internal nNode FindNode(int id)
{
int i = _nodes.IndexOfKey(id);
if (i >= 0)
{
return(_nodes.Values[i]);
}
VfException.Error("Inconsistent data");
return(null);
}
internal Vertex <TV, TE> FindVertex(int id)
{
var i = VertexList.IndexOfKey(id);
if (i >= 0)
{
return(VertexList.Values[i]);
}
VfException.Error("Inconsistent data");
return(null);
}
public eNode FindOutEdge(int nidTo)
{
try
{
return(_edgesFrom[nidTo]);
}
catch (Exception)
{
VfException.Error("Inconsistent Data");
}
return(null);
}
public Edge <TE, TV> FindOutEdge(int vidTo)
{
try
{
return(EdgesFromList.FirstOrDefault(e => e.To.ID == vidTo));
}
catch (Exception)
{
VfException.Error("Inconsistent Data");
}
return(null);
}
public void DeleteEdge(int vidFrom, int vidTo)
{
var vtxFrom = FindVertex(vidFrom);
var vtxTo = FindVertex(vidTo);
var end = vtxFrom.EdgesFromList.FirstOrDefault(e => ReferenceEquals(vtxTo, e.To));
if (end == null)
{
VfException.Error("Inconsistent Data");
}
vtxFrom.EdgesFrom.Remove(vidTo);
vtxTo.EdgesTo.Remove(end);
vtxFrom.EdgesFromList.Remove(end);
}
public int GetOutEdge(int idFrom, int pos, out object attr)
{
eNode end = null;
try
{
end = FindNode(idFrom)._edgesFrom.Values[pos];
}
catch (Exception)
{
VfException.Error("Inconsistent data");
}
attr = end._attr;
return(end._idTo);
}
public int GetOutEdge(int idFrom, int pos, out TE attr)
{
Edge <TE, TV> end = null;
try
{
end = FindVertex(idFrom).EdgesFrom.Values[pos];
}
catch (Exception)
{
VfException.Error("Inconsistent data");
}
// ReSharper disable once PossibleNullReferenceException
attr = end.Attr;
return(end.IDTo);
}
public void AddEdge(int vidFrom, int vidTo, TE attr = default(TE))
{
var end = new Edge <TE, TV>(vidFrom, vidTo, this);
var vtxFrom = FindVertex(vidFrom);
var vtxTo = FindVertex(vidTo);
end.Attr = attr;
try
{
vtxFrom.EdgesFrom.Add(vidTo, end);
vtxFrom.EdgesFromList.Add(end);
vtxTo.EdgesTo.Add(end);
}
catch (Exception)
{
VfException.Error("Inconsistent Data");
}
}
public void InsertEdge(int nidFrom, int nidTo, object attr)
{
eNode end = new eNode();
nNode nodFrom = FindNode(nidFrom);
nNode nodTo = FindNode(nidTo);
end._idFrom = nidFrom;
end._idTo = nidTo;
end._attr = attr;
try
{
nodFrom._edgesFrom.Add(nidTo, end);
nodTo._edgesTo.Add(end);
}
catch (Exception)
{
VfException.Error("Inconsistent Data");
}
}