javascript - 谷歌地图 - 如何获得以米为单位的两点之间的距离？

Question

我有这些坐标:

(45.463688, 9.18814) 
(46.0438317, 9.75936230000002)

并且我需要(我认为是通过 Google API V3)获得这两个点之间的距离(以米为单位)。我该怎么做？

Answer 1

如果您想使用 v3 google maps API，可以使用以下函数: 注意:您必须将 &libraries=geometry 添加到您的脚本源

<script type="text/javascript" src="http://maps.google.com/maps/api/js?sensor=false&libraries=geometry"></script>

<script>
var p1 = new google.maps.LatLng(45.463688, 9.18814);
var p2 = new google.maps.LatLng(46.0438317, 9.75936230000002);

alert(calcDistance(p1, p2));

//calculates distance between two points in km's
function calcDistance(p1, p2) {
  return (google.maps.geometry.spherical.computeDistanceBetween(p1, p2) / 1000).toFixed(2);
}

</script>