| DEM及纹理图像的集成数据库研究 |
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| 引用本文： | 李峻,边馥苓,谈晓军.DEM及纹理图像的集成数据库研究[J].测绘科学,2000,25(3):25-27. |
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| 作者姓名： | 李峻 边馥苓 谈晓军 |
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| 作者单位： | 武汉大学信息工程学院!武汉市珞喻路129号430079 |
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| 摘 要： | 针对地形纹理叠加显示研究了数字高程模型和地形纹理图像的集成管理 ,讨论了基于文件数据库管理系统的栅格数据的组织方式 ,提出了基于关系数据库管理系统的 DEM和纹理图像的数据组织和访问操作模式 ,并对各种模式进行了比较分析。
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| 关 键 词： | DEM 纹理图像 纹理显示 文件数据库 关系数据库 |
The Research on Integration Database of DEM and Texture Image |
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| LI Jun,BIAN Fu lin,TAN Xiao jun.The Research on Integration Database of DEM and Texture Image[J].Science of Surveying and Mapping,2000,25(3):25-27. |
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| Authors: | LI Jun BIAN Fu lin TAN Xiao jun |
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| Abstract: | This paper studies the integration management of the Digital Elevation Models and terrain texture images according to DEM&texture overlapping. It discusses the access mode and heterogeneous data operations of the raster data based on file system database management. According to the disadvantages of file database, a new approach of raster data organization based on RDBMS is suggested, which presents data block compression, metadata index, data updating and homogeneous data operations. The comparison between the above modes comes to this conclusion that the heterogeneity of different raster data requires more advanced management technique such as OODB or ORDB. |
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| Keywords: | DEM texture image texture display file system database relational database |
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