This material may not be published, broadcast, rewritten or redistributed in whole or part without the express written permission of. 1, January/February 2007.īy Lisa Zyga, Copyright 2006 .Īll rights reserved. “A Transparently Scalable Visualization Architecture for Exploring the Universe.” IEEE Transactions on Visualization and Computer Graphics, Vol.
COSMIC VIEW THE UNIVERSE IN FORTY JUMPS SERIES
“With this framework, we’ve created a series of layers of objects across an enormous scale range, all on a single screen.”Ĭitation: Fu, Chi-Wing and Hanson, Andrew J. .Cosmic View: The Universe in Forty Jumps (1957), and itself the model for numerous later adapta- tions, among them games and online applications,25. “Our motivation was to create a framework for a real-time digital planetarium,” said Hanson. IMAX shows and planetarium presentations have excited young enthusiasts with their realistic animations, and as computational power continues to grow, the public can also benefit from Fu and Hanson’s scale visualization technology. Like previous computer graphics programs studying outer space, Fu and Hanson predict that this system could not only have use for astronomers and physicists studying the universe, but for educational and commercial purposes, as well. In their study, Fu and Hanson present a “powers-of-ten journey,” starting, e.g., from Earth (10 7 m) up through the solar system (10 13), the Pleiades cluster (10 18), the Andromeda galaxy (10 23), and beyond (see figure). According to this theory, space and time. The Big Bang theory is the prevailing cosmological description of the development of the universe. The content of the system-stars, galaxies, supernovae, etc.-comes from an extraordinary collection of data from exploration systems such as the Sloan Digital Sky Survey, the Bright Star Catalogue, Hubble and other telescopes. The universe (Latin: universus) is all of space and time and their contents, including planets, stars, galaxies, and all other forms of matter and energy. On a desktop computer, the program achieves interactive speeds. One of the novel PSC-based ideas in the architecture is a “depth rescaling method,” which can project objects across extreme scales with the needed precision by distorting the vertices of distant background objects.Īlso, to accelerate the rendering of objects during navigation, the system uses “environmental caching” and “object disappearance” to develop pre-rendered backgrounds and ignore objects that are not large or luminous enough to appear on the screen. “We extend that ‘powers of ten’ framework by making this system interactive instead of pre-computed and pre-stored.”įu and Hanson’s PSC system works by representing coordinates and vectors using logarithmic scaling methods, enabling the system to handle all scales in a single context for interactive control by the user. “We asked ourselves, ‘how do you provide that experience ?’” said Hanson. The scientists were inspired by a film called “Powers of Ten” by Eames and Eames, which itself was based on the 1957 children’s book Cosmic View: The Universe in Forty Jumps by Boeke. © 2006 IEEE.īecause a normal “zoom” feature would take an impractical amount of time due to the vast precision required, Fu and Hanson used a new approach: power-scaled coordinates (PSC).
COSMIC VIEW THE UNIVERSE IN FORTY JUMPS SOFTWARE
Hanson and Fu designed their software by extending the powers-of-ten framework, shown for common objects in this table.
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