Delaunay Triangulation in OpenCascade eryar@163.com 摘要:本文简要介绍了Delaunay三角剖分的基础理论,并使用OpenCascade的三角剖分算法将边界BRep表示的几何体进行三角离散化后在OpenSceneGraph中显示. 关键字:Delaunay Triangulation.OpenCascade.OpenSceneGraph 一. 概述 三角剖分是平面剖分中的一个重要课题,在数字图像处理.计算机三维曲面造型.有限元计算.逆向工程等领…

OpenCASCADE BRepMesh - 2D Delaunay Triangulation eryar@163.com Abstract. OpenCASCADE package BRepMesh can compute the Delaunay’s triangulation with the algorithm of Watson. It can be used for 2d plane or on surface by meshing in UV parametric space.…

https://github.com/Bl4ckb0ne/delaunay-triangulation…

1,先花个圆: detail模式执行. #define XY 0x00 #define XZ 0x01 #define YZ 0x02 #define pi 3.1415926 #define close 0x01 #define unclose 0x00 vector center = {,,}; ; void drawCicle(vector center;float r;int segments;int PLANE;int isClose) { ;i<segments;i++) { if(…

OpenCASCADE PCurve of Topological Face eryar@163.com Abstract. OpenCASCADE provides a class BRepBuilderAPI_MakeFace to build topological faces. A face maybe built from a surface, elementary surface from gp package, surface from Geom, from a wire and…

Visualize Surface by Delaunay Triangulator eryar@163.com Abstract. Delaunay Triangulation is the core algorithm for mesh generation. By Delaunay Triangulator you can make a general method to visualize geometry surfaces, so does OpenCascade. The paper…

Mesh Algorithm in OpenCascade eryar@163.com Abstract. Rendering a generic surface is a two steps process: first, computing the points that will form the mesh of the surface and then, send this mesh to 3D API. Use the Triangle to triangulate the param…

Triangle - Delaunay Triangulator  eryar@163.com Abstract. Triangle is a 2D quality mesh generator and Delaunay triangulator. Triangle was created as part of the Quake project in the school of Computer Science at Carnegie Mellon University by Jonathan…

从这个博客转载 http://blog.csdn.net/raby_gyl/article/details/17409717 请其它同学转载时注明原始文章的出处! Delaunay三角剖分是1934年发明的将空间点连接为三角形.使得全部三角形中最小角最大的一个技术. 假设你熟悉计算机图形学,你便会知道Delaunay三角剖分是变现三维形状的基础.假设我们在三维空间渲染一个,我们能够通过这个物体的投影来建立二维视觉图,并用二维Delaunay三角剖分来分析识别该物体,或者将它与实物相比較.Dela…

Triangle 一个二维高质量网格(mesh)生成器和Delaunay三角化工具. PSLG(Planar Straight Line Graph)约束Delaunay三角网(CDT)与Delaunay三角网相似, 除了PSLG线段在CDT中表示为一条边. .poly文件格式 First line: <# of vertices> <dimension (must be 2)> <# of attributes> <# of boundary markers (…

EasyMesh - A Two-Dimensional Quality Mesh Generator eryar@163.com Abstract. EasyMesh is developed by Bojan Niceno, it is a two-dimensional quality mesh generator. EasyMesh can generate two dimensional, unstructured, Delaunay and constrained Delaunay…

简介 项目代码https://github.com/LiuRoy/pokerface 原文链接http://www.cnblogs.com/lrysjtu/p/5492547.html 写这个项目的本来目的是通过构建一个神经网络来训练人脸图片,最后达到能根据图片自动判断美丑的效果.可能是因为数据集过小,或者自己参数一直没有调正确,无论我用人脸关键点训练还是卷积神经网络训练,最后都没有得到任何效果.为了不让自己前期写的代码变成无用代码,就参考网上的一些资料写了一份平均脸生成代码,感觉也还挺有意思的…

Visulalize Boost Voronoi in OpenSceneGraph eryar@163.com Abstract. One of the important features of the boost polygon library is the implementation of the generic sweepline algorithm to construct Voronoi diagrams of points and linear segments in 2D(d…

Visulalization Voronoi in OpenSceneGraph eryar@163.com Abstract. In mathematics a Voronoi diagram is a way of dividing space into a number of regions. A set of points, called seeds, sites, or generators is specified beforehand and for each seed there…

Xiang Bai--[arXiv2016]Scene Text Detection via Holistic, Multi-Channel Prediction 目录 作者和相关链接 方法概括 创新点和贡献 方法细节 实验结果 问题讨论 总结与收获点 参考文献 作者和相关链接 作者 白翔个人主页 论文下载 方法概括  Step 1: 用修改版的hed(参考文献1)得到text region map(binary), character map(binary), linking orientat…

Computer Graphics Research Software Helping you avoid re-inventing the wheel since 2009! Last updated December 5, 2012.Try searching this page for keywords like 'segmentation' or 'PLY'.If you would like to contribute links, please e-mail them to rms@…

Computational Geometry The Geometry Center (UIUC) Computational Geometry Pages (UIUC) Geometry in Action (UIC) Geometric Resource (UFL) CAGD Applets (UKA) Voronoi/Delaunay Applet (CornellUniversity) Directory of Computational Geometry Software (Dr. N…

Research Code A rational methodology for lossy compression - REWIC is a software-based implementation of a a rational system for progressive transmission which, in absence of a priori knowledge about regions of interest, choose at any truncation time…

PS. 因为csdn博客文章长度有限制,本文有部分内容被截掉了.在OpenCV中文站点的wiki上有可读性更好.而且是完整的版本号,欢迎浏览. OpenCV Wiki :<OpenCV 编程简单介绍(矩阵/图像/视频的基本读写操作)> Introduction to programming with OpenCV OpenCV编程简单介绍 Gady Agam Department of Computer Science January 27, 2006 Illinois Institute o…

Over the years, I have collected, modified, adapted, adopted or created a number of software packages in FORTRAN. You might be able to use one of these libraries, or a routine or two from a library. The packages are at different levels of completion.…

管理操作函数 AddGeometryColumn - Adds a geometry column to an existing table of attributes. By default uses type modifier to define rather than constraints. Pass in false for use_typmod to get old check constraint based behavior DropGeometryColumn - Remove…

 清华梦的诞生 小时候,妈妈给我一个梦.她指着一个大哥哥的照片对我说,这是爸爸的学生,他考上了清华大学,他是我们中学的骄傲.长大后,你也要进入清华大学读书,为我们家争光.我不知道清华是什么样子,但是我知道爱迪生和牛顿的故事.清华,大概就是可以把我造就成他们这种人的地方吧.我幼小的脑海里就想象出我能在清华做的事情--我的脸上浮现出笑容.我说我要实现这个"清华梦".这就是清华梦的诞生.     小小科学家 我相信每个人在小时候都跟我差不多,对这个世界充满了好奇.      鲁迅有他的百草园…

%例一:二维三角网TIN模型的生成 X=rand(10,2)*5; dt=DelaunayTri(X(:,1),X(:,2));       %生成三角网 triplot(dt);hold on;                 %绘图 scatter(X(:,1),X(:,2),'o'),hold off  %将结点展示出来(散点)   %例二:三维TIN的生成(由规则点生成) [x,y]=meshgrid(1:15,1:15);z=peaks(15); tri=delaunay(x,y); …

Overview Image viewer is a typical application for large display. It makes use of the high-resolution large display and lead to more efficient way for viewing images. Image viewer utilizes the output of the calibration phase (geometric result file an…

这篇论文提出了一种新的局部描述子学习方法,有一些点值得学习,记录下来以供参考.文章中涉及了一些3D reconstruction.structure from 的知识,不是很了解,所以理解可能有偏颇. 一.介绍 基于网络学习的局部描述子在patch-based benchmark取得了很好的结果,但是在最近image-based 3D reconstruction的benchmarks上面没有得到泛化性能的验证.所以作者提出一种描述子学习方法,可以受益于数据生成,数据采样,以及损失函数.这三点一…

清华梦的诞生 小时候,妈妈给我一个梦.她指着一个大哥哥的照片对我说,这是爸爸的学生,他考上了清华大学,他是我们中学的骄傲.长大后,你也要进入清华大学读书,为我们家争光.我不知道清华是什么样子,但是我知道爱迪生和牛顿的故事.清华,大概就是可以把我造就成他们这种人的地方吧.我幼小的脑海里就想象出我能在清华做的事情……我的脸上浮现出笑容.我说我要实现这个“清华梦”.这就是清华梦的诞生. 小小科学家 我相信每个人在小时候都跟我差不多,对这个世界充满了好奇. 鲁迅有他的百草园,我也有我自己的"实验田&qu…

前言 最近project中有关于delaunay的实现问题,查找资料,看到learnopencv这个网站,有很多peoject的实现,本文主要是实现Delaunay Triangulation and Voronoi Diagram using OpenCV这个project,基于Python实现的. 环境 系统环境:win7_64 python版本:python3.5.2 实现过程 1.下载代码和依赖的资源: Satya Mallick的Github github上列出了learnopencv…

1 Introduction CGAL, the Computational Geometry Algorithms Library, is written in C++ and consists of three major parts. The first part is the kernel, which consists of constant-size non-modifiable geometric primitive objects and operations on these…

PoPo数据可视化 聚焦于Web数据可视化领域, 发现前端可视化领域有意思的内容. 涵盖前端可视化领域最新资讯, 开源可视化库的发布更新消息, 可视化案例分析与讲解, 可视化技术文章, 可视化大神的日常, 可视化八卦等等...不想错过前端可视化领域的精彩内容, 就快快关注我们吧 :) 行业  DataHunte获Ventech China千万级A轮融资,致力于数据可视化分析 8月31日消息,近日,业务数据协作平台DataHunter宣布完成千万级人民币A轮融资,由Ventech China独家投…

http://doc.cgal.org/latest/Surface_reconstruction_points_3/ The following example reads a point set, creates a Poisson implicit function and reconstructs a surface. File Surface_reconstruction_points_3/poisson_reconstruction_example.cpp #include <CGA…