Teaching:TUW - UE InfoVis WS 2006/07 - Gruppe 08 - Aufgabe 3

Technique

We are interested in visualisation techniques that are especially well suited for data with an important time-dimension. Thus our choice would be Perspective Wall or Theme River. We are not sure yet, which one is suited better, so we would like to regard both, as long as possible. At the moment Perspective Wall seems like the better choice as important elements of it (bifocal display with distortion on the off-center viewports) are better suited for prefuse. add Bilder and Quellen

Data

How can we describe the usage of a technique without defining the data we want to present?

Tagebuch/Diary - person meeting people, being at places - in time.

The data will most likely be available in tabular form with the two most important dimensions being time and people. Prefuse provides extensive data input capabilities for tabular data that can be used.

Visual Mapping

Basic dimension is time. It is mapped to the horizontal axis.

Other dimensions are places and people. As long as one person is examined, the ribbon could be sliced vertically, according to places, where the person is, as one person can be only on one place at one time.

Other persons, ie persons the examined person meets or mentions, should be displayed in separate, parallel horizontal slices (in Perspective Wall). This makes the gist of the data (who met where when?) visible at one glance.

Interaction

• Zooming the time axis (from whole regarded data set to one day)
• Navigation to special date (but also eg just year)
• Query on places and persons visualized either as restriction (filtering) or through highlighting.

Data Input - How will the data come in?

Prototype

Mockup of possible Perspective Wall design to come