/// <summary>
/// Creates a new TDRelation from an osmosis entity using the given WayResolver.
/// </summary>
/// <param name="relation">
/// the relation </param>
/// <param name="resolver">
/// the resolver </param>
/// <param name="preferredLanguages">
/// the preferred(s) language or null if no preference </param>
/// <returns> a new TDRelation if all members are valid and the relation is of a known type, null otherwise </returns>
public static TDRelation fromRelation(Relation relation, WayResolver resolver, IList <string> preferredLanguages)
{
if (relation == null)
{
return(null);
}
if (relation.Members.Empty)
{
return(null);
}
SpecialTagExtractionResult ster = OSMUtils.extractSpecialFields(relation, preferredLanguages);
short[] knownWayTags = OSMUtils.extractKnownWayTags(relation);
// special tags
// TODO what about the layer of relations?
// TODO exclude boundaries
if (!knownRelationType(ster.Type))
{
return(null);
}
IList <RelationMember> members = relation.Members;
IList <TDWay> wayMembers = new List <TDWay>();
foreach (RelationMember relationMember in members)
{
if (relationMember.MemberType != EntityType.Way)
{
continue;
}
TDWay member = resolver.getWay(relationMember.MemberId);
if (member == null)
{
LOGGER.finest("relation is missing a member, rel-id: " + relation.Id + " member id: " + relationMember.MemberId);
continue;
}
wayMembers.Add(member);
}
if (wayMembers.Count == 0)
{
LOGGER.finest("relation has no valid members: " + relation.Id);
return(null);
}
return(new TDRelation(relation.Id, ster.Layer, ster.Name, ster.Housenumber, ster.Ref, knownWayTags, wayMembers.ToArray()));
}
public override bool Equals(object obj)
{
if (this == obj)
{
return(true);
}
if (obj == null)
{
return(false);
}
if (this.GetType() != obj.GetType())
{
return(false);
}
TDWay other = (TDWay)obj;
if (this.id != other.id)
{
return(false);
}
return(true);
}
/// <summary> /// Add a way to the tile. /// </summary> /// <param name="way"> /// the way </param> public abstract void addWay(TDWay way);
