There is presently a variety of methods by which to create visualizations, and many of these require a great deal
of manual intervention. Even with those methods by which it is easy to create a single visual representation,
understanding the range of possible visual representations and exploring amongst them is difficult. We present
a generalized interface, called cogito, that permits the user to control exploration of the visualization output of
various manual tools, all without the requirement to modify the original tool. Programming within the cogito
API is required to connect to each tool, but it is not onerous. We consider that the exploratory experience or
activity is valuable, and that it is possible to easily create this experience for standard tools that do not normally
permit exploration. We illustrate this approach with several examples from different kinds of manual interfaces
and discuss the requirements of each.
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