摘要
图斑合并(聚合和融合)是专题地图综合中一个很重要的任务。将小于面积阈值的图斑群的空间视觉冲突分为四类,针对不同的类型采取不同的策略,重点讨论了邻接小图斑群的渐进式合并方法。该方法有效地简化了整个计算过程,提高了计算效率,并使得合并前后的变化值达到最小。
The polygon combination which includes aggregation and amalgamation is an important task in the generalization of thematic map.The spatial visual conflict of polygon groups which are lower than area thresholds is divided into four kinds and solved by different strategies.And a progressive combination method of adjacent polygon groups is mainly proposed,which can simplify the entire calculation progress,improve the computing efficiency,and make the changes reach the minimum before and after the generalization.
出处
《武汉大学学报（信息科学版）》
EI
CSCD
北大核心
2012年第2期220-223,232,共5页
Geomatics and Information Science of Wuhan University
基金
国家自然科学基金资助项目(41071289
41171350)
关键词
地图综合
图斑合并
图斑群
空间视觉冲突
渐进式合并
map generalization
polygon combination
polygon groups
spatial visual conflict
progressive combination
