Title: Efficient and accurate rendering of vector data on virtual landscapes
Authors: Schneider, Martin
Klein, Reinhard
Citation: Journal of WSCG. 2007, vol. 15, no. 1-3, p. 59-66.
Issue Date: 2007
Publisher: Václav Skala - UNION Agency
Document type: článek
URI: http://wscg.zcu.cz/wscg2007/Papers_2007/journal/!WSCG2007_Journal_Final.zip
ISBN: 978-80-86943-00-8
ISSN: 1213-6972 (hardcopy)
1213-6964 (online)
1213-6980 (CD-ROM)
Keywords: vektorová data;vykreslování;geografické informační systémy;stínové objemy;terén
Keywords in different language: vector data;rendering;geographical information systems;shadow volumes;terrain
Abstract: In geographical information systems (GIS) vector data has important applications in the analysis and management of virtual landscapes. Therefore, methods that allow combined visualization of terrain and geo-spatial vector data are required. Such methods have to adapt the vector data to the terrain surface and to ensure a precise and efficient mapping. In this paper, we present a method that is based on the stencil shadow volume algorithm and allows high-quality real-time overlay of vector data on virtual landscapes. Since the method is a screen-space algorithm it is per-pixel exact and does not suffer from aliasing artifacts like texture-based techniques. In addition, since the method is independent of the underlying terrain geometry, its performance does not depend on the complexity of the data set but only on the complexity of the vector data.
Rights: © Václav Skala - UNION Agency
Appears in Collections:Volume 15, number 1-3 (2007)

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Please use this identifier to cite or link to this item: http://hdl.handle.net/11025/1431

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