When I compile Patented directory in CMake,there is an error occured.It showed "Unknown CMake command 'VTK_MAKE_INSTANTIATOR2' in CMakeLists.Txt". I don't know why. _________________________________________________________ Do You Yahoo!? "用雅虎搜索，找到关于奥斯卡的一切" http://cn.search.yahoo.com/search/cn?p=%b0%c2%cb%b9%bf%a8