QLOD: A Data Structure for Interative Terrain Visualization
Rodrigo Toledo, Marcelo Gattass, Luiz Carlos Pacheco Rodrigues Velho · 2002
This work focuses on the use of hierarchical structures to interactively visualize terrains. Our purpose is to achieve real time three-dimensional visualization of terrain models obtained from a geographic information system. These models can represent a broad area of the Earth’s surface with detailed information, thus yielding very large datasets. For this reason, it is necessary to use a compatible structure to store and query this data. In this paper, we present a new data structure which combines advantages of different structures provided in the literature. We also discuss an implementation of these ideas and a series of tests, drawing several conclusions from them.