[Gmsh] Can gmsh be used to generate random rough surface?

[xiang daopu]

Hello everybody,
Can (and How?) gmsh be used to generate random rough surfaces? (Random Rough
Surfaces, such Gauss Distribution Random Rough Surface etc.) .
I try my best to do this in gmsh, but I failed to do so. Can anybody help
me?
Thanks in advance!
Daopu,Xiang
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