public int GetNeighbour(QuasiEdge commonEdge)
{
if (!HasTheEdge(commonEdge))
{
throw new NotImplementedException();
}
if (this.first == commonEdge.First)
{
if (this.second == commonEdge.Second)
{
return(this.FirstSecondNeighbour);
}
else if (this.third == commonEdge.Second)
{
return(this.ThirdFirstNeighbour);
}
}
else if (this.second == commonEdge.First)
{
if (this.first == commonEdge.Second)
{
return(this.FirstSecondNeighbour);
}
else if (this.third == commonEdge.Second)
{
return(this.SecondThirdNeighbour);
}
}
else if (this.third == commonEdge.First)
{
if (this.first == commonEdge.Second)
{
return(this.ThirdFirstNeighbour);
}
else if (this.second == commonEdge.Second)
{
return(this.SecondThirdNeighbour);
}
}
throw new NotImplementedException();
}
public int GetThirdPoint(QuasiEdge edge)
{
if (!HasTheEdge(edge))
{
throw new NotImplementedException();
}
if (this.first != edge.First && this.first != edge.Second)
{
return(this.first);
}
else if (this.Second != edge.First && this.Second != edge.Second)
{
return(this.Second);
}
else if (this.third != edge.First && this.third != edge.Second)
{
return(this.third);
}
else
{
throw new NotImplementedException();
}
}
public bool HasTheEdge(QuasiEdge edge)
{
return(this.HasThePoint(edge.First) && this.HasThePoint(edge.Second));
}