Cocoon split surface


I am working on cocoon mesh and I have created my “bubbles” but Im trying to split them in a half to have them as a glass dome structure. I have tried to mesh split it trim it; I baked the object and try to split it in rhino but nothing is working. Any ideas how I could do it in Grasshopper?

Show the gh

cangaroo (19.2 KB)

Thank you for you solution! I am new to grasshopper, can you explain what is the “data” you connect? I have tried the mesh split but Im still missing some step.

It is only for display, MSP shows A, B, I like to see A only.

Ok now I get it, thanks again for help!