数字地质图及其关系数据模型研究

对数字地质图的定义、概念、构成要素、功能和应用等方面进行了系统的分析,从集合数学角度对数字地质图定义进行了形式化描述,提出了数字地质图的数学表达式.根据这一定义,探讨了数字地质图数据模型的框架和研究思路,提出数字地质图关系数据模型设计思想.最后对数字地质图表示的复杂性问题和逻辑一致性问题进行了探讨.

Study on digital geologic map and its relational data model

With a deep and broad application of computer technology in Earth science, the representation, storage and use of geologic maps in a digital format in computers provide a convenient, rapid access and application scheme for geologic mapping and geologic analysis. The paper gives a systematic and intensive analysis for the definition, concept and its component features of digital geologic maps. From the viewpoint of aggregation mathematics, it describes the definition of digital geologic maps in formalization and gives their mathematic expressions. Furthermore, based on the definition, it puts forward a framework and research approaches of the digital geologic map data model of China. And then, it discusses the design ideology and principles of the digital geologic map relation data model. Eventually, it explores the complexity and logic consistency issues on the representations of digital geologic maps.