Design and establishment of mineral geography database based on Geodatabase

The data structure of GIS is complex and it is difficult for the traditional GIS data model to express the existence of unstructured data. Meanwhile, traditional GIS data model can not express the complex relationship such as inheritance and aggregation which widely used in GIS. This article will propose a new way of establishing mineral geography data model based on Geodatabase. Through the analysis minerals geography data, the division feature classes and the definition of feature classes and relationship classes, the characteristics of mineral dynamic data structures will be analyzed on the base of Geodatabase data structure. The objects, elements and the corresponding relationships between spatial entities will be established by the use of UML and CASE tools. The mineral geography database will be automatically generated and the accuracy of mapping relationships between data will be ensured by the use of this method.