【摘要】 以长江中上游地区作为试验区,针对利用ERDAS IMAG INE V8.7制作三维飞行漫游时中文注记的生成、不同空间分辨率DEM的地形信息载量与内存消耗的关系、EDM与卫星影像叠加后在不同地形环境下的参数设置、三维飞行漫游文件格式等问题,提出了一系列切实可行的解决方案,在实践中取得了较好的三维可视化效果。研究结果对于城市景观规划设计、土地资源环境调查等诸多领域,都具有很强的实用价值。更多还原

【Abstract】 In this paper,some cases in the upper and middle reaches of the Yangtze River were taken to discuss terrain 3D visualization.A series of solutions were proposed to the issues related to Chinese annotation,relationship between terrain information quantity and computing time consuming,parameters setting for different terrain conditions.Its good effect in practice showed it would be a helpful approach in aid of urban planning,land resourcesurvey and other activities of decision making.更多还原