static PolyLine2d merge_paths(PolyLine2d p1, PolyLine2d p2, double eps = MathUtil.Epsilon)
{
PolyLine2d pNew;
if (p1.End.Distance(p2.Start) < eps)
{
pNew = new PolyLine2d(p1);
pNew.AppendVertices(p2);
}
else if (p1.End.Distance(p2.End) < eps)
{
pNew = new PolyLine2d(p1);
p2.Reverse();
pNew.AppendVertices(p2);
}
else if (p1.Start.Distance(p2.Start) < eps)
{
p2.Reverse();
pNew = new PolyLine2d(p2);
pNew.AppendVertices(p1);
}
else if (p1.Start.Distance(p2.End) < eps)
{
pNew = new PolyLine2d(p2);
pNew.AppendVertices(p1);
}
else
{
throw new Exception("shit");
}
return(pNew);
}
static PolyLine2d merge_paths(PolyLine2d p1, PolyLine2d p2, double eps = MathUtil.Epsilon)
{
PolyLine2d pNew;
if (p1.End.Distance(p2.Start) < eps)
{
pNew = new PolyLine2d(p1);
pNew.AppendVertices(p2);
}
else if (p1.End.Distance(p2.End) < eps)
{
pNew = new PolyLine2d(p1);
p2.Reverse();
pNew.AppendVertices(p2);
}
else if (p1.Start.Distance(p2.Start) < eps)
{
p2.Reverse();
pNew = new PolyLine2d(p2);
pNew.AppendVertices(p1);
}
else if (p1.Start.Distance(p2.End) < eps)
{
pNew = new PolyLine2d(p2);
pNew.AppendVertices(p1);
}
else
{
throw new ArgumentException("Input polylines don't share an endpoint.");
}
return(pNew);
}