游客

标题:通过经纬度获取中心点,以及绑定的缩放级别
正文:
//根据经纬度的距离获取地图的缩放级 function getRoom(diff){ var room = new Array(0, 1, 2, 3, 4, 5, 6,7,8, 9, 10, 11, 12, 13, 14); var diffArr = new Array(360,180,90,45,22,11,5,2.5,1.25,0.6,0.3,0.15,0.07,0.03,0); //等级room和diffArr的关系是：360/Math.Pow(2,room)=diffArr for(var i = 0; i < diffArr.length; i ++){ if((diff - diffArr[i]) >= 0){ return room[i]; } } &nb
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