| 摘要 |
A method for generating a trimming setpoint for an ophthalmic lens for it to be mounted in a surround of a spectacle frame, includes: a) acquiring the shape of a first longitudinal profile of the surround, b) constructing, on a two-dimensional projection of the first longitudinal profile, at least two predetermined geometrical figures, by adjusting their dimensions to those of the two-dimensional projection, c) calculating differences between the two-dimensional projection of the first longitudinal profile and each of the predetermined geometrical figures, d) from the target geometrical figures, each of which has an associated trimming parameter, selecting the target geometrical figure that is closest to the first longitudinal profile according to the differences, e) calculating the trimming setpoint according to the shape of the first longitudinal profile and the trimming parameter associated with the selected target geometrical figure.
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