Input : A set S of planar points Output : A convex hull for S Step 1: If S contains no more than five points, use exhaustive searching to find the convex hull and return. Step 2: Find a median line perpendicular to the X-axis which divides S into SL and SR SL lies to the left of SR . Step 3: Recursively construct convex hulls for SL and SR. Denote these convex hulls by Hull(SL) and Hull(SR) respectively. Step 4: Apply the merging procedure to merge Hull(SL) and Hull(SR) together to form a convex hull. Time complexity: T(n) = 2T(n/2) + O(n) = O(n log n)
标签： contains Output convex planar
上传时间： 2017-02-19
上传用户：wyc199288
PowerPCB教程简介 欢迎使用 PowerPCB 教程。本教程描述了PADS-PowerPCB 的绝大部分功能 和特点，以及使用的各个过程，这些功能包括： · 基本操作 · 建立元件(Component) · 建立板子边框线(Board outline) · 输入网表(Netlist) · 设置设计规则(Design Rule) ·元件(Part)的布局(Placement) · 手工和交互的布线 · SPECCTRA全自动布线器(Route Engine) ·覆铜(Copper Pour) · 建立分隔/混合平面层(Split/mixed Plane) · Microsoft 的目标连接与嵌入(OLE)(Object Linking Embedding) · 可选择的装配选件(Assembly options) · 设计规则检查(Design Rule Check) · 反向标注(Back Annotation) · 绘图输出(Plot Output) 使用本教程后，你可以学到印制电路板设计和制造的许多基本知识。 你不必一次完成整个教程，如果在任何时候退出后，下次直接找到你要进入 的部分，继续学习本教程。 当你完成了本教程的学习后，可以参考在线帮助(On-line Help)以便得到更多 的信息。如果你需要附加的信息内容，你可以与PADS 在各地办事处或代理商取 得联系，以便得到更多的帮助。 欢迎使用PowerPCB进行PCB设计！
标签： PowerPCB PADS-PowerPCB 教程 分
上传时间： 2013-12-12
上传用户：caozhizhi
Create a Delaunay triangulation or Voronoi diagram by clicking points. Delaunay triangulations and Voronoi diagrams are among the most widely used data structures in the field of Computational Geometry. These are Java-oriented source codes.
标签： Delaunay triangulations triangulation clicking
上传时间： 2013-11-25
上传用户：zhaiye
pccard driver s3c2440.The S3C2440A offers outstanding features with its CPU core, a 16/32-bit ARM920T RISC processor designed by Advanced RISC Machines, Ltd. The ARM920T implements MMU, AMBA BUS, and Harvard cache architecture with separate 16KB instruction and 16KB data caches, each with an 8-word line length.
标签： outstanding S3C2440A features pccard
上传时间： 2013-12-24
上传用户：lizhen9880
ccsc-HTML帮助 PCB, PCM and PCH Overview Technical Support Directories File Formats Invoking the Command Line Compiler
标签： Directories ccsc-HTML Technical Overview
上传时间： 2014-01-11
上传用户：qoovoop
Written by Microsoft software legend Juval Lowy, Programming WCF Services is the authoritative introduction to Microsoft s new, and some say revolutionary, unified platform for developing service-oriented applications [SOA] on Windows. Relentlessly practical, the book delivers insight, not documentation, to teach developers what they need to know to build the next generation of SOAs.
标签： authoritative Programming Microsoft Services
上传时间： 2013-12-26
上传用户：Shaikh
This book is an introduction to Ada 95. It uses an example-driven approach which gradually develops small trivial programs into large case-study type programs. The main emphasis of this book is on maintenance problems, and using object-oriented technology to write maintainable, extensible programs. Program design is introduced throughout the book, with hypothetical maintenance scenarios used to shoe design shortcomings. and revise them to accomodate maintenance needs. Practical issues such as debugging programs are tackled, and important Ada features not found in other languages are dealt with practically and early on in the text. These include exception handling, user-defined types, procedures, functions, packages and child packages.
标签： example-driven introduction gradually approach
上传时间： 2014-01-12
上传用户：koulian
We obtained the energy transport velocity distribution for a three dimensional ideal cloak explicitly. Near the operation frequency, the energy transport velocity has rather peculiar distribution. The velocity along a line joining the origin of the cloak is a constant, while the velocity approaches zero at the inner boundary of the cloak. A ray pointing right into the origin of the cloak will experience abrupt changes of velocities when it impinges on the inner surface of the cloak. This peculiar distribution causes long time delays for beams passing through the ideal cloak within a geometric optics description.
标签： distribution dimensional transport obtained
上传时间： 2013-12-19
上传用户：zhliu007
This program demonstrates how to draw lines in a picture box using the GDI, controlling background color and line color. It also includes a simple animation using a timer.
标签： demonstrates controlling background program
上传时间： 2014-01-16
上传用户：小眼睛LSL
Microsoft Visual Basic developers have long clamored for complete objectoriented language support. Microsoft Visual Basic .NET supports all the features of an objectoriented language. In addition, the entire Microsoft .NET Framework, which includes the development support for Microsoft Windows applications, Web applications, Web services, graphics, and data access, is designed according to object-oriented principles. Developers who have a firm grasp of object-oriented principles will be the strongest .NET developers.
标签： objectoriented developers Microsoft clamored
上传时间： 2014-12-21
上传用户：shizhanincc
