MapGIS到Geodatabase数据自动批量转换实践研究

国土资源数据库建设成果主要以MapGIS和Geodatabase(GDB)格式进行存储,两者之间的数据转换十分频繁。经测试表明,MapGIS通过中间格式向GDB转换存在问题,因此本文提出直接读取MapGIS加密二进制文件,通过MapGIS SDK和ArcGIS Engine相结合开发转换程序的技术路线,实现MapGIS数据批量自动转换到GDB。在分析MapGIS数据组织、GDB数据组织、实体几何类型对照、几何对象转换对照、属性字段对照等关键技术的基础上,采用多源空间数据无缝集成技术(SIMS)进行程序设计,对转换流程进行优化,开发出了MapGIS到GDB的数据转换软件MapGIS2GDB,该成果能够满足省市级国土资源数据库建设对MapGIS数据转换的需求。

The research and practice of the data format automatic transformation from MapGIS to geodatabase

The achievement data of land resources database construction are generally stored with MapGIS and GDB format. These two kinds of data formats are transformed very frequently. The test indicates that some problems will be encountered during the transformation from MapGIS to GDB by middle format. This article proposed an advanced method that directly reads the MapGIS encryption binary file, and completes data transformation automatically from MapGIS to GDB by unification of MapGIS SDK and ArcGIS Engine. Based on the analysis and comparisons of the essential technology such as data organization of MapGIS and GDB, the entity geometry types structure, the geometry transformation ways, the attribute fields frame and so on, a software MapGIS2GDB is developed using the technology of Seamless Integration of Multisource Spatialdata (SIMS) to realize the data transformation from MapGIS to GDB. This software system can be used successfully in the MapGIS data transformation of land resources spatial database in provincial level.