最近作本身的網站,調用百度地圖的js API,在頁面上顯示一些座標點。遇到一個問題,就是當座標點超過10個時,convertor.translate(tempPointArr, 1, 5, translateCallback)執行完後,在translateCallback中數據的狀態不是0,應該就是GPS經緯度轉換沒有完成,致使座標點不會被添加到地圖上顯示。不知道緣由所在,看API文檔應該能找到答案,無奈裝的艾普寬帶,如今百度地圖的js API網頁打不開。把座標轉換分紅10個一組來作,能夠解決這個問題。函數
var groups = 0; //座標轉換完以後的回調函數 translateCallback = function (data){ if(data.status === 0) { for (var i = 0; i < data.points.length; i++) { var marker = new BMap.Marker(data.points[i]); var label = new BMap.Label(groups * 10 + i,{offset:new BMap.Size(20,-10)}); marker.setLabel(label); //添加百度label map.addOverlay(marker); } groups++; map.setCenter(data.points[i-1]); //alert("the center is the: " + (i - 1) + "th point"); } else { alert("data status is not 0"); } } setTimeout(function(){ var convertor = new BMap.Convertor(); var n = 10; alert("the totall number of points is : " + pointArr.length); var remain = pointArr.length % 10; var rounds = (pointArr.length - remain) / 10; alert(rounds + " groups of points and " + remain + " points to translate"); var tempPointArr = []; var index = 0; for(var r = 0; r < rounds; r++) { tempPointArr = []; for(var i = 0; i < n; i++) { alert("the index of point: " + index); tempPointArr.push(pointArr[index]); index++; } convertor.translate(tempPointArr, 1, 5, translateCallback); } tempPointArr = []; for(var i = 0; i < remain; i++) { alert("the index of point: " + index); tempPointArr.push(pointArr[index]); index++; } convertor.translate(tempPointArr, 1, 5, translateCallback); }, 1000);