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http://dx.doi.org/10.7319/kogsis.2017.25.1.055

3D Tile Application Method for Improvement of Performance of V-world 3D Map Service  

Kim, Tae Hoon (IT Research Laboratory, ICTWAY)
Jang, Han Sol (IT Research Laboratory, ICTWAY)
Yoo, Sung Hwan (IT Research Laboratory, ICTWAY)
Go, Jun Hee (IT Research Laboratory, ICTWAY)
Publication Information
Journal of Korean Society for Geospatial Information Science / v.25, no.1, 2017 , pp. 55-61 More about this Journal
Abstract
The V-world, korean type spatial information open platform, provides various services to easily utilize 2D, 3D map and administrative information of the country. Among them, V-world 3D map service, modeled in individual building unit, require requests for each building model file and the draw calls for drawing models on the screen by the request. This causes a large number of model requests and draw calls to occur that increase the latency occurring during the transmission and conversion process between the central processing unit(CPU) and the graphic processing unit(GPU), which lead to the performance degradation of the 3D map service. In this paper, we propose a performance improvement plan to reduce the performance degradation of 3D map service caused by multiple model requests and draw calls. Therefore, we tried to reduce the number of requests and draw calls for the model file by applying a 3D tile model that combined multiple building models to single tile. In addition, we applied the quadtree algorithm to reduce the time required to load the model file by shortening the retrieval time of the model. This is expected to contribute to improving the performance of 3D map service of V-world.
Keywords
V-world; Spatial Information Open Platform; 3D Tile; Quadtree;
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