How to split Object by terrain

[maravillosome]

Hi, I am attempting to split Sphere by terrain and get a result as in the photo below, but I have a problem with that. Any thoughts would be greatly appreciated.

site.rvt (3.9 MB)

[Steven]

In your screen capture, you have the same polysurface splitting itself?

[maravillosome]

Yeah, it was just misclick, but anyways if u connect top and bottom nodes it will run into the problem

[Steven]

What is the problem? Can you show what the Split node is doing?

[maravillosome]

The node Mesh.ToPolysurface does not react to mesh (lightened with red - Zero means)
The terrain was imported from SketchUp and then created in Revit by topography tool.

[Steven]

This should solve your problem.

[maravillosome]

Thanks a lot, it helps me!

[terjefj]

a little package tip. If you exchange parts of the script with this springs node Mesh.ToPolySurface you will reduce runtime of the script by alot

just ran a mesh with 9.5k vertices in 23 seconds thx to @Dimitar_Venkov and his ꟿ nodes😀