To Appear in the Proceedings of IEEE Visualization '2000
Fast Visualization Methods for Comparing Dynamics:
A Case Study in Combustion
by
Kay A. Robbins and Michael Gorman

Paper

Abstract: Visualization can be an important tool for displaying, categorizing and digesting large quantities of inter-related information during laboratory and simulation experiments. Summary visualizations that compare and represent data sets in the context of a collection are particularly valuable. Applicable visualizations used in these settings must be fast (near real time) and should allow the addition of data sets as they are acquired without requiring rerendering of the visualization. This paper examines several visualization techniques for representing collections of data sets in a combustion experiment including spectral displays, tiling and geometric mappings of symmetry. The application provides insight into how such visualizations might be used in practical real-time settings to assist in exploration and in conducting parameter space surveys.

Keywords: Realtime visualization, steering, symmetry, tiling, pattern formation, movies.

 

Supporting Animations

The curves of total radial intensity were computed at 512 equally spaced angular positions. A 5-point averaging scheme was applied to each curve.


(Click Image to see animation.)		 Depiction of symmetry loss for State I of the radial extinction data set
The cylindrical object in this figure is constructed from the curves of total radial intensity as a function of angle in each frame. The horizontal plane indicates the position of the current frame in the figure. As the animation plays the plane moves upward so that the cross section with the cylinder is the total radial intensity as a function of angle for the corresponding frame. The corresponding frame of original video is shown at left. (See Figure 4 in the Color Plate of the paper.)


(Click Image to see animation.) 		An alternative depiction of symmetry loss for State I of the radial extinction data set
The curves of total radial intensity as a function of angle in each frame are overlaid on a single plot. The curve corresponding to the current frame is displayed in red. The corresponding frame of original video is shown at left. (See Figure 5 of the paper.)


(Click Image to see animation.) 		A comparison of symmetry loss across data sets.
The curves of total radial intensity as a function of angle for five radial extinction data sets (States A, C, E, G, and I) are combined to form a cylindrical iconization. State A corresponds to the bottom of the cylinder and state I corresponds to the top of the cylinder. The movie frames are aligned temporally so that frame 1 corresponds to a local maximum of front size for each movie. An animation of this as the frame number moves forward reveals relative differences in size, phase and symmetry. The corresponding frame of original video for State I is shown at left. (See Figure 6 of the paper.)

Last revision: June 25, 2000 at 8:45 am by K. A. Robbins