private void AddStoreMarkerToCluster(MapCluster cluster, IGeoCoordinate store)
{
var storeCoordinate = store.GetCoordinate();
if (cluster.Center == null)
{
cluster.Center = storeCoordinate;
}
else
{
var l = cluster.ItemsCount + 1;
var lat = (cluster.Center.Lat * (l - 1) + storeCoordinate.Lat) / l;
var lng = (cluster.Center.Lng * (l - 1) + storeCoordinate.Lng) / l;
cluster.Center = new Coordinate(lat, lng);
}
var xScale = ZoomLngScales[ZoomLevel];
var yScale = ZoomLatScales[ZoomLevel];
cluster.Tile = new Bounds(new Coordinate(cluster.Center.Lat - yScale / 2, cluster.Center.Lng - xScale / 2),
new Coordinate(cluster.Center.Lat + yScale / 2, cluster.Center.Lng + xScale / 2));
cluster.ItemsCount++;
cluster.StoreNumber = cluster.ItemsCount == 1 ? store.Id : cluster.StoreNumber + ";" + store.Id;
}
private void AddToClosestCluster(ClusteringContext context, IGeoCoordinate store)
{
var clusterToAdd = context.Clusters.FirstOrDefault(cluster => InBounds(cluster.Tile, store));
if (clusterToAdd != null)
{
AddStoreMarkerToCluster(clusterToAdd, store);
}
else
{
clusterToAdd = new MapCluster {
SearchIndex = context.Clusters.Count + 1
};
AddStoreMarkerToCluster(clusterToAdd, store);
context.Clusters.Add(clusterToAdd);
}
}
private void OnClusterTapped(MapCluster sender, Object args) => Frame.Navigate(typeof(PhotoListPage), sender.Objects);
