上述示例代码演示了如何使用CGAL库进行2D alpha形状剩余三角形提取。首先,我们创建了一个点集,并使用Delaunay三角剖分算法创建了一个三角剖分。然后,我们使用Alpha_shape_2算法创建了alpha形状,并设置了alpha值。最后,我们通过get_alpha_shape_facets函数提取了剩余三角形,并输出了结果。 腾讯云相关产品:由于要求...
// Check if all three vertices of the triangle are inside the Alpha Shape const bool areAllVerticesInAlphaShape = (alphaShape2d.classify(p1) != AlphaShape2d::EXTERIOR) && (alphaShape2d.classify(p2) != AlphaShape2d::EXTERIOR) && (alphaShape2d.classify(p3) != AlphaShape2d::EXTERIOR); if...
二维2D Alpha Shapes 假设有一组二维或三维的点,我们希望得到"这些点形成的形状"。这是相当模糊的概念,有许多可能的解释,α-shape是其中之一。Alpha形状可用于从密集的无组织数据点集进行形状重建。事实上,α-shape划定的边界,这是一个线性近似的原始形状。 这个包提供了一个数据结构,它编码了与给定的2D Delaunay或...
这个包提供了一个数据结构,它编码了与给定的2D Delaunay或规则三角剖分相关的所有alpha复合体。特别是该数据结构允许检索任意alpha值的alpha复合体、关键alpha值的整个频谱以及三角剖分面上的筛选。 三维3D Alpha Shapes 这个包提供了一个数据结构,可以编码一个字母复合体,也可以编码与给定的3D Delaunay或规则三角剖分...
CGAL安装 (7条消息) [CGAL] CGAL-5.2.1的安装与编译(Win10+vs2019+CGAL-5.2.1)_jialong_chen的博客-CSDN博客_cgal 安装 CGAL CGAL 5.4 - Manual: Package Overview 2D Alpha Shapes CGAL 5.4 - Manual: Package Overview CGAL 5.4 - Shape Regularization: User Manual...
(surface mesh simplification, subdivision and parameterization, as well as estimation of local differential properties, and approximation of ridges and umbilics), alpha shapes, convex hull algorithms(in 2D, 3D and interpolation and placement of streamlines), shape analysis, fitting, and distances(...
(surface mesh simplification, subdivision and parameterization, as well as estimation of local differential properties, and approximation of ridges and umbilics), alpha shapes, convex hull algorithms(in 2D, 3D and interpolation and placement of streamlines), shape analysis, fitting, and distances(...
解决方法,如:求解2D/3D数据点的凸壳、2D/3DDelaunay三角 化、求解Alpha图、求解Voronoi图及Apollonius图几何优化、空 间搜索等等。本文就是利用CGAL完成其中第一步,即求取点云 中点与点之间的邻接关系。 2CGAL介绍 CGAL(ComputationalGeometryAlgorithmsLibrary)是一个用 C++语言写成的关于计算几何中主要算法及数据结构...
differential properties, and approximation of ridges and umbilics), alpha shapes, convex hull algorithms (in 2D, 3D and dD), search structures (kd trees for nearest neighbor search, and range and segment trees), interpolation (natural neighbor interpolation and placement of streamlines), shape ana...
differential properties, and approximation of ridges and umbilics),alpha shapes,convex hull algorithms(in 2D, 3D and dD),search structures(kd trees for nearest neighbor search, and range and segment trees),interpolation(natural neighbor interpolation and placement of streamlines),shape analysis, ...