Hexahedron-Based Cell-Traversal in Streamline Visualization
Xing Hu · Journal of Engineering Graphics · 2002
In CFD vector field visualization streamline is an important technique. Aiming at data sets of three-dimensional steady vector fields with irregular structured grids, this dissertation studies on the visualization techniques of streamline. This paper concerns mainly on the issues about cell-traversal (point location and cell searching) in streamline generation algorithm, analyzes two important factsthe approximation to Jacobian matrix and the inconsistency between geometry and topology in hexahedron cellsthat affect algorithmic precision. Hexahedron-based approaches for algorithmic improvement are presented.