关键词: 曲面重建, 截面数据, 样条, 融合算法, 曲面拼接

Abstract: A method of [C1] surface reconstruction based on cross-sectional data is proposed in this paper. Blending method is used to merge the points and curves in order to generate a smooth reconstructed surface. The proposed method is capable of surface fitting directly based on the cross-sections where the number of control points varies from section to section, which avoids the step of having compatible cross-sectional curves defined on common knot vector in NUBRS surface reconstruction. So it won’t end up with a large number of control points in the resultant skinning surface due to knot inserting. Besides, the method also completes the curve and surface merging by using blending method, which makes the differential information not necessary in smoothing joining.

Key words: surface reconstruction, cross-sectional data, spline, blending method, surface joining