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DAGSTUHL
2010
13 years 9 months ago
CSG Operations of Arbitrary Primitives with Interval Arithmetic and Real-Time Ray Casting
We apply Knoll et al.'s algorithm [9] to interactively ray-cast constructive solid geometry (CSG) objects of arbitrary primitives represented as implicit functions. Whereas m...
Younis Hijazi, Aaron Knoll, Mathias Schott, Andrew...
GIS
2009
ACM
14 years 8 months ago
Efficient and Secure Distribution of Massive Geo-Spatial Data
Modern geographic databases can contain a large volume of data that need to be distributed to subscribed customers. The data can be modeled as a cube, where typical dimensions inc...
Hao Yuan, Mikhail J. Atallah
PRESENCE
1998
78views more  PRESENCE 1998»
13 years 7 months ago
The Effects of Metals and Interfering Fields on Electromagnetic Trackers
The operation of six degree-of-freedom electromagnetic trackers is based on the spatial properties of the electromagnetic fields generated by three small coils. Anything in the e...
Mark A. Nixon, Bruce C. McCallum, W. Richard Frigh...
CORR
2010
Springer
173views Education» more  CORR 2010»
13 years 7 months ago
Towards Conceptual Multidimensional Design in Decision Support Systems
Multidimensional databases support efficiently on-line analytical processing (OLAP). In this paper, we depict a model dedicated to multidimensional databases. The approach we prese...
Olivier Teste
GIS
2008
ACM
14 years 8 months ago
Efficient data modeling and querying system for multi-dimensional spatial data
Multi-dimensional spatial data are obtained when a number of data acquisition devices are deployed at different locations to measure a certain set of attributes of the study subje...
Wei Li, Cindy X. Chen