This method has greatly shortened the interpolation time of parametric surfaces and obviously...
该方法大大缩短了参数曲面实时插补的时间，明显提高了插补的效率。
NURBS surfaces are among the most commonly used parametric surfaces in CAGD and Computer Graphics.
NURBS曲面是计算机辅助几何设计和计算机图形中最常用的参数曲面。
In this paper, we present a novel parametric surfaces intersection algorithm based on discrete surfels.
提出一种基于逆向工程技术建立髋臼软骨参数化曲面模型的新方法。
According to topological structure of control mesh, we generate generalized rational parametric surfaces in two manners.
对于广义有理参数曲面，根据控制网格的拓扑结构，我们分成两种情况来考虑。
The fast point-by-point algorithm for generating rational parametric surfaces has important application in computer graphics.
有理参数多项式曲面的快速逐点生成算法在计算机图形学中有重要的应用。
The input parametric surfaces are discrete, then we will get new surfaces with bicubic parameter spline function and build uniform workpiece model.
对于参数曲面，采用先离散，再重新拟合的处理方法，建立统一的双三次参数样条曲面通用工件模型。
A marching method for intersection is a common using algorithm for solving intersection of parametric surfaces, as well as that of discrete surfaces.
跟踪求交是参数曲面求交常用的算法，而对于离散化的曲面也可以采用类似的方法。
Implicit surfaces are different from parametric surfaces in creation, modification and visualization, and have different properties and applications.
隐式曲面与参数曲面相比在创建、修改、可视化方面需要不同的技术，并且具有不同的性质及应用领域。
These two strategies can be further divided according to whether they operate by reconstructing parametric surfaces or by reconstructing implicit surfaces.
这些二个策略可能是更进一步依照他们是否借由重建参数的表面或借由重建暗示的表面操作分开。
On the above algorithm basis, according to theory of data structures, the intersection of any parametric surfaces is found and three-dimensional graphs are given.
在此算法的基础上，利用数据结构的理论，实现了任意参数曲面的求交及拼合，并绘出了相应的三维视图。
In this method, the laminated shell structure is divided into patches and represented by parametric surfaces that are connected in boundary according to C0 continuity.
该方法首先将壳体结构的参考曲面进行分片处理，利用参数曲面来描述分片的壳体参考曲面并将分片按照C 0连续性进行拼接。
B-Spline curves and curve surfaces are the most commonly used parametric curves and surfaces in Computer Graphics.
样条曲线曲面是在计算机图形学中应用最广泛的参数曲线曲面类型。
Therefore, generating a Parametric G n Blending Surface between two base surfaces is translated into generating a Parametric G n Blending Surface between the two reparameterized local base surfaces.
这样将两基曲面间构造过渡曲面的问题转化为在重新参数化局部基曲面间构造过渡曲面。
Among the modeling methods used in the CAD parametric curves and surfaces, the technique of blending curves and surfaces is being wildly study.
在CAD参数曲线曲面造型方法中，混合曲线曲面技术正被广泛研究，本文分两大部分。
However, due to the advantages of implicit curves and surfaces which the parametric curves and surfaces don't have, sometime we need to use the implicit form of a rational curves and surfaces.
然而由于曲线曲面的隐式形式具有参数形式所不具有的优点，有时我们还需要求参数曲线曲面的隐式表达式。
Based on the triangulation of parametric surface, a new method of tool path generation for complicated multi surfaces is presented.
提出了一种基于参数曲面三角化的复杂曲面刀具轨迹生成方法。
It introduced imitating surfaces with bicubic parametric curves, feed length, cutter location and vector of cutter location.
介绍用双三次参数曲线拟合曲面、平头铣刀的直径、铣削的步长及行距选择、刀位点和刀轴矢量的计算。
An algorithm which can draw any complex surfaces expressed by explicit equation or parametric equation was given.
提出了显式方程和参数方程表示的曲面的一种绘制算法，该算法可以绘制任意复杂的方程曲面。
A method is proposed for NC machining of extended parametric compound surfaces composed of NURBS and analytic ones.
提出了一种由NURBS曲面及解析曲面元素构成的组合曲面数控加工无干涉刀具路径的生成方法。
In this paper we derive the formula for computing the envelope of a bi-parametric family of surfaces, when they are expressed in parameters.
本文导出了双参数曲面族用参数形式表示时包络面的计算公式。
In this paper we derive the formula for computing the envelope of a bi-parametric family of surfaces, when they are expressed in parameters.
本文导出了双参数曲面族用参数形式表示时包络面的计算公式。
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