Geo-DBMS : data management of 3D spatial objects
This paper describes one aspect of 3D GIS research that is the data management of 3D objects.Current geo-database can manage large spatial data sets and able to provide access to multi users. Lately there are growing tendency towards the multifunctional use of space i.e. above and below the ground s...
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| Main Authors: | , , |
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| Format: | Conference or Workshop Item |
| Language: | English |
| Published: |
2008
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| Subjects: | |
| Online Access: | http://eprints.utm.my/id/eprint/7819/1/GEO-DBMS__DATA_MANAGEMENT_OF_3D_SPATIAL_OBJECTS.pdf http://eprints.utm.my/id/eprint/7819/ http://dms.library.utm.my:8080/vital/access/manager/Repository/vital:102438 |
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| Summary: | This paper describes one aspect of 3D GIS research that is the data management of 3D objects.Current geo-database can manage large spatial data sets and able to provide access to multi users. Lately there are growing tendency towards the multifunctional use of space i.e. above and below the ground surface. Applications such as urban planning, telecommunication and 3D cadastre depend on 3D data. Thus, the needs for managing the 3D spatial datasets especially for large area are inevitable. Besides this, data acquisition technique has also motivates us for a more practical data structure(s) towards a data model for 3D GIS. A discussion on how to establish these data structures for managing 3D spatial objects form major discussion of this paper. 3D primitives like points, lines, polygons and solids are part of the primitives. The mapping of this structure in Oracle Spatial will be highlighted as well. Since geo-spatial database can handle large amount of data, we propose a practical data management and test by using real world datasets. In the experiment, the management of the 3D objects and appropriate indexing method is also discussed. Our experiment will only use simple 3D objects and will be visualized through other application software such as Autodesk Map3D or Bentley MicroStation. Simple query within the SQL for the 3D objects is also possible. The paper also will highlight the future outlook of the data structuring approach for managing large volume of 3D spatial objects and relates with current research development in 3D GIS. |
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