TerraVision II: visualizing massive terrain databases in VRML
- 1 January 1999
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Computer Graphics and Applications
- Vol. 19 (2) , 30-38
- https://doi.org/10.1109/38.749120
Abstract
We describe designing and generating massive terrain data sets using VRML 97. Our design aims for efficient navigation of geo-referenced terrain data sets using a standard VRML browser. This involves issues such as navigating models with many millions of polygons, managing deep level-of-detail (LOD) hierarchies, dealing with data precision problems to model the earth at submeter resolution, translating between geographic coordinate systems, and dynamically selecting different sets of geo-referenced data. We present solutions to all of these problems using currently available technologies. We also present a custom terrain visualization package called TerraVision II engineered to efficiently and seamlessly browse the VRML constructs that we create. This specialized browser, along with various software tools that implement our work, is freely available to the VRML community to encourage and facilitate further work in this area.Keywords
This publication has 9 references indexed in Scilit:
- TerraVision II: visualizing massive terrain databases in VRMLIEEE Computer Graphics and Applications, 1999
- Integratig geographic information in VRML modelsPublished by Association for Computing Machinery (ACM) ,1998
- Simplicial maps for progressive transmission of polygonal surfacesPublished by Association for Computing Machinery (ACM) ,1998
- Going virtual with geographic information and scientific visualizationComputers & Geosciences, 1997
- View-dependent refinement of progressive meshesPublished by Association for Computing Machinery (ACM) ,1997
- Real-time, continuous level of detail rendering of height fieldsPublished by Association for Computing Machinery (ACM) ,1996
- Methods for user-based reduction of model complexity for virtual planetary explorationPublished by SPIE-Intl Soc Optical Eng ,1993
- NPSNET: Hierarchical data structures for real-time three-dimensional visual simulationComputers & Graphics, 1993
- Decimation of triangle meshesPublished by Association for Computing Machinery (ACM) ,1992