5 Graph Description Language (GDL) - Absint

Figure 11: Polar Fish-Eye View
Self-Adaptable Fish-Eye View: This is the default mode when fish-eye view is activated. Here
the whole graph is visible. The distortion scale of the fish-eye view is automatically adapted to the
current fish-eye view so that the graph just fits in the window.
The position of the focus in the window corresponds to the position of the focus in the graph. This
way the user can extrapolate from the position of the focus in the window to the position of the
focus in the graph. If the focus is positioned in the middle of the graph window this means that
the user is viewing the middle part of the graph. If the focus is closer to e. g. near the upper frame
of the graph window this means that the user is viewing the upper part of the graph. This helps to
maintain orientation when browsing through the graph.
Fish-Eye View with a Fixed Radius: In this mode, the whole graph is not visible but rather only
a fixed radius around the focus.
In this case, the focus is always centered in the graph window.
This view is selected when the fixed radius fish-eye parameter is enabled in the View dialog box.
After enabling this mode the radius of the visible region around the focus can be changed using a
scrollbar (Radius item).
35