doi:10.1016/S0167-739X(98)00054-5
Copyright © 1999 Elsevier Science B.V. All rights reserved.
Visualization of dynamical systems
Vienna University of Technology, A-1040, Vienna, Austria
Available online 16 September 1999.
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Abstract
The visualization of analytically defined dynamical systems is important for a thorough understanding of the underlying system behavior. An introduction to analytically defined dynamical systems is given. Various visualization techniques for dynamical systems are discussed. Several current research directions concerning the visualization of dynamical systems are treated in more detail. These are: texture-based techniques, visualization of high-dimensional dynamical systems, advanced streamsurface representations, local analyses – Poincaré sections, visualizing econometric models.
Author Keywords: Dynamical system; Visualization; Texture; Multidimensional data; Parallel coordinates; Streamsurface; Econometric model; Poincaré section
Fig. 1. (a) White noise texture; (b) 2D vector field; (c) LIC: white noise texture filtered according to the vector field.
Fig. 2. OLIC: LIC with sparse texture and ramp-like kernel-function.
Fig. 3. (a) LIC image of circular flow; (b) OLIC image with clockwise flow; (c) OLIC image with counterclockwise flow.
Fig. 4. A discrete sampled trajectory in parallel coordinates (left) and a three-dimensional extruded surface defining the same trajectory (right).
Fig. 5. Extruded parallel coordinates illustrate three trajectories of a five-dimensional system.
Fig. 6. Two-dimensional base trajectory with two wings (for the third and fourth dimension) linked to it.
Fig. 7. (a) Linking with wings of an econometric model; (b) Hedge-hog visualization of a four-dimensional data set.
Fig. 8. Three-dimensional parallel coordinates.
Fig. 9. (a) A six-dimensional stacked predator–prey model with simple linkage; (b) Complex linkage with highlighted time interval for the trajectory of a chaotic attractor.
Fig. 10. Two examples of streamsurfaces with stream arrows.
Fig. 11. Spot (enlarged) and the resulting spot-noise texture.
Fig. 12. (a) Streamsurface with anisotropic spot-noise texture; (b) Stream arrows shifted out of the stream surface and anisotropic spot noise.
Fig. 13. An illustration of the Poincaré map definition.
Fig. 14. (a) Poincaré map visualized with directed strokes; (b) addition of spot-noise, streamlines and streamsurface.
Fig. 15. (a) A texture on the Poincaré section (b) is distorted after repeated applications of Poincaré map P.
Fig. 16. (a) A typical trajectory of the Dynastic Cycle; (b) A chaotic trajectory of the Dynastic Cycle.
Fig. 17. (a) Wonderland model with critical manifolds (escape scenario); (b) particle system visualizes flow close to a critical manifold.