面向GeoGlobe的Oracle GeoRaster应用研究

GeoRaster是Oracle公司最新推出的用于栅格数据组织与管理的技术模块,其底层数据模型和高层开发接口非常适合于海量栅格数据的管理、应用和共享。本文讨论了如何在＂天地图＂核心支撑软件——GeoGlobe中接入Oracle GeoRaster栅格数据源,设计了面向GeoGlobe的库表结构和集成框架,针对影像黑边和内外码转换等问题,提出了相应的解决方案,实现了GeoGobe与Oracle GeoRaster的集成原型。结果表明：Oracle GeoRaster技术可以胜任GeoGlobe中栅格数据的组织与管理工作。

Application Research of Oracle GeoRaster Oriented to GeoGlobe

GeoRaster is a relatively new module of Oracle database,which is used to organize and manage data of raster type.The data model and the development interface of GeoRaster is fit for the management,application and sharing of raster data of massive volume.This paper discusses how to integrate the raster data source of Oracle Georaster into GeoGlobe,core software of Tianditu platform.First,the database structure and the integration framework,oriented to GeoGlobe,are designed;next,some key issues,such as image black edge and code transformation,are addressed;finally,the prototype integrating Oracle GeoRaster and GeoGlobe is developed.The experiments based on this prototype shows that Oracle GeoRaster is competent for the organization and management of raster data in GeoGlobe