draw polygon coordinates online

Recently, when I was doing box2dweb development, I wanted to write a function to create a positive polygon. However, due to my knowledge, I drew it on the draft paper and thought about it for a morning and didn't work out any good methods. Later,

I. Introduction The emergence of computers has greatly simplified a lot of tedious work, but there are also some problems that are easy to understand but need to come up with a set of simple general solutions, for example, geometric issues. As a

0. Preface Recently, I have encountered similar geometric location problems and have not spent any time summing up them. This article summarizes the methods and code for determining the location of common points and polygon. Hope to help you. All

For example, three vertices a (Xa,za) B (XB,ZB) C (XC,ZC) are knownand O-point (Xo,zo)Determine if o point is in triangular ABC in the X-Z planeI think of a lot of ways, but I'm looking for the quickest and the simplest. 1. Area discrimination

Original Author: Jake Simpson Translator: Xianghai Part 1: illumination and texture of 3D Environments World LightingDuring the transformation process, we usually encounter one of the most important operations in the coordinate space called the

  Reproduced in: http://blog.csdn.net/Crazyjumper/archive/2007/12/26/1968567.aspx Reproduced in: http://blog.csdn.net/Crazyjumper/archive/2007/12/26/1968567.aspx Reproduced in: http://blog.csdn.net/Crazyjumper/archive/2007/12/26/1968567.aspx Hello

Write in frontPrior to learning 2D texture mapping, there are actually other types of textures that we need to learn further, the cube texture (cubemaps) to be learned in this section is a technique for compounding multiple texture images onto a

Write in frontThis article is based on Digital tutors a series of tutorials to summarize the expansion of the ~digital tutors is a very good tutorial site, contains a wide range of multimedia information, very cool! In addition, a tutorial in unity

Write in frontThis article is based on Digital tutors a series of tutorials to summarize the expansion of the ~digital tutors is a very good tutorial site, contains a wide range of multimedia information, very cool! In addition, a tutorial in unity

===================================================== The simplest audio-visual Playback Example series article List: Simplest visual Audio Playback Example 1: general statement The simplest AV playback example 2:gdi play YUV, RGB Simplest AV