12. Hull for a boat (Example 2)

This exercise is designed to compare three ways to make a boat hull from the same curves, this time with a rounded rear side. Note the different results depending the method used.	2nd method: Hull Coons
	3rd method: Ruled Surface

Boat Hull 2 (1rst method: Hull)

Þ Step 1: Surface generation

q Tool: Hull q Open the model file: Hull2 q Do it: This tool cannot be used, because two out of the three curves have no null dimension, i.e., they are 3D curves. q See the detailed explanations in the chapter: User Manual/Tools/Construction/Surfaces/Hull tool

Boat Hull 2 (2nd method: Coons)

Þ Step 1: Surface generation

q Tool: Hull/Coons q Open the model file: Hull2 q Do it: With the Coons Hull tool, click first on the vertical rear curve, then on the two others. The result is a mesh. q See the detailed explanations in the chapter: User Manual/Tools/Construction/Surfaces/Coons Surfaces

Þ Step 2: Mirror the mesh

q Tool: Mirror 3D q Do it: Mirror the object from the vertical axis. The result is something that resembles a boat hull. q See the detailed explanations in the chapter: User Manual/Tools/Assembly/Symmetry

Boat Hull 2 (3rd method: Ruled Surface)

Þ Step 1: Surface generation

q Tool: Ruled Surface q Open the model file: Hull2 q Do it: Using only the two horizontal curves, and clicking the two ends not joined (delete the vertical curve), we still get a half hull, but tighter than with the two previous methods. q See the detailed explanations in the chapter: User Manual/Tools/Construction/Ruled Surface

Þ Step 2: Mirror the mesh

q Tool: Mirror 3D q Do it: Mirror the object from the vertical axis. The result is something that resembles a boat hull. We can see that the skin is “tighter” than with the previous methods. q See the detailed explanations in the chapter: User Manual/Tools/Assembly/Symmetry