#Leaflet Routing Machine / Google Directions API

Extends Leaflet Routing Machine with support for Google Directions API.

For more information on the use of this router, the Leaflet Routing Machine tutorial on alternative routers is recommended.

Installing lrm-graphhopper

Use npm to install the lrm-google package.

npm install --save lrm-google

Include the appropriate javascript dependencies in your html file.

<script type="text/javascript" src="https://maps.googleapis.com/maps/api/js?key=<YOUR GOOGLE DIRECTIONS API KEY HERE>"></script>

require("lrm-google");

Using lrm-google

You will need a valid Google Directions API in order to use this router.

Basic Usage:

L.Routing.control({
  waypoints: [
    L.latLng(1.350794, 103.835950),
    L.latLng(1.392755, 103.913670)
  ],
  router: new L.Routing.Google(),
  lineOptions: {
        styles: [
            {color: 'black', opacity: 0.3, weight: 11},
            {color: 'white', opacity: 0.9, weight: 9},
            {color: 'blue', opacity: 1, weight: 3}
        ]
    }
}).addTo(map);

Specifying custom routing options (See the Directions Service API for more details):

L.Routing.control({
  waypoints: [
    L.latLng(1.350794, 103.835950),
    L.latLng(1.392755, 103.913670)
  ],
  router: new L.Routing.Google({
    travelMode: google.maps.TravelMode.TRANSIT,
    unitSystem: google.maps.UnitSystem.METRIC,
    provideRouteAlternatives: true
  }),
  lineOptions: {
        styles: [
            {color: 'black', opacity: 0.3, weight: 11},
            {color: 'white', opacity: 0.9, weight: 9},
            {color: 'blue', opacity: 1, weight: 3}
        ]
    }
}).addTo(map);