Finding a multipart route

Calculate and show a route between points in different buildings. Click the blue entrance marker for Westport House to begin, and ‘Get Route’ to query the <a href=https://github.com/wrld3d/wrld-routing-api>WRLD Routing API</a>. Outdoor route data is currently limited to Dundee.

<!DOCTYPE HTML>
<html>
  <head>
    <script src="https://cdn-webgl.wrld3d.com/wrldjs/dist/latest/wrld.js"></script>
    <link href="https://cdnjs.cloudflare.com/ajax/libs/leaflet/1.0.1/leaflet.css" rel="stylesheet" />
    <style>
      #floorButtons {
        position: absolute;
        z-index: 20;
      }

      #floorButtons button {
        display: block;
        width: 100%;
      }
    </style>
  </head>
  
  <body>
  <div style="position: relative">
    <div id="floorButtons" style="visibility: hidden">
      <button type="button" onclick="getRoute()">Get Route</button>
      <button type="button" onclick="moveUp()">Move Up</button>
      <button type="button" onclick="moveDown()">Move Down</button>
      <button type="button" onclick="exitIndoors()">Exit</button>
    </div>

    <div id="map" style="height: 400px"></div>

    <script>
      var map = L.Wrld.map("map", "your_api_key_here", {
        center: [56.4602727,-2.9786788],
        zoom: 18,
        indoorsEnabled: true,
      });

      var routeLines = [];
      var _onRoutesLoaded = function(routes) {
          for (var stepIndex = 0; stepIndex < routes[0].length; ++stepIndex) {
             var step = routes[0][stepIndex];
             var options = {
				displayOption: "currentMap"
			 };
             if (step.indoorMapId) {
               options.indoorMapId = step.indoorMapId;
               options.indoorMapFloorId = step.indoorMapFloorId;
             }
             var routeLine = new L.polyline(step.points, options);
             routeLine.addTo(map);
             routeLines.push(routeLine);
          }
      };

      var getRoute = function() {
          var startPoint = [-2.983122836389253, 56.461231653264029, 2];
          var endPoint = [-2.9783117, 56.4600344, 2]; 

          map.routes.getRoute([startPoint, endPoint], _onRoutesLoaded);
      };

      function moveUp() {
        map.indoors.moveUp();
      }

      function moveDown() {
        map.indoors.moveDown();
      }

      function exitIndoors() {
        map.indoors.exit();
      }

      function toggleIndoorButtonVisibility() {
        var element = document.getElementById("floorButtons");
        element.style.visibility = element.style.visibility === "visible" ? "hidden" : "visible";
      }

      function onIndoorMapEntered(event) {
        toggleIndoorButtonVisibility();
        var buildingId = event.indoorMap.getIndoorMapId();
      }

      function onIndoorMapExited(event) {
        toggleIndoorButtonVisibility();
      }

      map.indoors.on("indoormapenter", onIndoorMapEntered);
      map.indoors.on("indoormapexit", onIndoorMapExited);
    </script>

  </div>
  </body>
</html>
v0.1.2097