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87 lines
3.2 KiB
87 lines
3.2 KiB
2 years ago
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// 高德地图工具类
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var MapUtil = {
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/**
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* 添加地图边界
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* <pre>
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* config:
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* region: 行政区划代码
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* areaName: 行政区划名称
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* earecode: admin.earecode
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*
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* </pre>
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* @param {Object} map 高德地图 map 实例
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* @param {{ region:string,
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* areaName:string,
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* earecode:string}} config 配置
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*/
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add_border: function (map, config) {
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var district;
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var areaDisLevel = config.earecode;
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var len = areaDisLevel.length;
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var areaName = '';
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if (len == 6) {
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areaDisLevel = 'district';
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} else if (len == 4) {
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areaDisLevel = 'city';
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} else {
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areaDisLevel = 'province';
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areaName = '河北省';
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config.areaName = areaName;
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}
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if (map != null) {
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var obj = MAP_BORDER_ARR[config.region];
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if (obj != null) {
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var polygon = new AMap.Polygon({
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path: obj.borderArray,
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fillColor: '#80d8ff', // 多边形填充颜色
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strokeWeight: 5, // 线条宽度，默认为 1
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fillOpacity: 0,
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strokeColor: '#0091ea', // 线条颜色
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});
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map.add(polygon);
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if (obj.zoom) {
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map.setZoom(10);
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}
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map.setCenter(obj.center);
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} else {
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var polygons = [];
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var name = config.areaName;
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AMap.service('AMap.DistrictSearch', function () {//回调函数
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var opts = {
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showbiz: false,
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subdistrict: 0, //获取边界不需要返回下级行政区
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extensions: 'all' //返回行政区边界坐标组等具体信息
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};
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district = new AMap.DistrictSearch(opts);
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district.setLevel(areaDisLevel);//district、city、province、country
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district.search(name, function (status, result) {
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if (polygons == null || polygons.length == 0) {
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map.remove(polygons); //清除上次结果
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polygons = [];
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}
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var bounds = result.districtList[0].boundaries;
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if (bounds) {
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for (var i = 0, l = bounds.length; i < l; i++) {
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//生成行政区划polygon
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var polygon = new AMap.Polygon({
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strokeWeight: 5,
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path: bounds[i],
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fillOpacity: 0,
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fillColor: '#80d8ff',
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strokeColor: '#0091ea'
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});
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polygons.push(polygon);
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}
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}
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map.add(polygons);
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map.setFitView(polygons);//视口自适应
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});
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});
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}
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}
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}
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};
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