echarts 中国地图，根据省份数值高低改变省份颜色深浅

function randomValue() {
    return Math.round(Math.random()*2000); } option = { backgroundColor:'block', tooltip: {}, visualMap: { min: 0, max: 2000, text:['High','Low'], realtime: false, calculable: true, inRange: { color: ['#e0ffff', 'red'] } }, geo: { map: 'china', roam: true, label: { normal: { show: true, textStyle: { color: 'rgba(0,0,0,0.4)' } } }, itemStyle: { normal:{ borderColor: 'rgba(0, 0, 0, 0.2)' }, emphasis:{ areaColor: null, shadowOffsetX: 0, shadowOffsetY: 0, shadowBlur: 20, borderWidth: 0, shadowColor: 'rgba(0, 0, 0, 0.5)' } } }, series : [ { name: '浏览量', type: 'map', roam: true, coordinateSystem: 'geo', geoIndex: 0, // tooltip: {show: false}, label: { normal: { formatter: '{b}', position: 'right', show: false }, emphasis: { show: true } }, itemStyle: { normal: { color: '#F06C00' } }, data:[ {name: '北京', value: randomValue()}, {name: '天津', value: randomValue()}, {name: '上海', value: randomValue()}, {name: '重庆', value: randomValue()}, {name: '河北', value: randomValue()}, {name: '河南', value: randomValue()}, {name: '云南', value: randomValue()}, {name: '辽宁', value: randomValue()}, {name: '黑龙江', value: randomValue()}, {name: '湖南', value: randomValue()}, {name: '安徽', value: randomValue()}, {name: '山东', value: randomValue()}, {name: '新疆', value: randomValue()}, {name: '江苏', value: randomValue()}, {name: '浙江', value: randomValue()}, {name: '江西', value: randomValue()}, {name: '湖北', value: randomValue()}, {name: '广西', value: randomValue()}, {name: '甘肃', value: randomValue()}, {name: '山西', value: randomValue()}, {name: '内蒙古', value: randomValue()}, {name: '陕西', value: randomValue()}, {name: '吉林', value: randomValue()}, {name: '福建', value: randomValue()}, {name: '贵州', value: randomValue()}, {name: '广东', value: randomValue()}, {name: '青海', value: randomValue()}, {name: '西藏', value: randomValue()}, {name: '四川', value: randomValue()}, {name: '宁夏', value: randomValue()}, {name: '海南', value: randomValue()}, {name: '台湾', value: randomValue()}, {name: '香港', value: randomValue()}, {name: '澳门', value: randomValue()} ] } ] }; var chart=echarts.init(document.getElementById("Map")) chart.setOption(option)