Triangulate Solid and control its points

Rhino Rhino for Windows
1

Hi all,

Newbie here, I have difficulties to modify the ground for my architectural project.
The ground I imported in rhino is triangulated, but after I use boolean difference to implant the shape of my building, the ground is no more triangulated. Therefore, modifying the control points of the solid makes “ruled surfaces”, which I don’t want.
I’m looking for a way to triangulate my solid, going through meshes seems to heavy ?

pre boolean
pre boolean1209×826 579 KB

post boolean
post boolean1209×826 545 KB

ruled surface
ruled surface862×738 195 KB

rhino file https://we.tl/t-cK3KjKu5dK (70Mo)

2

Hello - I would work with it as a mesh and not surfaces at all if you want all triangles. But is that actually what you want? My guess is you’d like the terrain ‘simplified’ to a surface, just judging from your image.

-Pascal