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| Research on the 3 D LOD Model for Railway Station Based on OSG |
| PU Hao1，LUO Shi - xiao2，LI Wei1，LUO Hong - wei3 |
| (1. Central South University，Changsha，Hunan 410000，China; 2. National Engineering Laboratory for High Speed
Railway Construction，Central South University，Changsha，Hunan 410000, China;3. China Railway Siyuan Survey and
Design Group，Wuhan，Hubei 430063，China) |
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Abstract Abstract：Research purposes： The realization of 3D visualization model is an important part of BIM . Areal - time 3D
model can increase the accuracy and provide a reference for the results in the design of station. How to organize the data
on the base of large amount of equipment and the complicated situation and quickly generate a real - time 3D
visualization model to adapt to the requirements of the design stage and the smooth scheduling is the difficulty in the
creation.
Research conclusions:(1) The method of constructing hierarchical three - dimensional station model is proposed，and the problem of long loading time and demanding hardware for large data is solved. ( 2 ) A reasonable data management structure is proposed，and the modeling method independent of design data is established. ( 3 ) Based on this method，
complete the platform structures of three - dimensional station scene. The platform can achieve rapid modeling，dynamic loading and interactive browsing， which significantly improves the work efficiency. (4) The results can be widely applied to three - dimensional modeling and three - dimensional hierarchical scene management of roads，tunnels，water
conservancy and other engineering fields.
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Received: 09 March 2016
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2017, Vol. 34 
