[Gmsh] 答复: apply background mesh to non-planar surface

[Jin Yao]

Hi Prof. Christophe Geuzaine,


Thanks for your attention.


Can you elaborate this sentence?  "Put your background field on a 3 grid that covers your surface"

My background field is a 2-dimension field on the surface, how to put it on a 3 grid?

________________________________
发件人: Christophe Geuzaine <cgeuzaine at ulg.ac.be>
发送时间: 2017年6月7日 7:42
收件人: Jin Yao
抄送: gmsh at onelab.info
主题: Re: [Gmsh] apply background mesh to non-planar surface


> 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
http://www.montefiore.ulg.ac.be/~geuzaine

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