// <summary>
/// Generates the OSM output files.
/// </summary>
public void CreateLevelFilesOSM()
{
string path = _options.Directory;
string prefix = _options.Prefix;
XmlWriterSettings xs = new XmlWriterSettings();
xs.Indent = true;
for (int level = 1; level <= StressModel.LevelCount; level++)
{
string filename = Path.Combine(path, prefix + level.ToString() + ".osm");
if (File.Exists(filename))
{
File.Delete(filename);
}
using (XmlWriter writer = XmlWriter.Create(filename, xs)) {
writer.WriteStartDocument();
writer.WriteStartElement("osm");
writer.WriteAttributeString("version", "0.6");
writer.WriteAttributeString("generator", "Bike Ottawa");
{
writer.WriteStartElement("note");
writer.WriteString("The data included in this document originated from www.openstreetmap.org and was converted by Bike Ottawa. The data is made available under ODbL.");
writer.WriteEndElement();
writer.WriteStartElement("meta");
writer.WriteAttributeString("osm_base", _osmBase);
writer.WriteEndElement();
writer.WriteStartElement("bounds");
writer.WriteAttributeString("minlat", _minLat);
writer.WriteAttributeString("minlon", _minLon);
writer.WriteAttributeString("maxlat", _maxLat);
writer.WriteAttributeString("maxlon", _maxLon);
writer.WriteEndElement();
foreach (KeyValuePair <string, Node> kvnode in _nodes)
{
Node n = kvnode.Value;
if (n.IsLevel(level))
{
writer.WriteStartElement("node");
writer.WriteAttributeString("id", kvnode.Key);
writer.WriteAttributeString("lat", n.Lat);
writer.WriteAttributeString("lon", n.Lon);
writer.WriteEndElement();
}
}
foreach (KeyValuePair <string, Way> kvway in _ways)
{
Way w = kvway.Value;
if (w.Level == level)
{
writer.WriteStartElement("way");
writer.WriteAttributeString("id", kvway.Key);
{
foreach (string nd in w.Nodes)
{
writer.WriteStartElement("nd");
writer.WriteAttributeString("ref", nd);
writer.WriteEndElement();
}
}
writer.WriteEndElement();
}
}
}
writer.WriteEndElement();
writer.WriteEndDocument();
}
}
}
/// <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);
}
}
