API地圖座標轉化（批量轉換座標）

標籤：c   style   java   http   a   ext   

```html

批量轉換座標（據說有50次/秒的限制哦）

Google地圖

滑鼠點擊的Google座標是：

百度地圖

滑鼠點擊的百度座標是：（）

```

```javascript // (function(){ function loadscript(xyUrl, callback){ var head = document.getElementsByTagName(‘head‘)[0]; var script = document.createElement(‘script‘); script.type = ‘text/javascript‘; script.src = xyUrl; //借鑒了jQuery的script跨域方法 script.onload = script.onreadystatechange = function(){ if((!this.readyState || this.readyState === "loaded" || this.readyState === "complete")){ callback && callback(); // Handle memory leak in IE script.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 ); } function transMore(points,type,callback){ for(var index in points){ if(index > 50){return;} var xyUrl = "http://api.map.baidu.com/ag/coord/convert?from=" + type + "&to=4&x=" + points[index].lng + //這裡要迴圈讀入數組points的lng資料，直到points.length完畢。 "&y=" + points[index].lat + "&callback=callback"; //動態建立script標籤 loadscript(xyUrl); } }

window.BMap = window.BMap || {}; BMap.Convertor = {}; BMap.Convertor.transMore = transMore; })(); ```