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VISUALIZING QUATERNIONS
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To order this title, and for more information, click here
By
Andrew Hanson, Indiana University, Bloomington, U.S.A.
Reviews
?Almost all computer graphics practitioners have a good grasp of the 3D Cartesian space. However, in many graphics applications, orientations
and rotations are equally important, and the concepts and tools related to rotations are less well-known.
Quaternions are the key
tool for understanding and manipulating orientations and rotations, and this book does a masterful job of making quaternions accessible.
It excels not only in its scholarship, but also provides enough detailed figures and examples to expose the subtleties encountered when
using quaternions. This is a book our field has needed for twenty years and I'm thrilled it is finally here.?
—Peter Shirley,
Professor, University of Utah
?This book contains all that you would want to know about quaternions, including a great many things
that you don't yet realize that you want to know!?
—Alyn Rockwood, Vice President, ACM SIGGRAPH
?We need to use quaternions
any time we have to interpolate orientations, for animating a camera move, simulating a rollercoaster ride, indicating fluid vorticity
or displaying a folded protein, and it's all too easy to do it wrong. This book presents gently but deeply the relationship between orientations
in 3D and the differential geometry of the three-sphere in 4D that we all need to understand to be proficient in modern science and engineering,
and especially computer graphics.?
—John C. Hart, Associate Professor, Department of Computer Science, University of Illinois
Urbana-Champaign, and Editor-in-Chief, ACM Transactions on Graphics
?Visualizing Quaternions is a comprehensive,
yet superbly readable introduction to the concepts, mechanics, geometry, and graphical applications of Hamilton's lasting contribution
to the mathematical description of the real world. To write effectively on this subject, an author has to be a mathematician, physicist
and computer scientist; Hanson is all three.
Still, the reader can afford to be much less learned since the patient and detailed explanations
makes this book an easy read.?
—George K. Francis, Professor, Mathematics Department, University of Illinois at Urbana-Champaign
?The
new book, Visualizing Quaternions, will be welcomed by the many fans of Andy Hanson's SIGGRAPH course.?
—Anselmo
Lastra, University of North Carolina at Chapel Hill
?Andy Hanson's expository yet scholarly book is a stunning tour de force;
it is both long overdue, and a splendid surprise! Quaternions have been a perennial source of confusion for the computer graphics community,
which sorely needs this book. His enthusiasm for and deep knowledge of the subject shines through his exceptionally clear prose, as he
weaves together a story encompassing branches of mathematics from group theory to differential geometry to Fourier analysis. Hanson leads
the reader through the thicket of interlocking mathematical frameworks using visualization as the path, providing geometric interpretations
of quaternion properties.
The first part of the book features a lucid explanation of how quaternions work that is suitable for a broad
audience, covering such fundamental application areas as handling camera trajectories or the rolling ball interaction model. The middle
section will inform even a mathematically sophisticated audience, with careful development of the more subtle implications of quaternions
that have often been misunderstood, and presentation of less obvious quaternion applications such as visualizing vector field streamlines
or the motion envelope of the human shoulder joint. The book concludes with a bridge to the mathematics of higher dimensional analogues
to quaternions, namely octonians and Clifford algebra, that is designed to be accessible to computer scientists as well as mathematicians.?
—Tamara
Munzner, University of British Columbia
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