protected override void SolveInstance(IGH_DataAccess DA)
{
List <GH_PPolyline> pp = new List <GH_PPolyline>();
DA.GetDataList("PPolyline", pp);
PPolyline poly = new PPolyline();
foreach (GH_PPolyline ppoly in pp)
{
poly.AddRange(ppoly.Value);
}
DA.SetData(0, new GH_PPolyline(poly));
}
