A Data Organization Method For The Geograhic Scene Based In Neo4j Database

The advent of the era of information technology and spatiotemporal big data promotes the rapid development of geographic information science(GIS).Various industries are looking forward to the role of GIS in supporting geographic analysis and decision-making,simulation of geographical phenomena,and expression and mining of geographical knowledge and rules.However,the existing GIS based on geography is not enough to express complex geographical processes,interactions and geographical phenomena and the deduction of laws.In this case,the concept of "geographical scene" has been developed.Geographical scene is a multi-level nested and multi-element interactive whole,which follows the geographical law to organize and manage the geographic objects in the geographical scene as a whole and comprehensively,and then carries out complex geological research and geological analysis on this basis.However,the traditional hierarchical classification of geographic data is difficult to be directly applied to the geographic scene.Therefore,it is necessary to design a multi-source geographic data integration scheme based on the geographic scene and construct the geographic scene database.This paper makes an in-depth study on this problem:(1)The construction of geographic scene logical modelIn this paper,the six elements model(person event thing time place phenomenon)of geographical scene is reconstructed,and the characteristics of geographical elements and their relationship are organized.The UML unified modeling tool is used to express the complex association relationship and multi-level nested structure among the geographic scenes and various geographical elements,and the logical data model of the geographic scene is constructed.(2)Multi source geographic data organization method for geographic sceneBased on the above logical data model,the traditional hierarchical and classified geographic data are integrated,and the relationship between geographical elements and multi-level nested relationship is constructed,and the multi-source geographic data is redistributed according to the object-oriented idea.(3)The method of geographic scene data organization based on neo4 j graph databaseThe neo4 j map database is used to map and organize the integrated geographic scene data to construct the geographic scene database.The node storage structure of different types of geographical features in the database is constructed,and the complex and diverse relationship between geographical features is mapped completely.(4)Design and development of geographic scene oriented multi-source geographic data organization systemA prototype system is designed to verify the above theoretical methods.The effectiveness of the scene oriented data model and data organization method is verified,which can provide support for complex geoscience analysis to a certain extent.