public static void Main(string[] args)
{
client = new TwitterClient(ConsumerKey, ConsumerSecret, AccessToken, AccessTokenSecret);
client.OnRequestAuthenticationResponse += new TwitterClient.AuthenticationHandler(client_OnRequestAuthenticationResponse);
if (!client.Authenticated)
client.Authenticate();
Properties.Settings.Default.AccessToken = client.AccessToken;
Properties.Settings.Default.AccessTokenSecret = client.AccessTokenSecret;
Properties.Settings.Default.Save();
queryString = client.Trends.ToArray()[0];
Console.WriteLine("Starting monitoring of trend: "+queryString);
network = new Network();
//NetworkVisualizer visualizer = new NetworkVisualizer(network, new NETGen.Layout.FruchtermanReingold.FruchtermanReingoldLayout(10), new PresentationSettings(2000d, 1000d, 0d));
//NetworkDisplay display = new NetworkDisplay(visualizer);
counter = 0;
stream = client.CreateStatusFilter(client.Trends.ToArray()[0]);
stream.OnNewJsonObject += new TwitterStream.NewJSONHandler(stream_OnNewJsonObject);
stream.Start();
Console.ReadKey();
stream.Stop();
}
internal NetworkVisualizer(Network network, LayoutProvider layout, NetworkColorizer colorizer, int width, int height)
: base(width, height, OpenTK.Graphics.GraphicsMode.Default, "NETGen Display")
{
Keyboard.KeyDown += new EventHandler<KeyboardKeyEventArgs>(Keyboard_KeyDown);
Mouse.ButtonDown += new EventHandler<MouseButtonEventArgs>(Mouse_ButtonDown);
Mouse.ButtonUp += new EventHandler<MouseButtonEventArgs>(Mouse_ButtonUp);
Mouse.Move += new EventHandler<MouseMoveEventArgs>(Mouse_Move);
Mouse.WheelChanged += new EventHandler<MouseWheelEventArgs>(Mouse_WheelChanged);
ComputeNodeSize = new Func<Vertex, float>(v => {
return 2f;
});
ComputeEdgeWidth = new Func<Edge, float>( e => {
return 0.05f;
});
_network = network;
_layout = layout;
_layout.Init(Width, Height, network);
if (colorizer == null)
_colorizer = new NetworkColorizer();
else
_colorizer = colorizer;
}
/// <summary>
/// Creates a new undirected edge between source and target. The edge is not registered with the source and
/// target vertices unless it is added to the graph!
/// </summary>
/// <param name="a">The A vertex</param>
/// <param name="b">The B vertex</param>
/// <param name="graph">The graph to which this edge belongs</param>
public Edge(Vertex a, Vertex b, Network graph)
{
ID = Guid.NewGuid();
A = a;
B = b;
Network = graph;
EdgeType = EdgeType.Undirected;
}
/// <summary>
/// Creates a new edge between source and target. The edge is not registered with the source and
/// target vertices unless it is added to the graph!
/// </summary>
/// <param name="a">The A vertex</param>
/// <param name="b">The B vertex</param>
/// <param name="graph">The graph to which this edge belongs</param>
/// <param name="type">Whether to create an undirected or a directed edge</param>
public Edge(Vertex a, Vertex b, Network graph, EdgeType type)
{
ID = Guid.NewGuid();
A = a;
B = b;
Network = graph;
EdgeType = type;
}
/// <summary>
/// Creates a new edge between source and target. The edge is not registered with the source and
/// target vertices unless it is added to the graph!
/// </summary>
/// <param name="a">The A vertex</param>
/// <param name="b">The B vertex</param>
/// <param name="graph">The graph to which this edge belongs</param>
/// <param name="type">Whether to create an undirected or a directed edge</param>
/// <param name="id">The ID that this vertex will be assigned</param>
public Edge(Vertex a, Vertex b, Network graph, EdgeType type, Guid id)
{
ID = id;
A = a;
B = b;
Network = graph;
EdgeType = type;
}
public override void Init(double width, double height, NETGen.Core.Network network)
{
base.Init(width, height, network);
Network.OnVertexAdded += new Network.VertexUpdateHandler(delegate(Vertex v) {
DoLayout();
});
}
public CEFPlayer(string cefFile, Network n, NetworkColorizer c = null)
{
filename = cefFile;
network = n;
colorizer = c;
if(cefFile == null || !System.IO.File.Exists(cefFile))
Logger.AddMessage(LogEntryType.Error, "Given cef-File does not exist.");
}
public SIRSpreading(Network n, NetworkColorizer colorizer = null)
{
_network = n;
_colorizer = colorizer;
_active = new List<Vertex>();
_infected = new List<Vertex>();
_infections = new Dictionary<Vertex, bool>();
}
/// <summary>
/// Assigns the random positions if they have not been assigned before ...
/// </summary>
/// <param name="width"></param>
/// <param name="height"></param>
/// <param name="n"></param>
public void DoLayout(double width, double height, Network n)
{
foreach (Vertex v in n.Vertices)
{
if (!_vertexPositions.ContainsKey(v))
_vertexPositions[v] = new Vector3(v.Network.NextRandomDouble() * width, v.Network.NextRandomDouble() * height, 0);
}
_laidout = true;
}
private static void ClassifyNeighbors(Network net, Vertex v, List<Vertex> intraNeighbors, List<Vertex> interNeighbors)
{
foreach (Vertex x in v.Neigbors)
{
if ((net as ClusterNetwork).GetClusterForNode(x) == (net as ClusterNetwork).GetClusterForNode(v))
intraNeighbors.Add(x);
else
interNeighbors.Add(x);
}
}
public void EpidemicSyncTest()
{
Network n = new Network();
Vertex a = n.CreateVertex();
Vertex b = n.CreateVertex();
n.CreateEdge(a, b);
Kuramoto sync = new Kuramoto(n, 2d);
sync.WriteTimeSeries(null);
sync.Stop();
}
private static void Draw(XGraphics g, Network n, PresentationSettings presentationSettings, ILayoutProvider layout)
{
lock (n)
{
if (g == null)
return;
g.SmoothingMode = PdfSharp.Drawing.XSmoothingMode.HighQuality;
g.Clear(Color.White);
foreach (Edge e in n.Edges)
DrawEdge(g, e, presentationSettings, layout);
foreach (Vertex v in n.Vertices)
DrawVertex(g, v, presentationSettings, layout);
}
}
private static void Draw(XGraphics g, Network n, LayoutProvider layout, NetworkColorizer colorizer)
{
lock (n)
{
if (g == null)
return;
g.SmoothingMode = PdfSharp.Drawing.XSmoothingMode.HighQuality;
g.Clear(Color.White);
foreach (Edge e in n.Edges)
DrawEdge(g, e, layout, colorizer);
foreach (Vertex v in n.Vertices)
DrawVertex(g, v, layout, colorizer);
}
}
/// <summary>
/// Creates a new instance of a Networkvisualizer which renders the specified network in real-time
/// </summary>
/// <param name='n'>
/// N.
/// </param>
/// <param name='layout'>
/// Layout.
/// </param>
public static void Start(Network network, ILayoutProvider layout, NetworkColorizer colorizer = null, int width=800, int height=600)
{
// The actual rendering needs to be done in a separate thread placed in the single thread appartment state
_mainThread = new Thread(new ThreadStart(new Action(delegate() {
NetworkVisualizer p = new NetworkVisualizer(network, layout, colorizer, width, height);
p.Run(80f);
})));
_mainThread.SetApartmentState(ApartmentState.STA);
_mainThread.Name = "STA Thread for NETGen Visualizer";
// Fire up the thread
_mainThread.Start();
}
public static void CreatePDF(string path, Network n, LayoutProvider layout, NetworkColorizer colorizer)
{
PdfSharp.Pdf.PdfDocument doc = new PdfDocument();
doc.Info.Title = "Network";
doc.Info.Subject = "Created by NETGen";
PdfPage page = doc.AddPage();
page.Size = PageSize.A4;
page.Orientation = PageOrientation.Landscape;
// Draw the network to the xgraphics object
Draw(XGraphics.FromPdfPage(page), n, layout, colorizer);
// Save the s_document...
doc.Save(path);
}
internal NetworkVisualizer(Network network, ILayoutProvider layout, NetworkColorizer colorizer, int width, int height)
: base(width, height, GraphicsMode.Default, "NETGen Display")
{
Keyboard.KeyDown += new EventHandler<KeyboardKeyEventArgs>(Keyboard_KeyDown);
Mouse.ButtonDown += new EventHandler<MouseButtonEventArgs>(Mouse_ButtonDown);
Mouse.ButtonUp += new EventHandler<MouseButtonEventArgs>(Mouse_ButtonUp);
Mouse.Move += new EventHandler<MouseMoveEventArgs>(Mouse_Move);
Mouse.WheelChanged += new EventHandler<MouseWheelEventArgs>(Mouse_WheelChanged);
if (colorizer == null)
_colorizer = new NetworkColorizer();
else
_colorizer = colorizer;
_network = network;
_layout = layout;
}
public static void CreatePDF(string path, Network n, PresentationSettings presentationSettings, ILayoutProvider layout)
{
if (presentationSettings ==null)
presentationSettings = new Visualization.PresentationSettings(2000d, 1000d, 0d);
PdfSharp.Pdf.PdfDocument doc = new PdfDocument();
doc.Info.Title = "Network";
doc.Info.Subject = "Created by NETGen, the cross-platform network simulation framework";
PdfPage page = doc.AddPage();
page.Size = PageSize.A4;
page.Orientation = PageOrientation.Landscape;
PresentationSettings newSettings = presentationSettings.Clone();
newSettings.WorldWidth = (int) page.Width.Point;
newSettings.WorldHeight = (int) page.Height.Point;
newSettings.VertexSize *= (int) (newSettings.WorldWidth/presentationSettings.WorldWidth);
// Draw the network to the xgraphics object
Draw(XGraphics.FromPdfPage(page), n, presentationSettings, layout);
// Save the s_document...
doc.Save(path);
}
public static void SaveToEdgeFile(Network n, string path)
{
System.IO.StreamWriter sw = System.IO.File.CreateText(path);
foreach(Edge e in n.Edges)
sw.WriteLine(e.Source.Label.Replace(" ", "_") + " " + e.Target.Label.Replace(" ", "_"));
sw.Close();
}
public static void TryAddTypeRelation(Network n, Type v, Type w)
{
if(v == null || w == null || v.FullName == null || w.FullName == null)
return;
Vertex v_Vert = n.SearchVertex(v.FullName);
Vertex w_Vert = n.SearchVertex(w.FullName);
if(v_Vert != null && w_Vert != null)
n.CreateEdge(v_Vert, w_Vert, EdgeType.DirectedAB);
}
/// <summary>
/// The entry point of the program, where the program control starts and ends.
/// </summary>
/// <param name='args'>
/// The command-line arguments.
/// </param>
public static void Main(string[] args)
{
int limit = 0;
// Print usage information
if (args.Length<3)
{
Console.WriteLine("Usage: MonoParser [class_number] [scan_path] [output_file]");
Console.WriteLine("\t path: \tPath of the directory to scan for assemblies");
Console.WriteLine("\t output_file: \tPath of the graphML file to produce for the resulting network");
return;
}
// Some error handling
if (!System.IO.Directory.Exists(args[1]))
{
Console.WriteLine("Error: The given scan_path '{0}' is not a valid directory", args[1]);
return;
}
limit = Int32.Parse(args[0]);
try
{
System.IO.File.CreateText(args[2]);
}
catch(System.IO.IOException)
{
Console.WriteLine("Error: Cannot write to the specified output_file");
return;
}
// The network
Network n = new Network();
// Scan the assemblies
List<Assembly> assemblies = new List<Assembly>();
foreach(string s in System.IO.Directory.GetFiles(args[1], "*.dll", System.IO.SearchOption.AllDirectories))
{
Assembly a = Assembly.LoadFile(s);
assemblies.Add(a);
}
Console.WriteLine("Found {0} assemblies", assemblies.Count);
// Scan for classes
foreach(Assembly a in assemblies)
foreach(Type t in a.GetTypes())
if(t.FullName!="System.Object")
if((t.IsClass || t.IsInterface || t.IsAbstract) && n.VertexCount < limit)
n.CreateVertex(t.FullName);
Console.WriteLine("Found {0} classes", n.VertexCount);
// Scan for class relations
foreach(Assembly a in assemblies)
foreach(Type t in a.GetTypes())
if(t.IsClass || t.IsInterface || t.IsAbstract)
{
Type baseType = t.BaseType;
TryAddTypeRelation(n, baseType, t);
foreach(Type i in t.GetInterfaces())
TryAddTypeRelation(n, i, t);
}
/*
foreach(PropertyInfo p in t.GetProperties())
TryAddTypeRelation(n, t, p.PropertyType);
foreach(FieldInfo f in t.GetFields())
TryAddTypeRelation(n, t, f.FieldType);
foreach(MethodInfo m in t.GetMethods())
{
ParameterInfo[] info = m.GetParameters();
MethodBody mb = m.GetMethodBody();
mb.
if(mb != null)
foreach(LocalVariableInfo i in m.GetMethodBody().LocalVariables)
TryAddTypeRelation(n, t, i.LocalType);
}
*/
//}
Console.WriteLine("Found {0} types and {1} connections", n.VertexCount, n.EdgeCount);
// n.ReduceToLargestConnectedComponent();
int maxDegree = int.MinValue;
Vertex maxVertex = null;
foreach(Vertex v in n.Vertices)
{
if(v.Degree > maxDegree)
{
maxDegree = v.Degree;
maxVertex = v;
}
}
Console.WriteLine(maxVertex.Label);
Console.WriteLine("{0} vertices and {1} connections", n.VertexCount, n.EdgeCount);
Network.SaveToGraphML(args[2], n);
//NetworkVisualizer.Start(n, new FruchtermanReingoldLayout(10));
}
/// <summary>
/// Loads a network from a textfile in which each edge is given by a line of whitespace- or comma-seperated strings representing two nodes
/// </summary>
/// <param name="path">
/// The path of the textfile
/// </param>
/// <returns>
/// The network
/// </returns>
public static Network LoadFromEdgeFile(string path)
{
// First read all lines
string[] lines = System.IO.File.ReadAllLines(path);
Network net = new Network();
// Then process them in parallel
System.Threading.Tasks.Parallel.ForEach(lines, s =>
{
string[] vertices = s.Split(' ', '\t', ',');
if(vertices.Length==2)
{
Vertex v1 = net.SearchVertex(vertices[0]);
Vertex v2 = net.SearchVertex(vertices[1]);
// this needs to be atomic
lock(net)
{
if(v1 == null)
v1 = net.CreateVertex(vertices[0]);
if (v2 == null)
v2 = net.CreateVertex(vertices[1]);
}
net.CreateEdge(v1, v2, EdgeType.Undirected);
}
});
return net;
}
void HandleFileChooserNetworkFilehandleFileSet(object sender, EventArgs e)
{
if (this.fileChooserNetworkFile.Filename.EndsWith("cxf"))
n = Network.LoadFromCXF(this.fileChooserNetworkFile.Filename);
else if (this.fileChooserNetworkFile.Filename.EndsWith("graphml"))
n = Network.LoadFromGraphML(this.fileChooserNetworkFile.Filename);
else
n = Network.LoadFromEdgeFile(this.fileChooserNetworkFile.Filename);
NetworkVisualizer.Start(n, new NETGen.Layouts.RandomLayout.RandomLayout(), colorizer, 800, 600);
}
public override void Init(double width, double height, Network network)
{
base.Init(width, height, network);
foreach(Vertex v in network.Vertices)
{
_vertexPositions[v] = new Vector3(network.NextRandomDouble() * width, network.NextRandomDouble() * height, 1d);
_newVertices.Add(v);
}
// Add vertex to _newVertices whenever one is added to the network
network.OnVertexAdded+=new Network.VertexUpdateHandler( delegate(Vertex v) {
_vertexPositions[v] = new Vector3(network.NextRandomDouble() * width, network.NextRandomDouble() * height, 1d);
_newVertices.Add(v);
});
}
public void DoLayout(double width, double height, Network n)
{
double _area = width * height;
double _k = Math.Sqrt(_area / (double)n.Vertices.Count());
_k *= 0.75d;
// The displacement calculated for each vertex in each step
ConcurrentDictionary<Vertex, Vector3> disp = new ConcurrentDictionary<Vertex, Vector3>(System.Environment.ProcessorCount, (int) n.VertexCount);
_vertexPositions = new ConcurrentDictionary<Vertex, Vector3>(System.Environment.ProcessorCount, (int) n.VertexCount);
double t = width/10;
double tempstep = t / (double) _iterations;
Parallel.ForEach(n.Vertices.ToArray(), v=>
{
_vertexPositions[v] = new Vector3(n.NextRandomDouble() * width, n.NextRandomDouble() * height, 1d);
disp[v] = new Vector3(0d, 0d, 1d);
});
_laidout = true;
System.Threading.ThreadPool.QueueUserWorkItem(new System.Threading.WaitCallback(delegate(object o)
{
for (int i=0; i<_iterations; i++)
{
// parallely Calculate repulsive forces for every pair of vertices
Parallel.ForEach(n.Vertices.ToArray(), v =>
{
disp[v] = new Vector3(0d, 0d, 1d);
// computation of repulsive forces
foreach(Vertex u in n.Vertices.ToArray())
{
if (v != u)
{
Vector3 delta = _vertexPositions[v] - _vertexPositions[u];
disp[v] = disp[v] + (delta / Vector3.Length(delta)) * repulsion(Vector3.Length(delta), _k);
}
}
});
// Parallely calculate attractive forces for all pairs of connected nodes
Parallel.ForEach(n.Edges.ToArray(), e =>
{
Vertex v = e.Source;
Vertex w = e.Target;
Vector3 delta = _vertexPositions[v] - _vertexPositions[w];
disp[v] = disp[v] - (delta / Vector3.Length(delta)) * attraction(Vector3.Length(delta), _k);
disp[w] = disp[w] + (delta / Vector3.Length(delta)) * attraction(Vector3.Length(delta), _k);
});
// Limit to frame and include temperature cooling that reduces displacement step by step
Parallel.ForEach(n.Vertices.ToArray(), v =>
{
Vector3 vPos = _vertexPositions[v] + (disp[v] / Vector3.Length(disp[v])) * Math.Min(Vector3.Length(disp[v]), t);
vPos.X = Math.Min(width-10, Math.Max(10, vPos.X));
vPos.Y = Math.Min(height-10, Math.Max(10, vPos.Y));
_vertexPositions[v] = vPos;
});
t-= tempstep;
}
}));
}
public Kuramoto(Network n, double K, double UserDefinedcouplingProb, NetworkColorizer colorizer = null, Func<Vertex, Vertex[]> couplingSelector = null)
: base(0d, new DenseVector((int) n.VertexCount))
{
_network = n;
_colorizer = colorizer;
// Coupling Probability is taken from User
CouplingProbability = UserDefinedcouplingProb;
CouplingStrengths = new Dictionary<Tuple<Vertex, Vertex>, double>();
NaturalFrequencies = new ConcurrentDictionary<Vertex, double>();
foreach (Edge e in _network.Edges)
{
Tuple<Vertex,Vertex> t1 = new Tuple<Vertex, Vertex>(e.Source, e.Target);
Tuple<Vertex,Vertex> t2 = new Tuple<Vertex, Vertex>(e.Target, e.Source);
if(e.EdgeType == EdgeType.Undirected || e.EdgeType == EdgeType.DirectedAB)
CouplingStrengths[t1] = K;
if(e.EdgeType == EdgeType.Undirected || e.EdgeType == EdgeType.DirectedBA)
CouplingStrengths[t2] = K;
// My code modifications
// Console.WriteLine(e.Source.Label+"......... "+e.Target.Label);
}
_mapping = new Dictionary<Vertex, int>();
int i= 0;
foreach(Vertex v in _network.Vertices)
{
NaturalFrequencies[v] = 0.1d;
_mapping[v] = i++;
}
// if no neighbor selector is given, just couple to all nearest neighbors
if(couplingSelector==null)
CouplingSelector = new Func<Vertex, Vertex[]>( v => {
return v.Neigbors.ToArray();
});
else
CouplingSelector = couplingSelector;
// Initialize phases, colors and average degree
foreach (Vertex v in _network.Vertices)
{
CurrentValues[_mapping[v]] = _network.NextRandomDouble() * Math.PI * 2d;
if(_colorizer != null)
_colorizer[v] = ColorFromPhase(CurrentValues[_mapping[v]]);
_avgDeg += v.Degree;
}
_avgDeg /= (double) _network.VertexCount;
Logger.AddMessage(LogEntryType.Info, string.Format("Sychchronization module initialized. Initial global order = {0:0.000}", GetOrder(_network.Vertices.ToArray())));
TimeDelta = Math.PI / 100d;
OnStep+= new StepHandler(recolor);
}
static void Main(string[] args)
{
string configFile, dir = Path.GetDirectoryName(Assembly.GetEntryAssembly().Location), netFile, NetworkFile, resFile,destResultFile;
string[] path = dir.Split(new string[] { "Launch" }, StringSplitOptions.None);
string srcResultFile = path[0] +"Launch" + Path.DirectorySeparatorChar + "Launch" + Path.DirectorySeparatorChar + "bin" + Path.DirectorySeparatorChar + "Debug" + Path.DirectorySeparatorChar + "result.dat";
configFile = path[0] + Path.DirectorySeparatorChar + "Launch" + Path.DirectorySeparatorChar + "config.param.txt";
Console.WriteLine("Starting the program to generate the network based on Barbasi Albert Model..");
GlobValues glob = new GlobValues();
try
{
// Read parameters from param.config file
read_parameters(configFile, glob);
}
catch (Exception e)
{
Console.WriteLine(e.Message);
return;
}
for (int i = 1; i<= glob.numberOfGraphs; i++)
{
for (double j = glob.minPower; j <= (glob.maxPower + 0.1); j=j+0.1)
{
// Creating network file
netFile = i+ "_BarbasiNetwork_N"+glob.nodes+ "_powerLaw"+j+"_K"+glob.couplingStrength+".edges";
NetworkFile = path[0] + "Launch" + Path.DirectorySeparatorChar + "output" + Path.DirectorySeparatorChar+netFile ;
resFile = i + "_res_N" + glob.nodes + "_powerLaw" + j + "_K" + glob.couplingStrength+".dat";
destResultFile = path[0] + "Launch" + Path.DirectorySeparatorChar + "output" + Path.DirectorySeparatorChar + resFile;
try
{
// upload the network to run the Kuramoto Model
pop = Network.LoadFromEdgeFile(NetworkFile);
// Run the Kuramoto model here and store the results in the output directory
NetworkColorizer colorizer = new NetworkColorizer();
// Distribution of natural frequencies
double mean_frequency = 1d;
Normal normal = new Normal(mean_frequency, mean_frequency / 5d);
sync = new Kuramoto(pop,
glob.couplingStrength,
glob.couplingProb,
colorizer,
new Func<Vertex, Vertex[]>(v => { return new Vertex[] { v.RandomNeighbor }; })
);
foreach (Vertex v in pop.Vertices)
sync.NaturalFrequencies[v] = normal.Sample();
// foreach (int g in network.ClusterIDs)
// pacemaker_mode[g] = false;
sync.OnStep += new Kuramoto.StepHandler(recordOrder);
Logger.AddMessage(LogEntryType.AppMsg, "Press enter to start synchronization experiment...");
Console.ReadLine();
// Run the simulation
sync.Run();
// Write the time series to the resultfile
if (srcResultFile != null)
sync.WriteTimeSeries(srcResultFile);
// Moving results of kuramoto model into output directory
System.IO.File.Move(srcResultFile, destResultFile);
}
catch (Exception e)
{
Console.WriteLine("Error: " + e);
}
}
}
}
/// <summary>
/// Saves a network to a graphML file
/// </summary>
/// <param name='path'>
/// The path of the file
/// </param>
/// <param name='n'>
/// The network to save
/// </param>
public static void SaveToGraphML(string path, Network n)
{
if (path == null || n == null)
return;
Dictionary<Guid, long> _GuidMapping = new Dictionary<Guid, long>();
XmlTextWriter writer = new XmlTextWriter(path, Encoding.UTF8);
writer.WriteStartDocument();
writer.WriteStartElement("graphml", "http://graphml.graphdrawing.org/xmlns");
writer.WriteStartElement("key");
writer.WriteStartAttribute("id");
writer.WriteValue("value0");
writer.WriteEndAttribute();
writer.WriteStartAttribute("for");
writer.WriteValue("node");
writer.WriteEndAttribute();
writer.WriteStartAttribute("attr.name");
writer.WriteValue("strength");
writer.WriteEndAttribute();
writer.WriteStartAttribute("attr.type");
writer.WriteValue("double");
writer.WriteEndAttribute();
writer.WriteEndElement();
writer.WriteStartElement("graph");
writer.WriteStartAttribute("id");
writer.WriteValue("g");
writer.WriteEndAttribute();
writer.WriteStartAttribute("edgedefault");
writer.WriteValue("undirected");
writer.WriteEndAttribute();
long counter = 0;
foreach (Vertex v in n.Vertices)
{
writer.WriteStartElement("node");
writer.WriteStartAttribute("id");
_GuidMapping[v.ID] = counter++;
writer.WriteValue("n" + _GuidMapping[v.ID].ToString());
writer.WriteEndAttribute();
writer.WriteStartElement("data");
writer.WriteStartAttribute("key");
writer.WriteValue("value0");
writer.WriteEndAttribute();
if (v.Tag != null)
writer.WriteValue(v.Tag);
else
writer.WriteValue(0d);
writer.WriteEndElement();
writer.WriteEndElement();
}
foreach (Edge e in n.Edges)
{
writer.WriteStartElement("edge");
if (e.EdgeType == EdgeType.DirectedAB)
{
writer.WriteStartAttribute("source");
writer.WriteValue("n" + _GuidMapping[e.Source.ID].ToString());
writer.WriteEndAttribute();
writer.WriteStartAttribute("target");
writer.WriteValue("n" + _GuidMapping[e.Target.ID].ToString());
writer.WriteEndAttribute();
writer.WriteStartAttribute("directed");
writer.WriteValue("true");
writer.WriteEndAttribute();
}
else if (e.EdgeType == EdgeType.DirectedBA)
{
writer.WriteStartAttribute("source");
writer.WriteValue("n" + _GuidMapping[e.Target.ID].ToString());
writer.WriteEndAttribute();
writer.WriteStartAttribute("target");
writer.WriteValue("n" + _GuidMapping[e.Source.ID].ToString());
writer.WriteEndAttribute();
writer.WriteStartAttribute("directed");
writer.WriteValue("true");
writer.WriteEndAttribute();
}
else
{
writer.WriteStartAttribute("source");
writer.WriteValue("n" + _GuidMapping[e.Source.ID].ToString());
writer.WriteEndAttribute();
writer.WriteStartAttribute("target");
writer.WriteValue("n" + _GuidMapping[e.Target.ID].ToString());
writer.WriteEndAttribute();
}
writer.WriteEndElement();
}
writer.WriteEndElement();
writer.WriteEndElement();
writer.WriteEndDocument();
writer.Close();
}
public static void SaveToEdgeFile(Network n, string path)
{
System.IO.File.CreateText(path);
foreach(Edge e in n.Edges)
System.IO.File.AppendAllText(path, e.Source.Label + " " + e.Target.Label + "\n");
}
/// <summary>
/// Loads a network from a GraphML file.
/// </summary>
/// <returns>
/// A network
/// </returns>
/// <param name='path'>
/// The path of the graphml file
/// </param>
public static Network LoadFromGraphML(string path)
{
if (path == null)
return null;
Network n = new Network();
XmlTextReader reader = new XmlTextReader(path);
Dictionary<string, Vertex> _idMapping = new Dictionary<string,Vertex>();
while (reader.Read())
{
XmlNodeType nt = reader.NodeType;
if (nt == XmlNodeType.Element)
{
if (reader.LocalName == "node")
{
string id = reader.GetAttribute("id");
if (!_idMapping.ContainsKey(id))
{
_idMapping[id] = new Vertex(n);
n.AddVertex(_idMapping[id]);
}
}
else if (reader.LocalName == "edge")
{
string sourceID = reader.GetAttribute("source");
string targetID = reader.GetAttribute("target");
Edge newEdge = new Edge(_idMapping[sourceID], _idMapping[targetID], n, EdgeType.Undirected);
n.AddEdge(newEdge);
}
}
}
reader.Close();
return n;
}
/// <summary>
/// Loads a network from a textfile in which each edge is given by a line of whitespace- or comma-seperated strings representing two nodes
/// </summary>
/// <param name="path">
/// The path of the textfile
/// </param>
/// <returns>
/// The network
/// </returns>
public static Network LoadFromEdgeFile(string path)
{
// First read all lines
string[] lines = System.IO.File.ReadAllLines(path);
Network net = new Network();
// Then process them in parallel
System.Threading.Tasks.Parallel.ForEach(lines, s =>
{
string[] vertices = s.Split(' ', '\t');
if(vertices.Length>=2)
{
Vertex v1 = net.SearchVertex(vertices[0]);
Vertex v2 = net.SearchVertex(vertices[1]);
// this needs to be atomic
lock(net)
{
if(v1 == null)
v1 = net.CreateVertex(vertices[0]);
if (v2 == null)
v2 = net.CreateVertex(vertices[1]);
}
Edge e = net.CreateEdge(v1, v2, EdgeType.Undirected);
if (vertices.Length==3) {
try {
e.Weight = float.Parse(vertices[2]);
}
catch
{
Logger.AddMessage(LogEntryType.Warning, "Could not parse edge weight.");
}
}
}
});
return net;
}
public static Network LoadFromCXF(string filename)
{
string[] cxf = System.IO.File.ReadAllLines(filename);
Network n = new Network();
foreach(string s in cxf)
{
string type = s.Substring(0, s.IndexOf(":"));
if(type=="node")
{
string label = ExtractNodeLabel(s);
n.CreateVertex(label);
// if(colorizer!= null && extractColor(s)!=Color.Empty)
// colorizer[v] = extractColor(s);
}
else if (type=="edge")
{
string sourceLabel = ExtractSourceLabel (s);
string targetLabel = ExtractTargetLabel (s);
n.CreateEdge(n.SearchVertex(sourceLabel), n.SearchVertex(targetLabel));
}
}
return n;
}
