基于OSG实现了虚拟园区的漫游系统，可以利用鼠标对漫游园区进行大小的缩放、位置的拖动，并且可以通过键盘控制坦克的前进和转弯。-The visual park ramble system is implemented based OSG in this paper.It can It can be the size of the roaming the park with the mouse ,and it can control the tank through the keyboard.