VISUALIZATION OF STREAM LINES AND METHODS FOR COMPLEX VISUALIZATION OF DESCRETE VECTOR FIELDS
K. V. Dedkova, D. V. Mogilenskikh, I. V. Pavlov, V. V. Fedorov
VANT. Ser.: Mat. Mod. Fiz. Proc 2005. Вып.1. С. 71-79.
The paper describes methods for post-processing and visualization of continuum mechanics problems numerically simulated with difference methods, in particular, processing and visualization of vector fields. Simulation methods using 2D regular difference grids are used as an example. A vector variable U is set for such a grid. Two coordinate components of the vector (Ux,Uy) are specified for each node. Each component is a scalar. Vector field is stored as two matrices Ux[M, N], Uy[M,N], where M, N are grid dimensionality. Paper describes: 1. Algorithm for approximate determination and visualization of stream lines (SL) — post-processing of the results and determination of implicit information. 2. Functions of SL visualization — visualization methods. 3. Methods of combined application of SL visualization with other visualization functions — information content increase. Ideas of Gouraund and Phong shading algorithms are proposed for determination of SL vector field. The paper presents methods of animating pseudo-dynamics of SL vector fields and their implementation.
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English
