AddVertices
(
IGraph oGraph,
Int32 iVerticesToAdd
)
{
Debug.Assert(oGraph != null);
Debug.Assert(iVerticesToAdd >= 0);
IVertex[] aoVertices = new IVertex[iVerticesToAdd];
IVertexCollection oVertexCollection = oGraph.Vertices;
// Add the vertices.
for (Int32 i = 0; i < iVerticesToAdd; i++)
{
IVertex oVertex = aoVertices[i] = new Vertex();
oVertex.Name = oVertex.ID.ToString();
oVertexCollection.Add(oVertex);
}
return(aoVertices);
}
TestGetVertexIDPair6()
{
// Undirected graph, useDirectedness = false.
IGraph oUndirectedGraph = new Graph(GraphDirectedness.Undirected);
IVertexCollection oUndirectedVertices = oUndirectedGraph.Vertices;
IVertex oUndirectedVertexA = oUndirectedVertices.Add();
IVertex oUndirectedVertexB = oUndirectedVertices.Add();
IVertex oUndirectedVertexC = oUndirectedVertices.Add();
IVertex oUndirectedVertexD = oUndirectedVertices.Add();
IEdgeCollection oEdges = oUndirectedGraph.Edges;
IEdge oEdge1 = oEdges.Add(oUndirectedVertexA, oUndirectedVertexB,
false);
IEdge oEdge2 = oEdges.Add(oUndirectedVertexA, oUndirectedVertexB,
false);
IEdge oEdge3 = oEdges.Add(oUndirectedVertexB, oUndirectedVertexA,
false);
IEdge oEdge4 = oEdges.Add(oUndirectedVertexA, oUndirectedVertexC,
false);
Int64 i64VertexIDPair1 = EdgeUtil.GetVertexIDPair(oEdge1, false);
Int64 i64VertexIDPair2 = EdgeUtil.GetVertexIDPair(oEdge2, false);
Int64 i64VertexIDPair3 = EdgeUtil.GetVertexIDPair(oEdge3, false);
Int64 i64VertexIDPair4 = EdgeUtil.GetVertexIDPair(oEdge4, false);
// Make sure that the left-shift worked.
Assert.IsTrue(i64VertexIDPair1 > Int32.MaxValue);
Assert.IsTrue(i64VertexIDPair2 > Int32.MaxValue);
Assert.IsTrue(i64VertexIDPair3 > Int32.MaxValue);
Assert.IsTrue(i64VertexIDPair4 > Int32.MaxValue);
Assert.AreEqual(i64VertexIDPair1, i64VertexIDPair2);
Assert.AreEqual(i64VertexIDPair1, i64VertexIDPair3);
Assert.AreNotEqual(i64VertexIDPair1, i64VertexIDPair4);
Assert.AreEqual(i64VertexIDPair2, i64VertexIDPair3);
Assert.AreNotEqual(i64VertexIDPair2, i64VertexIDPair4);
Assert.AreNotEqual(i64VertexIDPair3, i64VertexIDPair4);
}
CreateGraph
(
IVertex [] aoVertices,
List <PajekEdgeData> oUndirectedEdgeData,
List <PajekEdgeData> oDirectedEdgeData
)
{
Debug.Assert(oUndirectedEdgeData != null);
Debug.Assert(oDirectedEdgeData != null);
GraphDirectedness eDirectedness = GraphDirectedness.Undirected;
Int32 iVertices = 0;
Int32 iUndirectedEdges = oUndirectedEdgeData.Count;
Int32 iDirectedEdges = oDirectedEdgeData.Count;
if (iUndirectedEdges > 0 && iDirectedEdges > 0)
{
eDirectedness = GraphDirectedness.Mixed;
}
else if (iDirectedEdges > 0)
{
eDirectedness = GraphDirectedness.Directed;
}
IGraph oGraph = new Graph(eDirectedness);
IVertexCollection oVertices = oGraph.Vertices;
IEdgeCollection oEdges = oGraph.Edges;
if (aoVertices != null)
{
// Populate the vertex collection.
foreach (IVertex oVertex in aoVertices)
{
oVertices.Add(oVertex);
}
iVertices = aoVertices.Length;
}
// Populate the edges collection.
foreach (PajekEdgeData oEdgeData in oUndirectedEdgeData)
{
AddEdgeToGraph(oEdgeData, oEdges, aoVertices, false);
}
foreach (PajekEdgeData oEdgeData in oDirectedEdgeData)
{
AddEdgeToGraph(oEdgeData, oEdges, aoVertices, true);
}
return(oGraph);
}
TestGetVertexIDPair()
{
// Directed graph.
IGraph oDirectedGraph = new Graph(GraphDirectedness.Directed);
IVertexCollection oDirectedVertices = oDirectedGraph.Vertices;
IVertex oDirectedVertexA = oDirectedVertices.Add();
IVertex oDirectedVertexB = oDirectedVertices.Add();
IVertex oDirectedVertexC = oDirectedVertices.Add();
IVertex oDirectedVertexD = oDirectedVertices.Add();
IEdgeCollection oEdges = oDirectedGraph.Edges;
IEdge oEdge1 = oEdges.Add(oDirectedVertexA, oDirectedVertexB, true);
IEdge oEdge2 = oEdges.Add(oDirectedVertexA, oDirectedVertexB, true);
IEdge oEdge3 = oEdges.Add(oDirectedVertexB, oDirectedVertexA, true);
IEdge oEdge4 = oEdges.Add(oDirectedVertexA, oDirectedVertexC, true);
Int64 i64VertexIDPair1 = EdgeUtil.GetVertexIDPair(oEdge1);
Int64 i64VertexIDPair2 = EdgeUtil.GetVertexIDPair(oEdge2);
Int64 i64VertexIDPair3 = EdgeUtil.GetVertexIDPair(oEdge3);
Int64 i64VertexIDPair4 = EdgeUtil.GetVertexIDPair(oEdge4);
// Make sure that the left-shift worked.
Assert.IsTrue(i64VertexIDPair1 > Int32.MaxValue);
Assert.IsTrue(i64VertexIDPair2 > Int32.MaxValue);
Assert.IsTrue(i64VertexIDPair3 > Int32.MaxValue);
Assert.IsTrue(i64VertexIDPair4 > Int32.MaxValue);
Assert.AreEqual(i64VertexIDPair1, i64VertexIDPair2);
Assert.AreNotEqual(i64VertexIDPair1, i64VertexIDPair3);
Assert.AreNotEqual(i64VertexIDPair1, i64VertexIDPair4);
Assert.AreNotEqual(i64VertexIDPair2, i64VertexIDPair3);
Assert.AreNotEqual(i64VertexIDPair2, i64VertexIDPair4);
Assert.AreNotEqual(i64VertexIDPair3, i64VertexIDPair4);
}
SetUp()
{
m_oDirectedGraph = new Graph(GraphDirectedness.Directed);
IVertexCollection oDirectedVertices = m_oDirectedGraph.Vertices;
m_oDirectedVertexA = oDirectedVertices.Add();
m_oDirectedVertexA.Name = "A";
m_oDirectedVertexB = oDirectedVertices.Add();
m_oDirectedVertexB.Name = "B";
m_oDirectedVertexC = oDirectedVertices.Add();
m_oDirectedVertexC.Name = "C";
m_oDirectedVertexD = oDirectedVertices.Add();
m_oDirectedVertexD.Name = "D";
m_oDirectedVertexWithNullName = oDirectedVertices.Add();
m_oDirectedVertexWithNullName.Name = null;
m_oUndirectedGraph = new Graph(GraphDirectedness.Undirected);
IVertexCollection oUndirectedVertices = m_oUndirectedGraph.Vertices;
m_oUndirectedVertexA = oUndirectedVertices.Add();
m_oUndirectedVertexA.Name = "A";
m_oUndirectedVertexB = oUndirectedVertices.Add();
m_oUndirectedVertexB.Name = "B";
m_oUndirectedVertexC = oUndirectedVertices.Add();
m_oUndirectedVertexC.Name = "C";
m_oUndirectedVertexD = oUndirectedVertices.Add();
m_oUndirectedVertexD.Name = "D";
m_oUndirectedVertexWithNullName = oUndirectedVertices.Add();
m_oUndirectedVertexWithNullName.Name = null;
}
ParseVertices
(
IGraph oGraph,
XmlNode oGraphXmlNode,
XmlNamespaceManager oXmlNamespaceManager,
Dictionary <String, GraphMLAttribute> oGraphMLAttributeDictionary
)
{
Debug.Assert(oGraph != null);
Debug.Assert(oGraphXmlNode != null);
Debug.Assert(oXmlNamespaceManager != null);
Debug.Assert(oGraphMLAttributeDictionary != null);
AssertValid();
IVertexCollection oVertices = oGraph.Vertices;
// The key is the id attribute of the "node" XML node, and the value is
// the corresponding IVertex.
Dictionary <String, IVertex> oVertexDictionary =
new Dictionary <String, IVertex>();
foreach (XmlNode oNodeXmlNode in oGraphXmlNode.SelectNodes(
GraphMLPrefix + ":node", oXmlNamespaceManager))
{
String sID = XmlUtil2.SelectRequiredSingleNodeAsString(
oNodeXmlNode, "@id", null);
IVertex oVertex = oVertices.Add();
oVertex.Name = sID;
try
{
oVertexDictionary.Add(sID, oVertex);
}
catch (ArgumentException)
{
throw new XmlException(
"The id \"" + sID + "\" exists for two \"node\" XML nodes."
+ " Node id values must be unique."
);
}
ParseGraphMLAttributeValues(oNodeXmlNode, oXmlNamespaceManager,
oVertex, true, oGraphMLAttributeDictionary);
}
return(oVertexDictionary);
}
AddLoadedVertex
(
String sVertexName,
IVertexCollection oVertices,
Dictionary <Int32, IVertex> oVertexDictionary
)
{
Debug.Assert(!String.IsNullOrEmpty(sVertexName));
Debug.Assert(oVertices != null);
Debug.Assert(oVertexDictionary != null);
AssertValid();
IVertex oVertex = new Vertex();
oVertex.Name = sVertexName;
oVertices.Add(oVertex);
oVertexDictionary.Add(oVertices.Count - 1, oVertex);
}
private void add_nodes(DataTable node_table, IVertexCollection oVertices)
{
DataRowCollection node_rows = node_table.Rows;
DataColumnCollection node_col = node_table.Columns;
foreach (DataRow row in node_rows)
{
//Notice: "nodename" and "nodeid" should be edited
IVertex oVertexA = oVertices.Add();
oVertexA.Name = row["NodeName"].ToString();
oVertexA.Tag = row["ID"].ToString();
int i = 0;
foreach(DataColumn col in node_col){
oVertexA.SetValue(col.ColumnName, row[i++]);
}
}
}
CreateVertex
(
String sVertexName,
IVertexCollection oVertices,
Dictionary <String, IVertex> oVertexNameDictionary
)
{
Debug.Assert(!String.IsNullOrEmpty(sVertexName));
Debug.Assert(oVertices != null);
Debug.Assert(oVertexNameDictionary != null);
IVertex oVertex = oVertices.Add();
oVertex.Name = sVertexName;
oVertexNameDictionary.Add(sVertexName, oVertex);
return(oVertex);
}
VertexNameToVertex
(
String sVertexName,
IVertexCollection oVertices,
Dictionary <String, IVertex> oDictionary
)
{
Debug.Assert(!String.IsNullOrEmpty(sVertexName));
Debug.Assert(oVertices != null);
Debug.Assert(oDictionary != null);
AssertValid();
IVertex oVertex;
if (!oDictionary.TryGetValue(sVertexName, out oVertex))
{
oVertex = oVertices.Add();
oVertex.Name = sVertexName;
oDictionary.Add(sVertexName, oVertex);
}
return(oVertex);
}
AddLoadedVertex
(
String sVertexName,
IVertexCollection oVertices,
Dictionary<Int32, IVertex> oVertexDictionary
)
{
Debug.Assert( !String.IsNullOrEmpty(sVertexName) );
Debug.Assert(oVertices != null);
Debug.Assert(oVertexDictionary != null);
AssertValid();
IVertex oVertex = new Vertex();
oVertex.Name = sVertexName;
oVertices.Add(oVertex);
oVertexDictionary.Add(oVertices.Count - 1, oVertex);
}
Clone
(
Boolean copyMetadataValues,
Boolean copyTag
)
{
AssertValid();
const String MethodName = "Clone";
IGraph oNewGraph = new Graph(m_eDirectedness);
// Copy the base-class fields to the new edge.
this.CopyTo(oNewGraph, copyMetadataValues, copyTag);
// The vertices need to be copied to the new graph. Loop through the
// vertices in this original graph.
IVertexCollection oNewVertices = oNewGraph.Vertices;
foreach (IVertex oOriginalVertex in m_oVertexCollection)
{
IVertex oNewVertex = oOriginalVertex.Clone(
copyMetadataValues, copyTag);
// To make it easier to copy the edges in this original graph,
// temporarily store the ID of the new vertex in the Tag of the
// original vertex. Save the Tag so it can be restored later.
oOriginalVertex.Tag =
new VertexMapper(oOriginalVertex.Tag, oNewVertex);
oNewVertices.Add(oNewVertex);
}
// The edges need to be copied to the new graph. Loop through the
// edges in this original graph.
IEdgeCollection oNewEdges = oNewGraph.Edges;
foreach (IEdge oOriginalEdge in m_oEdgeCollection)
{
// Get the original edge's vertices.
IVertex oOriginalVertex1, oOriginalVertex2;
EdgeUtil.EdgeToVertices(oOriginalEdge, this.ClassName, MethodName,
out oOriginalVertex1, out oOriginalVertex2);
// Retrieve the VertexMapper objects that were temporarily stored
// in the vertices' Tags.
Debug.Assert(oOriginalVertex1.Tag is VertexMapper);
Debug.Assert(oOriginalVertex2.Tag is VertexMapper);
VertexMapper oVertexMapper1 = (VertexMapper)oOriginalVertex1.Tag;
VertexMapper oVertexMapper2 = (VertexMapper)oOriginalVertex2.Tag;
// Get the new vertices that correspond to the original edge's
// vertices.
IVertex oNewVertex1 = oVertexMapper1.NewVertex;
IVertex oNewVertex2 = oVertexMapper2.NewVertex;
// Copy the original edge, connecting the new vertices in the
// process.
IEdge oNewEdge = oOriginalEdge.Clone(copyMetadataValues, copyTag,
oNewVertex1, oNewVertex2,
oOriginalEdge.IsDirected);
oNewEdges.Add(oNewEdge);
}
// Restore the original vertices' Tags.
foreach (IVertex oOriginalVertex in m_oVertexCollection)
{
Debug.Assert(oOriginalVertex.Tag is VertexMapper);
VertexMapper oVertexMapper = (VertexMapper)oOriginalVertex.Tag;
oOriginalVertex.Tag = oVertexMapper.OriginalVertexTag;
}
return(oNewGraph);
}
ImportMatrixWorkbook
(
Microsoft.Office.Interop.Excel.Application application,
String sourceWorkbookName,
Boolean sourceWorkbookHasVertexNames,
GraphDirectedness sourceWorkbookDirectedness
)
{
Debug.Assert(application != null);
Debug.Assert(!String.IsNullOrEmpty(sourceWorkbookName));
AssertValid();
// Get the active worksheet of the source workbook.
Worksheet oSourceWorksheet = GetActiveSourceWorksheet(
application, sourceWorkbookName);
// Read or create the names of the vertices in the source workbook.
String [] asVertexNames;
Int32 iFirstEdgeWeightRowOneBased, iFirstEdgeWeightColumnOneBased;
if (sourceWorkbookHasVertexNames)
{
asVertexNames = ReadVertexNames(oSourceWorksheet);
iFirstEdgeWeightRowOneBased = iFirstEdgeWeightColumnOneBased = 2;
}
else
{
asVertexNames = CreateVertexNames(oSourceWorksheet);
iFirstEdgeWeightRowOneBased = iFirstEdgeWeightColumnOneBased = 1;
}
Int32 iVertices = asVertexNames.Length;
switch (sourceWorkbookDirectedness)
{
case GraphDirectedness.Directed:
break;
case GraphDirectedness.Undirected:
CheckSymmetryOfUndirectedMatrix(oSourceWorksheet,
iFirstEdgeWeightRowOneBased,
iFirstEdgeWeightColumnOneBased, iVertices);
break;
default:
Debug.Assert(false);
break;
}
// Create a graph and populate it with the vertices.
IGraph oGraph = new Graph(sourceWorkbookDirectedness);
IVertexCollection oVertices = oGraph.Vertices;
IVertex[] aoOrderedVertices = new IVertex[iVertices];
for (Int32 i = 0; i < iVertices; i++)
{
IVertex oVertex = oVertices.Add();
oVertex.Name = asVertexNames[i];
aoOrderedVertices[i] = oVertex;
}
// Read the edges and import them into the graph.
ReadEdges(oSourceWorksheet, iFirstEdgeWeightRowOneBased,
iFirstEdgeWeightColumnOneBased, oGraph, aoOrderedVertices);
return(oGraph);
}
GetSubgraphAsNewGraph
(
ICollection <IVertex> verticesToInclude
)
{
Debug.Assert(verticesToInclude != null);
Debug.Assert(verticesToInclude.Count > 0);
IVertex oFirstVertex = verticesToInclude.First();
IGraph oParentGraph = oFirstVertex.ParentGraph;
IGraph oNewGraph = new Graph(oParentGraph.Directedness);
IEdgeCollection oNewEdges = oNewGraph.Edges;
IVertexCollection oNewVertices = oNewGraph.Vertices;
// This maps vertex IDs in the original graph to the corresponding new
// vertices in the new graph.
Dictionary <Int32, IVertex> oVertexIDToNewVertexDictionary =
new Dictionary <Int32, IVertex>(verticesToInclude.Count);
// Copy the vertices into the new graph.
foreach (IVertex oVertex in verticesToInclude)
{
IVertex oNewVertex = oNewVertices.Add();
oNewVertex.Name = oVertex.Name;
oVertexIDToNewVertexDictionary.Add(oVertex.ID, oNewVertex);
}
// This contains the IDs of the original edges that have been copied
// into the new graph.
HashSet <Int32> oIDsOfCopiedEdges = new HashSet <Int32>();
// Copy the edges connecting the vertices into the new graph.
foreach (IVertex oVertex in verticesToInclude)
{
foreach (IEdge oIncidentEdge in oVertex.IncidentEdges)
{
IVertex oAdjacentVertex = oIncidentEdge.GetAdjacentVertex(
oVertex);
IVertex oNewAdjacentVertex;
if (
!oVertexIDToNewVertexDictionary.TryGetValue(
oAdjacentVertex.ID, out oNewAdjacentVertex)
||
oIDsOfCopiedEdges.Contains(oIncidentEdge.ID)
)
{
// The adjacent vertex is not in the set of vertices to
// include, or the edge has already been copied into the
// new graph.
continue;
}
IVertex oNewVertex =
oVertexIDToNewVertexDictionary[oVertex.ID];
IEdge oNewEdge;
Boolean bIncidentEdgeIsDirected = oIncidentEdge.IsDirected;
if (oVertex == oIncidentEdge.Vertices[0])
{
oNewEdge = oNewEdges.Add(oNewVertex, oNewAdjacentVertex,
bIncidentEdgeIsDirected);
}
else
{
oNewEdge = oNewEdges.Add(oNewAdjacentVertex, oNewVertex,
bIncidentEdgeIsDirected);
}
oIDsOfCopiedEdges.Add(oIncidentEdge.ID);
}
}
return(oNewGraph);
}
public MiRNADataReader(string sourcefile)
{
// Create a graph with mixed directedness.
graph = new Graph();
vertexes = new Dictionary <string, Vertex>();
// Add vertices to the graph.
IVertexCollection oVertices = graph.Vertices;
IEdgeCollection oEdges = graph.Edges;
using (StreamReader sr = new StreamReader(sourcefile))
{
while (sr.Peek() != -1)
{
string line = sr.ReadLine().Trim();
if (line.Equals(""))
{
continue;
}
string[] tks = line.Split('\t');
string[] miRNAs = tks[2].Split('|');
string[] diseases = tks[6].Split('|');
for (int i = 0; i < miRNAs.Length; i++)
{
Vertex s = new Vertex();
s.Name = miRNAs[i].ToLower();
if (!vertexes.ContainsKey(s.Name))
{
vertexes.Add(s.Name, s);
oVertices.Add(s);
}
else
{
s = vertexes[s.Name];
}
for (int j = 0; j < diseases.Length; j++)
{
Vertex t = new Vertex();
t.Name = diseases[j].ToLower();
t.SetValue(MeSH, tks[7]);
//MeSHDictionaryTagger mesh = MeSHDictionaryTagger.GetInstance(@"D:\Resources\Models\NCBI\MeSH\desc2014.xml", @"D:\Resources\Models\ThirdParty\TsujiiLab\GENIATagger");
//string name = mesh.GetMeSHTrees(tks[7]).First().ToString();
if (!vertexes.ContainsKey(t.GetValue(MeSH).ToString()))
{
vertexes.Add(t.GetValue(MeSH).ToString(), t);
oVertices.Add(t);
}
else
{
t = vertexes[t.GetValue(MeSH).ToString()];
}
Smrf.NodeXL.Core.Edge e = new Smrf.NodeXL.Core.Edge(s, t, false);
e.Tag = tks[5];
e.SetValue(SENTENCE, tks[1]);
e.Name = tks[4];
oEdges.Add(e);
}
}
}
}
}
TestSaveGraph2()
{
// Undirected graph.
IGraph oGraph = new Graph(GraphDirectedness.Undirected);
IVertexCollection oVertices = oGraph.Vertices;
IEdgeCollection oEdges = oGraph.Edges;
IVertex oVertexA = oVertices.Add();
oVertexA.Name = "a";
IVertex oVertexB = oVertices.Add();
oVertexB.Name = "b";
IVertex oVertexC = oVertices.Add();
oVertexC.Name = "c";
IVertex oVertexD = oVertices.Add();
oVertexD.Name = "d";
IEdge oEdge;
oEdge = oEdges.Add(oVertexD, oVertexB, false);
oEdge.SetValue(ReservedMetadataKeys.EdgeWeight, 1.0);
oEdge = oEdges.Add(oVertexB, oVertexC, false);
oEdge.SetValue(ReservedMetadataKeys.EdgeWeight, 3.0);
oEdge = oEdges.Add(oVertexC, oVertexC, false);
oEdge.SetValue(ReservedMetadataKeys.EdgeWeight, 4.12);
m_oGraphAdapter.SaveGraph(oGraph, m_sTempFileName);
String sFileContents = FileUtil.ReadTextFile(m_sTempFileName);
const String ExpectedFileContents =
"DL\r\n"
+ "N=4\r\n"
+ "FORMAT = FULLMATRIX DIAGONAL PRESENT\r\n"
+ "ROW LABELS:\r\n"
+ "\"a\"\r\n"
+ "\"b\"\r\n"
+ "\"c\"\r\n"
+ "\"d\"\r\n"
+ "COLUMN LABELS:\r\n"
+ "\"a\"\r\n"
+ "\"b\"\r\n"
+ "\"c\"\r\n"
+ "\"d\"\r\n"
+ "DATA:\r\n"
+ "0 0 0 0 \r\n"
+ "0 0 3 1 \r\n"
+ "0 3 4.12 0 \r\n"
+ "0 1 0 0 \r\n"
;
Assert.AreEqual(ExpectedFileContents, sFileContents);
}
//*************************************************************************
// Method: VertexNameToVertex()
//
/// <summary>
/// Finds or creates a vertex given a vertex name.
/// </summary>
///
/// <param name="sVertexName">
/// Name of the vertex to find or create.
/// </param>
///
/// <param name="oVertices">
/// Vertex collection to add a new vertex to if a new vertex is created.
/// </param>
///
/// <param name="oDictionary">
/// Dictionary of existing vertices. The key is the vertex name and the
/// value is the vertex.
/// </param>
///
/// <returns>
/// The found or created vertex.
/// </returns>
///
/// <remarks>
/// If <paramref name="oDictionary" /> contains a vertex named <paramref
/// name="sVertexName" />, the vertex is returned. Otherwise, a vertex is
/// created, added to <paramref name="oVertices" />, added to <paramref
/// name="oDictionary" />, and returned.
/// </remarks>
//*************************************************************************
protected IVertex VertexNameToVertex(
String sVertexName,
IVertexCollection oVertices,
Dictionary<String, IVertex> oDictionary
)
{
Debug.Assert( !String.IsNullOrEmpty(sVertexName) );
Debug.Assert(oVertices != null);
Debug.Assert(oDictionary != null);
AssertValid();
IVertex oVertex;
if ( !oDictionary.TryGetValue(sVertexName, out oVertex) )
{
oVertex = oVertices.Add();
oVertex.Name = sVertexName;
oDictionary.Add(sVertexName, oVertex);
}
return (oVertex);
}
//*************************************************************************
// Method: CreateVertex()
//
/// <summary>
/// Creates a vertex.
/// </summary>
///
/// <param name="sVertexName">
/// Name of the vertex to create.
/// </param>
///
/// <param name="oVertices">
/// Vertex collection to add the new vertex to.
/// </param>
///
/// <param name="oVertexNameDictionary">
/// Dictionary of existing vertices. The key is the vertex name and the
/// value is the vertex. The dictionary can't already contain <paramref
/// name="sVertexName" />.
/// </param>
///
/// <returns>
/// The created vertex.
/// </returns>
///
/// <remarks>
/// This method creates a vertex and adds it to both <paramref
/// name="oVertices" /> and <paramref name="oVertexNameDictionary" />.
/// </remarks>
//*************************************************************************
protected IVertex CreateVertex(
String sVertexName,
IVertexCollection oVertices,
Dictionary<String, IVertex> oVertexNameDictionary
)
{
Debug.Assert( !String.IsNullOrEmpty(sVertexName) );
Debug.Assert(oVertices != null);
Debug.Assert(oVertexNameDictionary != null);
AssertValid();
IVertex oVertex = oVertices.Add();
oVertex.Name = sVertexName;
oVertexNameDictionary.Add(sVertexName, oVertex);
return (oVertex);
}
PopulateGraph()
{
IGraph oGraph = m_oNodeXLControl.Graph;
IVertexCollection oVertices = oGraph.Vertices;
IEdgeCollection oEdges = oGraph.Edges;
Double dWidth = this.Width;
Double dHeight = this.Height;
Random oRandom = new Random();
// m_oNodeXLControl.Layout.Margin = 0;
{
#if false // Two shapes only.
IVertex oVertex1 = oVertices.Add();
oVertex1.SetValue(ReservedMetadataKeys.PerVertexShape,
VertexShape.Circle);
oVertex1.SetValue(ReservedMetadataKeys.PerVertexRadius, 5.0F);
oVertex1.SetValue(ReservedMetadataKeys.LockVertexLocation, true);
oVertex1.Location = new System.Drawing.PointF(300, 300);
oVertex1.SetValue(ReservedMetadataKeys.PerVertexLabel,
"This is A: " + oVertex1.Location);
IVertex oVertex2 = oVertices.Add();
oVertex2.SetValue(ReservedMetadataKeys.PerVertexShape,
VertexShape.Circle);
oVertex2.SetValue(ReservedMetadataKeys.PerVertexRadius, 5.0F);
oVertex2.SetValue(ReservedMetadataKeys.LockVertexLocation, true);
oVertex2.Location = new System.Drawing.PointF(500, 300);
oVertex2.SetValue(ReservedMetadataKeys.PerVertexLabel,
"This is B: " + oVertex2.Location);
IEdge oEdge = oEdges.Add(oVertex1, oVertex2, true);
// oEdge.SetValue(ReservedMetadataKeys.PerEdgeWidth, 20F);
m_oNodeXLControl.DrawGraph(true);
return;
#endif
}
{
#if false // Two labels only.
IVertex oVertex1 = oVertices.Add();
oVertex1.SetValue(ReservedMetadataKeys.PerVertexShape,
VertexShape.Label);
oVertex1.SetValue(ReservedMetadataKeys.PerVertexLabel,
"This is a label.");
oVertex1.SetValue(ReservedMetadataKeys.LockVertexLocation, true);
oVertex1.Location = new System.Drawing.PointF(300, 300);
IVertex oVertex2 = oVertices.Add();
oVertex2.SetValue(ReservedMetadataKeys.PerVertexShape,
VertexShape.Label);
oVertex2.SetValue(ReservedMetadataKeys.PerVertexLabel,
"This is another label.");
oVertex2.SetValue(ReservedMetadataKeys.LockVertexLocation, true);
oVertex2.Location = new System.Drawing.PointF(500, 100);
oEdges.Add(oVertex1, oVertex2, true);
m_oNodeXLControl.DrawGraph(true);
return;
#endif
}
Smrf.NodeXL.Visualization.Wpf.VertexShape[] aeShapes
= (Smrf.NodeXL.Visualization.Wpf.VertexShape[])
Enum.GetValues(typeof(Smrf.NodeXL.Visualization.Wpf.
VertexShape));
Int32 iShapes = aeShapes.Length;
Int32 Vertices = 100;
IVertex oFirstVertex = oVertices.Add();
oFirstVertex.SetValue(ReservedMetadataKeys.PerVertexRadius, 4.0F);
IVertex oPreviousVertex = oFirstVertex;
for (Int32 i = 1; i < Vertices; i++)
{
IVertex oVertex = oVertices.Add();
VertexShape eShape = aeShapes[oRandom.Next(iShapes)];
oVertex.SetValue(ReservedMetadataKeys.PerVertexShape, eShape);
#if false // Hard-coded vertex shape.
oVertex.SetValue(ReservedMetadataKeys.PerVertexShape,
VertexDrawer.VertexShape.Diamond);
#endif
#if true // Vertex color.
oVertex.SetValue(ReservedMetadataKeys.PerColor,
System.Windows.Media.Color.FromArgb(255,
(Byte)oRandom.Next(256),
(Byte)oRandom.Next(256),
(Byte)oRandom.Next(256))
);
#endif
#if true // Vertex radius.
Single fRadius = (Single)(
Smrf.NodeXL.Visualization.Wpf.VertexDrawer.MinimumRadius +
(0.1 *
Smrf.NodeXL.Visualization.Wpf.VertexDrawer.MaximumRadius
- Smrf.NodeXL.Visualization.Wpf.VertexDrawer.MinimumRadius)
* oRandom.NextDouble());
oVertex.SetValue(ReservedMetadataKeys.PerVertexRadius, fRadius);
#endif
if (true && oRandom.Next(20) == 0) // Image
{
oVertex.SetValue(ReservedMetadataKeys.PerVertexShape,
VertexShape.Image);
oVertex.SetValue(ReservedMetadataKeys.PerVertexImage,
new System.Windows.Media.Imaging.BitmapImage(
new Uri(oRandom.Next(2) == 1 ?
"..\\..\\Images\\TestImage1.gif" :
"..\\..\\Images\\TestImage2.jpg",
UriKind.Relative)));
}
if (eShape == VertexShape.Label)
{
String sLabel = "This is a label";
if (oRandom.Next(2) == 0)
{
sLabel = LongLabel;
}
oVertex.SetValue(ReservedMetadataKeys.PerVertexLabel, sLabel);
/*
* oVertex.SetValue( ReservedMetadataKeys.PerColor,
* System.Windows.Media.Color.FromArgb(255, 0, 0, 0) );
*
* oVertex.SetValue(
*
* ReservedMetadataKeys.PerVertexLabelFillColor,
* System.Windows.Media.Color.FromArgb(255, 200, 200,
* 200) );
*
* oVertex.SetValue(ReservedMetadataKeys.PerAlpha, (Single)128);
*/
}
else
{
String sAnnotation = "This is an annotation.";
oVertex.SetValue(ReservedMetadataKeys.PerVertexLabel,
sAnnotation);
}
if (true && oRandom.Next(1) == 1) // Vertex visibility.
{
oVertex.SetValue(ReservedMetadataKeys.Visibility,
VisibilityKeyValue.Filtered);
}
#if false // Vertex alpha.
oVertex.SetValue(
ReservedMetadataKeys.PerAlpha, (Single)oRandom.Next(256));
#endif
#if false // Vertex IsSelected.
oVertex.SetValue(ReservedMetadataKeys.IsSelected, null);
#endif
oVertex.Location = new System.Drawing.PointF(
(Single)(dWidth * oRandom.NextDouble()),
(Single)(dHeight * oRandom.NextDouble())
);
IEdge oEdge = oEdges.Add(oFirstVertex, oVertex, true);
oEdge.SetValue(ReservedMetadataKeys.PerEdgeLabel,
"This is an edge label");
#if false // Edge color.
oEdge.SetValue(ReservedMetadataKeys.PerColor,
System.Windows.Media.Color.FromArgb(255,
(Byte)oRandom.Next(256),
(Byte)oRandom.Next(256),
(Byte)oRandom.Next(256))
);
#endif
#if false // Edge width.
Double dEdgeWidth = EdgeDrawer.MinimumWidth +
(EdgeDrawer.MaximumWidth - EdgeDrawer.MinimumWidth)
* oRandom.NextDouble();
oEdge.SetValue(ReservedMetadataKeys.PerEdgeWidth, dEdgeWidth);
#endif
#if true // Edge visibility.
oEdge.SetValue(ReservedMetadataKeys.Visibility,
VisibilityKeyValue.Visible);
#endif
#if true // Edge alpha.
oEdge.SetValue(ReservedMetadataKeys.PerAlpha,
(Single)oRandom.Next(256));
#endif
#if false // Edge IsSelected.
oEdge.SetValue(ReservedMetadataKeys.IsSelected, null);
#endif
#if true
if (oRandom.Next(1) == 0)
{
IEdge oRandomEdge = oEdges.Add(oPreviousVertex, oVertex, true);
#if true // Edge label.
oRandomEdge.SetValue(ReservedMetadataKeys.PerEdgeLabel,
"This is a random edge label");
#endif
}
#endif
oPreviousVertex = oVertex;
}
AddToolTipsToVertices();
SetBackgroundImage();
m_oNodeXLControl.DrawGraph(true);
}
TestRemoveIsolatesFromGroups()
{
IGraph oGraph = new Graph();
IEdgeCollection oEdges = oGraph.Edges;
IVertexCollection oVertices = oGraph.Vertices;
// Non-isolates.
IVertex oVertexA = oVertices.Add();
IVertex oVertexB = oVertices.Add();
IVertex oVertexC = oVertices.Add();
IVertex oVertexD = oVertices.Add();
// Isolates.
IVertex oVertexE = oVertices.Add();
IVertex oVertexF = oVertices.Add();
IVertex oVertexG = oVertices.Add();
oEdges.Add(oVertexA, oVertexB);
oEdges.Add(oVertexB, oVertexC);
oEdges.Add(oVertexD, oVertexA);
// Group1 contains all non-isolate vertices.
GroupInfo oGroup1 = new GroupInfo();
oGroup1.Vertices.AddLast(oVertexA);
oGroup1.Vertices.AddLast(oVertexB);
oGroup1.Vertices.AddLast(oVertexC);
// Group2 contains a mix of isolate and non-isolate vertices.
GroupInfo oGroup2 = new GroupInfo();
oGroup2.Vertices.AddLast(oVertexD);
oGroup2.Vertices.AddLast(oVertexE);
// Group3 contains all isolate vertices.
GroupInfo oGroup3 = new GroupInfo();
oGroup3.Vertices.AddLast(oVertexF);
oGroup3.Vertices.AddLast(oVertexG);
// Group4 is empty.
GroupInfo oGroup4 = new GroupInfo();
List <GroupInfo> oGroups = new List <GroupInfo>();
oGroups.Add(oGroup1);
oGroups.Add(oGroup2);
oGroups.Add(oGroup3);
oGroups.Add(oGroup4);
GroupUtil.RemoveIsolatesFromGroups(oGroups);
Assert.AreEqual(2, oGroups.Count);
Assert.AreEqual(3, oGroups[0].Vertices.Count);
Assert.IsNotNull(oGroups[0].Vertices.Find(oVertexA));
Assert.IsNotNull(oGroups[0].Vertices.Find(oVertexB));
Assert.IsNotNull(oGroups[0].Vertices.Find(oVertexC));
Assert.AreEqual(1, oGroups[1].Vertices.Count);
Assert.IsNotNull(oGroups[1].Vertices.Find(oVertexD));
}
protected void PopulateAndDrawGraph()
{
// Get the graph's vertex collection.
IVertexCollection oVertices = Graph.Graph.Vertices;
// Add three vertices.
IVertex oVertexA = oVertices.Add();
IVertex oVertexB = oVertices.Add();
IVertex oVertexC = oVertices.Add();
// Change the color, radius, and shape of vertex A.
oVertexA.SetValue(ReservedMetadataKeys.PerColor,
Color.FromArgb(255, 255, 0, 255));
oVertexA.SetValue(ReservedMetadataKeys.PerVertexRadius, 20F);
oVertexA.SetValue(ReservedMetadataKeys.PerVertexShape,
VertexShape.Sphere);
// Draw vertex B as a Label, which is a rectangle containing text.
oVertexB.SetValue(ReservedMetadataKeys.PerVertexShape,
VertexShape.Label);
oVertexB.SetValue(ReservedMetadataKeys.PerVertexLabel, "Label");
// Set the label's text and fill colors.
oVertexB.SetValue(ReservedMetadataKeys.PerColor,
Color.FromArgb(255, 220, 220, 220));
oVertexB.SetValue(ReservedMetadataKeys.PerVertexLabelFillColor,
Color.FromArgb(255, 0, 0, 0));
// Annotate vertex C with text that is drawn outside the vertex. All
// shapes except Label can be annotated.
oVertexC.SetValue(ReservedMetadataKeys.PerVertexLabel, "Annotation");
// Get the graph's edge collection.
IEdgeCollection oEdges = Graph.Graph.Edges;
// Connect the vertices with directed edges.
IEdge oEdge1 = oEdges.Add(oVertexA, oVertexB, true);
IEdge oEdge2 = oEdges.Add(oVertexB, oVertexC, true);
IEdge oEdge3 = oEdges.Add(oVertexC, oVertexA, true);
// Customize their appearance.
oEdge1.SetValue(ReservedMetadataKeys.PerColor,
Color.FromArgb(255, 55, 125, 98));
oEdge1.SetValue(ReservedMetadataKeys.PerEdgeWidth, 3F);
oEdge1.SetValue(ReservedMetadataKeys.PerEdgeLabel, "This is edge 1");
oEdge2.SetValue(ReservedMetadataKeys.PerEdgeWidth, 5F);
oEdge2.SetValue(ReservedMetadataKeys.PerEdgeLabel, "This is edge 2");
oEdge3.SetValue(ReservedMetadataKeys.PerColor,
Color.FromArgb(255, 0, 255, 0));
Graph.DrawGraph(true);
}
CloneVertexIntoSubgraph
(
IVertex oOriginalVertex,
IGraph oSubgraph,
Decimal decLevels
)
{
Debug.Assert(oOriginalVertex != null);
Debug.Assert(oSubgraph != null);
Debug.Assert(decLevels >= 0);
AssertValid();
// Get the original vertices and edges to clone. For the vertex
// dictionary, the key is the IVertex and the value is the vertex's
// level, which is the distance of the vertex from oOriginalVertex.
// For the edge HashSet, the key is the IEdge.
Dictionary <IVertex, Int32> oOriginalVerticesToClone;
HashSet <IEdge> oOriginalEdgesToClone;
SubgraphCalculator.GetSubgraph(oOriginalVertex, decLevels, true,
out oOriginalVerticesToClone, out oOriginalEdgesToClone);
// Clone the vertices. This dictionary maps the IDs of the original
// vertices to their clones.
Dictionary <Int32, IVertex> oOriginalToSubgraphVertexMapper =
new Dictionary <Int32, IVertex>();
IVertexCollection oSubgraphVertices = oSubgraph.Vertices;
foreach (IVertex oOriginalVertexToClone in
oOriginalVerticesToClone.Keys)
{
IVertex oSubgraphVertex =
oOriginalVertexToClone.Clone(false, false);
oSubgraphVertices.Add(oSubgraphVertex);
oOriginalToSubgraphVertexMapper.Add(oOriginalVertexToClone.ID,
oSubgraphVertex);
}
// This dictionary is no longer needed.
oOriginalVerticesToClone.Clear();
oOriginalVerticesToClone = null;
// Clone the edges.
IEdgeCollection oSubgraphEdges = oSubgraph.Edges;
foreach (IEdge oOriginalEdgeToClone in oOriginalEdgesToClone)
{
IVertex [] aoOriginalVertices = oOriginalEdgeToClone.Vertices;
IVertex oSubgraphVertex1 =
oOriginalToSubgraphVertexMapper[aoOriginalVertices[0].ID];
IVertex oSubgraphVertex2 =
oOriginalToSubgraphVertexMapper[aoOriginalVertices[1].ID];
oSubgraphEdges.Add(oSubgraphVertex1, oSubgraphVertex2,
oOriginalEdgeToClone.IsDirected);
}
Debug.Assert(oOriginalToSubgraphVertexMapper.ContainsKey(
oOriginalVertex.ID));
return(oOriginalToSubgraphVertexMapper[oOriginalVertex.ID]);
}
TestSaveGraph()
{
// Directed and undirected graphs.
foreach (Boolean bDirected in TestGraphUtil.AllBoolean)
{
IGraph oGraph = new Graph(bDirected ? GraphDirectedness.Directed
: GraphDirectedness.Undirected);
IVertexCollection oVertices = oGraph.Vertices;
IEdgeCollection oEdges = oGraph.Edges;
IVertex oVertex1 = oVertices.Add();
oVertex1.Name = "Vertex1";
oVertex1.SetValue("VertexAttribute1", 123); // Int32
IVertex oVertex2 = oVertices.Add();
oVertex2.Name = "Vertex2";
oVertex2.SetValue("VertexAttribute2", "abc"); // String
IVertex oVertex3 = oVertices.Add();
oVertex3.Name = "Vertex3";
oVertex3.SetValue("VertexAttribute1", 4.0); // Double
oVertex3.SetValue("VertexAttribute2", 23456.0F); // Single
IVertex oVertex4 = oVertices.Add();
oVertex4.Name = "Vertex4";
IVertex oVertex5 = oVertices.Add();
oVertex5.Name = "Vertex5";
IEdge oEdge;
oEdge = oEdges.Add(oVertex1, oVertex2, bDirected);
oEdge.SetValue("EdgeAttribute1", "ea1");
oEdge = oEdges.Add(oVertex3, oVertex4, bDirected);
oEdge.SetValue("EdgeAttribute2", "ea2");
oGraph.SetValue(ReservedMetadataKeys.AllVertexMetadataKeys,
new String [] {
"VertexAttribute1",
"VertexAttribute2",
});
oGraph.SetValue(ReservedMetadataKeys.AllEdgeMetadataKeys,
new String [] {
"EdgeAttribute1",
"EdgeAttribute2",
});
m_oGraphAdapter.SaveGraph(oGraph, m_sTempFileName);
String sFileContents;
using (StreamReader oStreamReader =
new StreamReader(m_sTempFileName))
{
sFileContents = oStreamReader.ReadToEnd();
}
XmlDocument oXmlDocument = new XmlDocument();
oXmlDocument.LoadXml(sFileContents);
XmlNamespaceManager oXmlNamespaceManager = new XmlNamespaceManager(
oXmlDocument.NameTable);
oXmlNamespaceManager.AddNamespace("g",
GraphMLGraphAdapter.GraphMLUri);
String [] asRequiredXPaths = new String [] {
// Graph node.
String.Format("/g:graphml/g:graph[@edgedefault='{0}']",
bDirected ? "directed" : "undirected"),
"/g:graphml/g:key[@id='V-VertexAttribute1' and @for='node'"
+ " and @attr.name='VertexAttribute1'"
+ " and @attr.type='string']",
// Vertex nodes.
"/g:graphml/g:key[@id='V-VertexAttribute2' and @for='node'"
+ " and @attr.name='VertexAttribute2'"
+ " and @attr.type='string']",
"/g:graphml/g:key[@id='E-EdgeAttribute1' and @for='edge'"
+ " and @attr.name='EdgeAttribute1'"
+ " and @attr.type='string']",
"/g:graphml/g:key[@id='E-EdgeAttribute2' and @for='edge'"
+ " and @attr.name='EdgeAttribute2'"
+ " and @attr.type='string']",
"/g:graphml/g:graph/g:node[@id='Vertex1']/"
+ "g:data[@key='V-VertexAttribute1' and .='123']",
"/g:graphml/g:graph/g:node[@id='Vertex2']/"
+ "g:data[@key='V-VertexAttribute2' and .='abc']",
"/g:graphml/g:graph/g:node[@id='Vertex3']/"
+ "g:data[@key='V-VertexAttribute1' and .='4']",
"/g:graphml/g:graph/g:node[@id='Vertex3']/"
+ "g:data[@key='V-VertexAttribute2' and .='23456']",
"/g:graphml/g:graph/g:node[@id='Vertex4']",
"/g:graphml/g:graph/g:node[@id='Vertex5']",
// Edge nodes.
"/g:graphml/g:graph/g:edge[@source='Vertex1' and"
+ " @target='Vertex2']/"
+ "g:data[@key='E-EdgeAttribute1' and .='ea1']",
"/g:graphml/g:graph/g:edge[@source='Vertex3' and"
+ " @target='Vertex4']/"
+ "g:data[@key='E-EdgeAttribute2' and .='ea2']",
};
foreach (String sRequiredXPath in asRequiredXPaths)
{
XmlNode oXmlNode = oXmlDocument.SelectSingleNode(
sRequiredXPath, oXmlNamespaceManager);
Assert.IsNotNull(oXmlNode);
}
}
}