Method and apparatus of forming curved surfaces

Details Method and apparatus of forming curved surfaces Method and apparatus of forming curved surfaces

1986-07-22

1988-12-13

Harkcom, Gary V.

Boots, shoes, and leggings

340729, 364522, G06F 1572

Patent

active

047915811

ABSTRACT:
A method and apparatus for interactively generating and visually displaying deformed, free curved surfaces using a computer aided display apparatus by designating a desired deformation area, including an action point, on a non-deformed surface, determining a vector field function Fi (deformation rate) at each point within the deformation area; designating a deformation vector V.sub.i * (deformation quantity and direction) at the action point; adding the position vector P.sub.i-1 * (non-deformed curved surface) to the position vector V.sub.i * * F.sub.i (deformation quantity) to generate a position vector P.sub.i * (deformed curved surface); and visually displaying the deformed curved surface represented by the position vector P.sub.i *.

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patent: 4654805 (1987-03-01), Shoup, II
patent: 4674059 (1987-06-01), Schrieber
patent: 4698768 (1987-10-01), Thuy et al.
patent: 4703440 (1987-10-01), Birk et al.

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