The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences. Vol. XXXVII. Part B4. Beijing 2008
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Building seamless multi-scale database is an interesting
research in 3D GIS. The strategy in this paper is an approach
worth further studying and putting it into implementation. In 3D
GIS, the precise of the vertexes elevation is an important factor
in the quality of terrain model. And the spreading error of the
sample points also has influence on the precise of terrain model.
When the data is stored and updated in DBMS, it couldn’t
ensure the validity of the data. So the future work will focus on
evaluating the precision of the generated TIN, the spreading of
the error and the validity of storage.
Figureó. Data selected to construct the TIN
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ACKNOWLEDGMENT
The work described in this paper was jointly supported by the
funds from the national natural science foundation of China (No.
40601075).
