贝塞尔曲线画板演示程序-bezier curve showing program

C语言实现的交互式绘图系统，图形用户界面，有橡皮筋法画直线、画圆、画Bezier曲线、裁剪等功能，用户可自行增加其他功能。-C language interactive mapping system, the graphical user interface, a rubber-band linear paintings, Circle, Bezier curve drawing, cutting and other functions, users may add other function

Bezier曲线的绘制与升阶：1）Bezier曲线的绘制程序，输入控制顶点，画出控制多边形和曲线。2）升阶一次，画出新的控制顶点-Bezier curve drawing and or bands: 1) Bezier curve drawing program, enter the control points, draw control polygon and curve. 2) or order one, draw a new control point