supported by the National Natural Science Foundation of China(No.60502008);the National 863 High-Tech Program of China(No.2011AA120302).
Adaptive rendering of large urban building models has become an important research issue in three-dimensional(3D)geographic information system(GIS)applications.This study explores a way for rendering web-based 3D urba...
supported by National Natural Science Foundation of China(Grant No.60502008);National High-Tech Program of China(863)(Grant No.2011AA120302)
Light detecting and ranging (LiDAR) technology has become an effective way to generate high- resolution digital terrain models (DTMs). To generate DTMs, point measurements from non-ground features, such as buildin...
supported by the National Natural Science Foundation of China (Grant No. 60502008);the National High-Tech Research & Development Program of China (Grant Nos. 2006AA12Z220,2007AA12Z226);Program for New Century Excellent Talents in University (Grant No. NCET-07-0099)
This paper presents an efficient way to render large-scale vector maps on level-of-detail (LOD) digital elevation models (DEMs). By using the frame buffer and Voronoi diagram, we achieve a rapid simplification of ...
supported by National Natural Science Foundation of China (Grant No.60502008);Hi-tech Research and Development Program of China (Grant Nos.2006AA12Z220 and 2007AA12Z226);Program for New Century Excellent Talents in University (Grant No.NCET-07-0099)
In the application of 3D Geoscience Modeling,we often need to generate the volumetric representations of geological bodies from their surface representations.Linear octree,as an efficient and easily operated volumetri...
the National High-Tech Research & Development Program of China (Grant Nos. 2006AA12Z220, 2006AA12Z114);the National Basic Research Program of China (Grant No. 2007CB714403);the National Natural Science Foundation of China (Grant No. 60502008)
Adaptive rendering large and complex spatial data has become an important research issue in a 3DGIS application. In order to transmit the data to the client efficiently, this paper proposes a node-layer data model to ...