Hi Eric, I have the following strange result: the volume calc is not done at lower water line heights but at higher draughts it takes the wrong volume above the water line. See link to picture. It seems I have a correct BREP as the directions are okay and there are no naked edges. I do not have time the coming days to look into this problem.
UpperHullData.jpg: http://groups.google.com/group/grasshopper3d/web/UpperHullData.jpg Ideas for further development: 1. an interactive 3D lines plan 2. an interactive cross section area curve 3. check on the in and outflow waterline angle At this moment I do not think that grasshopper is the tool to calculate stability. I think: Develop a hull(s), then check the hydrostatic data by grasshopper and than switch to Orca and than to a stability package with intact-stability-regulation checks and damage and probabilistic stability. So I think I will not use the heel and trim option. (but maybe others will) Cheers, Bas On Jan 27, 11:25 pm, postal256 <[email protected]> wrote: > Just finished some updates to the file. Added some functionality and > changed several things. Cleaned it up and organized. > > added Cp calculation. Changed the way it gathers LWL and BWL data. > Added Trim rotation slider (already had Heel slider). and some other > changes. > > I took the waterline section and tried tried to take a BoundingBox of > it to extract the LWL and BWL, but it was giving errors sometimes (I > think because it was a 'flat' box). So I simply extruded it in the Z > by 1 and got the bounding box from that. I believe data is all > correct. > > David, Why doesn't Grasshopper have curve BoundingBox? > > I also changed the name to Hydrostatics Rev 8 > > http://grasshopper3d.googlegroups.com/web/Hydrostatics%20Rev%208.ghx?... > > Eric
