Content Based-Grid Node Selection for Vector Field Visualization

摘要

Data selection techniques are indispensable for exploration of large scientificdatasets. A technique for content-based data selection is presented. 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 be also be used for further exploration of the dataset.