grDemo

实现本机流量监控绘图，测试可用，方便安全(Netflow monitoring)

图形学画图,直线,圆,多边形,曲线,随手画,文本,裁剪(Graphics drawing straight lines, circles, polygons, curves, hand painting, text, cutting)

这是国外的同行编写的画图板程序，感觉比陈建春的要好些，说实话研究了半天，发现国内的cad水平低不是因为国内的人笨，主要是国外的cad技术不能很快的传递到国人手中，总是参考陈建华等水平有限，工程水平差的书籍造成整体水平低，书中没有详细的流程图，和软件设计思路，而且代码错误连篇。(This is the foreign counterparts of the drawing board to prepare procedures, CHEN Jian-chun than feeling the need to better tell the truth for a long time study and found that low levels of domestic cad because people are not stupid, mainly abroad cad technology should not quickly delivered to the the hands of the people always refer to Chen Jianhua, such as the limited level, engineering level difference caused by the overall level of books low, the lack of a detailed flow chart of the book, and software design, and code errors pack.)

风力发电机的浆距控制PSCAD仿真模型,模型通过仿真可以看到如何调节风力机的浆距(Wind turbine pitch control PSCAD simulation model, model simulation you can see how to adjust the pitch of the wind turbine)

NT9200数字脑电图仪 的串行通讯及实时绘图程序。可借鉴里面的绘图程序。(NT9200 digital EEG instrument serial communications and real-time drawing program. Inside of the mapping process can learn from.)

说明：  通过使用dxflib库，对dxf文件进行读取(Read DXF files by using the dxflib Library)

PSCAD风机（异步机）+SVC无功补偿模型(PSCAD wind SVC)

简单计算机图形学算法，通过直线中点Bresenham算法,绘制直线。( Simple computer graphics algorithms, Bresenham line passing through the midpoint algorithm, draw a straight line.)

利用逐点法绘制出图形，图形的绘制其实都是由折线组成的，只是每条折线的误差太小了，肉眼根本分辨不出来(use of the point-by-point drawing graphics, the graphics are actually drawn from the composition of the dogleg, only broken each of error is too small, the human eye can not be seen)

一个用来显示Autocad内部数据结构的极佳工具. Autocad2006二次开发人员必备!(used to indicate an internal data structure Autocad an excellent tool. Autocad2006 Secondary Development staff required!)