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