This thesis studies the problems of geometric continuity in nurbs surfaces reconstruction 本文研究nurbs曲面重构中的几何连续性问题。
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Geometry continuity of the triangular facets is analyzed in the course of generating stl files . the index relation is built up between every triangular facet by making use of this continuity 通过分析stl转化过程中三角形面片之间的几何连续性，应用其连续性，使得各个三角形之间建立一种索引关系。
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The aims of this thesis are researching some typical nurbs surfaces " geometric continuous conditions and pointing out the effects of knot vector and the degree of surface on geometric continuities 本文的目的是研究一些典型的nurbs曲面的几何连续条件，指出节点向量和曲面片的次数对几何连续性的影响。
