利用D3D有关函数，对三维模型（.off格式）文件进行缩放，平移，旋转变换。-Use D3D related function, on the three-dimensional models (. Off format) file to zoom, pan, rotate, change.

基于vs2010+OSG的位置变节点示例，主要实现模型的位置变换，大小缩放等功能。-Implementation model based on the location of vs2010+ OSG variable node example, the main location transform size scaling function.