[Gmsh] apply background mesh to non-planar surface

Christophe Geuzaine cgeuzaine at ulg.ac.be
Wed Jun 7 09:42:37 CEST 2017

> On 4 Jun 2017, at 20:06, Jin Yao <jinyao at outlook.com> wrote:
> Hi experts, 
> Is it feasible to generate background mesh to non-planar surface, such as the surface of a  sphere?
> For planar surface, it is easy to generate a background mesh, which consists of scalar triangles. But for non-planar surface, the inner points of triangles are not on the surface even when the vertices of scalar triangles lie on the surface. 
> Could anyone suggest a workaround if there's no direct solution? Thanks

Put your background field on a 3 grid that covers your surface: Gmsh will happily interpolate the volume data on the non-planar surface.

> Yao
> Sent from my phone
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Prof. Christophe Geuzaine
University of Liege, Electrical Engineering and Computer Science 

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