We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Visual Coherence for Large-Scale Line-Plot Visualizations.
- Authors
Muigg, Philipp; Hadwiger, Markus; Doleisch, Helmut; Gröller, Eduard
- Abstract
Displaying a large number of lines within a limited amount of screen space is a task that is common to many different classes of visualization techniques such as time-series visualizations, parallel coordinates, link-node diagrams, and phase-space diagrams. This paper addresses the challenging problems of cluttering and overdraw inherent to such visualizations. We generate a 2×2 tensor field during line rasterization that encodes the distribution of line orientations through each image pixel. Anisotropic diffusion of a noise texture is then used to generate a dense, coherent visualization of line orientation. In order to represent features of different scales, we employ a multi-resolution representation of the tensor field. The resulting technique can easily be applied to a wide variety of line-based visualizations. We demonstrate this for parallel coordinates, a time-series visualization, and a phase-space diagram. Furthermore, we demonstrate how to integrate a focus+context approach by incorporating a second tensor field. Our approach achieves interactive rendering performance for large data sets containing millions of data items, due to its image-based nature and ease of implementation on GPUs. Simulation results from computational fluid dynamics are used to evaluate the performance and usefulness of the proposed method.
- Subjects
VISUALIZATION; FLUID dynamics; IMAGE analysis; FLUID mechanics; TIME series analysis
- Publication
Computer Graphics Forum, 2011, Vol 30, Issue 3, p643
- ISSN
0167-7055
- Publication type
Article
- DOI
10.1111/j.1467-8659.2011.01913.x