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空间数据多存储格式的特点给数据共享和互操作带来困难,往往成为数据动态集成应用中的瓶颈。实际应用中迫切需要一个能够随时、动态,并可与应用程序紧密集成的转换工具。本文提出采用中间件形式设计上述工具,并基于GDAL库实现了该工具,完成了多源空间数据访问功能,改善了应用系统的动态集成性能,并通过应用验证了所提出方法的有效性。 更多还原

【Abstract】 Spatial data storage format and more features to the data sharing and interoperabilty difficult,often applied in the dynamic integration of data bottlenecks.Urgent need for a practical application can at any time,dynamic,and can be tightly integrated with the application conversion tools.In this paper,the use of middleware in the form desigen tool,and based on GDAL library implemants the tool to complete the multi-source spatial data access,improves the dynamic integration of application system ... 更多还原