Hi Faezeh,

I might also need to draw this type of structure for a project very soon. To the best of my knowledge, in CST geometry, there is elliptical cylinder, not ellipsoid. Equation based surface may be a solution. Otherwise, you have to import this structure from somewhere else. If you have found other solution, please let me know. Thanks.

I second with M. Ababil Hossain

M. Ababil Hossain Md Saimoom Ferdous

Hi

Thank you for your responces.

I actuallt try to define it by Analytical curve. The first problem is defining equation parametricly. It should only depend on one "varaible" which is not easy for spheroids. Then, if this solve, it will be a empty 3D shape, and it is not possible to define material inside as far as I know.

So, I take this easy way, I model a sphere. Then from " transform-->scale", I scale it in two directions, un-uniformly (check attachments).

It works great.

Thanks a lot Faezeh Zarrinkhat .

Faezeh Zarrinkhat , could you please help me out here?

https://www.researchgate.net/post/How_can_I_draw_a_conical_log_spiral_antenna_in_CST

M. Ababil Hossain Yourwelcome. I also check your question. I don't have any clue how to solve it. I will keep searching to find if there is any solution for it.

thank you

that was very useful for me

You can use the function ellipse in Curves for ellipse generation.