public EdgeBase(IVertex From, IVertex Meta, IVertex To)
{
_from = From;
if (Meta != null)
{
_meta = Meta;
}
else
{
_meta = MinusZero.Instance.Empty;
}
if (Meta is IHasUsageCounter)
{
IHasUsageCounter huc = (IHasUsageCounter)Meta;
huc.UsageCounter++;
}
_to = To;
if (_to != null) // edge.To==null used for visualizing not existing edges (possible to be filled by user)
{
_to.AddInEdge(this);
}
}
public NoInEdgeInOutVertexEdge(IVertex From, IVertex Meta, IVertex To)
{
_from = From;
if (Meta != null)
{
_meta = Meta;
}
else
{
_meta = MinusZero.Instance.Empty;
}
if (Meta is IHasUsageCounter)
{
IHasUsageCounter huc = (IHasUsageCounter)Meta;
huc.UsageCounter++;
}
_to = To;
// THIS IS NOT DONE HERE BY PURPOSE
//
// _to.AddInEdge(this);
//
}
