查询词典 triangulation

How to apply the triangulation principal being consist of outside triangulation and inside triangulation in the local increment triangulation algorithm is analyzed. A method of optimization while triangulation and a principal to judge whether the triangle is legal or not are established. Software design of this algorithm is done. At last, the calibrated result of field lens is presented.

采用了一种大规模散乱数据的空间划分方法及其相应的数据结构和编码方案，研究分析了在局部增量剖分算法中如何采用外连剖分和內连剖分相结合的剖分原则，确定了边剖分边优化和一种计算空间点到直线距离的简单方法来判断三角形是否合法的原则。

Based on the two features of the Delaunay triangulation:maximum and minimum feature,empty circumcircle feature,in this article the procedure of building triangulation network needs three steps:creating boundary,building up the interior triangulation network,coping with the hole between the boundary and the interior triangulation network.

基于Delaunay三角网划分的两个特性：最大最小特性与空外接圆特性，论文构网过程分三步：生成边界，构造内三角网，对边界与内三角网之间的空洞进行处理。

The spacing triangulation was achieved by restricting the angle between two adjacent triangle's normals, which can decrease or increase the data efficiently, varying with the surface's curvatures, added to the optimizing local triangulation, and uniform and smooth triangulation are obtained.

该方法从插值曲面的形状变化来考虑，根据空间离散点曲面的曲率变化有效地剔除或增加离散点，实现了离散点曲面的疏密三角网格划分。

Whether Zhou s triangulation would derive MWT of a planar point set, Zhou Peide had drawn a new conclusion before the comments "Zhou s Triangulation is not the minimum weight triangulation " were given.

周培德三角剖分是否能得到最小权三角剖分，周培德在《周培德三角部分不是最小权三角剖分》一文撰写之前已有新的结论，本文还指出《周培德三角剖分不是最小权三角部分》一文所举反例不成

Triangulation of a set of scattered points on a plane is obtained by a novel algorithm, which generates the convex hull of it in the process of triangulation according to the property that the boundary of triangulation meshes coincides with the convex hull of the set of points.

对于给定平面散乱点集的三角剖分，根据平面三角剖分网格外边界与点集凸包重合的性质，实现了点集凸包和三角网格的综合生成。

Considering the triangulation problem of 3D surface data set of 3DLCS, the thesis presents a multiresolution triangulation method to fit the raw scanning data set and another triangulation method of 3D scattered data set basing on 2D DT construction to fit 3D compressing data set.

对于3DLCS中的三维表面数据点集的三角形化问题，本文提出了针对原始扫描数据点集的多分辨率三角形化方法和针对三维压缩后数据点集的基于二维DT构造的三维散乱数据点集的三角形化方法。

We completed the theory and system researches of the 2D triangulation-based optical rang finding with dual lens,delivered the optics and electronics design for this system in detail,constructed the protype of real-time 2D triangulation-based optical rang finder and gave in-depth analysis and appropriate remedy on the triangulation ranging error.

完成了二维光学双镜头三角法测距的原理与系统研究；详细阐述了二维双镜头三角法测距系统的光学和电子学设计，研制了实时二维双镜头三角法测距系统样机，深入分析了系统测距误差来源并对其进行了修正。

Considering the triangulation algorithm based only on the determination of convex-concave vertices is restricted to simple polygons, this paper presents a triangulation algorithm for the general plane polygon GTP(General Triangulation of Polygons) based on determination of convex-concave vertices and connecting the outer border of a polygon with its inner borders.

摘 要：针对基于凹凸顶点判定的三角剖分算法适用范围有限的缺点，提出了将凹凸顶点判定与连接多边形内外边界相结合的适用任意平面多边形的三角剖分算法GTP(General Triangulation of Polygons)。

To the late 50s entered the computer photogrammetry, photogrammetry research areas has been greatly extended: If the analytical method aerial triangulation, on-line aerial triangulation, local area network adjustment, gross error detection theory, orthographic correction

到50年代末计算机开始进入摄影测量，摄影测量的研究领域得到了很大的扩展：如解析法空中三角测量、在线空中三角测量、区域网平差、粗差检测理论、正射纠正

In this paper, firstly, the embeddability of near-triangular graphs on the orientable surface is studied. By using Petersen's Theorem about 1-factor, we first prove that for a near-triangulation on the orientable surface, its geometry dual graph has a 1-factor; then after a procedure of operation leaded by the 1-factor, we show that if a graph G triangulates some orientable surface S_g, then G has a near-triangular embedding in S_h for h = g,g + 1,...,β(G/2」, where β is the Betti number of G. Hence we obtain a conclusion: A near-triangulation of the orientable surface is upper-embeddable. As a generalization, a class of near-quadrangulation is studied, and similar results are obtained.

本文首先研究了近三角剖分图的可定向曲面嵌入性质，通过运用Petersen关于1-因子的定理，首先证明了对于可定向曲面上的三角剖分图，其几何对偶图具有1-因子；然后在1-因子的导向下，通过做一系列增加亏格的手术，证明了如果一个图G三角剖分可定向曲面S_g，那么G可以近三角剖分可定向曲面S_h，这里h=g，g+1，…，「β(G／2」，β是指图G的Betti数，从而得出推论：可定向曲面上的三角剖分图是上可嵌入的，作为推广，又研究了一类近四角剖分图的可定向曲面嵌入性质，并得到类似的结论。

For the head-teacher of the class said that I had seriously broken the school rules,which led me to a three-day suspend class.

为什么呢？因为我的班主任说我严重的违反了校规，于是让我停课三天。

Many of them believe that the conversion of thousands of working-class folk in England spared that nation from the mass carnage and the tyranny that came with the revolution in France.

他们之中有许多人相信，在英国数以千计的劳工阶级之悔改信主使英国免於遭受如法国大革命所造成的大屠杀和专制暴政。