HDC-CDC-CClientDC-CPaintDCC-WindowDC

用于拟合椭圆的函数，支持对于多个离散数据点的椭圆曲线方程计算(new function)

PSCAD风机（异步机）+SVC无功补偿模型(PSCAD wind SVC)

手动绘制点，自动生成样条曲线，可以拖动修改点来修改样条曲线(Manually plotting points, automatically generated spline curves, you can drag the modified point to modify the spline)

A simple graphics class for 2D drawing

Manejo de Imagenes usando haarcascade en QT+opencv

VB编写的画图板，使用方便可以帮助代码学习。。(VB prepared the drawing board, easy to use can help the code to learn. .)

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 )

一个简单的程序，可以绘制点、线、圆、方。可以保存成一定格式的图片文件。软件最大的问题是绘图基本在对应的鼠标事件里进行，而没有在paint方法里进行，可借鉴。(A simple program, you can draw points, lines, circles, square. Can be saved into a certain format image files. The biggest problem is the graphics software basic mouse events in the corresponding conduct, but not in the paint method in the conduct, we may learn.)

关于固高运动控制卡T曲线运动模式程序的例子(About Googol motion control card T curves sport program)

基于Bresenham算法的四步画直线算法,加快画直线速度(draw line based Bresenham update alogrith)