Algorithm of virtual stitching on digital maps edge matching
Algorithm of virtual stitching on digital maps edge matching
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发表时间：
2010
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通讯作者：
Li Xue-jun
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作者：
Li Xue-jun
为了提高大区域乃至全球海量数字地图数据自动地图边缘匹配的效率，提出了基于矢量ID映射的虚拟拼接算法。该算法通过提取图纸的边缘匹配信息生成拼接ID链接，从拼接的ID链接中生成ID映射对，对ID映射对进行排序以快速搜索每张地图中待映射的矢量ID并进行映射，合并待拼接矢量的属性，最终实现拼接效果。该算法不重构拼接矢量的坐标数据，避免了对大量内存的需求，并减少了地图自动匹配过程中的手动操作。
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.The algorithm generates stitched ID links by extracting edge matching information of sheets,produces ID mapping pairs from stitched ID links,sorts ID mapping pairs to quick search for vector IDs to be mapped in each sheet and maps them,merge attributes of vectors to be stitched,at last stitching effect is realized.The algorithm does not reconstruct the jointed vectors’coordinate data,avoids requirement of enormous memory,and decreases manual action during the automatic maps matching.