Content-Based Grid Node Selection for Vector Field Visualization

摘要

Data selection techniques are indispensable for exploration of large scientific datasets. In this paper we present a new technique for content-based data selection. This technique uses a selection expression, an expression consisting of conditions on data values. To select a set of grid nodes of a data set, the expression is evaluated for each grid node. The selected set of grid nodes can be visualized directly; it can also be used for further exploration of the dataset. (Copyright (c) 1993 by Faculty of Technical Mathematics and Informatics, Delft, The Netherlands.)