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Delaunay三角网作为一种主要的DTM表尔法,具有权其广泛的用途。经过二十多年来的研究,它的生成算法巳趋于成熟。本文简要介绍了Delaunay三角网的定又及其特性,在简单回顾和评价了分割—归并法,逐点插入法,三角冈生长法等三类主沈算法的基础上,提出了一个融以上算法优点于一体,兼顾空间与时间性能的合成算法。经测试,一般情况下它的运算速度远快于逐点插入法,与分割—归并法相当,较好的情况下快于分割—归并法。-Delaunay Triangulation as a major DTM Fall ta
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在vc++里根据生长算法完成delaunay三角网的构建.其中点是自己随机点上的.-in line with the growth algorithm Delaunay triangulation Construction. Which is their point of random.
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直接在VC试图上描点,对所获得的点集用Delaunay算法进行三角剖分。,Directly in the VC-point attempt on the depiction of the point set obtained by using Delaunay triangulation algorithm.
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在VS2008和opencv下,对2D/3D点(云)数据实现三角剖分,运算速度快,实时性好,计算精度高,并对三角剖分进行了优化,可以处理复杂点集的三角剖分,可以用于人脸识别的工作-In the VS2008 and opencv, the pairs of 2D/3D points (cloud) data to achieve triangulation, calculation speed, real-time performance is good, high precision, and
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对于给定的初始点集P,有多种三角网剖分方式,其中Delaunay三角网具有以下特征:
1、Delaunay三角网是唯一的;
2、三角网的外边界构成了点集P的凸多边形“外壳”;
3、没有任何点在三角形的外接圆内部,反之,如果一个三角网满足此条件,那么它就是Delaunay三角网。
4、如果将三角网中的每个三角形的最小角进行升序排列,则Delaunay三角网的排列得到的数值最大,从这个意义上讲,Delaunay三角网是“最接近于规则化的“的三角网。-For given
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无线传感器网络APIT算法协议修改于实现-APIT algorithm for wireless sensor networks to achieve agreement to amend
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针对平面内不相交的点或圆,根据三角剖分的原理,生成VORONOI图-For the plane does not intersect the point or circle, in accordance with the principles of triangulation to generate VORONOI map
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在测绘或地图学中,经常会需要用高程点生成DEM,一般首先由这些点按最小原则生成三角网,此代码即是根据任意多个点生成Delaunay三角网功能。-In the mapping or cartography often elevation point will need to generate DEM, generally the first point from these principles by the smallest triangulation generated, the code t
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this a visual c + + code for point cloud triangulation, i tried it and it works really in a very good way -this is a visual c++ code for point cloud triangulation, i tried it and it works really in a very good way
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BMyCrust take as input a 3D scatter points cloud and return a tight, manifold, triangulation.
Remember that crust algorithm needs a cloud representing a volume, so open surface may give inaccurate results. For example : a plane can not be triang
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南方CASS软件中只能采用数据批量生成断面里程文件,而工作中往往需要对三角网进行修改以便更加符合实际地形。而CASS中没有根据三角网批量生成断面里程的功能,只能一条一条的切出来,工作量十分巨大。以小野的工作来看,在包含几十万个三角网的CAD图形中根据三角网单独切断面,每条断面里程文件的生成需要约十秒左右的时间,不仅工作量巨大,而且十分考验人的耐心和细致。终于,有一天小野忍受不了那个速度,就写下了这个小程序。因为仅是为了实际工作需要,所以没有花时间去做界面。经测试,125361个三角形构成的三角网
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C++ 实现点云数据网格,网格数据的滤波处理!-Triangulation of point clouds and mesh filter in C++
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Delaunay三角剖分算法 . 一个非常强劲的VC编的Delaunay三角网生成算法,对您学习VC++或GIS的学习都有很好的帮助作用-In mathematics, and computational geometry, a Delaunay triangulation for a set P of points in the plane is a triangulation DT(P) such that no point in P is inside the circumcircle o
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This tool is a simplification of the ballpivoting algorithm. It imagines a bella eating a delaunay traignulation in order to extract a manifold surface.
It requires a single parameter: radius of the fretting ball.
Ball Fretting
Given a unif
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在三角剖分种去掉内环,需要判断点、线段、三角形与多变形的关系。这个模块提供这样的功能。-Species in the triangulation to remove the inner ring, you need to determine the point, line, triangle and polygon of relationships. This module provides this functionality.
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插点法基于B-W算法的deluany 三角剖分c++程序。我已经在visual studio 2008下编译成功运行,附带有点集文件nodes.unv。下载后可以直接在visual studio 2008下打开查看代码编译运行,有详细的代码注释,节省不必要的时间。-Interpolated point method algorithm based on BW deluany triangulation c++ program. I have compiled in Visual Studio 2
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Qhull computes the convex hull, Delaunay triangulation, Voronoi diagram, halfspace intersection about a point, furthest-site Delaunay triangulation, and furthest-site Voronoi diagram. The source code runs in 2-d, 3-d, 4-d, and higher dimensions. Qhul
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平面点集的Delaunay三角剖分。为了验证Delaunay三角剖分的正确性,系统提供了“圆测试”的功能,供用户对生成的三角形进行测试验证;为了验证DCEL数据结构的正确性,系统提供了“DCEL测试”的功能,用户输入任意一条测试线,系统将先后显示出测试线贯穿过的三角形;为了形象显示三角剖分的分治过程,系统提供了动态显示分治剖分过程。 -Planar point set Delaunay triangulation. In order to verify the correctness of De
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delaunary三角剖分,在数据点较小的情况下,运行结果还算客观,但是数据点大于五万时,运行较慢。-Delaunary triangulation, data point in the case of small, the operation results is objective, but the data points is greater than fifty thousand, is running slower.
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delaunary三角剖分,在数据点较小的情况下,运行结果还算客观,但是数据点大于五万时,运行较慢。-Delaunary triangulation, data point in the case of small, the operation results is objective, but the data points is greater than fifty thousand, is running slower.
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