/// <summary>
/// Load the OpenMap data resource file.
/// </summary>
/// <param name="resourceFile">Path to the resource file. The file must exist.</param>
public void Read(string resourceFile)
{
nodes = new Dictionary <ulong, OsmNode>();
ways = new Dictionary <ulong, OsmWay>();
busStops = new Dictionary <string, ulong>();
nearestRoadNodesToBusStops = new Dictionary <ulong, ulong>();
roadNodes = new HashSet <ulong>();
var xmlText = File.ReadAllText(resourceFile);//MapFile.mapdata;//
XmlDocument doc = new XmlDocument();
doc.LoadXml(xmlText);
SetBounds(doc.SelectSingleNode("/osm/bounds"));
GetNodes(doc.SelectNodes("/osm/node"));
GetWays(doc.SelectNodes("/osm/way"));
setClosestNodes();
float minx = (float)MercatorProjection.lonToX(bounds.MinLon);
float maxx = (float)MercatorProjection.lonToX(bounds.MaxLon);
float miny = (float)MercatorProjection.latToY(bounds.MinLat);
float maxy = (float)MercatorProjection.latToY(bounds.MaxLat);
}
/// <summary>
/// Constructor.
/// </summary>
/// <param name="node">Xml node</param>
public OsmBounds(XmlNode node)
{
// Get the values from the node
MinLat = GetAttribute <float>("minlat", node.Attributes);
MaxLat = GetAttribute <float>("maxlat", node.Attributes);
MinLon = GetAttribute <float>("minlon", node.Attributes);
MaxLon = GetAttribute <float>("maxlon", node.Attributes);
// Create the centre location
float x = (float)((MercatorProjection.lonToX(MaxLon) + MercatorProjection.lonToX(MinLon)) / 2);
float y = (float)((MercatorProjection.latToY(MaxLat) + MercatorProjection.latToY(MinLat)) / 2);
Centre = new Coordinates(x, 0, y);
}
// /// <summary>
// /// Implicit conversion between OsmNode and Vector3.
// /// </summary>
// /// <param name="node">OsmNode instance</param>
// public static implicit operator Coordinates (OsmNode node)
// {
// return new Coordinates(node.X, node.Y, 0);
// }
/// <summary>
/// Constructor.
/// </summary>
/// <param name="node">Xml node</param>
public OsmNode(XmlNode node, OsmNode firstNode)
{
// Get the attribute values
Id = GetAttribute <ulong>("id", node.Attributes);
Latitude = GetAttribute <float>("lat", node.Attributes);
Longitude = GetAttribute <float>("lon", node.Attributes);
// Calculate the position in Unity units
X = MercatorProjection.lonToX(Longitude) * 0.1f;
Y = MercatorProjection.latToY(Latitude) * 0.1f;
if (firstNode == null)
{
coords = new Coordinates(MapReader.offsetX, 0, MapReader.offsetY);
}
else
{
coords = new Coordinates((X - firstNode.X) + MapReader.offsetX, 0, (Y - firstNode.Y) + MapReader.offsetY);
}
XmlNodeList tags = node.SelectNodes("tag");
foreach (XmlNode t in tags)
{
string key = GetAttribute <string>("k", t.Attributes);
if (key == "highway")
{
string value = GetAttribute <string>("v", t.Attributes);
if (value == "bus_stop")
{
isBusStop = true;
}
}
else if (key == "naptan:AtcoCode")
{
string value = GetAttribute <string>("v", t.Attributes);
actoCode = value;
}
}
if (isBusStop && actoCode == "")
{
//throw new System.Exception("Is bus stop but no actoCode: node " + Id);
isBusStop = false;
}
}
