DrawStock

实现绘制5个圆形组成的图案，继承Jpanel类的DrawPanel内部类，并重写paint()方法。(Plotting of five circular pattern composed of inherited Jpanel class DrawPanel inner class, and override paint () method.)

可以对曲线进行平滑，尤其可以对光谱曲线进行平滑处理！(The curve can be smooth, especially the spectral curve can be smooth processing!)

在前人工作的基础上对三层层状介质的瑞利波频散曲线进行了正演模拟研究，对假定的几组典型模型参数的频散曲线进行了认真分析。通过分析可知，各频散曲线之间是互不相交的，从而对此问题有了一个更清晰的认识。指出当低速软弱夹层存在时频散曲线的特点，并根据分析结果，说明”之“字形频散曲线的形成机理。(On the basis of previous work, the Rayleigh wave dispersion curves of three layered media are studied by forward simulation, and the dispersion curves of some assumed typical model parameters are carefully analyzed. Through the analysis, we can see that the dispersion curves are not intersected with each other, so we have a clearer understanding of this problem. It is pointed out that the characteristic of time dispersion curve exists in low-speed weak interlayer, and according to the analysis results, the formation mechanism of zigzag dispersion curve is explained.)

smith圆图及阻抗匹配等相关应用，附有详细的代码(Smith Chart and impedance matching smith and other related applications, with detailed code)

本程序是计算机图形学课程设计的程序，包含用各种算法绘制直线、圆、曲线，填充，剪裁等，有助于计算机图形学的学习与实践。(This procedure is a computer graphics curriculum design process, including the use of various algorithms to draw lines, circles, curves, filling, cutting, etc., help to learn and practice of computer graphics.)

说明：  ABAQUS中用来绘制二维泰森多边形的插件，可以方便快捷的绘制出晶粒(ABAQUS used to draw two-dimensional voronoi plug-in, can be convenient and fast draw the grain)

说明：  用ncl计算气象资料多年降水的eof前两个模态并作图(Calculating EOF of precipitation with NCL and mapping)

用四阶龙格-库塔法求系统在U单位阶跃输入下该系统的响应曲线(Using the four order Runge Kutta method to find the response curve )

利用MFC实现的画图程序，能够实现基本图形的绘制，可对基本参数进行设置，还可实现保存和打开。 (Paint program using MFC implementation, to achieve the basic graphics rendering, can set the basic parameters, but also to achieve preservation and open.)

a simple ct & pt model in pscad.