查询词典 Delaunay

The reason why the model is based on Voronoi diagram and Delaunay triangulation is that one of the main factors of directional relationships is visible field of two objects, and the visible field is adjacent part of two object, so direction calculation of two objects may be limited in the adjacent field.

模型的建立之所以借助于Delaunay三角网和Voronoi图建立空间方向关系计算和描述模型，是因为决定两目标之间的空间方向关系的主要因素之一是这两个目标之间的可视区域，而可视区域恰好是它们的邻近区域，因而两目标的空间方向计算问题可以归结为目标间邻近区域内的问题。

Spatial relationship; Polygon; Delaunay triangular net; Closest distance; Restricted circle

空间关系；多边形；Delaunay三角网；最近距离；约束圆

This paper emploies a collection of discrete and limit topological events which simulates topological changes of Delaunay diagrams,the dual graph of Voronoi diagrams,to realize maintaining Voronoi diagrams of moving points.

通过一组离散的，有限的事件序列对其对偶图Delaunay图拓扑改变过程的模拟来实现对移动点Voronoi图拓扑结构的维护。

In the paper, DEM is constructed through the way of constructing Delaunay triangulation on the ellipsoidal surface.

本文采用在椭球面上建立Delaunay三角网的方法来建立数字高程模型。

This paper presents a novel triangulation algorithm based on the normal information of the surface and the Delaunay triangulation algorithm.

借助于曲面上的法矢信息和三维Delaunay三角剖分算法，该文给出了一种新的散乱点三角剖分算法。

Furthermore, the paper presents a line oriented locating algorithm for fast locating triangles, which has the advantage of unique path and steady operation compared with other locating algorithms.2 Applying the theory of Constraint Delaunay Triangulation, the paper propounds the dynamical algorithm for constructing CDT, which insist that the constraint segments be inserted into the triangulation as soon as possible on the condition that they have been known already.

同时提出了快速定位三角形的直线方向定位算法，该算法与一般方向定位算法相比，具有搜索路径唯一，运行稳健的特点。 2应用约束Delaunay三角网理论，提出了构建CDT的动态算法，提出在约束条件已知的情况下，应尽早嵌入约束边。与传统构建CDT的"两步法"相比，具有速度快，点集可以动态扩充的优点。

First, based on the criterion of Delaunay triangulation for the plane scattered points set, the article proposes the general triangulation for arbitrary scattered points in plane domain.

基于平面区域内散乱点的Delaunay三角剖分准则，本文提出一种适用于平面区域内任意散乱点的通用三角化算法。

The paper presents an algorithm of building Delaunay triangulation of scattered point set.

该文提出了一种针对散乱点集的快速构建Delaunay的算法。

Besides, Delaunay triangulation and the deletion of some edges help identify the topology of the scattered point set.

此外，该算法通过删除数据点集的Delaunay三角化网格中长度大于采样密度的边，自动识别出数据点集的拓扑结构。

With respect to the 3D modeling, the Delaunay Triangulation constructing method of 2D scattered data set is discussed firstly. The triangulation method of 3D surface data set of 3DLCS is analyzed by basing on the DT constructing problem of 2D scattered data set.

在三维构型方面，本文首先论述了二维散乱数据点集的Delaunay三角形化构造方法，然后以此为基础分析了3DLCS中的三维表面数据集的三角形化方法。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。