/// <summary>
/// Completes the collection, fetching optional missing elements
/// </summary>
/// <param name="source">The source to search for missing elements from</param>
/// <param name="relation_nodes">Find missing nodes from relations?</param>
/// <param name="relation_ways">Find missing ways from relations?</param>
/// <param name="relation_relations">Find missing relations from relations?</param>
public OsmGeoCollection Complete(IDataSourceReadOnly source,
bool relation_nodes = false,
bool relation_ways = false,
bool relation_relations = false)
{
var missing_node_ids = new List <long>();
var missing_way_ids = new List <long>();
// search relations for missing relations
if (relation_relations)
{
var missing_relation_ids = new List <long>();
do
{
foreach (var relation in Relations)
{
foreach (var member in relation.Value.Members)
{
if (member.MemberType.Value == OsmGeoType.Relation)
{
if (!Relations.ContainsKey(member.MemberId.Value))
{
missing_relation_ids.Add(member.MemberId.Value);
}
}
}
}
var found_relations = source.GetRelations(missing_relation_ids);
foreach (var found_relation in found_relations)
{
if (!Relations.ContainsKey(found_relation.Id.Value))
{
Relations.Add(found_relation.Id.Value, found_relation);
}
}
} while (missing_relation_ids.Count > 0);
}
// search relations for missing ways and nodes
if (relation_ways || relation_nodes)
{
foreach (var relation in Relations)
{
foreach (var member in relation.Value.Members)
{
if (member.MemberType.Value == OsmGeoType.Node)
{
if (relation_nodes)
{
if (!Nodes.ContainsKey(member.MemberId.Value))
{
missing_node_ids.Add(member.MemberId.Value);
}
}
}
else if (member.MemberType.Value == OsmGeoType.Way)
{
if (relation_ways)
{
if (!Ways.ContainsKey(member.MemberId.Value))
{
missing_way_ids.Add(member.MemberId.Value);
}
}
}
else if (member.MemberType.Value == OsmGeoType.Relation)
{
if (relation_relations)
{
if (!Relations.ContainsKey(member.MemberId.Value))
{
throw new NotImplementedException();
}
}
}
}
}
}
// fetch missing ways
var found_ways = source.GetWays(missing_way_ids);
foreach (var found_way in found_ways)
{
Ways.Add(found_way.Id.Value, found_way);
}
// search ways for missing nodes
foreach (var way in Ways)
{
foreach (var node_id in way.Value.Nodes)
{
if (!Nodes.ContainsKey(node_id))
{
missing_node_ids.Add(node_id);
}
}
}
// fetch missing nodes
var found_nodes = source.GetNodes(missing_node_ids);
foreach (var found_node in found_nodes)
{
Nodes.Add(found_node.Id.Value, found_node);
}
return(this);
}