gongjutiao45672

说明：  一个Visual Graph开发程序，具有类似MS viso的功能！带有C++,Delphi,VB,C#等的代码示例！(a Visual Graph development programs that have similar functions VISO MS! With C, Delphi, VB, C# code examples!)

可以画图的功能强大cad软件一定不要错过你值得拥有制图高级工具(You can paint the powerful CAD software must not miss you worthy of drawing advanced tools )

采用层次包围盒、八叉树加速的光线跟踪算法(ray tracing using level boundary box and eight branch tree algorithm)

说明：  图形绘制，可设置线宽、颜色、样式，通过本例将了解如何使用自定义画笔定义线体的颜色，线宽，线形等，以及如何为程序中添加选项菜单和选项设置对话框，如何使用标准颜色对话框，如何使用字体对话框，在选项对话框中实现预览功能。实现选项对话框和窗口类中的数据交换。如何改变对话框和控件的背景色，如何改变控件的文本颜色，对按钮控件的特殊处理。如何在窗口中显示一幅位图。(VC++ graphics rendering, can set the line width, color, style, through this example will learn how to use custom brushes defined line of body color, line width, line, etc., and how to add options for the program menus and options in Settings dialog box How to use the standard color dialog box, how to use the Font dialog box, implemented in the Options dialog box preview. Implementation Options dialog box and window class data exchange. How to change the background color of dialog boxes and controls, how to change the control' s text color on button controls the special treatment. How in the window display a bitmap.)

二维简单多边形凸分解源代码以及详细的使用说明(Two-dimensional simple convex polygon decomposition of the source code and instructions)

体积小巧曲线控件没，实现一般曲线的各种画法，虽然很简单但很好用。(compact design Curve Controls did not achieve normal curve of the painting, although very simple but very good use.)

小型画图板，实现了简单画图板的一些个别简单的功能。(simple draw)

DFX格式的文件操作例子,可以读出由CAD绘制的保存为DFX格式的图片,附带大量注释(DFX format file manipulation example, can read out by the CAD drawing for the preservation DFX format photographs, Notes of a large number of fringe)

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)

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 )