在北达科他州，研究人员利用光探测和测距设备(激光雷达)，以建立一个三维地形图的达科他死亡地区。
In North Dakota, the researchers used Light Detection and Ranging equipment (LiDAR) to develop a three-dimensional topographical map of the area where Dakota died.
讨论了一种基于地形图的纹理映射算法，用以生成地形表面的三维图形。
This paper discusses the algorithm of texture mapping based-on topographic map to produce the 3d images.
利用车载激光扫描测量技术完成地形图修测、三维场景重建、建筑模型制作以及工程测量等任务，是近年来激光扫描测量技术应用研究的一个重要方向。
To complete Map Revision, 3d - Scene Rebuilding, Construction Modeling, Engineer Survey and other missions by using the vehicle laser - scanning technology is the important direction of research.
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.
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.
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