Object-oriented data management for interactive visual analysis of three-dimensional fluid-flow models

Sandra S. Walther; Richard L. Peskin

doi:10.1117/12.44399

1 June 1991 Object-oriented data management for interactive visual analysis of three-dimensional fluid-flow models

Sandra S. Walther, Richard L. Peskin

Proceedings Volume 1459, Extracting Meaning from Complex Data: Processing, Display, Interaction II; (1991) https://doi.org/10.1117/12.44399
Event: Electronic Imaging '91, 1991, San Jose, CA, United States

Abstract

A strategy that allows researchers interactively to visualize, analyze, and query scientific data from computational modeling is presented. The strategy, implemented in an object-oriented visualization interface, addresses a key issue in interactive data analysis, namely, how the user can maintain a direct connection between the visual representation on the screen and the actual data set. This is accomplished by constructing hashing maps to a data set of objects based on the unique spatio-temporal coordinates of each object. A plane is defined as a two-dimensional array of objects; a volume, as an array of planes. A timeseries is an array of volumes. The indices of the arrays are mapped to the mesh values of the computation along the relevant axis. These data structures provide the programmatic elements to manage data as volumes over time. The data itself is collected into an indexed list as it occurs; the volumetric temporal organization is constructed as a set of maps that point to the location of the original data. All queries to the data are framed as queries about these maps and are in effect queries about the computational mesh. Thus, from one data organization format, nonlocal values in the mesh can be retrieved; polygons, triangles and contours can be constructed and visualized. Physical formations (pathlines, streamlines, streaklines) can be computed.

Citation Download Citation

Sandra S. Walther and Richard L. Peskin "Object-oriented data management for interactive visual analysis of three-dimensional fluid-flow models", Proc. SPIE 1459, Extracting Meaning from Complex Data: Processing, Display, Interaction II, (1 June 1991); https://doi.org/10.1117/12.44399

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