Chap03

基于Bresenham算法的四步画直线算法,加快画直线速度(draw line based Bresenham update alogrith)

LMD分解方法，采用b样条包络，其中根据原始程序进行简单改变，希望对大家有帮助(LMD decomposition method, b-spline envelope, which according to a simple change in the original program, and I hope for all of us to help)

3次B样条小波程序，用MATLAB写的，思想简单，但要建立好像不容易，大家看看(3 bspline wavelet program,using matlab language.The idea is not complex,but it is not easy to realize it.Hope all read.)

pscad simulation of Rectfier_1

测量弧的线性长度并在绘图平面标注弧长。arcdim(The linear length measuring arc and arc length dimension in the drawing plane. arcdim)

dxflib-3.3.4-src ，dxflib是一个用来读写DXF文件的C++库。当读DXF文件的时候,dxflib分析文件并且调用用户自己定义的函数来添加实体、层、等。(dxflib-3.3.4-src，dxflib is an opensource C++ library for reading and writing AutoCAD (R) DXF files. )

实用三百例 前后学习 融会贯通 而且每个实例都是一个小模块 从画图到计算(Around three hundred cases of practical mastery learning and each instance is a small module from the drawing to the calculation)

基于PSCAD的混合有源滤波器模型，仅供学习参考(HAPF model based PSCAD)

集中介绍了HDC,CDC,CClientDC,CPaintDC,CWindowDC的使用方法和区别，绘图显示效果，区分窗口客户区。(Focus on the HDC, CDC, CClientDC, CPaintDC, CWindowDC to use and distinction, graphics effects, to distinguish the window client area.)

自动绘制保护煤柱,CAD 二次开发的，输入参数后，自己就绘制出来了(Automatic drawing protection pillar, CAD secondary development)