历史事件GIS平台中时空数据模型的研究

Research on spatio-temporal data mode in GIS in history platform

市场上大量的GIS平台都是考虑显示最新的地图,而对于过去的地理数据并不保存.而历史事件GIS平台考虑在一个平台上同时保存历史和现在的所有的地理信息,可以查询和演示历史发展的过程.但是海量的时空数据的存储对GIS的建设提出了很高的要求,而其中最为关键的是平台中的时空数据的存储模型的研究.良好的数据模型不但能够大大减少空间存储,而且对于空间图形的显示也提出较高的要求.多年来,学术界对于时空模型的研究不断,但是始终没有成熟的时空GIS平台出现,本文针对性的对历史事件GIS平台的时空数据模型的研究,是此方向研究的一大步.

Most of the GIS platforms are used to display the latest map and not preserve history geographic data. History Event GIS platform is designed to preserve history geography data and the present geographic information. The history developing process can be queried and displayed. But how to preserve all the huge GIS data is a diffieult problem. The key problem is how to build the spatio-temporal data model of GIS in History Platform. A good data model not only can reduce storage space, but also can display better space image. In recently years, there are many research work about spatio temporal data model. But none of mature GIS platform appears. This research work on the spatio-temporal data model in the history event GIS platform will bring significant progress in this field.