Line segment intersection 2d线段交叉计算 给定平面内的一组线段,求出这组线段相交的那些点。线段的数据结构是首尾的两个点。 显然,n个线段的交叉的点点个数最少0个,最多 C2n = O(n2) 个。 最简单的办法就是强行枚举所有可能,是个O (n2) 的算法,但这种方法在碰撞点很少的情况下不是很划算。所以其实是需...
很久以前我在4.Line Segment Intersection 写过线段碰撞的算法,前不久在代码里尝试实现的时候发现并没有那么容易,因为文章里是用2d的算法来描述的,但是游戏开发中通常线段是3d的。 周末无事又冒出一些处理3d的思路,这里记录一下。 语言我使用dotnet(个人比较熟悉)。 回顾一下算法: 计算两条线段交叉的点,能够被等...
core dump 定位segment fault错误思路:一般是使用gdb进行问题定位,gdb需要有core-dump文件。 方法: 设置core-dump文件大小,默认是0,ulimit -c unlimited,设置corefile的大小为不限制大小; 编译可执行程序时,需要加上-g选项,便于后期问题定位; 修改corefile的输出路径,新建一个/corefile文件夹,然后输入chmod... ...
Faster line segment intersection. In David Kirk, editor, Graphics Gems III , chapter 1.4, pages 199–202. Academic Press, Boston, MA, USA, 1992.Franklin Antonio. Faster line segment intersection. In David Kirk, editor, Graphics Gems III, chapter 1.4, pages 199-202. Academic Press, Boston,...
Wood: Rectilinear Line Segment Intersection, Layered Segment Trees and Dynamization, J. Algorithms , 3 , 1982, 160–176.V. K. Vaishnavi and D. Wood, "Rectilinear line segment intersection, layered segment trees and dynamization", J. Algorithms , vol. 2, pp. 160-176, 1982...
05_Line_Segment_Intersection_5-46_20170507205738是[双语字幕] Princeton University : Algorithms 算法 by Robert Sedgewick的第47集视频,该合集共计123集,视频收藏或关注UP主,及时了解更多相关视频内容。
Line Segment Intersection 普林斯顿大学算法课http://algs4.cs.princeton.edu/home/ 反正不管怎么写也没人看这里嘛。。。
Linesegmentintersection 1 2 IntersectingtwolinesegmentsLinesweepalgorithmConvexpolygonintersectionBooleanoperationsonpolygonsSubdivisionoverlayalgorithm 3 Familyofintersectionproblems 1.Linesegmentintersection:givennlinesegments,reporttheirintersectionsefficiently.Worstcase:k=n(n–1)/2=O(n2)...
Line segment intersection. In Computational Geometry: Algorithms and Ap- plications, chapter 2, pages 18-43. Springer-Verlag, 2000.De Berg, M.; van Kreveld, M.; Overmars, M.; Schwarzkopf, O. Line segment intersection. In Computational Geometry: Algorithms and Applications; Springer-Verlag: ...
O Line Segment Intersection O.1 Introduction In this lecture, I’ll talk about detecting line segment intersections. A line segment is the convex hull of two points, called the endpoints (or vertices) of the segment. We are given a set of n line segments, each ...