[Gmsh] 3D mesh with fixed nodes

[pacome armagnat]

Hello,

I am working on a finite element solver for the Poisson equation for
electrostatics calculations and was thinking about using Gmsh for the
generation of the finite element mesh.

My problem is the following: I am working in a 3D space that has some
boundary conditions. In this space I have sites on which I know the
potential. I would like to avoid doing interpolations so I want the nodes
in this region to correspond to my sites. I have tried some tutorials but
didn't find any solution.

Is this possible with Gmesh?

Thank you in advance,
Pacôme
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