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Abstract

Fast Oriented Line Integral Convolution (FROLIC), which is a variant of LIC, illustrates 2D vector fields by approximating a streamlet by a set of disks with varying intensity. FROLIC does not only show the direction of the flow but also its orientation. This paper presents color-table animation of FROLIC images. Various color-table compositions are discussed in detail. When animating FROLIC images visual artifacts (pulsation, synchronization) must be avoided. Several strategies in this respect are dealt with. Color-table animation of FROLIC has been implemented as Visual C++ application for Windows NT, whereby the calculation of the dynamical system is performed with Mathematica. This allows researchers from various disciplines to conveniently explore and investigate analytically defined 2D and 3D vector fields.

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BibTeX

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@techreport{Berger-1998-Col,
  title =      "Color-Table Animation of Fast Oriented Line
               Integral
Convolution
  				 for Vector Field Visualization",
  author =     "Siegrun Berger and Meister Eduard Gr{\"o}ller",
  year =       "1998",
  abstract =   "Fast Oriented Line Integral Convolution (FROLIC), which is a
               variant of LIC, illustrates 2D vector fields by
               approximating a streamlet by a set of disks with varying
               intensity. FROLIC does not only show the direction of the
               flow but also its orientation. This paper presents
               color-table animation of FROLIC images. Various color-table
               compositions are discussed in detail. When animating FROLIC
               images visual artifacts (pulsation, synchronization) must be
               avoided. Several strategies in this respect are dealt with.
               Color-table animation of FROLIC has been implemented as
               Visual C++ application for Windows NT, whereby the
               calculation of the dynamical system is performed with
               Mathematica. This allows researchers from various
               disciplines to conveniently explore and investigate  
               		analytically defined 2D and 3D vector fields.",
  address =    "Favoritenstrasse 9-11/186, A-1040 Vienna, Austria",
  institution = "Institute of Computer Graphics and Algorithms, Vienna
               University of Technology",
  note =       "human contact: technical-report@cg.tuwien.ac.at",
  month =      jul,
  number =     "TR-186-2-98-22",
  keywords =   "color-table animation, Line Integral Convolution, FROLIC",
  URL =        "http://www.cg.tuwien.ac.at/research/publications/1998/Berger-1998-Col/",
}