A Semi-Global Approach to Interactive Visual Analysis of Multivariate Flow Simulation Data

Information

  • Publication Type: Journal Paper (without talk)
  • Workgroup(s)/Project(s):
  • Date: 2008
  • ISSN: 1811-8992
  • Journal: Computer Graphics & Geometry
  • Number: 3
  • Pages (from): 18
  • Pages (to): 35
  • Volume: 10
  • Keywords: global features, integral lines, flow visualization, recirculation

Abstract

We introduce a framework for interactive visualization of global flow features in large unsteady 3D flow fields. It is based on selective visualization using dense precomputed integral lines (streamlines, path lines) linked together with all other data attributes. This way we are able to provide an uniform and interactive environment for custom feature specification and visualization of non-local data aspects. These are related to the long term flow behavior, thus their description using only local properties is not possible. We demonstrate the benefits of working with semi-global features by a simple strategy for recognition of recirculation zones within 3D vector fields, judging on a self-proximity measure of integral lines.

Additional Files and Images

Additional images and videos

image01: Visualization with help of integral lines selected by a recirculation criterion. The color represents temperature. image01: Visualization with help of integral lines selected by a recirculation criterion. The color represents temperature.
image02: A comparison of visual analysis layers: Direct, local and global. Color represents velocity magnitude. image02: A comparison of visual analysis layers: Direct, local and global. Color represents velocity magnitude.
teaserimage: Illustration of local and global features combination. teaserimage: Illustration of local and global features combination.

Additional files

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BibTeX

@article{ilcik-2008-sgfa,
  title =      "A Semi-Global Approach to Interactive Visual Analysis of
               Multivariate Flow Simulation Data",
  author =     "Martin Il\v{c}\'{i}k",
  year =       "2008",
  abstract =   "We introduce a framework for interactive visualization of
               global flow features in large unsteady 3D flow fields. It is
               based on selective visualization using dense precomputed
               integral lines (streamlines, path lines) linked together
               with all other data attributes. This way we are able to
               provide an uniform and interactive environment for custom
               feature specification and visualization of non-local data
               aspects. These are related to the long term flow behavior,
               thus their description using only local properties is not
               possible. We demonstrate the benefits of working with
               semi-global features by a simple strategy for recognition of
               recirculation zones within 3D vector fields, judging on a
               self-proximity measure of integral lines.",
  issn =       "1811-8992",
  journal =    "Computer Graphics & Geometry",
  number =     "3",
  volume =     "10",
  pages =      "18--35",
  keywords =   "global features, integral lines, flow visualization,
               recirculation",
  URL =        "https://www.cg.tuwien.ac.at/research/publications/2008/ilcik-2008-sgfa/",
}