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Study of Spatial Data Distribution and Sharing Mode Based on Caching

Author: WangYanBin
Tutor: HeZhengWei
School: Chengdu University of Technology
Course: Cartography and Geographic Information Systems
Keywords: Spatial Data Spatial data index Cache Middleware Hilbert curve
CLC: TP311.13
Type: Master's thesis
Year: 2009
Downloads: 95
Quote: 1
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Abstract


This article is for the legislature of the questions based on the establishment of experimental space data center , cache-based spatial data publishing and sharing mode . Using relational database (RDBMS) storage space vector data and raster data , client caching technology to improve the speed of access to spatial data , to verify the interactive sharing of spatial data between the client and the server-side and client mode . Around the article theme focuses on several key issues : ( 1 ) the establishment of spatial data index . Space indexing techniques to select a grid - based indexing techniques , and improved multi-level grid index technology ; ( 2) the design of the database structure . The database structure is the cornerstone of spatial data access and release , design a data source - data set - three of space objects data storage system ; ( 3 ) cache data structure design . The cache data is critical to improve access speed , vector data and raster data , respectively , have made ??the design ; (4 ) cache - based spatial data released middleware implementations and working mechanisms . Object-oriented data access middleware , discussed the working mechanism of the middleware .

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CLC: > Industrial Technology > Automation technology,computer technology > Computing technology,computer technology > Computer software > Program design,software engineering > Programming > Database theory and systems
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