public static ElementContainer ToElementContainer(this List <CustomObject> queryResults)
{
List <Way> ways = new List <Way>();
List <Node> nodes = new List <Node>();
List <Relation> relations = new List <Relation>();
foreach (CustomObject result in queryResults)
{
if (result.CustomData.ContainsKey("elements"))
{
List <object> elements = (List <object>)result.CustomData["elements"];// .Cast<CustomObject>();
CustomObject tags = new CustomObject();
foreach (object ele in elements)
{
try
{
CustomObject element = (CustomObject)ele;
long id = 0;
if (element.CustomData["id"] is int)
{
id = (int)element.CustomData["id"];
}
if (element.CustomData["id"] is long)
{
id = (long)element.CustomData["id"];
}
if (element.CustomData.ContainsKey("tags"))
{
tags = (CustomObject)element.CustomData["tags"];
}
if ((string)element.CustomData["type"] == "node")
{
double latitude = (double)element.CustomData["lat"];
double longitude = (double)element.CustomData["lon"];
Node node = new Node()
{
Latitude = latitude,
Longitude = longitude,
OsmID = id
};
node.AddTags(tags);
nodes.Add(node);
}
if ((string)element.CustomData["type"] == "way")
{
List <object> ids = new List <object>();
if (element.CustomData.ContainsKey("nodes"))
{
ids = (List <object>)element.CustomData["nodes"];
}
Way way = new Way()
{
OsmID = id
};
way.AddTags(tags);
way.AddNodeIds(ids);
ways.Add(way);
}
if ((string)element.CustomData["type"] == "relation")
{
List <object> members = new List <object>();
if (element.CustomData.ContainsKey("members"))
{
members = (List <object>)element.CustomData["members"];
}
Relation relation = new Relation()
{
OsmID = id
};
relation.AddTags(tags);
relation.AddMembers(members);
relations.Add(relation);
}
}
catch (Exception e)
{
throw new ArgumentException("Unexpected data format from OpenStreetMap " + e.Message);
}
}
}
}
foreach (Way way in ways)
{
List <Node> waynodes = new List <Node>();
foreach (Int64 id in way.NodeOsmIds)
{
waynodes.Add(nodes.Find(x => x.OsmID == id));
}
way.Nodes = waynodes;
}
return(new ElementContainer()
{
Nodes = nodes,
Ways = ways,
Relations = relations
});
}
