http://groups.google.com/group/grasshopper3d/web/TripleCull.png
-- David Rutten [email protected] Robert McNeel & Associates On Mar 13, 4:56 pm, K4rl33 <[email protected]> wrote: > Hi guys, > playing with the grasshopper, I've some trouble with the operations > between list of points.. > > Now I will explane the process, then the problem: > > 1. I take a surface and I extract the pointgrid > 2. I take 3 points out of the surface > 3. I calculate the distance between each point and the pointgrid. > 4. I sort the pointgrid lists using the distance from each point and > the pointgrid > 5. I extract the first 10 element of the re-ordered pointgrid...so I > can take the nearest 10 points from each point. > > Here comes the problem: > > what I want to do is to take the points not involved in the subset > controlled by the three points. And to do this I have to take the > first pointgrid and subtract the three subsets of points of the same > grid to obtain what i want. > > The question is: can I do that? and how? I've tried with booleans, but > it doesn't work... > > I add a quick shot to give a visual explanation of the > problem!http://groups.google.com/group/grasshopper3d/web/ptgrids.jpg > > Thank you guys
