A computer-implemented method of design of surfaces defined...

G - Physics – 06 – F

Patent

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G06F 17/50 (2006.01) G05B 19/4097 (2006.01)

Patent

CA 2671258

The invention relates to a method of design of ruled surfaces, comprising a step of accessing data defining guiding curves P(u) and Q(v) (S 110) and a cost function f(t, w) (S120). Given P(u) and Q(v), the unknown coupling is a parameterized curve s ~(t(s), w(s)). The method further comprises defining (S200) an objective function of the type J = J( f, t, w), involving both f(t, w) and coordinates t, w of the coupling curve. Then, optimizing the objective function J makes it possible to obtain the target coupling curve (S400). Finally, a ruled surface S(s,.lambda.) =.lambda.Q(w(s)) + (1- .lambda.)P(t(s)) is provided (S500), according to the guiding curves P(t(s)) and Q(w(s)), composed with the coordinates t, w of the coupling curve previously obtained. In addition, the objective function is further constrained at the optimization step (S200 - S400) such that arguments t, w of the cost function f(t, w) are regulated by a regulation function µ. The invention generalizes to any surface defined by guiding curves and further concerns a computerized system and a computer program product comprising means adapted for implementing the method of the invention.

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