I have two lofted surfaces (option loose). The upper surface with the green loft curve is resulting in a surface that can not be splitted by the cutting plane. The lower surface with the cyan loft curve is resulting in a surface that can be splitted. I can not find out what is wrong with the green problem curve. Can you help me?
I thought I recognized that hull form. You did the lofting tutorial a few years ago with the RhinoNL group right?
I haven't downloaded your attachment and taken a look yet but my first guess (before making some coffee and looking at your lofts) is that there may be some co-incident points. I've been given Maxsurf generated hulls that wouldn't split that had chines and greases formed by stacking control points. Just a guess and I will take a closer look.
Hi Bas - the stern splits but the long curve of intersection with the plane comes up a little short at the bow end. I ExtendSrf-ed the front vertical edge of the surface by 100 to give a little more overlap with the plane, then it works OK.
This hull is made by a student at the technical university of Delft. I am teaching them hull form generation with Rhino. The method is indeed the same as published by Rhinocentre.nl. Hope you can help after your coffee,
Thanks, I did that test too. Extend surface is too much a trick which I can not teach to my students. I would like to know why one curve fails while the other doesn’t.
Hi Bas - I can’t tell you why in any detail, myself… it looks to me like it is a weakness in the surface-surface intersector that appears to be fixed in V6 - the Split works there. The Intersection curve in V5 ends on a knotline, V6 takes the curve to the edge as expected…
Hi Bas, I just mean the lofting method that you speak of. The trimming of the surface isn’t accepted by Smart 3D. Just been looking for a way to make this hull that I’ve been working on.