How to treat an excisting Rhino Hull in Orca3D

[wicher]

Dear all,

Please inform me how to import or convert an excisting hull (made in Rhino, consisting of separate surfaces made mainly by using the curved network command, and joined by joine edge) into a usable Orca3D hull; because when I use the Hull Asistant to generate a new hull from scratch, I find controll points. On my excisting hull however, there are none. Surely I have to take a different approach, and surely my problem lies in the basics of generating hulls in Rhino.. I noticed that I am surrounded by experts in this forum so please enlighten me.

Best Regards, Wicher

[lleibman]

Hi Wicher,

The surfaces you created in Rhino using the various surface creation commands are the same kind of surfaces created from Orca3D. The only reason you cannot see the control points on them is because you have joined them into a polysurface. Rhino 4 does not let you see and edit the control points on polysurfaces because you could modify the surfaces in such a way that they can no longer be joined. All you need to do to see control points is "explode" the joined surfaces using the Explode command. You can try to re-join them after editing them.

Let me know if this does not address the issue.

Larry

[horumbou]

Yeah u just need to explode it cuz this is polysurface
btw,sometimes ur existing Hull if it conform to some rule
it can just use MergeSrf command to Merge it (smooth option:no)
u can use split command at isocurve of the Orca3D Hull (so split a knot point) to see what i mean
example:
Use Hull-assistant make a planning Hull
and split at the chine,now u can see two hull with control points(F10)
cuz they all are surface not polysurface
now use MergeSrf  merge it (smooth option:no)
so i think when u make this practice
u will know what is the rule

another way
u can use orca3D-assistant to fit ur existing Hull(even AutoCAD 3-View Lines or Polysurface Hull)to make another similar ones
Good Luck