[Gmsh] Frustum background field

[Christophe Geuzaine]

> On 24 Jan 2019, at 10:27, Alessandro Vicini <alessandro.vicini at sitael.com> wrote:
> 
> 
> 
> The "frustum" kind of background field uses a bilinear distribution for the mesh size, from inner to outer radius and from one side to the other. For my particular needs (but hopefully not only mine), it would be useful to have a bi-exponential distribution. Could this be introduced in one of the next releases...? Thank you.

This should be easy to implement: have a look at the other fields in https://gitlab.onelab.info/gmsh/gmsh/blob/master/Mesh/Field.cpp and don't hesitate to submit a merge request.

Christophe

> 
> A.
> 
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— 
Prof. Christophe Geuzaine
University of Liege, Electrical Engineering and Computer Science 
http://www.montefiore.ulg.ac.be/~geuzaine