Evolutionary direct manipulation of free form deformation representations for design optimization

摘要

An improved method for optimizing a design, based on direct manipulations of the object points of a design. In addition, the number and modifications of control points is kept as minimal as possible while the targeted movement of object points is realized and the automatic adaptation and generation of a set of control points for deformations which allows the movement of object points to desired positions. One aspect of the invention is to generate the transformation function f which is optimized to be able to realize desired changes of object parameters by means of control point variations. This optimization can be realized in a way that the mapping between the original coordinate system of the design and the spline coordinate system is not changed, so that no additional “freezing” process (the generation of the mapping between the coordinate systems) is necessary.