欢迎加群交流 QQ群 830426796 用 System.Drawing.Drawing2D.GraphicsPath 和 Region 类联合起来,然后用 Region.IsVisible(point) 函数,可以判断点是否在多边形区域内. System.Drawing.Drawing2D.GraphicsPath myGraphicsPath=new System.Drawing.Drawing2D.GraphicsPath(); Region myRegion=new Region();

用户体验包括三部分:用户研究.视觉设计和交互设计.按顺序进行,在用户研究和视觉设计之后,开始交互设计,Axure是最好的交互设计的软件. Vogue是著名的奢侈品品牌,网站设计“高大上”,用Axure来仿真Vogue,能够充分挖掘Axure的潜能. Vogure 网站首页具有四大功能:菜单,旋转木马,固定在右下方的导航和反馈窗口.下面简单介绍如何用Axure来实现这四个功能. 一.菜单, vogure有两级菜单,第一级如图一,显示在第一行. 图一 第二级菜单如下图二所示,当鼠标移到“鞋包”上时二

解读QML之四 QML对象属性 每一个QML对象类型都定义了一系列属性.每创建一个该对象类型的实例,该实例的这些属性也自动被创建了.接下来我们讨论几种不同类型的属性. id属性 每一个QML对象类型都有一个唯一确定的id属性.这个属性是由QML语言自身提供的,并且在QML对象类型中不能被重定义和重载. 我们必须为id属性指定一个值允许该对象被唯一标示并且可用于被其它对象引用.Id属性值必须以小写字母或者下划线开始,只能包含字母,数字和下划线等字符. 下面是一个TextInput对象和一个Text

PathView ,顾名思义,沿着特定的路径显示 Model 内的数据. Model 能够是 QML 内建的 ListModel . XmlListModel ,也能够是在 C++ 中实现的 QAbstractListModel 的派生类. PathView 恐怕是 Qt Quick 提供的 Model-View 类库中最复杂也最灵活的一个了. 要使用一个 PathView ,至少须要设置 model . delegate . path 三个属性. model . delegate 假设你学习过

"简洁是智慧的灵魂,冗长是肤浅的藻饰"------------------<哈姆莱特>莎士比亚 Import Statement: import QtQuick 2.5 Loader is used to dynamically load QML components. Loader can load a QML file (using the source property) or a Component object (using the sourceComponent

Given a 2D binary matrix filled with 0's and 1's, find the largest rectangle containing all ones and return its area. 此题是之前那道的Largest Rectangle in Histogram 直方图中最大的矩形 的扩展,这道题的二维矩阵每一层向上都可以看做一个直方图,输入矩阵有多少行,就可以形成多少个直方图,对每个直方图都调用Largest Rectangle in Hist

题目: Largest Rectangle in Histogram Given n non-negative integers representing the histogram's bar height where the width of each bar is 1, find the area of largest rectangle in the histogram. Above is a histogram where width of each bar is 1, given h

http://blog.csdn.net/abcbc/article/details/8943485 具体的题目描述为: Given n non-negative integers representing the histogram's bar height where the width of each bar is 1, find the area of largest rectangle in the histogram. Above is a histogram where width

首先上题目 Given n non-negative integers representing the histogram's bar height where the width of each bar is 1, find the area of largest rectangle in the histogram. For example,Given height = [2,1,5,6,2,3],return 10. 题目的大意即给出一个柱状图的歌数据,求柱状图内所包含的最大矩形. 这道

Largest Rectangle in Histogram Given n non-negative integers representing the histogram's bar height where the width of each bar is 1, find the area of largest rectangle in the histogram. Above is a histogram where width of each bar is 1, given heigh

E - Largest Rectangle in a Histogram Time Limit:1000MS     Memory Limit:32768KB     64bit IO Format:%I64d & %I64u Submit Status Practice HDU 1506 Appoint description: Description A histogram is a polygon composed of a sequence of rectangles aligned a

Given n non-negative integers representing the histogram's bar height where the width of each bar is 1, find the area of largest rectangle in the histogram. Above is a histogram where width of each bar is 1, given height = [2,1,5,6,2,3]. The largest

Intersection Time Limit: 1000MS   Memory Limit: 10000K Total Submissions: 9996   Accepted: 2632 Description You are to write a program that has to decide whether a given line segment intersects a given rectangle. An example: line: start point: (4,9) 

内存法通过把图像储存在内存中进行处理,效率大大高于GetPixel方法,安全性高于指针法. 笔者当初写图像处理的时候发现网上多是用GetPixel方法实现,提到内存法的时候也没有具体实现,所以笔者在这里具体实现一下- -,望指正. 首先讲一下用到的一些方法. 1.LockBits和UnlockBits:使用 LockBits 方法,可在系统内存中锁定现有的位图,以便通过编程方式进行更改,每调用LockBits之后都应该调用一次UnlockBits. 2.Scan0:图像的第一个字节地址. 3.S

当 PictureBox内的图片太大,超过PictureBox边框时可以用下面的方法来实现,   通过重绘来实现 :   Code bool wselected = false;  Point p = new Point(); private void pictureBox1_MouseDown(object sender, MouseEventArgs e)  {  wselected = true;  p.X = e.X;  p.Y = e.Y;  } int driftX = 0, dri

链接: https://leetcode.com/problems/maximal-rectangle/ [描述] Given a 2D binary matrix filled with '0's and '1's, find the largest rectangle containing all ones and return its area. [中文描述] 给一个二维数组, 算出里面最大的全1矩形面积,比如: [ ['1','1','1','0'], ['1','1','1','1']

原文:<Programming WPF>翻译 第3章 3.内嵌控件 WPF提供了一系列内嵌控件.其中大多数符合标准的你已经熟悉的Windows控件类型.注意到没有一个是包装在旧的Win32控件外面的控件.虽然它们看上去就像是它们的副本,它们都是与生俱来的WPF控件.这意味着它们为WPF在本书中描述的功能提供了完全的支持,包括样式.独立的分辨率.数据绑定.合成.以及充分的集成支持WPF的图形化能力. 3.3.1按钮 按钮是用户可以点击的控件.点击的结果由应有程序的开发者胜任,但是共同的期望依赖于

Given n non-negative integers representing the histogram's bar height where the width of each bar is 1, find the area of largest rectangle in the histogram. Above is a histogram where width of each bar is 1, given height = [2,1,5,6,2,3]. The largest

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

Given n non-negative integers representing the histogram's bar height where the width of each bar is 1, find the area of largest rectangle in the histogram. Above is a histogram where width of each bar is 1, given height = [2,1,5,6,2,3]. The largest

Given a non-empty 2D matrix matrix and an integer k, find the max sum of a rectangle in the matrix such that its sum is no larger than k. Example: Given matrix = [ [1, 0, 1], [0, -2, 3] ] k = 2 The answer is 2. Because the sum of rectangle [[0, 1], [