polygon diamonds

PolygonJohn has been given a segment of lenght N, however he needs a polygon. In order to create a polygonHe has a cut given segment K times at random positions (uniformly distributed cuts). Now he has K + 1much shorter segments. What is the probability so he can assemble a polygon using all new segments?InputThe number of tests T (t≤1000) is given on the. RST line. T lines follow, each of them containsInte

It is known that V1.. VN is a set of Convex Polygon vertices with a disordered surround order. Steps: 1. in the plane, take any direction (any two points can be connected. If it is a 2D vertex, you can directly go to the X axis or Y axis) as the direction, find the vertices VZ and the secondary vertices Vy in this direction. 2. take the vzvy direction as the base Dir, And take VZ to the VX of other vertices (VX is V1... in VN, except for any poin

Today in the project there is a player attribute radar drawing requirements, when I put five dimensions corresponding to the number of points group into the Drawpoly function, appeared the following phenomenon, check for half a day, the online no related questions answered, I asked in the group, there is a big God said this is the dot of the array has coincident, so there will be such a problem , I tested the next, it is true, and then I made a judgment on the array, there is equal I gave him se

Lifting the stone Time Limit: 2000/1000 MS (Java/others) memory limit: 65536/32768 K (Java/Others)Total submission (s): 4373 accepted submission (s): 1803Problem descriptionthere are eclipsecret openings in the floor which are covered by a big heavy stone. when the stone is lifted up, a special mechanic detects this and activates initialize ONED arrows that are shot near the opening. the only possibility is to lift the stone very slowlyAnd carefully. the ACM team must connect a rope to the stone

How to obtain the skeleton line/axis from any Polygon After a period of research, there are several ways to obtain the skeleton line of a polygon: 1. The skeleton line can be obtained through the line of the circle center of the contour garden. This method is introduced in the Reference websiteHttp://www.mpi-sb.mpg.de /~ Shin/research/ccurve/node19.htmlReference CodeHttp://www.mpi-inf.mpg.de /~ Shin/jav

About unity implementing custom polygon Picture effects1. Create rawimageeditor Editor extension script (placed in Project Editor folder, not created)1 /*************************************************2 * Project name: Dynamic change Picture display edge number3 * Script Creator: Magic card4 * Script creation time: 2018.01.275 * Scripting feature: Rawimageeditor editor feature rewrite6 * ***********************************************/7 usingSystem.

　Recently learned computer graphics, wrote a polygon scan conversion algorithm, posted out to share; MFC is not too clear, mainly using the OnDraw function ... Please advise ... void Cpolyfillview::ondraw (cdc* pDC) { cpolyfilldoc* PDoc = GetDocument (); Assert_valid (PDOC); Todo:add Draw code for native const int pointnum=6; Polygon points. /define the structure body for active side table aet and

Low Poly is a lower precision model in 3D, which is used in graphic design because it is a low polygon portrait in portrait. Production process: First find a pair of pixels higher image, intercept the desired part. Then in PS according to portrait contour draw triangle and polygon combination, finished into the AI, and then use the pen to draw the vector grid with the hand-drawn graphics. Finally, fill in

Turn from: http://www.cnblogs.com/gis_gps/archive/2009/02/12/1389071.html Spare I. Background: How to determine whether a specified latitude and longitude point falls in a polygon region. Second, the Implementation Code (Delphi) TypeTmypoint = Packed recordx:double;y:double;End{*------------------------------------------------------------------------------Determines whether the specified latitude and longitude coordinate point falls within the speci

Turn from: http://blog.csdn.net/jiazimo/article/details/20922215 Determine if a callout point is in the polygon area [JavaScript] View plain copy/** * Calculate whether a point is in the polygon *@ param{object}pt marking Point * @param {Object}poly Polygon Array */ functionisinsidepolygon (pt,poly) { for (varc=false,i =-1,l=poly.length,j=l-1;++i

can be pieced together keenu Reeves photos to practice. First, respectively in the front window and side window view>image plane>import image, import two Keenu Reeves of the front and side view of the picture, as the two pictures are temporary internet to find, so can not be closely aligned control, So I was roughly as formerly viewed as the main picture, while the side view of the picture supplemented, side-view of the picture used as a reference to the character's face characteristics (suppo

Usually when you slice out the output of the page, generally use the common slicing tool for output. But if you encounter a lot of navigation, slicing overlap, with the general method can not be processed, then the advantages of the variable slicing tools appear, the following I will elaborate on the use of variable slicing tools! 1. Open a good navigation picture, in the first frame to do the general state graphics, in the second frame, do the button over state graphics, as shown: 2. Go b

In fact, I am not very good at the algorithm, but the project is useful to some kind of algorithm to achieve a certain function, but also have to bite the bullet to achieve.This is a very early project, to calculate the minimum bounding rectangle of a convex hull polygon. There must be no end to this situation. After having turned over some information. It's finally done.Let's talk about what the project will do:There is a desktop app that connects to

Polygon portrait is very popular, the production process is not difficult, but to do a good job or to spend a certain amount of effort. Process: The first selection of good people like pictures, preferably high-definition large image; Then create a new layer, using the pen or lasso tool to start the hook polygon selection from the head, and fill in the middle area of the color, such as the details of the f

1, theoretical support: if from the point of need to judge a ray and the number of focus of the polygon is odd, then the point in this polygon, otherwise the point outside this polygon. (Rays cannot intersect with polygon vertices) 2, Programming Ideas: The idea of the program is to make a horizontal ray (parallel to t

This tutorial is intended to introduce PS simple production pretty popular low polygon background method to PHP chinnet friends. the polygon background produced in this tutorial is very beautiful and difficult, it is very suitable for beginners to learn. we recommend you to the PHP Chinese web. if you like it, you can come and create it. in this tutorial, I would like to introduce PS to my friends in the PH

Meaning of the title:Given an n just n vertex. This is achieved by the N-point coordinate polygon.Http://acm.hdu.edu.cn/showproblem.php?pid=1115Topic Analysis:/*** Source: http://blog.csdn.net/ysc504/article/details/8812339*① quality centered on vertices* N Vertex coordinates are (xi,yi). The mass is MI, then the center of gravity* X =∑ (XIXMI)/∑mi* Y =∑ (YIXMI)/∑mi* in particular. If the quality of each point is the same. The* X =∑xi/n* Y =∑yi/n*② Uniform mass Distribution* in particular. Unifo

2618: [Cqoi2006] Convex polygon Description counter-clockwise gives the vertex coordinates of n convex polygons, and asks them to cross the area. For example, when n=2, two convex polygons such as: The area of the intersecting portion is 5.233.Input The first line has an integer n, which represents the number of convex polygons, and the following describes each polygon in turn. The first line of th

The area of a triangle can be obtained using the cross product of the vector; For a triangle, the area is equal to [(x2-X1) * (Y3-Y1)-(Y2-Y1) * (X3-X1)]/2.0. However, the area is oriented. For a polygon, we can select any point (usually 0, 0) to connect to the fixed point of the polygon, For ordered vertices, we calculate the cross product of a triangle composed of the origin point and a pair of adjacent

Decomposing polygons with GPC(Owed by: Spring Night rain Http://blog.csdn.net/chunyexiyu reprint please indicate the source)Gpc:generic Polygon ClipperGPC supports decomposition polygon, polygon differential set, intersection, XOR, and setGpc_diff,/* difference */Gpc_int,/* intersection */Gpc_xor,/* Exclusive or */Gpc_union/* UNION */Use is more efficient, but be