Rhino ship hull

Good day, all!



I am interested in your opinion regarding the creation of an X-bow hull of a ship. To achieve the best result and create a smooth surface, I came to the conclusion that it is better to do this using one surface. I made all the curves smooth using the curvature graph and created the optimal number of points in my opinion. I assembled the hull from separate surfaces and then divided it using the contour function. I encountered the problem of mating the hull surface with its side. I created the surface using the surface by sections function. I tried to use different methods of mating the surfaces of the side and the bottom of the hull, but I always got some curvature as in the photo. Based on all this, can this method be considered irrational and forgotten?

This may be the root cause of your difficulties. Without more information about the shape it is difficult to suggest how it might be modeled.

Are you trying to create a single surface to replace multiple surfaces?

It appears that between the straight portion and the curved portion there should be tangent continuity but not curvature continuity. But a single surface will inherently have curvature continiuty, which causes your result.















I tried to create a line in the midship area and connect the side line and the bottom line of the ship tangentially, but this did not lead to the desired result.

Single surface modeling is not the correct approach, as a hull, especially at that scale is not a simple 4 sided smooth surface.

Here is one method of creating a hull of that scale: https://youtu.be/3XkdIsleAqY?feature=shared

The bow of course will present it’s own challenges. Normally it helps to think of the bow stem as a separate rounded surface spanning across the centerline.

Thanks for the reply, in some ways it is very difficult to create 2 and 3 curve geometry according to this method (on youTube) to keep the X-bow copyable. Good spatial thinking is required))))
I studied this method first, but I was unable to maintain the geometry in the bow of the hull due to the 2 3 curve as in the video.