一个使用QT编写的三维函数图形程序，输入z=f(x,y)的表达式即可画出函数图像，使用openGL编程-The preparation of a three-dimensional function using the QT graphics program, type z = f (x, y) function, the expression can draw images, use the openGL programming

QT+OpenGL绘制三维图形,包括正四面体，立方体，及利用帧缓存技术的水壶绘制-QT+OpenGL draw 3D image

qt绘制波形图的精美控件，非常好用-QT draw a waveform chart exquisite control, very good use...

单个opengl窗口，显示一组茶壶，可单击拖动鼠标绘制选择框。(A single OpenGL window displays a set of teapots, and can be clicked to drag the mouse to draw the selection box.)