高德地图API 之行政区+范围+平移+经纬度+鼠标样式
获取当前地图的行政区 getCity()
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>map</title> <script type="text/javascript" src="https://webapi.amap.com/maps?v=1.4.15&key=ce3b1a3a7e67fc75810ce1ba1f83c01a"></script> <style> *{margin:0;padding:0;} #container {width:100%; height: 100%;top:0;left:0;position: absolute; } #setZoomNode{width:300px;height:100px;background-color: #fff;border:1px solid;box-shadow:0 0 5px #000;top:20px;right:20px;position: absolute;} </style> </head> <body> <div id="container"></div> <div id="setZoomNode"> </div> <script> var map=new AMap.Map("container"); map.on("moveend",function(){ //获取行政区 map.getCity(function(info){ console.log(info); setZoomNode.innerHTML=info.province+","+info.city+","+info.district; }) }) </script> </body> </html>
注意：默认只能获取中国的行政区
设置行政区 setCity()
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>map</title> <script type="text/javascript" src="https://webapi.amap.com/maps?v=1.4.15&key=ce3b1a3a7e67fc75810ce1ba1f83c01a"></script> <style> *{margin:0;padding:0;} #container {width:100%; height: 100%;top:0;left:0;position: absolute; } #setZoomNode{width:300px;height:100px;background-color: #fff;border:1px solid;box-shadow:0 0 5px #000;top:20px;right:20px;position: absolute;} </style> </head> <body> <div id="container"></div> <div id="setZoomNode"> <input type="text" id="city"> <button id="btn">设置行政区</button> </div> <script> var map=new AMap.Map("container"); map.on("moveend",function(){ //获取行政区 map.getCity(function(info){ console.log(info); setZoomNode.innerHTML=info.province+","+info.city+","+info.district; }) }) //设置行政区 map.setCity("宁波"); //通过事件设置行政区 btn.onclick=function(){ map.setCity(city.value); } </script> </body> </html>
获取地图的范围 getBounds()
c对象
northeast 右上
southwest 左下
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>map</title> <script type="text/javascript" src="https://webapi.amap.com/maps?v=1.4.15&key=ce3b1a3a7e67fc75810ce1ba1f83c01a"></script> <style> *{margin:0;padding:0;} #container {width:100%; height: 100%;top:0;left:0;position: absolute; } #setZoomNode{width:400px;height:100px;background-color: #fff;border:1px solid;box-shadow:0 0 5px #000;top:20px;right:20px;position: absolute;} </style> </head> <body> <div id="container"></div> <div id="setZoomNode"> <span id="ne"></span><br> <span id="sw"></span><br> </div> <script> var map=new AMap.Map("container"); map.on("moveend",function(){ //获取范围 console.log(map.getBounds()); ne.innerHTML=map.getBounds().northeast.toString(); sw.innerHTML=map.getBounds().southwest.toString(); }) </script> </body> </html>
设置地图的显示范围 setBounds()
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>map</title> <script type="text/javascript" src="https://webapi.amap.com/maps?v=1.4.15&key=ce3b1a3a7e67fc75810ce1ba1f83c01a"></script> <style> *{margin:0;padding:0;} #container {width:100%; height: 100%;top:0;left:0;position: absolute; } #setZoomNode{width:400px;height:100px;background-color: #fff;border:1px solid;box-shadow:0 0 5px #000;top:20px;right:20px;position: absolute;} </style> </head> <body> <div id="container"></div> <div id="setZoomNode"> <span id="ne"></span><br> <span id="sw"></span><br> </div> <script> var map=new AMap.Map("container"); //先左下角，再右上角 var myBounds=new AMap.Bounds([122.240801,29.401671],[123.539934,30.261788]); map.setBounds(myBounds); //设置的范围并不一定完全贴合获取到的范围，只能是尽可能匹配 console.log(map.getBounds().northeast.toString()); console.log(map.getBounds().southwest.toString()); </script> </body> </html>
限制显示范围 setLimitBounds()
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>map</title> <script type="text/javascript" src="https://webapi.amap.com/maps?v=1.4.15&key=ce3b1a3a7e67fc75810ce1ba1f83c01a"></script> <style> *{margin:0;padding:0;} #container {width:100%; height: 100%;top:0;left:0;position: absolute; } #setZoomNode{width:400px;height:100px;background-color: #fff;border:1px solid;box-shadow:0 0 5px #000;top:20px;right:20px;position: absolute;} </style> </head> <body> <div id="container"></div> <div id="setZoomNode"> <span id="ne"></span><br> <span id="sw"></span><br> </div> <script> var map=new AMap.Map("container"); //限制显示范围 var bounds=map.getBounds(); map.setLimitBounds(bounds); </script> </body> </html>
限制在当前范围内不可查看其它范围的
解除范围限制 clearLimitBounds()
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>map</title> <script type="text/javascript" src="https://webapi.amap.com/maps?v=1.4.15&key=ce3b1a3a7e67fc75810ce1ba1f83c01a"></script> <style> *{margin:0;padding:0;} #container {width:100%; height: 100%;top:0;left:0;position: absolute; } #setZoomNode{width:400px;height:100px;background-color: #fff;border:1px solid;box-shadow:0 0 5px #000;top:20px;right:20px;position: absolute;} </style> </head> <body> <div id="container"></div> <div id="setZoomNode"> <span id="ne"></span><br> <span id="sw"></span><br> </div> <script> var map=new AMap.Map("container"); //限制显示范围 var bounds=map.getBounds(); map.setLimitBounds(bounds); //解除范围限制 map.clearLimitBounds(); </script> </body> </html>
控制单个坐标值的限制
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>map</title> <script type="text/javascript" src="https://webapi.amap.com/maps?v=1.4.15&key=ce3b1a3a7e67fc75810ce1ba1f83c01a"></script> <style> *{margin:0;padding:0;} #container {width:100%; height: 100%;top:0;left:0;position: absolute; } #setZoomNode{width:400px;height:100px;background-color: #fff;border:1px solid;box-shadow:0 0 5px #000;top:20px;right:20px;position: absolute;} </style> </head> <body> <div id="container"></div> <div id="setZoomNode"> <span id="ne"></span><br> <span id="sw"></span><br> </div> <script> var map=new AMap.Map("container"); //限制显示范围 var bounds=map.getBounds(); console.log(bounds); //单独限制右上角的水平坐标不能超过123 bounds.northeast.R=123; map.setLimitBounds(bounds); //解除范围限制 map.clearLimitBounds(); </script> </body> </html>
以上实现右上角的水平范围不会超过123
一个关于显示和解除地图范围的demo
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>map</title> <script type="text/javascript" src="https://webapi.amap.com/maps?v=1.4.15&key=ce3b1a3a7e67fc75810ce1ba1f83c01a"></script> <style> *{margin:0;padding:0;} #container {width:100%; height: 100%;top:0;left:0;position: absolute; } #setZoomNode{width:400px;height:100px;background-color: #fff;border:1px solid;box-shadow:0 0 5px #000;top:20px;right:20px;position: absolute;} </style> </head> <body> <div id="container"></div> <div id="setZoomNode"> 右边水平限制：<input type="text" id="x2"><br> 左边水平限制<input type="text" id="x1"><br> <button id="btn">确定</button> <button id="clear">解除限制</button> </div> <script> var map=new AMap.Map("container"); //限制显示范围 btn.onclick=function(){ var bounds=map.getBounds(); //input输入的文本是string，需要转为number bounds.northeast.R=Number(x2.value); bounds.southwest.R=Number(x1.value); map.setLimitBounds(bounds); } //解除显示范围 clear.onclick=function(){ map.clearLimitBounds(); } map.on("moveend",function(){ console.log(map.getBounds().northeast.R); console.log(map.getBounds().southwest.R); }) </script> </body> </html>
地图的平移，以像素为单位
panBy(左右像素，上下像素） 左正右负，上正下负
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>map</title> <script type="text/javascript" src="https://webapi.amap.com/maps?v=1.4.15&key=ce3b1a3a7e67fc75810ce1ba1f83c01a"></script> <style> *{margin:0;padding:0;} #container {width:100%; height: 100%;top:0;left:0;position: absolute; } #setZoomNode{width:400px;height:100px;background-color: #fff;border:1px solid;box-shadow:0 0 5px #000;top:20px;right:20px;position: absolute;} </style> </head> <body> <div id="container"></div> <div id="setZoomNode"> 右边水平限制：<input type="text" id="x2"><br> 左边水平限制<input type="text" id="x1"><br> <button id="btn">确定</button> <button id="clear">解除限制</button> </div> <script> var map=new AMap.Map("container"); setTimeout(function(){ //向左平移50像素，向上平移30像素 map.panBy(50,30); },2000); </script> </body> </html>
随机移动
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>map</title> <script type="text/javascript" src="https://webapi.amap.com/maps?v=1.4.15&key=ce3b1a3a7e67fc75810ce1ba1f83c01a"></script> <style> *{margin:0;padding:0;} #container {width:100%; height: 100%;top:0;left:0;position: absolute; } #setZoomNode{width:400px;height:100px;background-color: #fff;border:1px solid;box-shadow:0 0 5px #000;top:20px;right:20px;position: absolute;} </style> </head> <body> <div id="container"></div> <div id="setZoomNode"> </div> <script> var map=new AMap.Map("container"); //每3秒随机移动 setInterval(function(){ //向左上方向随机移动 //map.panBy(30*Math.random(),30*Math.random()); //不确定方向的随机移动 map.panBy(30*Math.random()-15,30*Math.random()-15); },3000); </script> </body> </html>
panTo() 移动到指定位置
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>map</title> <script type="text/javascript" src="https://webapi.amap.com/maps?v=1.4.15&key=ce3b1a3a7e67fc75810ce1ba1f83c01a"></script> <style> *{margin:0;padding:0;} #container {width:100%; height: 100%;top:0;left:0;position: absolute; } #setZoomNode{width:400px;height:100px;background-color: #fff;border:1px solid;box-shadow:0 0 5px #000;top:20px;right:20px;position: absolute;} </style> </head> <body> <div id="container"></div> <div id="setZoomNode"> </div> <script> var map=new AMap.Map("container"); console.log(map.getCenter().toString()); setTimeout(function(){ // 宁波移动到了绍兴 map.panTo([120.549792,29.868388]); },3000); </script> </body> </html>
通过事件设置平移
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>map</title> <script type="text/javascript" src="https://webapi.amap.com/maps?v=1.4.15&key=ce3b1a3a7e67fc75810ce1ba1f83c01a"></script> <style> *{margin:0;padding:0;} #container {width:100%; height: 100%;top:0;left:0;position: absolute; } #setZoomNode{width:400px;height:100px;background-color: #fff;border:1px solid;box-shadow:0 0 5px #000;top:20px;right:20px;position: absolute;} </style> </head> <body> <div id="container"></div> <div id="setZoomNode"> <input type="text" id="x"> <input type="text" id="y"> <button id="btn">移动</button> </div> <script> var map=new AMap.Map("container"); console.log(map.getCenter().toString()); //通过事件设置 btn.onclick=function(){ map.panTo([x.value,y.value]); } </script> </body> </html>
获取鼠标的经纬度
longitude 经度
latitude 纬度
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>map</title> <script type="text/javascript" src="https://webapi.amap.com/maps?v=1.4.15&key=ce3b1a3a7e67fc75810ce1ba1f83c01a"></script> <style> *{margin:0;padding:0;} #container {width:100%; height: 100%;top:0;left:0;position: absolute; } #setZoomNode{width:400px;height:100px;background-color: #fff;border:1px solid;box-shadow:0 0 5px #000;top:20px;right:20px;position: absolute;} </style> </head> <body> <div id="container"></div> <div id="setZoomNode"> 鼠标点击的经纬度：<span id="xy"></span> </div> <script> var map=new AMap.Map("container"); //通过事件设置 map.on("click",function(e){ console.log(e.lnglat); xy.innerHTML=e.lnglat.lng+","+e.lnglat.lat; //同时将鼠标点击位置设置为中心点 map.setCenter([e.lnglat.lng,e.lnglat.lat]); }) </script> </body> </html>
以上代码实现鼠标点击的位置作为地图的中心点
设置鼠标样式 setDefaultCursor()
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>map</title> <script type="text/javascript" src="https://webapi.amap.com/maps?v=1.4.15&key=ce3b1a3a7e67fc75810ce1ba1f83c01a"></script> <style> *{margin:0;padding:0;} #container {width:100%; height: 100%;top:0;left:0;position: absolute; } #setZoomNode{width:400px;height:100px;background-color: #fff;border:1px solid;box-shadow:0 0 5px #000;top:20px;right:20px;position: absolute;} </style> </head> <body> <div id="container"></div> <div id="setZoomNode"> </div> <script> var map=new AMap.Map("container"); //只要是css的cursor中能设置的属性值，都可以 map.setDefaultCursor("pointer"); </script> </body> </html>
