public LTSAnalyzer(Options options)
{
_nodes = new Dictionary <string, Node>();
_ways = new Dictionary <string, Way>();
_relations = new Dictionary <string, Relation>();
_options = options;
_stressModel = new StressModel();
_usedNodes = new HashSet <string>();
}
/// <summary>
/// Processes a way element at the current read position in the reader.
/// Exits with the reader positioned at the next sibling element.
/// </summary>
/// <param name="i_reader">An XmlReader object with the read position on a way element.</param>
private void ProcessWays1(XmlReader reader)
{
if (reader.IsStartElement("way"))
{
Way way = new Way();
string id = reader.GetAttribute("id");
if (reader.IsEmptyElement)
{
// Next node.
reader.Read();
}
else
{
while (reader.Read())
{
if (reader.Name == "tag")
{
way.AddTag(reader);
}
else if (reader.Name == "nd")
{
string nodeRef = reader.GetAttribute("ref");
way.Nodes.Add(nodeRef);
}
else
{
if (reader.NodeType == XmlNodeType.EndElement)
{
reader.Read();
break;
}
else
{
throw new Exception("Unexpected element: " + reader.ReadOuterXml());
}
}
}
}
// This is a preliminary test to make sure we only add ways that are potentially valid
// routes. This could be expanded to further filter the ways but this will typically
// be done in the analysis phase.
if (_options.IncludeBannedHighways || StressModel.BikingPermitted(id, way))
{
if (way.HasTag("highway"))
{
_ways.Add(id, way);
foreach (string nodeRef in way.Nodes)
{
if (!_usedNodes.Contains(nodeRef))
{
_usedNodes.Add(nodeRef);
}
}
}
}
}
else
{
throw new Exception("Unexpected node: " + reader.Name);
}
}
