| 摘要: |
| 本文通过对ＮＵＲＢＳ造型方法技术的研究，在自主开发的ＳｕｐｅｒＭａｎＣＡＤ／ＣＡＭ集成系统中成功地实现了基于复杂曲线的ＮＵＲＢＳ双向蒙皮曲面的造型功能，从而建立了完全基于ＮＵＲＢＳ方法的ＣＡＤ／ＣＡＭ系统．通过大量的工程应用和实例验证表明所研究的ＮＵＲＢＳ方法是一种适用于复杂外形产品设计与制造的、灵活有效的造型方法． |
| 关键词: NURBS 双向蒙皮曲面 节点插入 升阶 |
| DOI： |
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| 基金项目:本文研究得到国家自然科学基金和国家教委博士点基金资助. |
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| PARALLEL ALGORITHMS FOR FINDING CYCLES IN UNDIRECTED GRAPHS |
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ZHANG Lenian,ZHOU Laishui,ZHOU Rurong
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| Abstract: |
| By researching on NURBS modelling method, the authors have successfully realized a new modeling function in NURBS bi skinning surface via complex curves on SuperMan CAD/CAM integrated system, and a CAD/CAM system which is full based on NURBS method is set up. It is proved by the various examples coming from engineering application that the new NURBS method is a flexible and effective method, which is suitable for production designing and manufaction with complex external forms. |
| Key words: NURBS bi skinning surface inserting knot degree elevation. |
