public static void FindNodesInXML(XmlReader reader, ref RequestHandler request, int fileIndex, bool onlyBuildings)
{
string currentNodeId = "";
double currentLat = 0;
double currentLon = 0;
var currentNodeMetaData = new Dictionary <string, string>();
var xli = (IXmlLineInfo)reader; // Used to track read progress
var nodesCollected = 0;
// Loop (linearly) through all tags. Keep track of each node's metadata and coords while looping through its tags.
// When encountering the next node add the tracked data.
while (reader.Read())
{
if (reader.IsStartElement())
{
if (reader.Name == "node")
{
currentNodeId = reader.GetAttribute("id");
currentLat = Convert.ToDouble(reader.GetAttribute("lat"), CI);
currentLon = Convert.ToDouble(reader.GetAttribute("lon"), CI);
}
else if (reader.Name == "tag")
{
currentNodeMetaData[reader.GetAttribute("k").ToLower(CI)] = reader.GetAttribute("v");
}
else if (reader.Name == "way")
{
break;
}
}
else if (reader.Name == "node") // Closing out a node tag
{
request.AddNodeIfMatchesRequest(currentNodeId, currentNodeMetaData, currentLat, currentLon);
currentNodeMetaData.Clear();
nodesCollected++;
if (nodesCollected % 3000 == 0) // roughly every half a second
{
ProgressReporting.Ping(xli.LineNumber, fileIndex, request);
}
}
}
}
public static void FindWaysInXML(XmlReader reader, ref RequestHandler request, int fileIndex, bool onlyBuildings)
{
string currentWayId = "";
var currentWayMetaData = new Dictionary <string, string>();
var currentWayNodes = new List <Coord>();
var allNodes = new Dictionary <string, Coord>();
var inANode = false; // Only needed for ways
var xli = (IXmlLineInfo)reader; // Used to track read progress
var waysCollected = 0;
while (reader.Read())
{
if (reader.IsStartElement())
{
if (reader.Name == "way")
{
currentWayId = reader.GetAttribute("id");
inANode = true; // Add tag data
}
else if (reader.Name == "node")
{
var nodeId = reader.GetAttribute("id");
allNodes[nodeId] = new Coord(
Convert.ToDouble(reader.GetAttribute("lat"), CI),
Convert.ToDouble(reader.GetAttribute("lon"), CI));
}
else if (inANode && reader.Name == "nd")
{
var ndId = reader.GetAttribute("ref");
currentWayNodes.Add(allNodes[ndId]);
}
else if (inANode && reader.Name == "tag")
{
currentWayMetaData[reader.GetAttribute("k").ToLower(CI)] = reader.GetAttribute("v");
}
else if (reader.Name == "relation")
{
break;
}
}
else
{
inANode = false;
if (reader.Name == "way") // Closing out a way tag
{
// If finished looping over a prior node
if (onlyBuildings)
{
request.AddBuildingIfMatchesRequest(currentWayId, currentWayMetaData, currentWayNodes);
}
else
{
request.AddWayIfMatchesRequest(currentWayId, currentWayMetaData, currentWayNodes);
}
waysCollected += 1;
if (waysCollected % 2000 == 0)
{
ProgressReporting.Ping(xli.LineNumber, fileIndex, request);
}
}
currentWayMetaData.Clear();
currentWayNodes.Clear();
}
}
}
