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说明：  用AutoCAD Vlisp联合ayunger.Dll开发“启动屏”函数，供各位学习交流。(Ayunger.Dll developed jointly with AutoCAD Vlisp &quot Start Screen&quot function for you to learn communication.)

基于PSCAD的CRH3动车组的整流器模型，已调试(PSCAD of CRH3 EMU rectifier-based model, has been commissioning)

AUTO CAD下的测绘数字成图软件！三角形网、等高线、土方计算等！(the mapping and digital map software! Triangle Network, contour, earthwork calculations!)

说明：  autocad 2000 visual lisp 语言学习教程(Autocad 2000 Vislisp Language Learning Course)

ADAMS动力学仿真，对钢丝绳建模的宏程序(ADAMS dynamic simulation, modeling of the macro program for wire rope)

说明：  netDxf是一个用C＃编程的.net库，用于读写AutoCAD dxf文件。 它支持文本和二进制格式的AutoCad2000，AutoCad2004，AutoCad2007，AutoCad2010，AutoCad2013和AutoCad2018 dxf数据库版本。 该库易于使用，我试图使程序尽可能简单，例如，您不需要使用图层，样式或线型定义填充表格部分。 每次添加新项目时，DxfDocument都会处理这个问题。(netDxf is a .net library programmed in C# to read and write AutoCAD dxf files. It supports AutoCad2000, AutoCad2004, AutoCad2007, AutoCad2010, AutoCad2013, and AutoCad2018 dxf database versions, in both text and binary format. The library is easy to use and I tried to keep the procedures as straightforward as possible, for example you will not need to fill up the table section with layers, styles or line type definitions. The DxfDocument will take care of that every time a new item is added.)

说明：  AutoCAD Visual Lisp OpenDCL语言教程(AutoCAD Visual LISP Function Manual AutoCAD OpenDCL Tutorial)

用于选定区域绘制等距坐标网格。1.用户指定两点作为区域的范围                                                      ;            2.计算所选范围中的右上/左下角                                                     ;            3.分别判断x/y的值是否为整型，找出网格中相应的点坐标，用直线连接

VBA对cad的二次开发 vba基础理论 vba源代码集合 有兴趣可以多看看(VBA for the secondary development of cad vba vba source code-based theory who are interested can see more of the collection)

在pscad中建立的风电仿真模型，有需要的可以下载看看，共同学习。(Wind power simulation model established in pscad can download to see, learn together)