CAD的BUG，类似问题解决办法详见链接https://www.autodesk.com.cn/support/technical/article/caas/sfdcarticles/sfdcarticles/CHS/warning-displayed-when-using-3D-Free-Orbit-3DFORBIT.html?us_oa=search-us&us_si=138f63ff-25fe-449f-92b5-e667ffd30c44&us_st=%E6%BC%AB%E6%B8%B8%E4%B8%8E%E9%A3%9E%E8%A1%8C在AutoCAD产品中使用三维自由动态观察(3DFORBIT)时显示警告
