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这些是CAD教程中的相关源文件和素材，包括dwg文件和效果图。(source code for AutoCAD designning )

matlab绘图中柱状图增加图案，用于区分不同柱状图(matlab drawing increased histogram pattern is used to distinguish between different histogram )

绘画出三阶的贝塞尔曲线, 求出曲线上各点的曲率和半径,可用于弯道设计(Drawing out the order of the Bezier curve, find the points on the curve and radius of curvature, can be used for curve design)

GMT是一个很强大的地学绘图软件，应用于很多专业，很实用，这是一篇很好的GMT入门教程(GMT is a very powerful geoscience mapping software, used in many professional and very practical, this is a good introductory tutorial GMT)

说明：  scatterbar就是画出三维散点柱状图，并且可以调整柱子的大小和颜色渐变，比原函数bar3更方便，更好用。(scatterbar is to draw three-dimensional scatter histogram, and can adjust the size and color gradients pillars, and more convenient than the original function bar3, easier to use)

说明：  电网pq控制，pscad，有功功率与无功功率可控(failed to translate)

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.)

cad中可以像cass一样划线,具有换向，隔点闭合等功能！(cad cass huaxian)

计算机图形学，mfc实现二维图形的基本几何变换，如平移、旋转、缩放、对称、错切变换(Computer graphics, mfc achieve the basic two-dimensional graphics geometric transformations, such as translation, rotation, scaling, symmetry, shear transformation)

说明：  用VB编写的简易的绘图程序，用来绘制直线圆和矩形，可以选择绘图颜色和画笔粗细。(VB, easy to use drawing program, circles and rectangles to draw a straight line, you can select the drawing pen color and thickness.)