HYBRID TERRAIN VISUALIZATION BASED ON LOCAL TESSELLATIONS

E. G. Paredes, C. Lema, M. Amor, M. Bóo

Abstract

Hybrid terrain models represent an effective approach to combine geographic data with different acquisition properties. Terrain models constituted by regular grid elevation data may locally integrate detailed TIN meshes to represent morphologically complex terrain features and artificial objects. However, direct rendering of hybrid terrain models poses additional difficulties: holes and geometric discontinuities between the borders of the different parts would appear in the images. In this paper we present two new software based proposals for efficient hybrid terrain visualization. Both proposals generate high-quality geometrically continuous models and support multiresolution methods over regular grids.

References

  1. Amor, M. and Bóo, M. (2008). A New Architecture for Efficient Hybrid Representation of Terrains. Journal of Systems Architecture, 54(1-2):145-160.
  2. Bóo, M., Amor, M., and Döllner, J. (2007). Unified Hybrid Terrain Representation Based on Local Convexifications. Geoinformatica, 11(3):331-357.
  3. Dykes, J., MacEachren, A., and Kraak, M.-J. (2005). Exploring Geovisualization. Elsevier.
  4. Gueziec, A. (1995). Surface simplification with variable tolerance. Second Annual Intl. Symp. on Medical Robotics and Computer Assisted Surgery (MRCAS'95), pages 132-139.
  5. Luebke, D., Reddy, M., Cohen, J., Varshney, A., Watson, B., and Huebner, R. (2002). Level of Detail for 3D Graphics. Computer Graphics and Geometric Modeling. Morgan Kaufmann Publishers.
  6. Seidel, R. (1991). A Simple and Fast Incremental Randomized Algorithm for Computing Trapezoidal Decompositions and for Triangulating Polygons. Comput. Geom. Theory Appl., 1(1):51-64.
  7. VTerrain (2008). http://www.vterrain.org.
Download


Paper Citation


in Harvard Style

Paredes E., Lema C., Amor M. and Bóo M. (2009). HYBRID TERRAIN VISUALIZATION BASED ON LOCAL TESSELLATIONS . In Proceedings of the Fourth International Conference on Computer Graphics Theory and Applications - Volume 1: GRAPP, (VISIGRAPP 2009) ISBN 978-989-8111-67-8, pages 64-69. DOI: 10.5220/0001768200640069


in Bibtex Style

@conference{grapp09,
author={E. G. Paredes and C. Lema and M. Amor and M. Bóo},
title={HYBRID TERRAIN VISUALIZATION BASED ON LOCAL TESSELLATIONS},
booktitle={Proceedings of the Fourth International Conference on Computer Graphics Theory and Applications - Volume 1: GRAPP, (VISIGRAPP 2009)},
year={2009},
pages={64-69},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0001768200640069},
isbn={978-989-8111-67-8},
}


in EndNote Style

TY - CONF
JO - Proceedings of the Fourth International Conference on Computer Graphics Theory and Applications - Volume 1: GRAPP, (VISIGRAPP 2009)
TI - HYBRID TERRAIN VISUALIZATION BASED ON LOCAL TESSELLATIONS
SN - 978-989-8111-67-8
AU - Paredes E.
AU - Lema C.
AU - Amor M.
AU - Bóo M.
PY - 2009
SP - 64
EP - 69
DO - 10.5220/0001768200640069