数据点集的英文

例句与用法

1. The main research works of the dissertation are as follows : 1 ) preprocessing technology of unorganized diserete points : the relative research works were focused on two issues : boundary extracting from unorganized discrete points and generating of original surface , boundary extracting were realized on the basis of rules that disctete points are on the form of triangular mesh and the number of neighbor triangle of border points and inner points are different
   论文的主要研究内容如下： 1 )离散数据点集的预处理技术研究了离散数据点的边界检测和初始曲面拟合问题。离散数据点的边界检测是根据有限元分析所得到的三角网格离散点，利用它的特点，使用离散点的相邻三角网格的个数判断是否是边界点。
2. Aiming at the existed problems in reverse engineering techniques concerning triangulation method for scattered data points , display technique of three dimension model based on mesh simplification , and redesign technique for re - constructed surface etc . , this paper studies and proposes the relevant solving schemes , key algorithms and realizing technologies . the chief contributions acquired by this paper include : ( 1 ) an effective 3d triangulation algorithm for scattered data points is put forward . this algorithm solves the problem that data points must be partitioned for multi - projection realized by traditional 2d triangulation methods , and can also triangulate the scattered data points of trimmed surface and concave boundary surface
   本文工作针对散乱点集的三角网格划分及优化、基于网格简化的真实感模型显示，以及重构曲面再设计等反求工程的关键技术中还存在的诸多问题，提出了相应的解决方案，并对关键算法和实现技术进行了深入研究，论文的主要成果包括： ( 1 )提出了一种有效的散乱数据点集的3d空间直接三角网格划分算法。
3. The constructed surface is c2 continuous on the whole domain , and is a piecewise cubic parametric polynomial on every subdomains . the interpolating surface can preserve the convexity , concavity , inflection property and monotonicity of the data set . in the end , each algorithm brought forward in the paper is exemplified , at the same time , error is discussed
   3针对保形曲面插值问题，提出了一种插值于给定数据点集的参数型保形曲面插值算法，所构造的曲面在整个区域上是c ~ 2连续的，在每个子区域上是分片三次参数多项式，并且保持被插函数集的所有子区域的边界及其内部的轴向单调性、凸凹性以及拐点性质。