Why zoom? Three example applications

Once you add zooming to a user interface, new kinds of interactions are possible. The following sections introduce three sample applications that we have developed which use zooming.

1. An outline viewer

The Pan/Zoom space is a powerful visualisation for any kind of hierarchical data - nested details can be shown at a smaller scale, conveying the relations between objects very naturally.

For example, we have developed an interactive outline viewer which we use for giving presentations. The outline viewer shows the text of the whole presentation - you simply zoom in on the points you want to make.

Main topic headings are shown at a large scale, subheadings are shown at a smaller scale, and individual points are shown even smaller.

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