<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <meta http-equiv=‘X-UA-Compatible‘ content=‘IE=edge‘> <meta name="viewport" content="initial-scale=1.0, user-scalable=no, width=device-width"> <link rel="stylesheet" href="https://a.amap.com/jsapi_demos/static/demo-center/css/demo-center.css"/> <style> html, body, #container { width: 100%; height: 100%; margin: 0; } </style> <title>简易行政区图 - 省份&层级</title> </head> <body> <div id="container"></div> <div class="input-card"> <h4>选择省份</h4> <select name="code-list" id="adcode-list" style="height: 28px;margin-right: 10px;" onchange="changeAdcode(this.value)"> <option value="-1">选择省份</option> </select> <h4>选择层级</h4> <select name="code-list" style="height: 28px;margin-right: 10px;" onchange="changeDepth(this.value)"> <option value="0">0 - 显示省级</option> <option value="1">1 - 显示市级</option> <option selected value="2">2 - 显示区/县级</option> </select> </div> <script src="https://webapi.amap.com/maps?v=1.4.15&key=13b0a65f57a87bdc07980b8abe0232bb&plugin=Map3D,AMap.DistrictLayer,AMap.Scale,AMap.ToolBar"></script> <script src="https://a.amap.com/Loca/static/mock/adcodes.js"></script> <script> var adCode = 130000; var depth = 2; var map = new AMap.Map("container", { zoom: 4.5, center: [116.412427, 39.303573], pitch: 0, viewMode: ‘3D‘, }); // 创建省份图层 var disProvince; function initPro(code, dep) { dep = typeof dep == ‘undefined‘ ? 2 : dep; adCode = code; depth = dep; disProvince && disProvince.setMap(null); disProvince = new AMap.DistrictLayer.Province({ zIndex: 12, adcode: [code], depth: dep, styles: { ‘fill‘: function (properties) { // properties为可用于做样式映射的字段，包含 // NAME_CHN:中文名称 // adcode_pro // adcode_cit // adcode var adcode = properties.adcode; return getColorByAdcode(adcode); }, ‘province-stroke‘: ‘cornflowerblue‘, ‘city-stroke‘: ‘white‘, // 中国地级市边界 ‘county-stroke‘: ‘rgba(255,255,255,0.5)‘ // 中国区县边界 } }); disProvince.setMap(map); } // 颜色辅助方法 var colors = {}; var getColorByAdcode = function (adcode) { if (!colors[adcode]) { var gb = Math.random() * 155 + 50; colors[adcode] = ‘rgb(‘ + gb + ‘,‘ + gb + ‘,255)‘; } return colors[adcode]; }; // 按钮事件 function changeAdcode(code) { if (code != 100000) { initPro(code, depth); } } function changeDepth(dep) { initPro(adCode, dep); } initPro(adCode, depth); </script> <script> // 构造下拉框 var optArr = adcodes.map(function (item) { if (item.adcode == 100000) { item.name = ‘选择省份‘; } return ‘<option ‘ + (item.adcode == adCode ? ‘selected‘ : ‘‘) + ‘ value="‘ + item.adcode + ‘">‘ + item.name + ‘</option>‘; }); document.getElementById(‘adcode-list‘).innerHTML = optArr.join(‘‘); </script> </body> </html>
原文：https://www.cnblogs.com/xiaobaizitaibai/p/11062882.html