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,能够被等效...
4.Line Segment Intersection 众生平等 本文是对《Computational Geometry》-David M.Mount 的译文。 翻译过来的文章有个特点,就是和中文逻辑的风格不太搭,但考虑到自己也是刚刚自学,就不去追求完美了。 Geometric intersections 计算几何的基础问题之一就是计算几何体的交集。 2维或者3维几何体的相交计算应用非常广...
linesegment1.begin_ = p2; linesegment1.end_ = p3; Vector2 intersection =newVector2(0f,0f);switch(linesegment0.Intersect(linesegment1,outintersection)) {case0: output = intersection;returnfalse;case1: output = intersection;returnfalse;case2: output = intersection;returnfalse;case3: output =...
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... ...
网络释义 1. 线段求交 (3)线段求交(Line Segment intersection) (2 课时) 讲授求解“给定一个线段的集合,求出线段的所有交点”的问题的扫描线算法(Plan… www.docin.com|基于6个网页
Linesegmentintersection 1 2 IntersectingtwolinesegmentsLinesweepalgorithmConvexpolygonintersectionBooleanoperationsonpolygonsSubdivisionoverlayalgorithm 3 Familyofintersectionproblems 1.Linesegmentintersection:givennlinesegments,reporttheirintersectionsefficiently.Worstcase:k=n(n–1)/2=O(n2)...
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。。。
M. de Berg et al., "Line segment intersection," in Computational Geometry. Berlin, Germany: Springer, 1997, pp. 19-43.M. Berg, M. Kreveld, M. Overmars, and O. Schwarzkopf, "Chapter 2: Line Segment Intersection," Computational Geometry, Algorithms and Applications, second ed. Springer, ...
First I create a line segment by two points of boundingbox. The second line segment is created by two points of matrix. Than the intersection points are calculated, if they exist. The last step of my code is to check, if the found intersection point is on both line segments. So heres...
示例1: CircleIntersectSegment ▲点赞 9▼ publicstaticboolCircleIntersectSegment(LineSegment<Vector2> segment, Circle circle,outVector2 intersection){ intersection = ClosestPointOnSegment(segment, circle.Position);vardistance2 = DistanceSquared(intersection, circle.Position);if(distance2 <= circle.Radius ...