Javascript calculates the distance between two markers (Google Map V3)_javascript skills

Google Map V3 javascript calculates the distance between two markers
When developing maps, the most commonly used ones are some marker operations and interactions. Let’s briefly introduce the distance calculation between two markers.
Google map api is very convenient. As long as it is commonly used, it basically has interfaces.
1. Create two marker points

Copy the code The code is as follows:

var oldMarker = new google.maps.Marker({
position: new google.maps.LatLng("31.95678", "177.898673"),
map: map,
title:"old "
});
var newMarker = new google.maps.Marker({
position: new google.maps.LatLng("31.45678", "177.098673"),
map: map,
title:"new"
});

2. Load the geometry library

Copy code The code is as follows:

Instructions: libraries=geometry
3. Calculate distance

Copy code The code is as follows:

var meters = google.maps.geometry.spherical.computeDistanceBetween(oldMarker.getPosition(), newMarker.getPosition ());
document.getElementById("distance").innerText = meters "meters";

Description: The unit is meters
oldMarker.getPosition() Get the current position of oldmarker (latitude and longitude)