Information

• Publication Type: Technical Report
• Workgroup(s)/Project(s):
  • Visualization Group
• Date: April 2003
• Number: TR-186-2-03-04
• Keywords: 3D flow visualization, illuminated streamlines, interactive exploration, focus+context visualization

Abstract

This paper presents several strategies to interactively explore 3D flow. Based on a fast illuminated streamlines algorithm, standard graphics hardware is sufficient to gain interactive rendering rates. Our approach does not require the user to have any prior knowledge of flow features. After the streamlines are computed in a short preprocessing time, the user can interactively change appearance and density of the streamlines to further explore the flow. Most important flow features like velocity or pressure not only can be mapped to all available streamline appearance properties like streamline width, material, opacity, but also to streamline density. To improve spatial perception of the 3D flow we apply techniques based on animation, depth cueing, and halos along a streamline if it is crossed by another streamline in the foreground. Finally, we make intense use of focus+context methods like magic volumes, region of interest driven streamline placing, and spotlights to solve the occlusion problem.

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BibTeX

@techreport{Mattausch-2003-SIE,
  title =      "Strategies for Interactive Exploration of 3D Flow Using
               Evenly-Spaced Illuminated Streamlines",
  author =     "Oliver Mattausch and Thomas Theu{\ss}l and Helwig Hauser and
               Meister Eduard Gr\"{o}ller",
  year =       "2003",
  abstract =   "This paper presents several strategies to interactively
               explore 3D flow. Based on a fast illuminated streamlines
               algorithm, standard graphics hardware is sufficient to gain
               interactive rendering rates.  Our approach does not require
               the user to have any prior knowledge of flow features. After
               the streamlines are computed in a short preprocessing time,
               the user can interactively change appearance and density of
               the streamlines to further explore the flow. Most important
               flow features like velocity or pressure not only can be
               mapped to all available streamline appearance properties
               like streamline width, material, opacity, but also to
               streamline density.  To improve spatial perception of the 3D
               flow we apply techniques based on animation, depth cueing,
               and halos along a streamline if it is crossed by another
               streamline in the foreground. Finally, we make intense use
               of focus+context methods like magic volumes, region of
               interest driven streamline placing, and spotlights to solve
               the occlusion                  problem.",
  month =      apr,
  number =     "TR-186-2-03-04",
  address =    "Favoritenstrasse 9-11/E193-02, A-1040 Vienna, Austria",
  institution = "Institute of Computer Graphics and Algorithms, Vienna
               University of Technology ",
  note =       "human contact: technical-report@cg.tuwien.ac.at",
  keywords =   "3D flow visualization, illuminated streamlines, interactive
               exploration, focus+context visualization",
  URL =        "/research/publications/2003/Mattausch-2003-SIE/",
}