Use a plane as a clipping plane

Rhino Rhino for Mac
, ,
1

Hey!
I’m trying to see if there’s some way to do this.
I have a surface as my terrain, and a lot of simple extrusions as buildings that sometimes intersect and go below the plane
I am using a clipping plane to draw an elevation of the model, but the extrusions are visible from below the plane I generate. Is there any way to use that surface as a clipping plane so the extrusions don’t show through?

2

Try Trim.
Select the surface, then click on the superfluous part of the buildings.

3

Hi Pablo - set another clipping plane to the plane…?

-Pascal

4

I have the impression that the terrain surface is more complex than a simple plane.

5

It’s not a flat surface, sorry if I didn’t specify. It’s generated from contour lines, and the extrusions have the base at multiple heights.

@Eugen There’s a few hundred of them, I was hoping for some solution that didn’t involve modifying them individually

6

I see.
How about this:

  • Split all the buildings with the surface. Then of course you want to get rid of the parts below.
  • Create a selection volume by extruding the surface down. Might be necessary to copymove it up a bit, then extrude down, because of tolerances. Use SelVolumeObject, Window mode.