Line

说明：  三次B样条,程序中有部分说明,可以自由在其中进行扩展设计其它类似样条程序.(cubic B-spline, some procedures that can be carried out in one free expansion design similar kind of procedure.)

一个完整的图形编程源程序，可供图形编程者学习(A complete graphical programming source code available for graphics programmers to learn)

cad图像纠正cad图像纠正cad图像纠正cad图像纠正(wad sdfdfgdfgfh sgd g gs gsdg sdf sf )

解析法面积计算,读数据文件,计算后生成结果文件,任意多边形的顶点坐标,然后 计算出面积是平方米和公顷(analytical calculation, reading data files, calculation results generated documents, arbitrary polygon vertices, then compute the area of square meters and ha)

工业自动化监控组态系统中图形组态功能的实现，用Visual C++6.0编写，希望对你有所帮助(industrial automation control system configuration graphics configuration are realized, Using Visual C 6.0, and I hope to help you)

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)

单文档绘图工具，包括直线，曲线，扇形，圆形，圆角矩形，矩形等图形，还可以设置线条的颜色等属性。(Single document drawing tools including lines, curves, fan-shaped, round, rounded rectangle, rectangle and other graphics, you can also set the line color and other attributes.)

读取DXF文件(2000,2002版本),包括了分层管理数据的思想,供大家参考(read DXF files (version 2000, 2002), including a hierarchical data management thinking, for your reference)

精彩原代码，适合初学者(brilliant original code for beginners!)

for PSCAD softwear it can be very easy and coming soon challenger in this soft