public static Graph CreateOSMGraph(
string OSMGraphFile, string intersectionsFile)
{
Graph g = new Graph();
g.nodes = new Dictionary <long, Node>();
try
{
StreamReader r = new StreamReader(OSMGraphFile);
Dictionary <long, Dictionary <long, int> > tmpEdges
= ProcessOSMGraphFile(r, g);
Console.WriteLine("Before IS: " + tmpEdges.Keys.Count);
HandleIntersections(g, tmpEdges, intersectionsFile);
Console.WriteLine("After IS: " + tmpEdges.Keys.Count);
AddEdges(g, tmpEdges);
}
catch
{
throw new InvalidDataException();
}
/*
* maxLat = 51.0404296;
* minLat = 48.5874212;
* maxLon = 18.8446152;
* minLot = 12.1295496
*/
g.SetBounds(48.5874212, 51.0404296, 12.1295496, 18.8446152);
return(g);
}
public void ReadFile(string inputFileName, bool inside)
{
try
{
file = new StreamReader(inputFileName);
}
catch (IOException)
{
return;
}
string line;
const string way = " \"type\": \"way\",";
long id;
StringBuilder SBid;
StringBuilder SBnodes;
while (!file.EndOfStream)
{
line = file.ReadLine();
if ((line == way) | (line == " \"type\": \"way\","))
{
SBid = new StringBuilder();
char c = ' ';
while (c != ':')
c = (char)file.Read();
c = (char)file.Read();
c = (char)file.Read();
while (c != ',')
{
SBid.Append(c);
c = (char)file.Read();
}
id = long.Parse(SBid.ToString());
line = file.ReadLine();
line = file.ReadLine();
line = file.ReadLine();
SBnodes = new StringBuilder();
while ((line != " ],") && (line != " ]")
&& (line != " ],"))
{
SBnodes.Append(line);
line = file.ReadLine();
}
string oneWay = "no";
bool found = false;
while ((line != " }") && (line != " }")
&& (line != " }") && (!found) && (!file.EndOfStream))
{
line = file.ReadLine();
string[] split = line.Split('\"');
if (split.Length > 2 && split[1] == "oneway")
{
oneWay = split[3];
found = true;
}
}
graph.GetEdges(oneWay, SBnodes.ToString());
}
else if ((line == " \"type\": \"node\",")
| (line == " \"type\": \"node\","))
{
char[] sep = new char[] { ' ', ',' };
line = file.ReadLine();
string[] words = line.Split(
sep, StringSplitOptions.RemoveEmptyEntries);
long idNode = long.Parse(words[1]);
line = file.ReadLine();
words = line.Split(sep, StringSplitOptions.RemoveEmptyEntries);
double lat = double.Parse(words[1]);
if (lat < minLat)
minLat = lat;
if (lat > maxLat)
maxLat = lat;
line = file.ReadLine();
words = line.Split(sep, StringSplitOptions.RemoveEmptyEntries);
double lon = double.Parse(words[1]);
if (lon < minLon)
minLon = lon;
if (lon > maxLon)
maxLon = lon;
Node node = new Node(idNode);
Node nodeOut;
if (idNode == 74122365)
lat = lat;
node.SetData(lat, lon);
if (!graph.nodes.TryGetValue(idNode, out nodeOut))
{
graph.nodes.Add(idNode, node);
node.inside = inside;
}
else
{
nodeOut.SetData(lat, lon);
nodeOut.inside = inside;
}
}
}
List<long> deletedC = new List<long>();
graph.SetBounds(minLat, maxLat, minLon, maxLon);
}