the-four-order-Runge-Kutta-method.

AE实现加载CAD格式的数据，以及对其进行转换格式，转换为SHP等格式，还有对其进行编辑等操作(AE spatial data editing functions, including generating points, generating lines, as well as delete, move elements such as fried operation)

draw用法。新手必看，通俗易懂，请结合工具书(draw Xinshoubikan usage, easy to understand)

在AutoCAD中添加一个自定义分页侧边栏。(In AutoCAD add a custom tab sidebar.)

简单的图形学SRGP教学包运用实现。 A．实现一个下拉菜单软件包，其高层设计见2.2.6节、2.3.1节、2.3.3节中的代码段。软件包通过从输入文件读入字符串来初始化菜单条和菜单体。程序可以通过关闭菜单条使标题消失，也可以激活一个菜单（以各菜单标题在菜单条上的水平位置作为参数）来使菜单出现。 (Simple graphics SRGP realize the use of teaching packages. A. The realization of a drop-down menu package, and its high-level design, see section 2.2.6, section 2.3.1, section 2.3.3 of the code segment. Package from the input file is read into the string to initialize the menu and menu body. Procedures can be closed so that the title menu disappear, but also can activate a menu (in the menu heading in the menu bar on the horizontal position as a parameter) to make the menu appear.)

图形学上机程序，利用种子填充和扫描线算法实验区域的填充。有助于学习者掌握填充算法。进一步理解和学习图形学。(Graphics on procedures, the use of seed filling and scan line algorithm experimental area fill. Help learners fill algorithm. Further understanding and learning graphics.)

计算机图形学 杨钦 徐永安 翟红英 编著(Computer graphics Yang Qin XU Yong Di Hongying edited)

本程序实现了计算机图形学的一些重要算法（画直线，画圆，画椭圆，区域填充，图形裁剪，齿轮生成，三次样条曲线等等），源码和可执行程序均打包于文件中(this program is implemented some important algorithm of computer graphics such as drawing lines,drawing circles,drawing ellipse,area filling,Graphics clipping，gear wheel generation ，three times spline curve and so on），source code and executable files are all included in the compressed file。 )

VC++6.0的实时曲线图表程序.随着输入数据的变化,图表曲线随之实时的上下波动.(VC 6.0 real-time graphs procedures. Along with the changes in input data, Real-time charts followed the curve fluctuations.)

该VB程序可以将外部输入的数据以图形的方式画出，提供了一个参考,并有图形刷新功能，很详细的介绍了VB的画图功能(The VB program can draw the external input of data in graphical form, to provide a reference, and graphics refresh function, a very detailed description of the VB drawing functions )

c++图形的绘制(曲线图.饼状图.柱状图) 以及 图形的打印 与打印预览(c++ graphics rendering (curves. caky Fig. histogram), and graphics printing and print preview)