我使用google map进行编程
var point1 = new GLatLng(24, 114);
然后使用
var lat1 = point1.latRadians();
怎么alert(lat1)为NAN
有什么错误吗?整个代码为:
说明:from1为24,114 to1为23,113都是正常的经纬度
function getDistance2(from, to, unit){
var from1 = from.replace("(","").replace(")","").trim();
var to1 = to.replace("(","").replace(")","").trim();
var point1 = new GLatLng(from1);
var point = new GLatLng(to1);
//地球半径
var R = 6378.137;
//千米英里转化
var M = 1.609344;
with(Math)
{
var lat1 = point1.latRadians();
//执行到这里就不能得到弧度的纬度
var lng1 = point1.lngRadians();
var lat2 = point.latRadians();
var lng2 = point.lngRadians();
var dist = 2 * asin(sqrt(pow((sin((lat1 - lat2)/2)), 2) + cos(lat1) * cos(lat2)
* pow((sin((lng1 - lng2) / 2)), 2))) * R;
}
if(unit=="M"){
dist = dist / M;
}
return dist;
}