在百度地图api,经纬度怎么转换成百度坐标

如题所述

第1个回答  2021-01-24

第2个回答  推荐于2017-09-25
<!DOCTYPE html> 
<html> 
<head> 
<meta http-equiv="Content-Type"content="text/html; charset=gb2312"/> 
<script type="text/javascript"src="changeMore.js"></script> 
<title>批量转换坐标</title> 
</head> 
<body> 
<input onclick="magic();"value="批量转换"type="button"/>(据说有50次/秒的限制哦)<hr /> 
<div style="clear:both"> 
<div style="float:left;"> 
<h4>谷歌地图</h4> 
<div style="width:520px;height:340px;border:1px solid gray"id="map_canvas"></div> 
<p>鼠标点击的谷歌坐标是:<span id="info"></span></p> 
<script type="text/javascript"src="http://maps.googleapis.com/maps/api/js?sensor=false"></script> 
<script type="text/javascript"> 
functioninitialize() {varmyOptions ={  
zoom: 14,  
center: newgoogle.maps.LatLng(39.90861722866082, 116.39679921252446),  
mapTypeId: google.maps.MapTypeId.ROADMAP  
};varmap =newgoogle.maps.Map(document.getElementById('map_canvas'),myOptions);  
google.maps.event.addListener(map, 'click', function(e) {  
document.getElementById("info").innerHTML =e.latLng;  
});varmarker1 =newgoogle.maps.Marker({  
position: newgoogle.maps.LatLng(39.90762965106183, 116.3786889372559),  
map: map  
});varmarker2 =newgoogle.maps.Marker({  
position: newgoogle.maps.LatLng(39.90795884517671, 116.38632786853032),  
map: map  
});varmarker3 =newgoogle.maps.Marker({  
position: newgoogle.maps.LatLng(39.907432133833574, 116.39534009082035),  
map: map  
});varmarker4 =newgoogle.maps.Marker({  
position: newgoogle.maps.LatLng(39.90789300648029, 116.40624058825688),  
map: map  
});varmarker5 =newgoogle.maps.Marker({  
position: newgoogle.maps.LatLng(39.90795884517671, 116.41413701159672),  
map: map  
});  
}  
google.maps.event.addDomListener(window, 'load', initialize);</script> 
</div> 
<div style="float:left;"> 
<h4>百度地图</h4> 
<div style="width:520px;height:340px;border:1px solid gray"id="container"></div> 
<p>鼠标点击的百度坐标是:(<span id="info2"></span>)</p> 
<script type="text/javascript"src="http://api.map.baidu.com/api?v=1.2"></script> 
<script type="text/javascript"> 
varmap =newBMap.Map("container");  
map.centerAndZoom(newBMap.Point(116.404, 39.915), 15);vari;varmarkers =[];  
map.addEventListener("click",function(e){  
document.getElementById("info2").innerHTML =e.point.lng +","+e.point.lat;  
});//注意:百度和谷歌的经纬度坐标顺序是相反的。  
varpoints =[newBMap.Point(116.3786889372559,39.90762965106183),newBMap.Point(116.38632786853032,39.90795884517671),newBMap.Point(116.39534009082035,39.907432133833574),newBMap.Point(116.40624058825688,39.90789300648029),newBMap.Point(116.41413701159672,39.90795884517671)  
];functioncallback(xyResult){ if(xyResult.error !=0){return;}//出错就直接返回;varpoint =newBMap.Point(xyResult.x, xyResult.y);varmarker =newBMap.Marker(point);  
map.addOverlay(marker);  
map.setCenter(point);//由于写了这句,可以每一个被转的点都是中心点的过程  
}functionmagic(){  
BMap.Convertor.transMore(points,2,callback);  
}</script> 
</div> 
</div> 
</body> 
</html> 
changeMore.js  
//2011-7-25 zhangying  
(function(){  
functionload_script(xyUrl, callback){  
varhead = document.getElementsByTagName('head')[0];  
 varscript = document.createElement('script');  
script.type = 'text/javascript';  
script.src = xyUrl;  
//借鉴了jQuery的script跨域方法  
scriptscript.onload = script.onreadystatechange = function(){  
if((!this.readyState || this.readyState === "loaded" || this.readyState === "complete")){  
callback &&callback();  
//Handle memory leak in IE  
scriptscript.onload = script.onreadystatechange = null;  
if( head &&script.parentNode ) {  
head.removeChild( script );  
}  
}  
};  
//Use insertBefore instead of appendChild to circumvent an IE6 bug.  
head.insertBefore( script, head.firstChild );  
}  
functiontransMore(points,type,callback){  
for(varindex inpoints){  
if(index >50){return;}  
varxyUrl = "http://api.map.baidu.com/ag/coord/convert?from=" + type +  
"&to=4&x=" + points[index].lng + //这里要循环读入数组points的lng数据,直到points.length完毕。  
"&y=" + points[index].lat +  
"&callbackcallback=callback";  
//动态创建script标签  
load_script(xyUrl);  
}  
}  
windowwindow.BMap = window.BMap || {};  
BMap.Convertor = {};  
BMap.Convertor.transMore = transMore;  
})();

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