期刊文献+
共找到2篇文章
< 1 >
每页显示 20 50 100
任意拓扑网格上G^2连续曲面构造
1
作者 吴检宝 马利庄 +1 位作者 金通洸 汪国昭 《自然科学进展(国家重点实验室通讯)》 1998年第2期142-149,共8页
研究了任意拓扑网格上G^2插值曲面的构造解,必要时将任意拓扑网格剖分,使得每个面均为矩形片(或三角片)。对网格内部顶点度数N≠3,4,6,给出了仅与网格拓扑有关的解存在的充分条件(即相容性条件),且当该条件满足或网格点内部顶点度数全为... 研究了任意拓扑网格上G^2插值曲面的构造解,必要时将任意拓扑网格剖分,使得每个面均为矩形片(或三角片)。对网格内部顶点度数N≠3,4,6,给出了仅与网格拓扑有关的解存在的充分条件(即相容性条件),且当该条件满足或网格点内部顶点度数全为N(N为3,4,6三数之一)时,用分片双7次(或8次三角域)Bezier片构造了可插值N结点的顶点位置、法向及曲率的整体G^2连续曲面。 展开更多
关键词 Bezier曲面 拓扑网络 G^2连续曲面 插值 CAGD
下载PDF
Reconstruction from contour lines based on bi-cubic Bézier spline surface 被引量:1
2
作者 LI Zhong MA Li-zhuang +1 位作者 TAN Wu-zheng ZHAO Ming-xi 《Journal of Zhejiang University-Science A(Applied Physics & Engineering)》 SCIE EI CAS CSCD 2006年第7期1241-1246,共6页
A novel reconstruction method from contours lines is provided. First, we use a simple method to get rid of redundant points on every contour, then we interpolate them by using cubic Bézier spline curve. For corre... A novel reconstruction method from contours lines is provided. First, we use a simple method to get rid of redundant points on every contour, then we interpolate them by using cubic Bézier spline curve. For corresponding points of different con- tours, we interpolate them by the cubic Bézier spline curve too, so the whole surface can be reconstructed by the bi-cubic Bézier spline surface. The reconstructed surface is smooth because every Bézier surface is patched with G2 continuity, the reconstruction speed is fast because we can use the forward elimination and backward substitution method to solve the system of tridiagonal equations. We give some reconstruction examples at the end of this paper. Experiments showed that our method is applicable and effective. 展开更多
关键词 CONTOUR Surface reconstruction Bi-cubic Bézier surface G^2 continuity
下载PDF
上一页 1 下一页 到第
使用帮助 返回顶部