基于QT4开发的一个虚拟仪表盘，比NI的控件更好看，且可以自由修改想实现的功能-QT4-based development of a virtual instrument panel, the controls look even better than the NI, and are free to modify the order to realize the function

QMeter时速表,可以通过编译显示飞行器速度(QMeter speedometer, you can compile to display the speed of the aircraft)

qt实现仪器仪表显示，可以自己设置显示范围，显示数字可以改变颜色。(QT instrument display, you can set their own display range, display numbers can change color.)