RT Journal Article
JF IEEE Transactions on Visualization & Computer Graphics
YR 2009
VO 16
IS
SP 455
TI Representation-Independent In-Place Magnification with Sigma Lenses
A1 Olivier Bau,
A1 Caroline Appert,
A1 Emmanuel Pietriga,
K1 Graphical user interfaces
K1 visualization techniques and methodologies
K1 interaction techniques
K1 evaluation/methodology.
AB Focus+context interaction techniques based on the metaphor of lenses are used to navigate and interact with objects in large information spaces. They provide in-place magnification of a region of the display without requiring users to zoom into the representation and consequently lose context. In order to avoid occlusion of its immediate surroundings, the magnified region is often integrated in the context using smooth transitions based on spatial distortion. Such lenses have been developed for various types of representations using techniques often tightly coupled with the underlying graphics framework. We describe a representation-independent solution that can be implemented with minimal effort in different graphics frameworks, ranging from 3D graphics to rich multiscale 2D graphics combining text, bitmaps, and vector graphics. Our solution is not limited to spatial distortion and provides a unified model that makes it possible to define new focus+context interaction techniques based on lenses whose transition is defined by a combination of dynamic displacement and compositing functions. We present the results of a series of user evaluations that show that one such new lens, the speed-coupled blending lens, significantly outperforms all others.
PB IEEE Computer Society, [URL:http://www.computer.org]
SN 1077-2626
LA English
DO 10.1109/TVCG.2009.98
LK http://doi.ieeecomputersociety.org/10.1109/TVCG.2009.98