| 1. | Proc . asian symposium on computer mathematics , gao x , wang d eds . , 与采用代数曲面拼接相区别,也有很多方法使用参数曲面来进行拼接。 |
| 2. | Algorithm for mixed meshing multiple trimmed parametric surfaces for finite element analysis 多个裁剪参数曲面的有限元混合网格剖分法 |
| 3. | Abstract : a semi - adaptive triangulation of parametrically defined surface is presented 文摘:提出了一种参数曲面的拟自适应三角化离散算法。 |
| 4. | Using the above algorithms , this thesis proposes two efficient algorithms for evaluating parametric surfaces 根据以上算法,本文提出了对参数曲面快速求值的两种新方法 |
| 5. | It presents a method for constructing the initial flattening guess of triangulated surface . by this method , parametric and polygonal surfaces could be flattened in a general way 该算法把全局参数化技术用于生成初始展平估计,从而实现了对参数曲面和多边形曲面的统一处理。 |
| 6. | The problems on parameterization of implicit algebraic surfaces and inversion of parametric surfaces are discussed and the inversion equations for some nurbs surfaces are derived in detail 探讨隐式曲面参数化及cad超曲面重构技术研究及其应用参数曲面反演问题,具体导出了一些nurbs曲面的反演方程。 |
| 7. | The coordinates of 3d data points are calculated by binocular sensor that is calibrated precisely . these points define a surface equation based on nurbs theory . it supplies interface to industry manufacture 采用了nurbs理论对数据点阵进行曲面插值,获得nurbs参数曲面方程,为工业自动化生产提供标准接口。 |
| 8. | 12 gao x , li m . construct piecewise hermite interpolation surface with blending methods . in proc . geometric modeling and processing : theory and applications , h . suzuki and r . martin eds . , 这是一种生成约束曲面的一般性方法,我们可以用它来把一个多边形模型转化成参数曲面,对3d物体进行形变,构造blending曲面及补n边洞等。 |
| 9. | This thesis , from different analytical points of view , proposes three algorithms for the minimum distances between convex nurbs surfaces and general nurbs surfaces respectively 本文从不同的分析角度,分别就凸曲面和一般曲面展开研究,给出了nurbs曲面间距离求解的几种算法,解决了最为复杂的两参数曲面间的最短距离求解问题。 |
| 10. | ( 2 ) intersectioning algorithm of nurbs surface and general implicit surface is researched in which the parametric formula are substituted into the implicit surface equation and then get the nonlinear two - dimensional equation on parametric domain ( 2 )实现了nurbs参数曲面与广义的隐式曲面的求交算法并将其应用于船体曲面与水线面的求交中。 |