轨迹球实现的鼠标旋转 使用鼠标旋转物体,很简单也有很多实现方法,这里我们教会你模拟轨迹球来实现它. -Trackball mouse to achieve the objects rotating rotation using the mouse, there are many very simple method, where we teach you to achieve it simulated trackball.

这是一个可以让轨迹球实现的鼠标旋转的代码，大家可以在此基础上进一步开发 -A trackball mouse to rotate the implementation of the code, everyone can be a basis for further development

改程序利用opengl实现了跟踪球技术，可以利用鼠标拖动立方体任意角度旋转。-Change program use opengl achieve a trackball technology, you can use the mouse to drag the cube rotated at any angle.