public void Concatenate(MPath path2)
{
var list1 = GetPositions();
var list2 = path2.GetPositions();
list1.AddRange(list2);
SetPositions(list1);
var list1n = line.GetNormals();
var list2n = path2.line.GetNormals();
list1n.AddRange(list2n);
line.SetNormals(list1n);
Destroy(path2);
dotTo = path2.dotTo;
line.SetMesh();
}