public VertexStore MakeVxs(VertexStore vxs)
 {
     return(VertexStoreBuilder.CreateVxs(this.GetVertexIter(), vxs));
 }
 public static VertexStore MakeVxs(this Ellipse ellipse, VertexStore output)
 {
     //TODO: review here
     return(VertexStoreBuilder.CreateVxs(GetVertexIter(ellipse), output));
 }