查询词典 Delaunay

This is a triangular network nodes algorithm, the efficiency is not high, for research purposes only reference.

这个是delaunay三角网的算法实现，程序效率不高，仅供研究参考。

In this paper, a method for fingerprint matching is proposed based on Delaunay triangulation in computational geometry.

将计算几何的三角划分方法引入指纹匹配，研究了一种基于DT网的指纹匹配方法。

In addition, a vector nozzle shape design method that couples viscous flow analysis, a complex method is described in this paper.

本文首先研究了二维非结构网格的生成方法，采用Delaunay三角化与阵面推进相结合的方法。

Some key algorithms were researched here: a "cut-and-sew" algorithm was presented here to resolve the reconstruction problem of adjacent section contour lines which different from shape and polygon vertex count; a random polygon triangulation algorithm based on CDT was studied to resolve the modeling problem of complex geological model with stones and holes inside; a grid-constraining algorithm of judging whether a point is in a polyhedron was studied here to construct the corresponding geological block model which constrained to wire frame model.

研究了构模过程中的若干关键算法：提出"切开-缝合"算法，解决了形状和顶点数目差异较大的相邻剖面轮廓线重构三维形体模型问题；研究了基于约束Delaunay三角剖分的任意多边形三角剖分算法，解决了含夹石或孔洞的复杂地质体构模问题；研究了判断点在多面体内的网格约束算法，以线框模型为约束构建了相应的地质块段体模型。

Data pre-processing technologies such as singular points elimination, registration and radius compensation are studied. Base on chord high difference algorithm, a new one called chord high difference-ratio algorithm is proposed to improve veracity and robusticity of singular points elimination. Then, a registration algorithm based on local surface reconstruction is proposed, which avoids infaust influence coming from single reference point error.

在弦高差法的基础上，提出了全新的弦高差—比法，提高了异常点剔除的准确性和柔韧性；提出了一种基于局部图形重构的重定位方法，该方法通过对特征球的最小二乘拟合，消除了单一参考点的精度对重定位的影响；在此基础上对重定位的误差进行了详细的分析，给出了精确的误差值，从数学的角度保证了重定位的精度；在三角网格法的基础上提出了基于Delaunay三角剖分的半径补偿新方法，有效改善了补偿矢量的计算效率和准确性。

With this method the time for grid generation is reduced and the number of slivery elements is much less than that generated by the conventional algorithm.

用测度距离修正了常规两点间距离的计算方法，实现了用Delaunay算法生成二维各向异性网格。

It is the best one of the surface morphology, and is commonly used to generate used to generate triangulated irregular network.

在所有可能的三角网中，Delaunay三角网在地形拟合方面表现最为出色，因此常常被用于不规则三角网的建模。

At first, the algorithm triangulates the boundary of the data, then encrypts the grid and builds equality triangle network, at last embeds the faults into the grid to complete triangulation.

该算法首先对数据边界进行初始Delaunay三角剖分，然后将其变尺度加密，生成较均匀三角网，最后将断层边界强行嵌入三角网，实现了三角网格化。

The thesis compares and analyses running rapidity, triangulating result, overlapping and hole of mesh and other performance index. The experiment results prove that the new arithmetic has some application value.

比较和分析了局部Delaunay 法、生长三角剖分算法和改进算法的运行速度、剖分效果、网格重叠和空洞等性能指标，证明改进算法有一定的应用价值。

During the development, interpolation, tracing of iso-points and smoothing isolines were adopted. The program building isolines of hydraulic head automatically was developed.

以Delaunay三角网为基础，利用等值点的插值、追踪，等值线的光滑处理等手段，开发了基于MapObject的地下水水位等值线图自动生成程序。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。