[Gmsh] Quadrangular mesh with flat faces from ruled surface

[Nilanka Ekanayake]

Hi

I have the same problem. I am creating a sphere which use Rules Surface + Transfinite Algorithm. Even though I set the Mesh.ElementOrder = 1; Still I get some curvatures in the quads. 

I need flat quad mesh surfaces that are created from Ruled Surface Options. Any help would be great!

Thanks,
Nilanka.