一幅欧洲立体地形图。
这两种方法都能有效地进行隐面消除，并通过明暗处理获得了真实感较强的立体地形图和三维遥感图。
By using these two methods, hidden surfaces are removed effectively. After shading treatment 3-d terrain pictures reflecting the real situation and remote sensing images are obtained.
给出了平面等高线地形图，带地物符号的工程地形图，立体等高线图及逼真地形图等多种造型方法。
And various methods of modelling, that is, contour maps, engineering maps with surface feature symbols, 3 D contours and realistic maps are given.
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