1 var cityMap = { 2 "长沙市": "430100", 3 "株洲市": "430200", 4 "湘潭市": "430300", 5 "衡阳市": "430400", 6 "邵阳市": "430500", 7 "岳阳市": "430600", 8 "常德市": "430700", 9 "张家界市": "430800", 10 "益阳市": "430900", 11 "郴州市": "431000", 12 "永州市": "431100", 13 "怀化市": "431200", 14 "娄底市": "431300", 15 "湘西土家族苗族自治州": "433100" 16 17 }; 18 var curIndx = 0; 19 var mapType = []; 20 var mapGeoData = require('echarts/util/mapData/params'); 21 for (var city in cityMap) { 22 mapType.push(city); 23 // 自定义扩展图表类型 24 mapGeoData.params[city] = { 25 getGeoJson: (function (c) { 26 var geoJsonName = cityMap[c]; 27 return function (callback) { 28 $.getJSON('geoJson/china-main-city/' + geoJsonName + '.json', callback); 29 } 30 })(city) 31 } 32 } 33 34 var ecConfig = require('echarts/config'); 35 var zrEvent = require('zrender/tool/event'); 36 document.getElementById('main').onmousewheel = function (e){ 37 var event = e || window.event; 38 curIndx += zrEvent.getDelta(event) > 0 ? (-1) : 1; 39 if (curIndx < 0) { 40 curIndx = mapType.length - 1; 41 } 42 var mt = mapType[curIndx % mapType.length]; 43 option.series[0].mapType = mt; 44 option.title.subtext = mt + ' (滚轮或点击切换)'; 45 myChart.setOption(option, true); 46 zrEvent.stop(event); 47 }; 48 myChart.on(ecConfig.EVENT.MAP_SELECTED, function (param){ 49 var mt = param.target; 50 var len = mapType.length; 51 var f= false; 52 for(var i=0;i<len;i++){ 53 if(mt == mapType[i]){ 54 f =true; 55 mt=mapType[i]; 56 } 57 } 58 if(!f){ 59 mt='湖南'; 60 } 61 option.series[0].mapType = mt; 62 63 option.title.subtext = mt + ' (滚轮或点击切换)'; 64 myChart.setOption(option, true); 65 }); 66 option = { 67 title: { 68 text : '全国344个主要城市(县)地图 by Pactera 陈然', 69 link : 'http://www.pactera.com/', 70 subtext : '长沙市 (滚轮或点击切换)' 71 }, 72 tooltip : { 73 trigger: 'item', 74 formatter: '滚轮或点击切换<br/>{b}' 75 }, 76 series : [ 77 { 78 name: '全国344个主要城市(县)地图', 79 type: 'map', 80 mapType: '湖南', 81 selectedMode : 'single', 82 itemStyle:{ 83 normal:{label:{show:true}}, 84 emphasis:{label:{show:true}} 85 }, 86 data:[] 87 } 88 ] 89 };
- 将上面部分代码复制,然后粘贴覆盖到http://echarts.baidu.com/doc/example/mix5.html左侧的黑色区域中,然后点击刷新,即可看到效果。
2.其中var mapGeoData = require('echarts/util/mapData/params');我的理解是找到param.js这个文件,然后执行循环将city对应的县级数据加载到param.js文件中