C. White Sheet There is a white sheet of paper lying on a rectangle table. The sheet is a rectangle with its sides parallel to the sides of the table. If you will take a look from above and assume that the bottom left corner of the table has coordina…

<?php $s = is_rect_intersect(1,2,1,2,4,5,0,3); var_dump($s); /* 如果两个矩形相交,那么矩形A B的中心点和矩形的边长是有一定关系的. Case 2345中,两个中心点间的距离肯定小于AB边长和的一半. Case 1中就像等了. 设A[x01,y01,x02,y02]  B[x11,y11,x12,y12]. 矩形A和矩形B物理中心点X方向的距离为Lx:abs( (x01+x02)/2 – (x11+x12) /2) 矩形A和矩形B物…

源代码 public bool JudgeRectangleIntersect(double RecAleftX, double RecAleftY, double RecArightX, double RecArightY, double RecBleftX, double RecBleftY, double RecBrightX, double RecBrightY) { bool isIntersect = false; try { double zx = getAbsluteValue(…

Given two rectangles, find if the given two rectangles overlap or not. A rectangle is denoted by providing the x and y co-ordinates of two points: the left top corner and the right bottom corner of the rectangle. Note that two rectangles sharing a si…

最近需要用到矩形相交算法的简单应用,所以特地拿一个很简单的算法出来供新手参考,为什么说是给新手的参考呢因为这个算法效率并不是很高,但是这个算法只有简简单单的三行.程序使用了两种方法来判断是否重叠/相交,如果有兴趣可以看一下,如果觉得有bug可以留言.代码仅供参考. C#中矩形的方法为Rectangl(起始点坐标, 矩形的大小)或Rectangl(起始点x坐标, 起始点y坐标, 矩形宽, 矩形高),起始点为矩形区域的左上角. 方法一 姑且叫做“井字法”吧,延长其中一个矩形的四边使其形成一“井”字(…

title author date CreateTime categories win10 uwp 求两个矩形相连的几何 lindexi 2018-12-24 20:51:49 +0800 2018-12-17 08:55:34 +0800 Win10 UWP 在写笔迹的过程,我需要做橡皮的功能,橡皮是一个矩形在移动,因为移动的过程是不连续的,需要将多个矩形组合为连续的几何 大概的做法就是连接两个矩形作为一个六边形或者一个大的矩形的方法,这个方法最简单是求闭包的方法 本文采用的坐标是左上角是 (…

http://acm.sdut.edu.cn:8080/vjudge/contest/view.action?cid=42#problem/D 改了N多次之后终于A了,一直在改判断正方形和矩形那,判断正方形时算出六条边再排序,若前四条边相等并且与后两条边满足勾股定理,说明是正方形, 判断矩形时,我先对结构体二级排序,这样四个点有确定的顺序,再用点积判断是否有三个角是直角,是的话就是矩形. #include<stdio.h> #include<string.h> #include&l…

Description Given a rectangle and a circle in the coordinate system(two edges of the rectangle are parallel with the X-axis, and the other two are parallel with the Y-axis), you have to tell if their borders intersect. Note: we call them intersect ev…

You can Solve a Geometry Problem too Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 6837 Accepted Submission(s): 3303 Problem Description Many geometry(几何)problems were designed in the ACM/ICPC. A…

题目链接:https://vjudge.net/problem/POJ-1410 题意:判断线段和矩形是否相交. 思路:注意这里的相交包括线段在矩形内,因此先判断线段与矩形的边是否相交,再判断线段的两端点是否在矩形内(因为是矩形,即凸多边形,直接用叉积判断即可,如果是一般的多边形,需要用射线法判断.) AC code: #include<cstdio> #include<algorithm> #include<cmath> #include<cstdlib>…