中文摘要：

为了在计算机中得到空间图形的立体感显示效果，只能在输出界面显示空间图形中朝向观察者的表面，而其余部分则不被显示。空间立体可采用多边形建模。简单凸多面体的求解较容易，但凹多面体的求解则相对困难。在此利用图形学中的平移、旋转、正平行投影、深度缓存消隐算法、射线法等相关理论，结合可视化的MFC开发平台，研究并实现了一个凹多面体表面的全方位观察，对进一步研究消隐算法及射线法的改进具有较好的参考作用。

英文摘要：

In order to display three-dimensional graphics in the computer,only the surfaces of objects toward the observer are showed in the output interface,but the rests are not displayed. The three-dimensional model can be established by polygon. It’s easy to solve simple convex polyhedron,but the concave polyhedron is not. In combinstion with visual MFC development platform,the all-round observation about the concave polyhedron is studied and implemented by using the theories of transla-tion,rotation and parallel projection,depth buffer blanking algorithm,and ray method in graphics. It＆#39;s a good reference to fur-ther research the improvements of blanking algorithm and ray method.