Marine Hydrostatics

Hi everyone ! I’m struggling to use this marine hydrostatics script : Marine Hydrostatics in Rhino Grasshopper
Does anyone can help me ?

I do not understand why I have the entire boat and not only the belowSurface when clicking on this panel (green on the picture).

Thanks in advance for your help,


I can’t tell anything from the screen shot. If you want to send me the script with your hull internalized, I’ll take a look.

Is your hull a ‘Closed Brep’? Is the hull’s waterline at Z = 0?

thanks for your reply.
yes the hull is a closed brep.
How can I check that the hull’s waterline is at Z = 0 ?

Look at it in front view.