关键词: 活动断层, 自动化制图, 自动匹配检查, 拓扑检查

Abstract:

Mass of data in geochemical,geophysical,geological,seismological and other aspects were collected for the national active fault database system in the Tenth Five-Year Plan.How to make use of these mass of data to produce thematic map for government's decision making in urban development planning,land use, significant engineering site selection and providing the scientific basis for urban earthquake resistance and disaster mitigation has become an issue worth studying.Automatic cartography solves this problem well.By summarizing,we find that most of present researches in automatic cartography care much about cartography process itself,rarely involve property and spatial data inspection. Thus, it is hard to ensure the accuracy of data and may lead to a drop in quality of automatic cartography.Firstly,this paper discusses the process of automatic cartography.Secondly,considering the actual situation of urban active fault detecting project,we propose to add inspection of automatic cartography and topology check to guarantee the quality of cartography.Thirdly,further research is done in the principle of automatic matching and topology checking to develop a feasible process for automatic matching and topology checking.Finally,a system is designed to realize the function of automatic matching.The techniques and methods used in this system have important reference value in mapping automation in other areas,such as climate,geography,resources and land use,etc.

Key words: active fault, automatic cartography, automatic matching, topology checking