VTk编写的角度测量
.................\角度测量
.................\........\Cylinder.cxx
.................\........\Cylinder.dsp
.................\........\Cylinder.dsw
.................\........\Cylinder.ncb
.................\........\Cylinder.opt
.................\........\Cylinder.plg
.................\........\Debug
.................\........\.....\vc60.idb
.................\........\.....\vc60.pdb