MODELLING METHOD AND SYSTEM

摘要

A method includes defining (50) a group of control points representing the freeform geometry, defining (52) an initial baseline between a start point and an end point of the freeform geometry and deriving (53) an initial set of parameters for each control point to represent an initial location of the control point relative to the initial baseline. The method includes choosing (54) a new start point and a new end point for a modified freeform geometry, defining (56) a new baseline between the new start point and the new endpoint; applying (55) a modification to the freeform geometry, deriving (57) a recalculated set of parameters for each of the control points to provide a representation of a new location of the control point, relative to the new baseline, for the applied modification and rendering (58) the modified freeform geometry using the recalculated set of parameters.