public static Cluster Initialize(ISupportCoordLocation item)
{
List <ISupportCoordLocation> items = new List <ISupportCoordLocation>();
items.Add(item);
return(new Cluster(items));
}
MapVectorItemCollection ClusterizeImpl(MapVectorItemCollection sourceItems)
{
// Separate localizable and non localizable items.
List <MapItem> nonLocalizableItems = new List <MapItem>();
List <Cluster> clusters = new List <Cluster>();
foreach (MapItem item in sourceItems)
{
ISupportCoordLocation localizableItem = item as ISupportCoordLocation;
if (localizableItem != null)
{
clusters.Add(Cluster.Initialize(localizableItem));
}
else
{
nonLocalizableItems.Add(item);
}
}
// Arrange initial clusters in increasing order of distance to a closest cluster.
clusters = Arrange(clusters);
// Aggregate localizable items.
while (clusters.Count > ClusterCount)
{
MergeCloserstClusters(ref clusters);
}
// Convert internal cluster helpers to Map items.
MapVectorItemCollection clusterRepresentatives = CreateItemsCollection();
for (int i = 0; i < clusters.Count; ++i)
{
Cluster cluster = clusters[i];
MapDot representative = new MapDot()
{
Location = new GeoPoint(cluster.CenterPoint.Y, cluster.CenterPoint.X), Size = 100
};
for (int j = 0; j < cluster.Items.Count; ++j)
{
representative.ClusteredItems.Add(cluster.Items[j] as MapItem);
}
clusterRepresentatives.Add(representative);
}
for (int i = 0; i < nonLocalizableItems.Count; ++i)
{
clusterRepresentatives.Add(nonLocalizableItems[i]);
}
return(clusterRepresentatives);
}
MapItemCollection ClusterizeImpl(IEnumerable <MapItem> sourceItems)
{
// Separate localizable and non localizable items.
List <MapItem> nonLocalizableItems = new List <MapItem>();
List <Cluster> clusters = new List <Cluster>();
foreach (MapItem item in sourceItems)
{
ISupportCoordLocation localizableItem = item as ISupportCoordLocation;
if (localizableItem != null)
{
clusters.Add(Cluster.Initialize(localizableItem));
}
else
{
nonLocalizableItems.Add(item);
}
}
// Arrange initial clusters in increasing order of distance to a closest cluster.
clusters = Arrange(clusters);
// Aggregate localizable items.
while (clusters.Count > ClusterCount)
{
MergeCloserstClusters(ref clusters);
}
// Convert internal cluster helpers to Map items.
MapItemCollection clusterRepresentatives = new MapItemCollection(owner);
for (int i = 0; i < clusters.Count; ++i)
{
Cluster cluster = clusters[i];
MapDot representative = new MapDot()
{
Location = new GeoPoint(cluster.CenterPoint.Y, cluster.CenterPoint.X), Size = 100
};
representative.ClusteredItems = cluster.Items.Select(item => item as MapItem).ToList();
representative.TitleOptions.Pattern = representative.ClusteredItems.Count.ToString();
clusterRepresentatives.Add(representative);
}
clusterRepresentatives.AddRange(nonLocalizableItems);
return(clusterRepresentatives);
}
