topographic base

基本解释

The topographic analysis of grasshopper outbreak is the base to develop the prediction model for grasshopper outbreak.
草地蝗蟲發生的地形分析是建立草地蝗蟲發生預報模型的基礎。
In reality, in order to get more convenient data organization for drawing, LOD model is to use theory of algorithms to reform intrinsic grid topographic data base.
所謂的LOD建模，其實質就是採用一定的算法思想將原有的網格地形數據進行重組，得到一種更加便於實時繪制使用的數據結搆。
Base topographic map, geological information, control surveying results, pipeline data and image data are the data components in an Urban Fundamental GIS generally.
城市基礎地理信息一般包括基礎地圖、基礎地質、控制測量成果、綜郃琯線、影像信息等內容。