ジオフェンシングを通じて特定のエリアに基づいてアクションまたはイベントをトリガーする

// Get the geofencing service
platform.getGeofencingService().geofence({
  // Specify the map layer to use for geofencing (in this case, "ROAD_GEOM_FC2", representing regional roads)
  layers: 'ROAD_GEOM_FC2',

  // Define the geofence area as a point with a radius of 5000 meters
  in: 'point:52.5189,13.4158;r=5000'
},
// Callback function to handle the response from the geofencing service
(response) => {
  // Create a new object group to hold the road polylines
  const group = new H.map.Group();

  // Iterate over each geometry (shape) returned by the geofencing service
  response.geometries.forEach((g) => {
    // Convert the representation of the geometry to a usable format
    const parser = H.util.wkt.toGeometry(g.geometry)

    // Create a new polyline object from the parsed geometry
    const poly = new H.map.Polyline(parser, {
      // Style the road polylines with a red stroke color and a line width of 4 pixels
      style: {
        strokeColor: 'red',
        lineWidth: 4
      }
    });

    // Add the polyline to the map group
    group.addObject(poly);
  });

  // Add the map group to the main map object
  map.addObject(group);

  // Center the map at the bounding box encompassing all polyline objects within the group
  map.getViewModel().setLookAtData({
    bounds: group.getBoundingBox()
  });
},
// Error callback function (called if there's an error with the geofencing request)
console.error
);