数字地图的三维可视化研究及其若干应用

奚大平; 江文萍

Volume 27 Issue 3

May 2002

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Article Navigation > Earth Science > 2002 > 27(3): 278-284

XI Da-ping, JIANG Wen-ping, 2002. Research and Application of Three-Dimensional Visibility Based on Digital Map. Earth Science, 27(3): 278-284.

Citation:

XI Da-ping, JIANG Wen-ping, 2002. Research and Application of Three-Dimensional Visibility Based on Digital Map. Earth Science, 27(3): 278-284.

XI Da-ping, JIANG Wen-ping, 2002. Research and Application of Three-Dimensional Visibility Based on Digital Map. Earth Science, 27(3): 278-284.

Citation:

XI Da-ping, JIANG Wen-ping, 2002. Research and Application of Three-Dimensional Visibility Based on Digital Map. Earth Science, 27(3): 278-284.

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Research and Application of Three-Dimensional Visibility Based on Digital Map

XI Da-ping^1
,,
JIANG Wen-ping²

1.
Faculty of Information Engineering, China University of Geosciences, Wuhan 430074, China
2.
Faculty of Resources and Environment Science, Wuhan University, Wuhan 430079, China

Received Date: 2001-11-16
Publish Date: 2002-05-25

Abstract

Abstract

The application of 3D visibility theory and technology in the cartography science promotes the evolution of the traditional, static and planar maps toward the dynamical and 3D maps, and this has become a new research field of geographic information system (GIS) and digital cartography. The study on the digital map and database provides the edgecutting technology and abundant data resources for the research on 3D maps. This paper discusses the construction of digital elevation model (DEM) which is based on contour and scattered elevation points, the modeling based on DEM and display of other elements of topography map, such as block, street, residential area, vegetation, road network and water system, etc. and gives an account of the establishment of 3D topographical symbol library, dynamical display of the model and the overlay representation with orthographic image. Finally, it explores the application of the 3D visibility technology in shaded relief maps, simulant flights, and virtual cities, etc.
- digital map,
- 3D visibility,
- digital elevation model,
- shaded relief map,
- simulant flight,
- virtual city

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References(7)

References

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