在矩形内建立坐标网格

Chapter 6-8 Chen Huaichen courseware

运用lisp，进行三角网的构建。生成 delaunay 三角形。图像为三维立体图像，功能强大，将所有的随机点连接。

021 - ObjectDbx技术在当前图形中插入其它未打开的图形中的图块(021 - ObjectDbx Technology Inserts Blocks in Other Unopened Graphics in Current Graphics)

说明：  Display & hide The line generates the nodes The projection line Merge node I'm going to draw three dimensions

【实例简介】cass常用插件

说明：  《AutoLISP 机械设计高级应用实例》 基于autolisp和CAD的机械绘图方面的专业书籍(AutoLISP Advanced Application Examples of Mechanical Design Professional Books on Mechanical Drawing Based on Autolisp and CAD)

说明：  cad是一款非常实用的设计软件之一，在使用时我们常常需要快速统计块的数量。(CAD is one of the most practical design software. When we use it, we often need to count the number of blocks quickly)

说明：  cad图层显示、关闭、冻结等快捷命令，非常好用(CAD layer display, close, freeze and other shortcut commands, very useful)

主要论述了基于FPGA的末制导雷达伺服系统设计。结合末制导雷达讨论其电机控制、二阶伺服系统性能和PID校正算法,利用VHDL语言设计,实现基于FPGA的方位步进电机开环定位控制和俯仰直流电机闭环速度控制的伺服系统。结合实际应用中遇到的问题,提出了基于"反馈控制"理论的有效的补偿算法,该算法提高了伺服系统的稳定性、快速性和精度。(Mainly discusses the design of terminal guidance radar servo system based on Field Programmable Gates Array(FPGA).It includes the system’s electric machine control,second-order servo system performance and PID correction algorithm based on Virtual Hardware Description Language(VHDL) on azimuth stepping motor open loop positioning control and pitch direct current electric machine closed loop speed control of the FPGA servo system.In allusion to some factual problems during its application,presents corresponding effective solutions based on traditional control theory "Feedback Control".The fact proves that these methods can greatly improve the stability,speediness and precision of the original servo system.Additionally,a basic algorithm which can be realized in a terminal guidance radar servo system is given)

说明：  lisp学习应用 这个挺好的 建议大家学习一下 反编译也不错 就是没工具 那就下一个吧 还挺麻烦 随便上传一个小程序 呼伦一下吧(lisp CAD vba would did like a little piggie ?I like the fat pig,so I will buy a big fat pig and a little doggie .)