() },
                {name: '澳门',value: randomData() }
            ],
        title: '小米手机'
    },
    {
        data: [
                {name: '北京',value: randomData() },
                {name: '天津',value: randomData() },
                {name: '上海',value: randomData() },
                {name: '重庆',value: randomData() },
                {name: '河北',value: randomData() },
                {name: '河南',value: randomData() },
                {name: '云南',value: randomData() },
                {name: '辽宁',value: randomData() },
                {name: '黑龙江',value: randomData() },
                {name: '湖南',value: randomData() },
                {name: '安徽',value: randomData() },
                {name: '山东',value: randomData() },
                {name: '新疆',value: randomData() },
                {name: '江苏',value: randomData() },
                {name: '浙江',value: randomData() },
                {name: '江西',value: randomData() },
                {name: '湖北',value: randomData() },
                {name: '广西',value: randomData() },
                {name: '甘肃',value: randomData() },
                {name: '山西',value: randomData() },
                {name: '内蒙古',value: randomData() },
                {name: '陕西',value: randomData() },
                {name: '吉林',value: randomData() },
                {name: '福建',value: randomData() },
                {name: '贵州',value: randomData() },
                {name: '广东',value: randomData() },
                {name: '青海',value: randomData() },
                {name: '西藏',value: randomData() },
                {name: '四川',value: randomData() },
                {name: '宁夏',value: randomData() },
                {name: '海南',value: randomData() },
                {name: '台湾',value: randomData() },
                {name: '香港',value: randomData() },
                {name: '澳门',value: randomData() }
            ],
        title: '苹果手机'
    }    
];
var nameArr = ['华为', '小米', '苹果'];
var option = getOption(data[0], nameArr);
//响应legend点击事件
myChart.on('legendselectchanged', function(param) {
   let name = param.name;
   let selected = {};
   let selIdx = 0;
   for(var i = 0; i < nameArr.length; i++) {
       if(name == nameArr[i]) {
           selected[nameArr[i]] = true;
           selIdx = i;
       } else {
           selected[nameArr[i]] = false;
       }
   }
   option = getOption(data[selIdx], nameArr);
   option.legend.selected = selected;
   myChart.setOption(option, true);
});

// 定时触发点击legend事件
let idx = 0;
let timer = setInterval(function() {
    myChart.dispatchAction(
        { type: 'legendToggleSelect', 
          name: nameArr[++idx % nameArr.length] }
    )
}, 2000);

// 鼠标移动到地图部分停止自动切换
$('#chart-panel').on("mouseover", function() {
   clearInterval(timer);
});


function getOption(itemData, nameArr) {
    //alert(JSON.stringify(itemData));
    option = {
        title: {
            text: itemData.title + '销量',
            subtext: '纯属虚构',
            left: 'left'
        },
        tooltip: {
            trigger: 'item'
        },
        color: ['#ff0000', '#ff0000', '#ff0000'],
        legend: {
           // orient: 'vertical',
            left: 'center',
            selectedMode: 'single',
            selected: {},
            data: nameArr
        },
        visualMap: {
            min: 0,
            max: 2500,
            left: 'left',
            top: 'bottom',
            text: ['高','低'],           // 文本，默认为数值文本
            calculable: true
        },
        toolbox: {
            show: true,
            orient: 'vertical',
            left: 'right',
            top: 'center',
            feature: {
                dataView: {readOnly: false},
                restore: {},
                saveAsImage: {}
            }
        },
        series: [
            {
                name: '销量',
                type: 'map',
                mapType: 'china',
                showLegendSymbol: false,
                roam: false,
                label: {
                    normal: {
                        show: true
                    },
                    emphasis: {
                        show: true
                    }
                },
                data: itemData.data
            },
            {
                name: nameArr[0],
                type: 'map',
                mapType: 'china',
                label: {
                    normal: {
                        show: true
                    },
                    emphasis: {
                        show: true
                    }
                }
            },
            {
                name: nameArr[1],
                type: 'map',
                mapType: 'china',
                label: {
                    normal: {
                        show: true
                    },
                    emphasis: {
                        show: true
                    }
                }
            },
            {
                name: nameArr[2],
                type: 'map',
                mapType: 'china',
                label: {
                    normal: {
                        show: true
                    },
                    emphasis: {
                        show: true
                    }
                }
            }        
        ]
    };
    return option;
}