How to modify the surface type

Hi everyone,

I have a .3dm file from others, in which all the surface are consisted of small triangular shape small surfaces. I checked on website, and found that this seems to be a “populated surface or surface discretization”. Can someone please let me know how to merge these small surfaces, so that I can get a regular type 3D geometry?

Thanks in advance, a more detailed command instruction would be appreciated as I am new to Rhino.


Handled in a parallel thread.