常見例句The first problem can be solvedby mapping and DEM generation in mapsheet and automation of model join. 最后提出了解決這兩個問題的方法:按圖幅為單位進(jìn)行立體測圖、DEM生成,基本實(shí)現(xiàn)模型接邊自動化;Took vector data as an example, classify the control level into map, layer, scale, mapsheet, region, geographical factor, and research the implementation of each control level. 以矢量數(shù)據(jù)為例將控制級別分為地圖、圖層、比例尺、圖幅、區(qū)域、地理要素等，研究各粒度的訪問控制方法的實(shí)現(xiàn)。multi mapsheet 多圖幅 返回 mapsheet