[vtkusers] Normal vector of the surface of ellipstic cylinder

[Girish Lande]

I think you need to find a way to introduce more triangles in your polydata.

One way I can think of is to create multiple successive extrusions instead
of creating one single extrusion. And then append polydata of these
multiple extrusions which will definitely have more points and triangles.
(Please see attached image). Your current polydata is represented by fig.
A. and what you need is polydata as per figure B.
[image: Inline images 1]

On 28 July 2017 at 09:19, arwtyxouymz <arw.tyx-ouy_mz at ezweb.ne.jp> wrote:

> Thank you Girish Lande!
>
> Can I not get normals the side surface of about my extruded object?
> Should i change the extrusion method to create elliptic cylinder if I want
> to get the side surface normals?
>
> But I don't know other ways....
>
> please tell me!
>
>
>
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-- 
thanks & regards,
Girish

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