Abstract
Abstract. Spatial data is core of the Geographic Information System (Shorter form the GIS). Spatial data management is an important part of the GIS, many present spatial data management systems are usually only attached importance to storing and managing graphical data and attribute data of GIS in RDBMS. Making use of a spatial database technology to realize the integrated management, but this is not satisfied to quick access and management for many users. However, considering one way of the visual management, using the shell namespace extension framework and a registered mode integrated with the windows explorer, this paper has designed and developed a visual management component of data explorer about the spatial data in GIS so as to convenient to manager the distribution, multi-source, heterogeneous data. In addition, according to the requirements, users could organize the spatial data and access and manage quickly huge amounts of spatial data.
Highlights
The core content of the spatial data management is spatial data
Spatial data is the sum of the geographical spatial data associated with the application, in which the geographical information system be stored on the physical storage medium
Spatial data is a kind of data related to the spatial location and spatial relationship which is organized as a series of special file structure in a storage medium
Summary
Namespace extension (Armstrong et al, 2001 and Shell Programming Manual) is defined as a method allowing the extension and customization are integrated into windows detector. In this paper, combined with the existing spatial data management technology and the help of shell namespace extension programming (Zhou, 2002), integrating with the vector data, attribute data and raster data and so on, has realized. When to display the tree view node, it requires namespace extension to enumerate the content and find the properties about folder and subfolder All these things are underdoing by IShellFolder interface. On the contrary, writing namespace extension is going to ready to accomplish all input request, that is to say, realizes certain functions on the special COM interface. It can be well integrated by using the smallest interface and function of one extension supported
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