[Gmsh] Is there a way to apply Progression or Bump when using Extrude command?

[Feifei TONG]

Dear All,

A nice weekend to you.

I have a face (plane 1) in X-Y plane and would like to extrude 10 layers in
z-axis. The Extrude command is applied here as,

Extrude {0, 0, -5} {
  Surface{1};
  Layers{10};
  Recombine;
}

The problem is that those 10 layers are evenly distributed along z-axis,
with a delta-z of 0.5; But, I would like to see the distances among those
layer gradually decrease or increase with a Progression or Bump command. Is
there a way to realize this?

Any help would be greatly appreciated.

Kind regards,
Albert
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