Parametric design method for shapes with aesthetic free-form surfaces
GMP'06 Proceedings of the 4th international conference on Geometric Modeling and Processing
Sketch-based aesthetic product form exploration from existing images using piecewise clothoid curves
Journal of Visual Languages and Computing
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Abstract: Generally, in the field of industrial design, measurement data of a clay model are faired, and its three dimensional model is made in CAD. However, it is a problem that this fairing work take a long time and require a great deal of labor. We propose an automatic fairing system of a curve for the application to reverse engineering technology. The system is constructed by the following five steps. 1) Key-line data are extracted from a clay model by a 3D-digitizer. 2) The extracted key-line data are approximated by a spline with a genetic algorithm. 3) The spline curve (key-line) is divided into curves of monotone curvature. 4) "Characteristic" of the curve is analyzed for each curve of monotone curvature. 5) Each curve of monotone curvature is substituted by a visual language based on the result of the analysis mentioned above, and each key-line is reconstructed by the visual language. By this system, we can easily obtain an aesthetic curve intended by a designer in a short time.