# [Gmsh] parametric surface ?

**Christophe Geuzaine**
cag32 at case.edu

*Sat May 13 23:41:37 CEST 2006*

VnPenguin wrote:
>* Hi all,
*>* I would like to know if it's possible to define the following
*>* parametric surface in gmsh ?
*>*
*>* x = u* sin(v)
*>* y = u * cos(v)
*>* z = H * pi * sin(v)
*>*
*>* where H & pi are constant.
*>* 0<= t <= 2*pi
*>* 0<= u <= 5
*>*
*
Not directly with the current version, although general parametric
curves/surfaces are on our TODO list.
Your best bet for now is to define an approximation of the surface:
either in the .geo file (e.g. by creating a collection of Ruled
Surfaces), or directly as a surface mesh in a .msh file.
>* Thank you,
*>*
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*>* http://www.geuz.org/mailman/listinfo/gmsh
*>*
*
--
Christophe Geuzaine
Assistant Professor, Case Western Reserve University, Mathematics
http://www.case.edu/artsci/math/geuzaine