为了改善数字地图图幅自动接边算法在处理大区域甚至全球范围的大数据量图幅接边时效率低的问题，提出了基于矢量id映射的“虚拼接”算法。
To improve the efficiency of automatic maps edge matching of massive digital map data of great regions even global ones, virtual stitching algorithm based on vector ID mapping is presented.
城镇地籍测量中，成图比例尺跨度较大容易造成图幅拼接缝隙，产生接边误差。
In the process of splicing the urban and country cadastral mapsheets, it may cause apertures and precision difference easily because of large scale spans among corresponding mapsheets.
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