Journal of System Simulation
Abstract
Abstract: In the geographic information system (GIS), vector data has many important applications in such aspects as orientation space location and spatial analysis. It is essential to make 2D vector data overlay mapping to the 3d terrain accurately and efficiently in 3D GIS. A method based on dynamic vector texture pyramid was proposed to render vector data. The real-time generated vector texture block corresponding with the level of the pyramid according to the current view position. Vector data texture block and terrain block are one-to-one correspondence, then they are unified rendering. Unconstrained anisotropic texture filtering methods was used to reduce the texture aliasing problem. Because this method is independent of the underlying terrain geometry, so that it can combine with most multi-resolution terrain rendering methods. Experiments using multi-vector data in the digital earth system show the presented method has higher efficiency and better rendering effect.
Recommended Citation
Li, Shanglin; Xia, Hu; and Liu, Xiaoping
(2020)
"Precisely and Efficiently Vector Data Rendering Method in 3D GIS,"
Journal of System Simulation: Vol. 29:
Iss.
5, Article 5.
DOI: 10.16182/j.issn1004731x.joss.201705005
Available at:
https://dc-china-simulation.researchcommons.org/journal/vol29/iss5/5
First Page
965
Revised Date
2015-07-06
DOI Link
https://doi.org/10.16182/j.issn1004731x.joss.201705005
Last Page
972
CLC
TP391
Recommended Citation
Li Shanglin, Hu Xia, Liu Xiaoping. Precisely and Efficiently Vector Data Rendering Method in 3D GIS[J]. Journal of System Simulation, 2017, 29(5): 965-972.
DOI
10.16182/j.issn1004731x.joss.201705005
Included in
Artificial Intelligence and Robotics Commons, Computer Engineering Commons, Numerical Analysis and Scientific Computing Commons, Operations Research, Systems Engineering and Industrial Engineering Commons, Systems Science Commons