header > images > animations > footer

Streamarrows -- Results

Topic: Streamarrows: Visualizing Multiple Layers of Streamsurfaces
by Löffelmann H., Mroz L., Gröller E., and Purgathofer W.

Duration: 1996-1997

This page assembles some results (five images and seven animation sequences) of a project at our department in spring, 1996. The images are provided in JPEG format and the animation sequences are given as short MPEG video clips. A video compromising all the MPEG clips has been produced as well. This work has been done in the scope of our research topic ``Visualization of Complex Dynamical Systems''.

header < images > animations > footer

Color Images (JPEG)

Five still images have been rendered as one part of our results. Plate 3 and 4 has been taken from one of the animation sequences, Plate 5 is a snapshot of the AVS network used for rendering another MPEG clip. Plate 1 and 2 are demonstrating particular aspects of our approach.

[plate 1]The first image (plate 1, ~52KB) shows a streamsurface of a dynamical system. Our streamarrows texture was applied to this streamsurface.

[plate 2][texture][spot]The second image (plate 2, ~82KB) shows the same streamsurface. This image was generated by applying a particular spot noise texture to emphasize the inner-streamsurface evolution induced by the dynamical system. A hash-shaped spot (see the image at the right side) was used to generate the texture (~31KB).

[plate 3]The third image (plate 3, ~93KB) shows two streamsurfaces. The one to the left is the same surface as in figure 1 and 2, the other streamsurface was generated by letting the time run backwards instead of forwards. This image was taken from animation sequence 3b (see below) and changed just a little bit.

[plate 4]The fourth image (plate 4, ~88KB) shows the same configuration as figure 3, but the plane ``cutting away'' parts of the visual representation has been moved deeper into the model. This images was also taken from animation sequence 3b (see below) and changed just slightly.

[plate 5]The fifth image (plate 5, ~28KB) shows the AVS net that was used to render animation sequence 2a (see below).

header < images < animations > footer

Animation Sequences (MPEG)

Seven animations has been rendered as results of our work. The numbering of these sequences is composed of a number, which distinguishes different viewpoints, and a letter, distinguishing the sequences from each other.

[1a-1][1a-2]The animation sequence 1a (~1.3MB) shows the streamsurface show in all of the images being constructed.

[1b-1][1b-2]The animation sequence 1b (~110KB) show the streamarrows texture smoothly applied.

[1c-1][1c-2]The animation sequence 1c (~350KB) should be cycled and shows the streamarrows texture being animated (moving along the streamsurface).

[2a-1][2a-2]The animation sequence 2a (~1.4MB) shows the same streamsurface as in the previous clips, but from another viewpoint. Additionally the inverse system is represented by another streamsurface being constructed.

[2b-1][2b-2]The animation sequence 2b (~450KB) was generated by applying a streamarrows texture to the second streamsurface as well and animating both. This sequenced can be cycled.

[3a-1][3a-2]The animation sequence 3a (~330KB) uses again another viewpoint. Now both rolls of a streamsurface are viewed from the side. This clip may be cycled as well.

[3b-1][3b-2]The animation sequence 3b (~2MB) was generated by moving a plane slowly through the model cutting parts ``above'' the plane away by making these parts semi-transparent.

header < images < animations < footer

helwig löffelmann, last update on march 4, 1996.