/// <summary>
/// Returns all objects stored in this node/nodes under this node.
/// </summary>
/// <returns>A list of objects that are stored under this node.</returns>
private List <T> GetAllObjectsUnder()
{
if (isLeaf)
{
return(nodeBucket.Where(x => x != null).ToList());
}
else
{
List <T> allObjects = new List <T>();
allObjects.AddRange(NE.GetAllObjectsUnder());
allObjects.AddRange(NW.GetAllObjectsUnder());
allObjects.AddRange(SE.GetAllObjectsUnder());
allObjects.AddRange(SW.GetAllObjectsUnder());
return(allObjects);
}
}