geolocation - 计算传单中两点之间的距离

Question

如何计算Leaflet-ionic2中两个标记之间的距离？

不知道，我希望有一个Algorithme，只要我选择一个标记，它就会向我显示我的位置和标记之间的距离。

谢谢..

Answer 1

Leaflet manual提到distanceTo函数，该函数以米为单位计算距离。

从Google Groups抄袭的示例：

function createMarker()
{
     var markerFrom = L.circleMarker([28.6100,77.2300], { color: "#F00", radius: 10 });
     var markerTo =  L.circleMarker([18.9750,72.8258], { color: "#4AFF00", radius: 10 });
     var from = markerFrom.getLatLng();
     var to = markerTo.getLatLng();
     markerFrom.bindPopup('Delhi ' + (from).toString());
     markerTo.bindPopup('Mumbai ' + (to).toString());
     map.addLayer(markerTo);
     map.addLayer(markerFrom);
     getDistance(from, to);
}

function getDistance(from, to)
{
    var container = document.getElementById('distance');
    container.innerHTML = ("New Delhi to Mumbai - " + (from.distanceTo(to)).toFixed(0)/1000) + ' km';
}