The Designment and Implementation of 3D Digital Earth’s
Unified Interface
Bachelor Candidate: Hao Luo Supervisor: Jianbo Zhang
ABSTRACT
The study and application of spatial information technology are increasingly foused on
multi-dimension and multi-ways. Using traditional 2D technology can not describe all kinds of
spatial information, and the field of Spatial information Technology is extanding because of the
application of 3D technology. 3D Spatial Information Technology, which has an vast technical
development space and prospect, is being more and more popular, and the application field keeps
extending and deepening.
This graduation thesis studied and analyzed the status of 3D digital earth software
development kit at home and abroad, and studied the application of OpenSceneGraph and
osgEarth. On the top of osgEarth, an cross-language, cross-platform and one-size-fits-all 3D
digital earth SDK HsEarth was designed and developed, and an development solution of pratical
and efficient 3D digital earth application was came up.
Here are the technologies need to be studied :
1) 3D scene rendering engine OpenSceneGraph and 3D mapping SDK osgEarth
2) Cross-platform multithread library OpenThreads
3) COM and ATL technologies
4) FireBreath, the tool of building cross-browser plugin
5) CMake, the tool of building cross-platform projects.
6) Programming knowledge of Linux and QT
7) Knowledge of developing Android NDK application
Here is the content of the project development :
1) Collecting project requirements, designing project’s overall structure, and writing
project development plan and documents.
2) Modifying the source code of OpenSceneGraph and osgEarth.
3) Designing and developing core libraries HS_Libs, HS_OSG and HS_Threads.
4) Designing and developing library HS_Earth_Core that encapsulates osgEarth and core
libraries.
5) Designing and developing library HS_Earth that implements unified interface.
6) Designing and developing an COM component HS_Earth_COM, and developing
typical examples.
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