I created a cone in Rhino and modified it. Then I imported the resulting surface to grasshopper and applied isotrim+domain2 and this operation doesn´t modify the surface I added, instead it recreates the original cone. It also does this same thing when I use these operations to the half of a sphere: it shows the entire sphere instead of half. Is there something I must do to the surface before doing these operations?
Thanks for your help and replies!